Technical principle of MBZ direct coal-fired hot blast stove

[xiaohei]

MBZ direct-type coal-fired hot air stove is composed of MBL coal-burning machine, high-temperature gas purification room and air mixing room. This device uses a coal-fired machine as the first-level heat supply. The raw (bituminous) coal is added to the coal hopper at one end of the coal-fired machine through the coal feeder, and the coal seam of a certain height is fed into the coal-fired machine at a uniform speed by the chain grate. In the combustion chamber, under the action of the combustion-supporting fan, the high-temperature flue gas generated by coal combustion is ejected from the side fire outlet of the coal-fired machine into the high-temperature gas purification chamber. [link text]( link url)https://www.vacfurnace.com/technology-frontiers/rare-earth-low-temperature-vacuum-carburizing-process-of-20crmnti-steel/
The high-temperature gas purification chamber is made of refractory materials, and the high-temperature flue gas undergoes secondary combustion in the purification chamber, and a small amount of dust entrained during the coal combustion process is polymerized and settled in the purification chamber by high temperature. The clean hot air (~1000°C) coming out of the purification room is mixed with a certain amount of cold air, and mixed to form hot air at the temperature (200-300°C) required for material drying, which enters the spray tower to dry the material (papermaking black liquor). [link text]( link url)
https://www.vacfurnace.com/technology-frontiers/influencing-factors-of-20crmnti-gear-vacuum-carburizing-and-quenching-deformation/