china's coal dense medium cyclone
TRANSCRIPT
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China's Coal Dense Medium Cyclone
Serial No.:ICMO2013.1.1
I N D U S T R I A L C H A N N E L
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I N D U S T R I A L C H A N N E L
1966 the Branch successfully developed two products
dense-medium cyclone with a diameter of 500mm and built
the separation system of dense-medium cyclone in Liaoning
Caitun. Subsequently, the Branch successfully developed
two products dense-medium cyclone with 600mm and
700mm.
1977 the Branch started to develop three-product
dense-medium cyclones, non-magnetic medium
dense-medium cyclone and fine medium dense-medium
cyclone.
1981 the Branch successfully developed 3NZX500/350
pressure feeding three products dense-medium cyclone, and
passed the national identification as achievements in
scientific research during the "Eighth Five-Year Plan" period.
1989, the Branch began to study the three-productdense-medium cyclone that utilized the gravity feeding mode,
and in 1992 successfully developed 3NWX700/500 gravity
feeding three-products dense medium cyclone, industrialize
this technology, in the same year past the national technical
evaluation and won the patent, and then extended the
technology gradually.
1999 Coal Preparation Branch successfully developed the
three products dense-medium cyclone (type 3NWX1200A
type) of Chinas first large gravity feeding, which was
successfully utilized in Laowuji Coal Preparation Plant inPanjiang, Guizhou.
2000- Now In order to improve the separation sharpness
and economy of the dense-medium cyclone coal preparation
and make advanced and efficient dense-medium cyclone
coal preparation technology more widely extended, the
Ministry of Science and Technology issued a research topic
of key technology research on new process of the
dense-medium cyclone coal preparation during the Tenth
Five Year Plan, in December 2004, successful was the
commissioning of the technical renovation project of Shanxi
Jinyang Coal Separation Plant that used the new process of
coal preparation researched during the Tenth Five Year
Plan, cooperated with the new process, Coal Preparation
Branch successfully developed the gravity feeding three
products dense-medium cyclone (invention patent No.:
02158903.8), laid the foundation for the development of
China's dense-medium coal preparation technology and the
simplification of the coal preparation process as well as the
bigness of the coal preparation plant, and made important
contributions to the rise of the technical level of Chinas coal
preparation.
1958 China Coal Research Institute Coal Preparation
Branch start the research of dense medium coal separation
process with the magnetite powder as coal separationmedium.
Coal Preparation Branch of China Coal Research Institute,
established in 1956, is the only science and technologyinstitute in China engaged in research in coal preparation. So
far, more than 80% of the process and equipment technology
used by Chinas coal preparation plants is originally from
Coal Preparation Branch, especially, the dense medium coal
preparation technology and equipment is result of long term
effort and innovation. The three product cyclone invented by
Coal Preparation Branch has a 95% market share in Chinas
coking coal preparation plants.
FavorSea Industrial Channel Limited is appointed marketing
agent of Coal Preparation Branch of CCRI. FavorSea is
uniquely positioned to serve as a strategic global marketing
partner to China coal industry's leading innovators. The
product and service include three/two product dense medium
cyclone, CCRI pump, KDZG belt conveyor system, super
sizing crusher, coal pipeline transportation system, coal
preparation plant and coal mine designing and EPC
contracting etc.
Research History of Chinas Coal
Dense Medium Separation
Technology
1
About Us
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FavorSea Industrial Channel Limited
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After problems, such as complicated process, high power
consumption and etc. are solved, large diameter dense-
medium cyclone, especially three-products dense-medium
cyclone is high in separation efficiency, and can be used to
simplify the coal preparation process and reduce the
equipment number and land occupied of the coal preparation
plant, greatly lower the production cost and therefore it
capture the market gradually in China.
The continuous development of the large-diameter
dense-medium cyclone has a far-reaching significance for
the development of coal preparation technology, especially
for the development and promotion of the dense medium coal
preparation technology.
