Coal Gasifier

Single Stage Coal Gasifier
Our single stage coal gasifier uses air and vapor as the gasifying agents to produce mixed gas. It is suitable for gasifying coking coal, hard coke, etc. and is widely used in machinery, metallurgy, chemistry, glass, building materials, food, textile and light industries.

Features:
Our single stage coal gasifier features low investment, good applicability, convenient use, easy operation, etc. Compared with direct coal burning, coal gasifier can save 20% of the fuel. Compared with oil furnace, coal gasifier can save more than 60% of the energy. Our coal gasifier is environment-friendly with its heat efficiency and good dust and smoke removal effect.

Working Principle:
Solid coal can be gasified into inflammable gases through vapor media. This coal gas is then roughly de-dusted and conveyed through a conveying pipe to burn at a nozzle. The heat produced is used to heat the thermal furnace. With the gas as the burning material, the temperature is even on the furnace. Our single stage coal gasifier is widely used as steel rolling furnace, annealing furnace, forging furnace, steel pipe furnace, glass furnace, aluminum furnace, melting furnace, cooper furnace, pottery furnace, etc.

Technical Parameters:

Name	Unit	Specifications of coal gasifier
		QM0.8	QM1.0	QM1.2	QM1.5	QM1.6	QM1.8	QM2.0	QM2.4	QM2.6	QM3.0
Diameter of furnace	mm	800	1000	1200	1500	1600	1800	2000	2400	2600	3000
Effective area of furnace hearth	m2	0.5	0.785	1.13	1.77	2.01	2.54	3.14	4.52	5.31	7.07
Applicable fuels	Feebly cohesive soot, smoke-free carbon, coke
Granularity of fuel	mm	25-80
Fuel consumption	kg/h	40-100	70-140	120-190	160-350	350-460	500-600	500-720	700-1040	850-1200	1700-2000
Carburetor	Air, vapor
Production of coal gas	Nm3/h	140-350	245-490	420-670	560-1200	1200-1600	1500-2100	1750-2500	2500-3600	3000-4300	6000-7000
Heat value of coal gas	Kj/N m3	5020-5670				5020-6000
Heating area of water jacket	m2	4.02	5.02	6.78	10.37	11.06	12.44	17.58	21.87	23.69	30.16
Production of steam	kg/h	60	80	130	200	220	260	350	420	600	840
Outlet temperature of coal gas	℃	400-500 (related to coal type)					400-500 (related to coal type)
Outlet pressure of coal gas	Pa	<1000					<980-1470			<1470-1960
Outlet diameter of coal gas	mm	219	325	325	426	426	529	630	720	820	1020
Air pressure	Pa	<3000					<4000
Temperature of saturated air	℃	50-60					50-65
Rotate speed of gray plate	r/h	0.177-1.77
Total weight of equipment	T	3.5	4.5	5	7.5	10	20	23.4	29.8	32	37.6
Power	Kw	<6	<6	<6	<7	<8	<10	<14	<20	<20	<27
Diameter of air inlet	mm	108	108	140	165	219	325	325	426	426	426

Double Stage Coal Gasifier
The working process of double stage coal gasifier consists of carbonization and gasification. During carbonization process, coal goes through intensive drying and low temperature carbonization, and gradually turns into semicoke. During the gasifying process, hot semicoke reacts with gasifying agent and turns into ash, which is discharged from ash bowl automatically.

In low temperature carbonization process, dry distillation gas is produced by evaporating water content. It is used as top gas of double stage coal gasifier and takes up 40% of the total gas amount. Dry distillation gas enjoys higher heat value (6700KJ/nm³) and low temperature (120°C), and contains large amount of tar, which is produced by low temperature carbonization. Tar is of good liquidity and can be gathered by electrostatic dust collector as chemical raw materials and fuels.

During gasifying process of the double stage coal gasifier, hot semicoke and gasifying agent conduct a series of chemical reactions including reduction and oxidation and produce gasified gas. This kind of gas is used as the bottom gas of double stage coal gasifier and takes up 60% of total gas amount. Its heat value is competitively lower (6400KJ/nm³); its temperature is higher (about 450°C). Due to its less proportion of ash, bottom gas can be processed through cyclone dust separator and wind cooler. Users can use cold purified gas without adopting elutriation method, thus avoiding producing large amount of phenol water.

Esong is a China coal gasifier manufacturer. With advanced manufacturing techniques, we can provide impact crusher, circular vibrating screen, ball mill and rotary kiln to our customers. Due to their reliable quality and reasonable prices, our coal gasifiers are widely used in metallurgy, chemistry, building materials, hydraulic power and mining industries. Please contact us for your doubts or needs and we will reply to you in the shortest time. Thank you!