Fuel oil, gas and coal combustion generate high-temperature flue gas to release heat. The high-temperature flue gas first enters the furnace, then enters the waste heat recovery device of the front smoke box, then enters the pyrotechnic tube, and enters the waste heat recovery device in the flue of the rear smoke box. The high-temperature flue gas changes into low-temperature flue gas and is discharged into the atmosphere through the chimney. Henan waste heat boiler manufacturer As the waste heat boiler greatly improves the utilization rate of heat released by fuel combustion, this kind of boiler is relatively energy-saving.

Henan waste heat boiler manufactor It indicates that the waste heat of high-temperature flue gas is a common form, which is characterized by large output, concentrated production points, strong continuity, and easy recovery and utilization. The heat taken by the waste heat boiler accounts for 40~50% of the total heat. The heat recovered by the waste heat boiler can be used for production or domestic heat and power generation.

High temperature slag waste heat: such as blast furnace slag, converter slag, electric furnace slag, etc. The slag temperature is above 1000 ℃, and the heat taken away by it accounts for 20% of the total heat. High temperature product waste heat: such as coke oven coke, steel ingot billet, high temperature forging, etc. It is generally high in temperature and contains a lot of waste heat. Waste heat of combustible waste gas and waste liquid: such as blast furnace gas, catalytic cracking regeneration waste gas of refinery, black liquor of paper mill, etc., they can all be utilized.

Waste heat of chemical reaction: industrial sectors such as metallurgy, sulfuric acid, phosphoric acid, fertilizer, chemical fiber, paint, etc. all produce a large amount of waste heat of chemical reaction. Waste heat of cooling medium: for example, a large amount of cooling water discharged from cooling devices such as water jackets of industrial furnaces, and steam produced by various vaporization cooling devices contain a large amount of waste heat, which can be reasonably utilized. Condensate waste heat: the physical sensible heat of the steam used in the production process of each industrial department when condensing and reducing after the industrial process.