High-level optimized
design and high-precision
processing technologies
ensure the products quality
Simple structure, smalloccupied space for overall
unit
Large capacity, high
separation sharpness
The lining adopts the
highly wear resistant
composite ceramic
materials developed by
ourselves, and is featured
by high strength and high wear resistance, which ensures theservice life of the cyclone
Wear resistance measures have been taken for all
wearing positions and wearing parts
The advanced and reliable intelligent control system is
available. The coal preparation process monitoring system,
which is featured by advanced technology, strong function,
outstanding control performance and high reliability, may be
provided based on the needs at the site. In addition, the
digitized control and display of the equipment parameters are
possible based on the needs of customers
1990s was the era of the rapid development of Chinas
dense-medium coal preparation technology and the wash
volume, in which the fastest development is the coal
preparation technology of the dense-medium cyclone, the
development momentum of Chinas dense-medium coal
separation first came from the state environmental protection
policy and the sustainable development strategy of the
national economy, the Chinese government from the actual
situation, clearly took coal as basic energy, strived to
enhance the proportion of high quality coal, increased
development efforts of the clean coal, encouraged andsupported the development of the coal preparation and
promoted the adoption of dense-medium coal preparation
methods of high efficiency.
In late 1990s, in the promotion of policies and market,
Chinas research and design units made a lot of research
work in equipment, technological process, plant structure and
etc., and China Coal Research Institute Coal Preparation
Branch, as China's leading enterprises in the field of coal
preparation, obtained a number of achievements in scientific
research, led the progress of Chinas coal preparationtechnology, particularly, did a lot of work in the largeness of
the dense-medium cyclone, so that the plant investment and
operating costs were greatly reduced, and also production
management and separation efficiency were significantly
improved, and provided a good foundation for the massive
industrialized promotion of the coal preparation technology of
Chinas dense-medium cyclone.
Features of Dense Medium
Cyclone From CCRI
The Rapid Development of The
Dense Medium Cyclone in China
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The multi-medium series of gravity feeding three products
dense medium cyclone is the new generation of high-endtechnical product developed by Tangshan Branch by
targeting at the problems during the large-scale development
of cyclones and through the countless experiments by the
research workers (invention patent No.: 02158903.8). This
product is the key equipment used for separation of 0-100mm
size fraction raw coals. It has such advantages as low energy
consumption, long service life, convenient adjustment, low
degradation rate of coal and easy model selection of
supporting equipment. The supporting processes have such
advantages as less initial investment, small occupied space,
simple technological process and low costs.
All key technical parameters are analyzed and designed
using the international advanced computational fluid
mechanics technologies;
High separation sharpness, which effectively ensures the
recovery of refined coal;
Few wearing parts, low equipment maintenance costs;
Large capacity and high top size, which meets the
large-scale and modularization requirements of coal
preparation plants;
Low energy consumption and low medium-feedingpressure, which reduces the overall wearing and prolongs the
service life of the equipment;
Easy adjustment, easy model selection for support
equipment
All standard parts adopt the top brand products in China to
ensure the good reliability and mechanical performance of
the equipment.
In the product design, such advanced analysis and design
software as Fluent, Pro/E and Solidworks are fully used for
optimal design
Design and manufacture customized equipments for
customers based on the special requirements, on-site spatial
environment or factory structure restrictions. The
selection is comprehensively considered the site application
in different use, such as the coal preparation system has
jigging pressure ,pressure feeding dense-medium, gravity
feeding dense-medium and so on; Different coal preparation,
such as the characteristics of coal, size consist and the
different requirements of the products. Our products consistof tens of models and products of hundreds of specifications.
Therefore, we have no restriction when recommending our
products, and can objectively recommend or design products
with proper technologies and values for customers by fully
considering the design capacity of the coal preparation plant,
coal quality and requirements on products. We recommend
the models based on the basic theory and our experience in
the actual application of thousands of products.
Technical Parameter of Main
Products
1.Multi-Medium Gravity Feeding Three
Products Dense Medium Cyclone.
