Two-stage gas furnace and gas export points on the lower section, the first coal bunker from the roof down through two valves into the furnace of coal, coal drying and distillation after full gas furnace in distillation section, and gradually form a semi-coke, enter gasification section, hot char gasification section and the bottom of the drum into the gasification agent adequate response, through the furnace reduction layer, the oxide layer is vaporized, the drive automatically discharged from the grate ash from the ash basin, coal carbonization in the process, will analyze the generation of volatile gas retort upper segment, accounting for 40% of the total amount of gas gas furnace installation, high heat value (7400KJ / NM), temperature than at the end (120 ℃), and contains a lot of tar This low-temperature carbonization tar product, its good liquidity, electrostatic precipitators can capture up as chemical raw materials and fuel. In the gasification section, hot semi-coke and vaporization agent after oxidation, reduction and a series of chemical reaction gas furnace gas production, called the lower gas, accounting for about 60% of the total amount of gas, which is relatively low calorific value (6000KJ / NM), high temperature (450 ℃), due to the low temperature carbonization of coal in the distillation section sufficient time into the gasification section has become a semi-coke of coal, which generates gas substantially free of tar bottom gas through the cyclone, air and other equipment into the intercooler dust cooling, and the confluence of the upper section of gas into electrical catch light oil is further purified to ensure the quality of the purification of gas to meet the needs of user productivity. Gas furnace main parts: the furnace body by the lid, water jacket, grate, chassis unit, inlet boxes and other components of the composition. Lid from welded steel, insulation castable refractory lining. Inner plate material selection 20g, outer plate material selection Q235-B, in accordance with the relevant norms of pressure vessel welding production, to ensure safe enough gas station. Water jacket connected with the drum set, demineralised water down the formation of a natural circulation system, softened water first enters the drum set, drum set to drop from the water jacket, after being heated to produce soda mixture from the riser to the drum set, the separator means for separating the steam gasification agent used to make. Water water jacket, and only in the case of a temporary stop for water softening and maintain production in order to allow short-term use tap water. Chassis device comprises a worm gear or ratchet and ash tray. Gas furnace production, Dahua Machinery (certified), gas stoves provided by Gongyi City Dahua Machinery Limited. Gongyi City Dahua Machinery Co., Ltd. (www.dhyqj.com/) is a leader in Zhengzhou, industry-specific equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. UOB mechanical leadership with the staff warmly welcome all inquiries negotiations to create Dahua machinery a better future.