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Project:-1-Material balance of paper machine 2-study of steam and condensate system

JK Paper Ltd.Unit:-CPM

Fort Songadh Dist.Tapi(GUJRAT)

Submitted by Mr.Ritesh KumarB.Tech(PULP AND PAPER TECHNOLOGY) IIT ROORKEE7/1/2015

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ACKNOWLEDGEMENT

The experience of In-plant training at JK PAPER LIMITED Unit:Central Pulp Mills has

developed my knowledge as in technical operation for which I thank the management of

the mill and technical department of the mill.

I would like to express my intense feeling and gratitude toward Mr.H.K sharma (GM-HR),

Mr.Mahesh Bhat (Sr.GM-PRODUCTION),

Mr.Mohit Tyagi(C.M-PAPER MACHINE PROCESS). For his co-operation during my training period.The credits also goes to HODs

shift In-charge who have helped and co-operated with me during my training period.

I express my deep sense of gratitude to Dr.Vivek Kumar for arranging my training.

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Flow chart of stock to pope reel

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Notations and Formula use during calculation

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CY and Flow rate are known to us for Material balance of PM-2

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Shrinkage loss and Fluffing loss during calculation consider should be zero.

Material balance of stock to pope reel Of PM-2 Calculation based on GSM - 70 Quality- Maplitho grade paper

Through put-4.5(t/hr) Deckle -3.15m

Chemical charge

ASA-1.1Kg/t

OWA-3Kg/t

TALCUM -20Kg/t

SIZEING CHEMICAL-20Kg/t

A-STARCH-3.5Kg/t

FIXING AGENT-0.16Kg/t

DYE-0.3Kg/t

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Whole material balance calculation based on J.k CPM data.

This calculation change accoroding to different –different data .

All part balance show in this calculation.

And all cy and some of the flowrate and Efficiency of cleaner and screen

And loss all are mention in its desire part

This material balnce change accoroding to different –different data

Which I mention above .

Whole material balnce done by my best knowledge and guidence of my

mentor

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POST DRYER

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11

PRE DRYER+ SIZE PRESS

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SIZEPRESS

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PRE DRYER

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PRESS

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3rd PRESS

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COMBIPRESS

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WIRE PART

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COUCHROLL

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SUCTIONBOXES

SILO

FOR DILUTION OF FAN

PUMPAND CENTRI

CLEANER

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VACCUMEFOILS

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Column1 Column2 Column3SLICE OPENING=F17*SPEED OF WIRE/1000

3.80221142m

SPEED OF WIRE 330m/min

F1718820.94

66lpmSLICE WIDTH 0.015m

HEADBOX

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PRESSURE SCREEN

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PRESSURESCREEN

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PRIMARY CENTRI CLEANER

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R1 Column2 Column3

S26=S27-S25 0.98819164t/hr

W26=W27-W25 112.947947t/hr

C26=S26/(S26+W26) 0.00867321

F26 1898.93565lpm

1st centri cleaner

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SECONDARY CLEANERS

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2ND centri cleaner

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3 CLEANER

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3RD centri cleaner

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FAN PUMP

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FANPUMP

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SR BOX

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SRBOX

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M/C CHEST

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M/CCHEST

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HIGH SPEED MIXER

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RAW PULPCHEST

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THICKNER

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COUCHPIT

THICKNER

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VIBRATING SCREEN

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SILO

RECOVERD FIBER TANK

SUPER CLEAR WATER TANK

CLOUDY WATER TANK

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Conclusion

Graphical reprenstation of material balance.

Graphical reprenstation of Cy variation.Graphical reprenstation of Flow rate.

Graphical reprenstation of wire part solid

43FORMI...

FOIL-

1

FOIL-

2

FOIL-

3

FOIL-

4

FOIL-

5

FOIL-

6

FOIL-

7

FOIL-

8

FOIL-

9

FOIL-

10

FOIL-

11

FOIL-

12

FOIL-

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COUCH...115.00

120.00

125.00

130.00

135.00

140.00

145.00

150.00

155.00

151.

15

144.

45

141.

56

137.

26

135.

52

134.

80

133.

45

133.

14

132.

35

131.

38

130.

65

130.

53

128.

68

128.

30

127.

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TREND OF SOLID

Solid

in K

g/m

inWIRE PART SOLID

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0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

3.53

3.96

4.77

5.30

4.79

7.60

6.61

6.07

5.65

4.57

4.45

4.23

4.23 4.32

4.32

Solid

in t/

hrTREND OF SOLID

SOLID=(FIBER+FILLER)

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PULP MILL

RAW PULP CHEST

HIGH SPEED

MIXER

M/C CHEST

SR BOX

FAN PUMP

1 ST CEN

TRI C

LEANER

PRESSURE S

CREEN

HEAD BOX

VACCUME FOILS

SUCTIO

N BOXES

COUCH ROLL

COMBI PRESS

3 RD PRESS

PRE DRYER

SIZE P

RESS

POST DRYER

0.00

20.00

40.00

60.00

80.00

100.00

120.00

4.00

3.90

3.84

3.80

3.50

0.53

0.51

0.50

0.50 2.00

15.0

0

20.0

0

36.0

0

41.0

0

94.0

0

67.0

0

96.0

0

Cy o

r dry

ness

in %

TREAND OF Cy

Cy or Dryness

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1290

.91

1508

.63

2073

.18

2326

.41

2279

.06

2372

4.95

2182

6.01

2023

7.58

1882

0.95

352.

80

172.

10

75.0

6

107.

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(Flo

w ra

te /

100)

in lp

m

TREND OF FLOW RATE

FLOW RATE

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STEAM AND CONDENSATE SYSTEM OF PM-2

INTRODUCTION

Paper dryer or cylinder are the most popular method of drying a sheet of paper. In the

drying process steam is introduced inside the paper dryer at varying pressures depending on the

type of paper being manufactured.Steam condenses inside the drying cylinder and gives up its

latent heat.The condensate layer,non-condensibles,scales inside dryer shell,dryer surface

contamination,dryer shell,air film,paper and water vapour all offer resistance to heat

transfer.Improvement in dryin will be possible by quickly removing the condensate,keeping it in an

agitated state ,removing non condensables , evacuating dryer pocket humidity,keeping proper felt

tension.

In practice a typical sheet with 55-65% moisture enters the dryer and leaves with a

moisture content of 3-7%.Taking an average inlet and outlet moisture content of 65% and 5%.7.769

t/hr water has to be removed for production of 4.5t/hr .Thus sufficient heat is to be supplied to

evaporate this water together with supply of sufficient air to carry away the water vapour produced.

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In this cascade system all dryer(pre and post) divide in 6 part

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STEAM AND CONDENSATE SYSTEAM OF PM-2

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THANKYOU