chip preparation and chip properties_no recomendations
TRANSCRIPT
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 113
Stora Enso Pulp Competence CentreChemical Pulp RampDKarlstad Research CentreBox 9090S-650 09 Karlstad Sweden+46-54 775 31 00
Chemical Pulp RampDImatra Research CentreFI-55800 ImatraFinland+358-204 61 21
Pulp Competence CentreBox 34S-814 21 SkutskaumlrSweden+46-26 855 00
983107983144983145983152 983120983154983141983152983137983154983137983156983145983151983150 983137983150983140 983107983144983145983152 983120983154983151983152983141983154983156983145983141983155
983125983148983148983137 983114983137983150983155983155983151983150This part of the Montes del Plata raw material
study describes the chip preparation and the
result of the chip analysis The data will be
used in reports covering the result from
laboratory cooking and bleaching and pulp
property interpretation
62 different stands covering 5 different
eucalyptus species ( Egrandis Edunnii
Eglobulus Emaidenii Ebicostata) 4
different soil types (2 8 91 93 CONEAT
soil classification) and different wood ages
mostly 10-15 year but also some very young
(89 year) and som old (18 year) has been
sampled and analysed
The result of the basic density measurement
showed a very big difference between the
samples The wood specie has a significant
influence on the wood density unlike soil or
ages
The raw material could easily be divided into
three groups low medium and high density
species
Low Egrandis
EdunniiMediumEglobulus
EmaideniiHigh
Ebicostata
The variation in basic density between
samples of the same specie was also quite
high The mapping study shows that
differences of about 100 kgm3 could be
found between stands This could be seen as
an opportunity for future breeding work but
could also cause problem for the future mill if
the raw material is not recorded controlled
and handled properly in the process
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 213
Chi Pre aration and Chi Pro erties
Contents
1 Introduction 3 2 Materials and methods 3
21 Raw material 3
22 Chipping 4
23 Drying 5
3 Results 7
31 Basic density of chips 7
32 Chip size and chip size distribution 8
4 Discussion 9
5 Conclusion 9
6 Recommendations 10
7 Appendices 11
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 313
Chi Pre aration and Chi Pro erties
1 Introduction
The aim with this report is to describe the chip preparation (chipping and drying)method used for the Montes del Plata pulp mill project and the chip properties analysed
for the different samples included in the Frame Setting study and the first part of the
Raw Material Mapping study
2 Materials and methods
21 Raw material
The origin of the wood samples and how the selection was done is described elsewhere
report ldquoWood and Soil Samplingrdquo For the wood mapping study 35 combinations of
wood specie soil and tree age were prioritized for sampling Each sample in the wood
mapping study consisted of wood material from 6 trees with the same DBH as theaverage DBH for trees in the nearby inventory plot
For the frame setting study additional 27 samples of different wood species soil and age
combinations were sampled to create mixes representative for the raw material supply
during different periods Dependent on the amount of chips needed 3 or 6 trees with the
same DBH as the average DBH for trees in the nearby inventory plot were harvested
All trees were cut into 3 equal parts to represent the whole tree volume From each part
a 1-m log was cut from the middle For details in sampling procedure see report ldquoWood
and Soil Samplingrdquo After debarking the 1-m logs was immediately sent to LATU for
chipping Figure 1 and 2 Each sample that arrived was supplemented with a LATU ID
Figure 1 First 10 samples arrived to LATU on 15032010
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 413
Chi Pre aration and Chi Pro erties
Figure 2 The logs were clearly marked with Montes del Plata IDs
22 Chipping
The logs were sawn longitudinal before chipping Figure 3
Figure 3 Sawing and chipping
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 513
Chi Pre aration and Chi Pro erties
The material from different heights in the sample was mixed before fed to the chipper
After chipping the chips was mixed thoroughly before drying Figure 4
Figure 4 Blending the chips within each sample
23 Drying
The chips were dried in opened trays in a big oven Figure 5 The drying temperature
