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Coal gasifier feature, 1.High efficiency, 2.High gasification efficiency, 3.High heating value, 4.Higher autoimmunization - details see: https://www.machineto.com/yisheng-3-2m-two-stage-cold-gas-coal-gasifier-10221432

Yisheng 3.2M Two Stage Cold Gas Coal Gasifier

1. What is the coal gasification

Coal gasification is the formation of gasifying agent and the carbon.

The gasifying agent(water vapor and air mixture) flowing through the hot fixedbed of combustion coal,

there are series chemical reaction process. Gasifying agent contained oxygen and steam reaction with the

carbon to produce O2 , H2 , CH4, C2H4, N2 among them , the CO H2 CH4 ,CmHn are combustible gases.

2. Two stage coal gasifier cold gas process flow diagram

The two stage Coal Gasifier system including gasification system hydraulic coal feeding system gasifier body system

Purifying system Central grease lubrication system and Grate system.With 40~60mm bituminous coal for fuel. In the

upper stage, coal is carbonized. The carbonized coal becomes semi coked, then gets down to be gasified in lower stage.

Carbonization and gasification of coal are finished in same equipment. The carbonizing and gasifying gas, after optimized

allocation, will be disposed by dust removing, tar removing, cooling and sulfide removing technology.The clean coal gas

out of furnace is supplied to industrial kiln by gas pressure adder and transmission system.

3.Technical parameter of the two-stage coal gasifier

Specification			YSQ 2.0	YSQ 2.6	YSQ 3.0	YSQ 3.2	YSQ 3.4	YSQ 3.6	YSQ 4.0
I.D. of chamber (mm)			2000	2600	3000	3200	3400	36000	4000
Gasification area(m2)			3.14	5.31	7.07	8.04	9.07	10.17	12..56
Applicable coal			Non-caking or weak-caking anthracite bituminous coal
Coal granularity			20~40,25~50,30~60
Coal consumption		Min	785	1327	1766	2010	2269	2543	3140
		Max	1036	1751	2331	2653	2995	3357	4145
Gasification agent			Air+Steam
Air consumption (m3/kg)			2.2~2.8
Steam consumption (m3/kg)			0.3~0.5
Coal gas heat value			6060~6270
Coal gas outlet pressure		Up stage	1.2~2.0	1.2~2.0	1.2~2.0	1.2~2.0	1.2~2.0	1.2~2.0	1.2~2.0
		Down stage	1.5~2.5	1.5~2.5	1.5~2.5	1.5~2.5	1.5~2.5	1.5~2.5	1.5~2.5
Coal gas outlet temperature			400~550
Max blast air pressure at the bottom of the gasifier			7000	7000	7000	7000	7000	7000	7000
Saturated air temp.(°C)			50~65
Coal feeding mode			Coal feeding automatically
Coal feeder driving device			Hydraulic driving
Ash discharging mode			Automatically wet ash discharging
Max speed of the ash tray			2.97	1.7	1.7	1.5	1.5	1.5	1.5
Ash tray driving power(kw)			7.5	7.5	7.5	11	11	11	11
Coal gas output(Nm3/h)	Min		2355	3980	5299	6029	6860	7630	9420
	Max		3109	5254	6994	7958	8984	10072	12434