Improved Single-stage Gas Furnace

Introduction

Improved single-stage gas generator has overcome the inherent defects of the original single-section gas generator. With gasification efficiency and gas calorific value increased by 10%-15%, and the ash residue carbon content reduced by 10%-20%, the improved gas producer greatly reduced the labor intensity of operators and the failure rate of equipment.

Advantages

Low investment, large gas production, high heat utilization, complete gasification, wide adaptability of feed coal and simple operation.

Application

The improved single-stage gas generation furnace is widely used as metal heat treatment furnaces, ceramic kilns, aluminum melting furnaces, copper refining furnaces, forging and burning furnaces, metal products heating furnaces, galvanizing furnaces, drying furnaces, and annealing furnaces in chemical, refractory, cable and boiler industry, etc.

After entering the coal field, the raw coal is broken, screened and transported to the coal storage layer (the coal storage bunker). Then, the coal is added into the furnace by the automatic coal feeder, transferred to the gasification section and reacts with the gasification agent to generate the gas (the gasification agent is composed of air and steam). The generated gas is exported via the outlet of the gasification section and enters the quenching and cooling tower (double vertical pipe). Then, it enters the scrubbing tower for further cooling and dust removal. Finally, after entering the pressurizing machine system for dehydration and desulphurization, the purified gas is sent to the gas supply point.

Parameter	Φ1.5	Φ2.0	Φ2.4	Φ2.6	Φ3.0	Φ3.2
furnace inner diameter（m）	1.5	2.0	2.4	2.6	3.0	3.2
furnace sectional area（㎡）	1.77	3.14	4.52	5.3	7.07	8.04
Working pressure of water jacket（Mpa）	0.294
steam output of water jacket（Kg/h）	~200	~340	~420	~470	~550	~650
Fuel fragmentation and coal type（mm）	6-13、13-25、25-50 non-caking coal、weakly caking coal、long flame coal 、lignite and gas coal
Fuel consumption（Kg/h）	370~530	630~950	1000~3000	1430~1630	2000~2670	2200~2750
Coal gas calorific value (low)（KJ/Nm³）	5225~5670
Coal gas production（Nm³/h）	1120～1600	1900～2850	3000～4000	4300～4900	6000～8000	7000～9000
Gas pressure at furnace outlet（℃）	400~500
Blast pressure at furnace bottom（Pa）	<2450	<3000	<4000	<4000	<6000	<6000
Note: gas production and calorific value are related to coal type and coal quality