was about 50 ordmC The drying conditions were controlled by the computerized oven
system The temperature was monitored in different points during drying The chips
were dried to a dryness of 90-95 before packed and transported to Imatra Finland
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 913
Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1113
Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1213
Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Contents
1 Introduction 3 2 Materials and methods 3
21 Raw material 3
22 Chipping 4
23 Drying 5
3 Results 7
31 Basic density of chips 7
32 Chip size and chip size distribution 8
4 Discussion 9
5 Conclusion 9
6 Recommendations 10
7 Appendices 11
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 313
Chi Pre aration and Chi Pro erties
1 Introduction
The aim with this report is to describe the chip preparation (chipping and drying)method used for the Montes del Plata pulp mill project and the chip properties analysed
for the different samples included in the Frame Setting study and the first part of the
Raw Material Mapping study
2 Materials and methods
21 Raw material
The origin of the wood samples and how the selection was done is described elsewhere
report ldquoWood and Soil Samplingrdquo For the wood mapping study 35 combinations of
wood specie soil and tree age were prioritized for sampling Each sample in the wood
mapping study consisted of wood material from 6 trees with the same DBH as theaverage DBH for trees in the nearby inventory plot
For the frame setting study additional 27 samples of different wood species soil and age
combinations were sampled to create mixes representative for the raw material supply
during different periods Dependent on the amount of chips needed 3 or 6 trees with the
same DBH as the average DBH for trees in the nearby inventory plot were harvested
All trees were cut into 3 equal parts to represent the whole tree volume From each part
a 1-m log was cut from the middle For details in sampling procedure see report ldquoWood
and Soil Samplingrdquo After debarking the 1-m logs was immediately sent to LATU for
chipping Figure 1 and 2 Each sample that arrived was supplemented with a LATU ID
Figure 1 First 10 samples arrived to LATU on 15032010
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 413
Chi Pre aration and Chi Pro erties
Figure 2 The logs were clearly marked with Montes del Plata IDs
22 Chipping
The logs were sawn longitudinal before chipping Figure 3
Figure 3 Sawing and chipping
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 513
Chi Pre aration and Chi Pro erties
The material from different heights in the sample was mixed before fed to the chipper
After chipping the chips was mixed thoroughly before drying Figure 4
Figure 4 Blending the chips within each sample
23 Drying
The chips were dried in opened trays in a big oven Figure 5 The drying temperature
was about 50 ordmC The drying conditions were controlled by the computerized oven
system The temperature was monitored in different points during drying The chips
were dried to a dryness of 90-95 before packed and transported to Imatra Finland
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 913
Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1113
Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 313
Chi Pre aration and Chi Pro erties
1 Introduction
The aim with this report is to describe the chip preparation (chipping and drying)method used for the Montes del Plata pulp mill project and the chip properties analysed
for the different samples included in the Frame Setting study and the first part of the
Raw Material Mapping study
2 Materials and methods
21 Raw material
The origin of the wood samples and how the selection was done is described elsewhere
report ldquoWood and Soil Samplingrdquo For the wood mapping study 35 combinations of
wood specie soil and tree age were prioritized for sampling Each sample in the wood
mapping study consisted of wood material from 6 trees with the same DBH as theaverage DBH for trees in the nearby inventory plot
For the frame setting study additional 27 samples of different wood species soil and age
combinations were sampled to create mixes representative for the raw material supply
during different periods Dependent on the amount of chips needed 3 or 6 trees with the
