As long as the oil fired boiler and gas-fired boiler are equipped with environmentally-friendly imported brand burners, they are also environmentally-friendly boilers. Needless to say, electric boilers are environmentally-friendly boilers without waste gas emission. The flue gas treatment of the environmental protection boiler and the optimization and reset design of the whole system not only greatly improve the thermal efficiency of the boiler, but also reduce the gas emission of the main pollutants. Thus, the environmental protection boiler fully realizes the social and economic benefits of environmental protection and energy saving. Environmental protection boiler refers to the boiler burning bituminous coal without smoke. The principle is: first, the coal is heated at low temperature to produce carbon monoxide and gas, and carbon monoxide is burned, so the smoke emission is colorless, which is called smokeless. This type of boiler has external insulation and internal flue gas return, which not only improves the coal gasification rate, but also improves the thermal efficiency of the boiler, and reduces the flue gas emission temperature to ≤ 150 ℃

Environmental protection boiler