DDF large bag type back blow deduster is mainly composed of a top box body, a middle box body, an ash bucket, wind flow pipe, blowing device, filter bag and shotcrete support ash unloading device, etc., it is widely used for purifying smoke generated in steel plants, smelters, cement plants, carbon black plant and so on, crushing, sieving and smelting enterprises burning and recycling. Colors can be customized according to customer requirements. (usually blue / gray)

DDF large bag type back blow deduster is divided into positive pressure type (also called pressure entry type) and negative pressure type (also known as suction type). This specification is introduced in negative pressure type. Dust containing gas under negative pressure, the air inlet pipe into the hopper, a spoiler is arranged in the air inlet position, the thick dust by gravity into the hopper, fine particles of dust is dust bag filter, and adsorbed on the inner wall of the dust bag, purified gas through the air purifying chamber, through equipment the top switch valve through the exhaust pipe into the fan, and then exhausted to atmosphere through the exhaust tube.