Technical Features
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Feed the qualified dense medium suspension of single
density into the cyclone under the proper pressure. The raw
coal is fed into the cyclone by relying on gravity to separate
clean coal, middling and refuse successively, which has
simplified the process and reduced investment.
The separation density of the secondary cyclone may be
steplessly regulated online in a convenient and flexible way,
which guarantees the quality of the clean coal and middling;
Raw coals enter the cyclone by relying on gravity, which
reduces over crushing of materials;
High top size, large capacity, strong refuse discharge
capability, strong adaptability;
Good wear resistance, composite ceramic materials for
lining, long service life;
Special cyclones may be designed according to
customers' needs.
.
2.Gravity Feeding Three Products
Dense Medium Cyclone
Technical Parameter
Technical Features
Note: The above are the conventional models. We may design the proper
TypeFeeding Size
mm
the least working
pressure
MPa
Capacity
t/h
1500/1100 110 0.22 550-750
1400/1050 105 0.21 450-600
1350/950 100 0.19 400-550
1300/920 100 0.18 350-450
1200/850 90 0.15 300-420
1100/780 80 0.12 250-350
1. Center overflowing tube of primary cyclone
2. Medium inlet
3. Feeding vortex finder of primary cyclone
4. Middle part of primary cyclone
5. Discharging vortex finder of primary cyclone
6. Feeding partition board
7. Feeding elbow
8. Collecting tube of secondary cyclone
9.Adjusting device
10. Overflow cap of secondary cyclone
11. Center overflow cyclone of secondary tube
12. Vortex finder of secondary cyclone
13. Part one of cone
14. Part two of cone
15. Spigot
Technical Parameter
Parameter
Specification
Feeding Size
mm
Medium feeding
pressure
MPa
Capacity
t/h
1400/1050 100 0.30~0.40 400~550
1300/920 90 0.28~0.36 300~450
1200/850 85 0.18~0.28 280~400
1100/780 75 0.16~0.25 230~330
1000/700 70 0.15~0.22 180~280
900/650 65 0.14~0.19 130~220
800/570 55 0.12~0.16 90~140
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Fully mix the raw coal with the qualified dense medium
suspension of single density, feed it into the cyclone underthe proper pressure, and separate clean coal, middling and
refuse successively, which has simplified the process.
High separation sharpness and wide applicability, suitable
for separation of easy-to-wash, middle-difficult-to-wash,
difficult-to-wash and extremely-difficult-to-wash coal;Good wear resistance, composite ceramic materials for
lining, long service life;
Special cyclones may be designed according to
customers' needs.
3NZXseries pressure feeding three products dense-medium
cyclone
.
3.Pressure Feeding Three Products
Dense-Medium Cyclone
Technical Parameter
Technical Features
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1. Overflow cap of primary cyclone
2. Central overflow tube of primary cyclone
3. Feeding
4. Feeding vortex finder of primary cyclone
5. Middle part of primary cyclone
6. Bottom of primary cyclone
7. Overflow cap of secondary cyclone
8. Central overflow tube of secondary cyclone
9. Vortex finder of secondary cyclone
10. Part one of cone 11. Part two of cone 12. Spigot
Parameter
SpecificationFeeding Size
mm
Medium feeding
pressure
MPa
Capacity
t/h
1400/1000 100 0.28~0.38 400~550
1300/920 90 0.26~0.34 300~450
1200/850 85 0.17~0.26 280~400
1100/780 80 0.15~0.24 230~330
1000/700 70 0.14~0.20 180~280
900/650 65 0.13~0.18 130~220
850/600 60 0.12~0.17 100~180
710/500 50 0.08~0.14 70~120
600/400 40 0.06~0.10 50~70
500/350
25 0.05~0.10 25~60
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High separation sharpness and high efficiency;
Low lower limit of separation;
Wide scope of application, suitable for separation of
easy-to-wash, middle-difficult-to-wash, difficult-to-wash, and
extremely-difficult-to-wash coal;Good wear resistance, composite ceramic materials for
lining, long service life;
Special cyclones may be designed according to
customers' needs.
