1. BOILER
Mae Sod Clean Energy Co., Ltd.
IJT

2. B9
B7 B8
B6 Start
Normal state
B4
B3
BOILER
B5
B2
Belt size
B1 1000 mm.BW.x33.5 M.L. 11 kw
B2 1000 mm.BW.x14.7 M.L. 7.5 kw
B3 1000 mm.BW.x214 M.L. 30 kw
B1
B4 1000 mm.BW.x14.7 M.L. 7.5 kw
B5 1200 mm.BW.x43 M.L. 22 kw
B6 900 mm.BW.x38 M.L. 11 kw
B7 900 mm.Bw.x73 M.L. 15 kw
MILL B8 1500 mm.BW.x9 M.L. 5.5 kw
B9 900 mm.BW.x89 M.L. 11 kw

3. INTER LOCK
START Normal state
BELT CONVEYOR NO.
FORM RUNING NO. FORM RUNING NO.
B.1 OFF ▬ ON 9
B.2 ON 2 ON 2
B.3 ON 1 ON 1
B.4 ON 4 ON 4
B.5 ON 3 ON 3
B.6 ON 5 OFF ▬
B.7 ON 6 OFF ▬
B.8 ON 7 OFF ▬
B.9 ON 8 ON 8

5. Steam Boiler
Cap. : 95 TPH
Pres. : 60 Bar
Temp. : 500°C
DRUM F.W.P. : 160°C
Bag. feed : 4 set
Bag. Ext. : 13000kg/hr
FURNACE
STOKER
ก , , กF F IJT Boiler

6. Boiler F 2 F
F F F
F F F

7. Boiler F ก 4 F F
Air & Gas system
Water & Steam system
Fuel Handling system
Ash Handling system

8. 200 C
superheat
economizer
800 C 160 C

10. COMBUSTION AIR SYSTEM
ก F ก F ก Oxygen
Fก ก F F F ก 4 F
Oxygen ,
Fuel ,
Heat( F )
Chemical reaction( ก )
ก 4 F กF ก F F F F
F ก Fก

11. F F F
F ก F F ก F
กก F
Bagasse analysis
Hydrogen : 3.04 %
Carbon : 23.
23.24 %
Oxygen : 22.
22.08 %
Moisture : 50.
50.0 %
HHV : 2272Kcal / Kg
2272Kcal

12. ก
F F F
Turbulence ก ก F
Time ก F

13. ก F กก F F ก ก F
F Fก F F ก
ก F ก ก Fก
F 3 F ก F F
Carbon
Hydrogen
Sulphur

14. Carbon F ก F ก ก F FF
Sulphur ก กF F ก Fก ก F F F
sulphur F ก
Oxygen F F FกF F F
Nitrogen ก F F F ก F ก F
ก Fก F F
Ash F F Fก ก
- F ก F F F
- F ก ก ก ก F (Corrosion)
-ก กก F (Erosion) Fก ก ก
- ก F F ก Ash

17. F F ก กF
WaterWalls

18. F F F ก
Boiler water Quality Recommendation At Increasing Pressure ( All value,except ; given in ppm ) in Sugar Industry
Intermediate
Low to 250 psi 250 -300 psi 300 - 450 psi
IJT 60kg/cm2 0 - 15 kg/cm2 15 - 20 kg/cm2 2 0 - 30 kg/cm2
Total hardness, as Ca CO3 Nil 0 0 0
Total Alkalinty, as Ca CO3 700 700 700
Hydroxide, as Ca CO3 150 - 300 150 - 300 130
Silica, as SiO2 2.5 100 - 133 50 - 67 50 - 67
Dissolved Oxygen 0.015 0.015 0.015
Total Dissolved Solid 100 < 2,500 < 2,000 < 1,500
Suspended Solid < 600 < 300 < 200
Conductivity, micro - mho / cm 200 < 3,500 < 2,850 < 2,150
PH 9.5-10.5 11 - 11.8 11 - 11.5 10.5 - 11.5
Oil 1.0 1.0 1.0
Sodium Sulphite ; as Na2 SO3 30 - 60 30 - 40 20 - 30
Phosphate ; as PO43- 20 20 - 40 20 - 40 5. - 15
Hydrazine ; as N2 H4 0.1 - 0.3 0.1 - 0.4 0.1 - 0.5
ก ก F
2531 5 ก
ก F

19. RAW WATER
FILTERING
FILTERED WATER
SOFTENING RO
DEMINERALIZATION
MAKE - UP WATER
THERMAL
DEAERATION

20. THERMAL CONDENSATE
DEAERATION POLISHING
FEED
WATER
ADDITTIVE
INJECTION
CONDENSATE
160°C BOILER
WATER STEAM
BLOW - DOWN
IJT

21. Water Flow Path
ก (Circulation) boiler F 2 ก
ก ก ก supply F ก
Fก
ก F F boiler furnace ก
ก waterwalls F ก ก ก
F ก overheat ก

22. F F กก F กF Fก steam
F F ก F F carbon steel F
482 °c steam/water mixture F F
260 °c superheater steam F 500 °c
gas ก F >1,000 °c superheater F 600 °c
steam flow F F ก F Fก (Limit) F

23. ก Start-up F Steam Flow กก vent drain
superheat F ก F F superheat
Fก superheater steam F firing
F F furnace gas temp. ก 537°c กF ก
c load steam
flow F F superheater ก F superheater metal temperature
กF F F( 600°c )
F firing rate ก F superheater metal
temperature ก F F F กF F F
steam F F F F steam F

24. ก F F ( Heat Transfer )
ก ก
ก F

26. ก (Circulation)
F superheater F F
fluid ( ) F F F F
ก F F F ก F safe limit F F F
ก F F fluid ก F F F F ก (overheat)
ก F water walls F ก 3
Natural circulation
Forced circulation
circulating pump F ก
Once through F

27. furnace

28. ก ก F

29. F acidity F F ( F ก )
acidity F pH
F pH =7 F ก
F pH กF 7 ก
F pH กF 7 F
F F F F ก ก ก กF F F F ก

30. Acid Attcak F pH กF 7 ก
ก ก ก ก F F
Caustic Attack F pH ก F 7 ก F
F กก F F F ก
ก ก corrosion F F pH ก กF

31. scale
ก F F F
F F ก overheat ก
Scale ก ก F ก F
(suspended solids)
(dissolved solids)
ก , , ก ก F ก ก ก F clarifier
ก F F F F กF silica
(Sio2- ก ก F) ก ก ก,
ก

32. F ก ก F ก ก steam drum
F ก ก ก F F F F F
( ก ก F F กF ก )
F F F F ก ก ก F steam drum
ก F F F ก
F ก กก ก ก F ก
concentration ( F F ) F continuous blowdown

33. ก (phosphate) F
F F ก F ก ก F F
ก F ก Sludge
( , ก )
ก ก ก hard scale ( ก )
ก continuous blowdown
ก F F F ก
F F

34. ก ก
F F F F
silica , phosphate , total solids ( F ) pH