化工设备（Chemical equipment）.doc

化工设备（Chemical equipment） Working principle of the working principle of the 2010-5-20 bag filter bag filter dust after ash hopper in the gas into the dust, and the sudden enlargement and air distribution plate section due to air, the air in the part of the massive particles in the dynamic and inertia force under the action of sedimentation in the hopper; Fine granularity and density of small dust particles into the dust filtering chamber, spread by brown and sieve filter combined effect, make the dust deposition on the surface of the filter material, after purification, the air chamber by the exhaust gas into the net by the fan discharge. The resistance of the cartridge filter increases with the increase of dust layer thickness of the filter material. When the resistance reaches a certain value, it is cleared. At this time of PLC program control pulse valve opening and closing, lift valve closed, first one room will be truncated filtering flow, and then the electromagnetic pulse valve open, compressed air and a short time the case on the rapid expansion, the influx of cartridge, cartridge expansion deformation produces vibration, and under the action of reverse flow scouring, attached to the filter bag dust on the surface of the appearance, stripped fell into the hopper. After the clearance is completed, the electromagnetic pulse valve is closed, the lift valve opens, and the chamber is filtered again. The clean ash chamber is carried out successively, starting from the first chamber ash to the next clear grey period. The lost dust falls into the ash bucket and is discharged through the unloading valve. 1. Soot removal equipment The traditional filter cartridge type dust collector has two kinds of clear ash modes, one is the high pressure airflow and the other is the impulse air jet. The practice shows that the advantage of the former is that the air flow is uniform and the disadvantage is that the gas consumption is large. The advantage of the latter is that the gas