same DBH as the average DBH for trees in the nearby inventory plot were harvested
All trees were cut into 3 equal parts to represent the whole tree volume From each part
a 1-m log was cut from the middle For details in sampling procedure see report ldquoWood
and Soil Samplingrdquo After debarking the 1-m logs was immediately sent to LATU for
chipping Figure 1 and 2 Each sample that arrived was supplemented with a LATU ID
Figure 1 First 10 samples arrived to LATU on 15032010
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 413
Chi Pre aration and Chi Pro erties
Figure 2 The logs were clearly marked with Montes del Plata IDs
22 Chipping
The logs were sawn longitudinal before chipping Figure 3
Figure 3 Sawing and chipping
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 513
Chi Pre aration and Chi Pro erties
The material from different heights in the sample was mixed before fed to the chipper
After chipping the chips was mixed thoroughly before drying Figure 4
Figure 4 Blending the chips within each sample
23 Drying
The chips were dried in opened trays in a big oven Figure 5 The drying temperature
was about 50 ordmC The drying conditions were controlled by the computerized oven
system The temperature was monitored in different points during drying The chips
were dried to a dryness of 90-95 before packed and transported to Imatra Finland
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 413
Chi Pre aration and Chi Pro erties
Figure 2 The logs were clearly marked with Montes del Plata IDs
22 Chipping
The logs were sawn longitudinal before chipping Figure 3
Figure 3 Sawing and chipping
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 513
Chi Pre aration and Chi Pro erties
The material from different heights in the sample was mixed before fed to the chipper
After chipping the chips was mixed thoroughly before drying Figure 4
Figure 4 Blending the chips within each sample
23 Drying
The chips were dried in opened trays in a big oven Figure 5 The drying temperature
was about 50 ordmC The drying conditions were controlled by the computerized oven
system The temperature was monitored in different points during drying The chips
were dried to a dryness of 90-95 before packed and transported to Imatra Finland
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 913
Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1113
Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1213
Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 513
Chi Pre aration and Chi Pro erties
The material from different heights in the sample was mixed before fed to the chipper
After chipping the chips was mixed thoroughly before drying Figure 4
Figure 4 Blending the chips within each sample
23 Drying
The chips were dried in opened trays in a big oven Figure 5 The drying temperature
was about 50 ordmC The drying conditions were controlled by the computerized oven
system The temperature was monitored in different points during drying The chips
were dried to a dryness of 90-95 before packed and transported to Imatra Finland
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 913
Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1113
Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1213
Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 613
Chi Pre aration and Chi Pro erties
Figure 5 Drying process and equipment in LATU
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 713
Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 813
Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
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Chi Pre aration and Chi Pro erties
3 Results
31 Basic density of chips
The basic density of the trees in the wood mapping part of the study was measured both
on one wood disc from each harvested tree and on the chips from the 3 1-m logs The
figures from the discs were analyzed with multivariate methods (software SIMCA) for
the influence of wood specie age and soil type The result showed that the wood specie
was the only parameter that had a significant influence on the basic density No
correlation with age or soil type was found report rdquoRaw Material Mapping in Uruguay
for Montes del Plata - Wood and Bark Analysisrdquo
For the frame setting part of the study the basic density was solely measured on the
chips The measurement was done according to standard method (SCAN-CM 43-95)
The average basic density per specie is found in Table 1 The values for each individual
