Scope baghouse (1) housing part: including clean room (or gas purification tank), the filter chamber, compartment partitions, access doors and shell structures. Clean interior has a poppet valve plate with flowers, blowing a short tube: bag filter chamber has its skeleton. Widely used in cement crushing, packaging, library roof, clinker cooler and a variety of mill dust collection system, also used in metallurgy, chemical, mechanical and civil boiler exhaust collecting. Structural features (2) and vertical pillars cage ladders, railings. (3) the wind out of the box: including air inlet pipe and the bulkhead. Single row (or column) structure disposed in the housing side, double (or double row) structure disposed in the housing middle: 32 series of small non-box, out of the wind pipes were connected to the hopper and clean room . (4) Compressed air piping and pressure relief devices, water separator, oil mist, etc. (5) and cinder ash bucket agency: unloading hopper according to different series, different concentrations of dust imports were set screw conveyor, air delivery chute and rigid impeller discharge device (cinder valve). (6) pulse cleaning devices: including pulse valves, air bags, air cylinder poppet valve and solenoid valve.