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QM-3 Double Stage Coal Gasifer

    • Motor power】:  7.5-55(kw)
      Output capacity】:  4-30(t/h)
      Application range】:   it is widely applied to steeling rolling furnace, annealing furnace, forging furnace, glass furnace, aluminum melting furnace, copper furnace and ceramic furnace. 

    •  

Advantages

Double-stage coal gasifier is especially designed for bitumite coal customers. It can distill out light tar in coal. It can not only improve coal gas’ thermal value, but also can recycle tar and other byproducts. 

Coal loading stage: equipped with reliable coal level detector which will cooperate with coal loader to finish automatic coal loading task and guarantee full material level. 

Distillation stage: with furnace liner; this structure is designed strictly after heat transferring and heat exchanging. It can improve heat transfer efficiency. Here, coal for gasification will be fully dried and distilled. Thermal value of coal gas can be improved. In addition, it is beneficial for gasification of coal at lower part. 

Gasification stage: adopt water jacket structure; self-produced steam for gasification of furnace bottom; 

Coal loader device: it adopts advanced and special coal loading device which is characterized by simple operation, easy maintenance and good seal performance. 

QM-3 Double Stage Coal Gasifer

  Double-stage coal gasifier is a kind of furnace specially designed for bitumite gasification. Compared with single-stage coal gasifier, double-stage coal gasifier holds higher thermal value, less energy consumption, simple operation, no pollution, less by products and good tar quality. Double-stage coal gasifier produced by Taida Group holds large sectional area for distillation part and large coal storage amount. Distillation time is relative longer and coal can be fully distilled. In distillation stage, convective heat transfer accounts for majority which makes heat transfer effect better and total distillation. It is with simple structure and easy maintenance.
  There are two gas outlets in double-stage coal gasifier which can output coal gas with different thermal value. Compared with single-stage coal gasifier, double-stage coal gasifier holds higher gasification and thermal efficiency. There is almost no tar contained in lower part of coal gasifier while there is little amount of tar contained on upper stage. Pipe will not be blocked and coal gas holds stable thermal value. With flexible operation, high automation level and long conveying distance, double-stage coal gasifier can apply non-caking coal and bitumite. Taida double-stage coal gasifier is regarded as a kind of environment-friendly and energy-saving equipment.
  CG series coal gasifier combines advantages of large and medium sized coal gasifier. Based on real situation at home and many years’ R&D, Taida Company developed patent double-stage coal gasifier. CG series coal gasifier is called normal pressure fixed bed coal gasifier which consists of feeding system, coal gasification system, steam gasification system and slag breaking system. With simple structure, safe performance and convenient operation, double-stage coal gasifier can produce mixed semi-water gas with high thermal value. Combined with various industrial kiln furnace, double-stage coal gasfifier makes full use of coal gas and realize energy-saving aim. During production process, there is no dust and smoke out. Rotary tower type slag discharging mode holds strong slag discharging and slag breaking ability. Coal slag will be discharged into water seal tank and no fly ash trouble. Crude coal holds wide application wide. As long as the slag-bonding rate is low, QM-3 coal gasifier can almost apply any kind of coal.
  Our company can provide two types coal gasifier, normal pressure fixed bed coal gasifier and normal pressure fluid bed coal gasifier. These two types of coal gasifier can adapt to different environments. Coal gasifier is best equipment for fulfilling energy-saving and environment friendly aim. Meanwhile, in order to help customers reduce cost, we can also undertake various reconstruction project of old industrial kiln furnace. Expect your inquiry. 

Working Principle

coal gasifier

Technical Data

Model QM3-1 QM3-1.5 QM3-2.0 QM3-2.4 QM3-2.6 QM3-3.0 QM3-3.2 QM3-3.4 QM3-3.6
I.D.OFchamber mm 1000 1500 2000 2400 2600 3000 3200 3400 3600
Chamber cross-section area
 
 
0.785 1.77 3.14 4.52 5.31 7.07 8.04 9.08 10.08
Heat pearception area of water jacket 
6.98 10.36 11.69 15 15.19 17.53 18.7 19.87 32.6
Applicable coal Non-caking or weakly caking bituminous coal,coal quality should coincident with the reqirement of GB 9143
Coal size mm 20-40;25-50;30-60
Coal consumption 
kg/h
100-200 200-400 800-900 900-1200 1200-1500 2000-2200 2200-2600 2500-2800 3000-4000
Air consumption m³/kg(coal) 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5 2.0-2.5
Steam consumption  kg/kg(coal) 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5
Gas output
Nm³/h
350-700 700-1400 2500-2800 2800-4000 4000-5000 5000-6500 6300-8000 7000-9000 9000-12000
Net heating value kj/m³
(Distillation stage)
(Gasifying stage)
6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434     6060-6270 7110-7350 5225-5434    
Gas pressure kpa
(Distillation stage)
(Gasifying stage)
0.8-1.5
1.0-1.8
1.0-1.5
1.5-2.0
1.0-1.2
2.0-2.5
1.2-2.0
2.0-3.0
2.2-3.0
3.-4.5
2.2-3.0
3.-4.5
3.0-3.5
3.5-4.5
3.0-3.5
3.5-4.5
3.0-3.5
3.5-4.5
Gas temperature ℃
(Distillation stage)
(Gasifying stage)
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
80-120
450-550
Max.Blast pressure
kpa
3 4.5 6 6 6 6.5 7 7.5 9
Saturated vapor temperature
 
50-65 50-65 50-65 50-65 50-65 50-65 50-65 50-65 50-65
Steam seal pressure MPa 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Steam pressure kg/h 100 200 300 450 450 500 550 550 700
Inner steam pressure MPa 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07 0.07
Feeding coal mode Labor force Automatic
Coal feeding system Labor force Hydraulic driving
Ash tray speed
r/h
3 2.5 2.97 2 1.7 1.5 1.5 1.5 1.5
Hydraulic station power kw 0 3 7.5*2 7.5*2 11*2 11*2 11*2 11*2 11*2
Discharging ash mode Automatic wet discharging ash
Coal gas outlet diameter mm
(Distillation stage)
(Gasifying stage)
DN219
DN273
DN325
DN426
DN350
400*400
DN377
700*700
DN400
766*766
DN400
866*866
DN500
866*866
DN500
866*866
DN600
900*900
Customization is available---your inquiry for other models will be really expected; we can customize proper machine according to your requirement.

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