stand are found in Appendix Table 1-3
Table 1 Average density for the species
Age Basic density kgm3Wood Specie
average average stdev min max
Eucalyptus grandis 14 438 2973 395 507
Eucalyptus dunnii 12 551 3200 506 597
Eucalyptus globulus 11 569 2778 533 623
Eucalyptus maidenii 13 623 2224 581 667
Eucalyptus bicostata 12 596 1643 573 613
The density variation within and between species could also be illustrated in a
frequency-distribution diagram Figure 6 It is obvious that Egrandis and Emaidenii
are separated from the other species with only a minor overlap The amount of samples
of Edunni and Ebicostata were limited making the normal distribution not apparent
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Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
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Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1013
Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1113
Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Basic density distribution between species
0
1
2
3
4
5
6
7
8
9
10
375-
399
400-
424
425-
449
450-
474
475-
499
500-
524
525-
549
550-
574
575-
599
600-
624
625-
649
650-
674
n u m b e r o f s a m p l e s
Ebicostata
Edunnii
E globulus
E grandis
E maidenii
Figure 6 Distribution of basic density for different species
32 Chip size and chip size distribution
The size of the chips from the chipper in LATU is about 3 cm in length and less than 3mm thickness Figure 7
Figure 7 Typical chips from the LATU chipper
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Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
The chips size distribution was measured for two samples giving an idea of the size
distribution from the laboratory chipper Both samples gave a total accept fraction of
88-89 (fraction 3+4) Table 2
Table 2 Result from chips classification of two different samples SCAN-CM 4088
SIZE DISTRIBUTION WILEN
SCREEN
LATU 16 61-13-12-
91 Euca globulus
LATU 19 111-9063-
12-91 Euca maidenii
Fraction 1 hole 45 mm oversize 000 000
Fraction 2 slot 8 mm overthick 604 671
Fraction 3 hole 13 mm large accept 6898 6551
Fraction 4 hole 7 mm small accept 2036 2264
Fraction 5 hole 3 mm pin 424 471Fraction 6 fines 038 043
Total 10000 10000
4 DiscussionThe basic density for different samples of the same specie varies quite much showing
the existing non homogeneity in the raw material A rough estimate is that the density
today could vary ~100 kgm3 between different stands of the same specie This could be
seen as an opportunity for future breeding work but could also cause problem for the
future mill if the raw material is not recorded controlled and handled properly
The five types of eucalyptus investigated could easily be divided into three groups in
respect of the basic density
bull Low density Egrandis
bull Medium density E dunnii and Eglobulus
bull High density Emaidenii and Ebicostata
The proportion of low medium and high density chips that will be processed will
impact on the average chip mix density
5 ConclusionToday the raw material available for the Montes del Plata pulp mill have a big variation
in basic density The analysis of data shows that the wood specie had a significant
influence on the basic density and that the five investigated types of eucalyptus could be
divided into three groups low medium and high density species
The variation for different samples of the same specie varies also quite much The
mapping study shows that differences of about 100 kgm3 could be found between
stands
The density variation both between and within species makes it very important to
control the chip flow to the digesters and to have developed systems for steering andcontrolling the raw material
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
6 Recommendations
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
7 Appendices
Table 1 Chip basic density and raw material data from stands at soil type 91 93 and 8
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
114-9352-13-91 17 3115 2638 2032 580 13 E dunnii111-9063-12-91 19 2014 1619 1708 645 12 E maidenii
116-113-12-91 18 2083 1627 1943 581 12 E bicostata
61-13-12-91 16 1968 1592 1832 534 12 E globulus Otros115-9033-18-91 24 2226 1740 1845 451 18 E grandis115-12-15-91 21 2281 1843 1872 431 15 E grandis
115-5008-16-91 22 2524 2089 1768 470 16 E grandis
111-9110-16-91 23 2179 1834 2498 633 16 E maidenii