High separation sharpness and high efficiency;
Low lower limit of separation;
Wide scope of application, suitable for separation of
easy-to-wash, middle-difficult-to-wash, difficult-to-wash, and
extremely-difficult-to-wash coal;
Good wear resistance, composite ceramic materials for
lining, long service life;
Special cyclones may be designed according to
customers' needs.
4.Pressure Feeding Two Products
Dense-Medium Cyclone
Technical Features
Technical Parameter
1. Discharging tube; 2. Discharging partition board; 3. Feeding
short connector; 4. Feeding elbow; 5. Part 1 of cone; 6. Part 2 of
cone; 7. Spigot
Excel 1 Technical parameter of Dense-medium cyclone
Excel 2 basic parameter of coal slime dense-medium cyclone
product
specification
basic parameter
installmentpoint
.
Feeding Sizemm
the leastworkingpressure
MPa
Capacityt/h
1500 1020 130 0.19 500700
1400 1020 120 0.18 450600
1300 1020 110 0.16 300500
1200 1020 100 0.15 250400
1100 1020 90 0.13 240350
1000 1020 80 0.12 160280
850 1020 60 0.10 130180
700 1020 50 0.08 90120
600 1020 40 0.07 5090
500 10
20
25 0.06 40
60
Note: The diameter of the cyclone tank may be designed and adjusted according to
customers' needs.
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5.Gravity Feeding Two Products Dense-Medium Cyclone
Technical Parameter
High separation efficiency, large capacity, strong adaptability to
different raw coal
Separated materials enter the cyclone by relying on gravity,
which reduces over crushing of materials;
Good wear resistance, composite ceramic materials for lining,
long service life;
Special cyclones may be designed according to customers'
needs.
Technical Features
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FavorSea Industrial Channel Limited
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Tel: +86 10 8817 7742 Fax: +86 10 8817 7443
1 center tube;
2 discharging vortex finder;
3 feeding medium short connector;
4 cylinder body;
5 feeding vortex finder;
6 feeding partition board;
7 feeding elbow;
8 buffer tank
No.Specification
mmNWZX1200 NWZX1000 NWZX800 NWZX750 NWZX650 NWZX500
1 Internal Diameter of
Cylinder
1200 1000 800 750650 500
2 Range of feeding
size
80 70 6560
50 25
3 working
pressure(Mpa)
0.17-0.26 0.15-0.20 0.12-0.170.08-0.14
0.07-0.12 0.060.10
4 cycle Capacity (m3/h)1100
1300
700900 450550380450
280350 180230
5 Capacity(t/h)250400 180300 90150 80120 70100 4060
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6. Thickening and Classifying Cyclone (Set)
7. Highly Wear Resistant Lining of Cyclone
Technical Parameter
Technical Parameter
The thickening and classifying cyclone set is the ideal
equipment for thickening and classifying the ore pulp, and iswidely used for the recovery of coarse slimes at coal
preparation plants and the thickening and classifying of the ore
pulp before floatation. It plays an important role in closing the
wash water and reducing environmental pollution.
.
The highly wear resistant cyclone lining is developed by
Tangshan Branch of Tiandi Science and Technology co., ltd
through its research and experience of many years, and
through its numerous experiments in terms of erosion and
abrasion mechanism, formulation, mixing, shaping and fritting
of the ceramic materials. This product has extremely high
performance in erosion and abrasion resistance. It meets the
special needs of cyclone and the product performance reached
the international advanced level..
Simple and practical structure, reliable operation, good
adaptability;Good effects of thickening and classification;
Modular design, simultaneous application in a number of
equipments.
Technical Features
Parameter
Specification
Feeding Size
mm
feeding
pressure
Mpa
Feeding Size
g/l
Capacity
m3/h
cyclone(series) 0-3 0.05-0.20 80-150
Design relevant products
according to needs
performance
index
Hardness/HV bending
strength/MPa
density/g/cm3
1800 280 3.69
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