111-9850-12-91 20 2260 1859 1823 602 12 E maidenii61-9145-12-91 15 2346 1872 2041 593 12 E globulus Otros
114-24-9-91 35 2778 2307 2030 537 9 E dunnii
115-9055-10-91 48 1971 1499 1637 428 10 E grandis
114-48-11-91 47 2844 2022 1773 597 11 E dunnii
114-9108-14-91 53 2879 2423 2397 568 14 E dunnii
61-9156-13-91 52 2125 1693 1890 594 13 E g lobulus Jeeralang
61-9102-10-91 46 2217 1843 2000 563 10 E globulus Jeeralang
111-9131-10-91 50 1673 1337 1627 609 10 E maideni i
116-9137-10-91 49 2110 1713 1933 573 10 E bicostata116-9322-14-91 54 2113 1713 2030 605 14 E bicostata
111-9118-15-91 55 2600 2177 2000 667 15 E maidenii
115-114-12-91 51 2060 1647 2007 461 12 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
116-9345-14-93 31 1980 1608 1780 595 14 E bicostata111-9427-12-93 29 1965 1571 1760 626 12 E maideni i
61-9141-10-93 25 2057 1652 1947 571 10 E globulus Otros111-9207-15-93 33 2382 2005 1925 620 15 E maideni i
61-68-10-93 26 2063 1680 1933 555 10 E globulus Jeeralang114-9344-13-93 28 2943 2473 2033 537 13 E dunnii
115-9035-10-93 27 2558 2179 2385 452 10 E grandis
115-9088-17-93 32 2472 2102 2100 466 16 E grandis111-9134-12-93 30 1867 1459 1840 597 12 E maideni i
111-13-18-92 34 2580 2175 2113 629 18 E maidenii
115-9150-12-93 60 2260 1863 2183 434 12 E grandis
61-33-12-93 58 2130 1630 1723 623 12 E globulus Jeeralang114-84-14-93 63 2705 2236 1927 529 14 E dunnii
61-52-13-93 62 2218 1592 1998 598 13 E globulus Jeeralang
116-9177-10-93 56 1734 1188 1547 613 10 E bicostata
116-55-12-93 61 2098 1659 1687 611 12 E bicostata111-9117-10-93 57 2264 1866 1890 633 10 E maidenii111-13-14-93 64 2451 2017 1860 639 14 E maidenii
115-24-18-93 65 2752 2364 2283 507 18 E grandis
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
111-22-15-815 45A 2308 1973 2300 634 15 E maidenii111-30-15-815 45B 2377 1940 2095 636 15 E maidenii
115-29-16-815 14 2418 2038 2305 435 16 E grandis
115-27-16-815 13 2188 1813 2022 399 16 E grandis
115-18-12-87 8 1952 1598 1792 417 12 E grandis
115-21-12-87 9 2020 1582 1750 395 12 E grandis
61-13-15-815 12 2418 2048 2574 585 15 E globulus Otros114-0-12-88 7 2445 2022 2142 506 11 E dunnii
115-9007-11-802a 42 2310 1833 2200 433 11 E grandis
115-9068-15-815 44 2197 1767 2120 433 15 E grandis
111-0-13-815 10 2000 1668 2123 590 13 E maidenii
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Wood Mapping and Frame Setting
983123983137983149983152983148983145983150983143 983140983137983156983137
Average
Sample ID
Sample ID
Soil 91
Soil 93
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 8 Average
7252019 Chip Preparation and Chip Properties_no Recomendations
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Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1213
Chi Pre aration and Chi Pro erties
Table 2 Chip basic density and raw material data from stands at soil type 2
983123983137983149983152983148983141 983107983151983140983141 983117983108983120 983116 983137983156983157 983113983108 983112983141983145983156983144 983156983151983156 983086 983149 983112983141983145983156983144 983139983151983149 983086 983149 983108983106983112 983139983149 983107 983144983145983152 983106 9830869831089830869830809831479831439830879831493) 983105983143983141 983123983152983141983139983145983141 983119983154983145983143983141983150
115-20-15-211 6 1717 1363 1647 396 15 E grandis
111-73-10-212 5 2336 1826 1888 581 10 E maidenii61-136-10-212 3 2447 2008 1855 569 10 E globulus Otros
61-1-10-212 2 1769 1311 1517 546 10 E globulus Otros
61-9306-8-212 1 1958 1485 1608 537 8 E globulus Otros
61-176-10-212 4 1925 1454 1617 554 10 E globulus Otros
61-T-14-210 40 2170 1740 2027 553 14 E globulus Otros
61-0-13-211b 36 2203 1820 2143 553 13 E globulus Otros
111-T247-13-212 39 2257 1763 1823 629 13 E maideni i
Age
Wood specie Average Stdev Min Max average
Eucalyptus grandis 438 2973 395 507 14Eucalyptus dunnii 551 3200 506 597 12
Eucalyptus globulus 569 2778 533 623 11
Eucalyptus maidenii 623 2224 581 667 13Eucalyptus bicostata 596 1643 573 613 12
Basic density chips
Sample ID 983123983137983149983152983148983145983150983143 983140983137983156983137
Soil 2 Average
Wood Mapping and Frame Setting
7252019 Chip Preparation and Chip Properties_no Recomendations
httpslidepdfcomreaderfullchip-preparation-and-chip-propertiesno-recomendations 1313
Chi Pre aration and Chi Pro erties
Distribution
ArchivingLibrary Karlstad Research Centre