Bag filter is an efficient air purification equipment, which is widely used in the field of industrial dust control. Its basic components include air inlet, filter chamber, ash cleaning device and air outlet. 
The air inlet is the inlet of the dust collector and introduces the dusty gas into the filter chamber. The filter chamber is equipped with a dust bag, which blocks the dust on the surface of the bag through the filtration effect of the bag, so that the clean gas can pass through. The ash cleaning device is used to remove the dust attached to the surface of the bag, and the ash is generally cleaned by pulse injection or mechanical vibration. The air outlet is the outlet for the filtered clean gas to be discharged from the dust collector. The working principle of the baghouse is based on the principles of "filter interception" and "inertial collision". When the dusty gas enters the filter chamber, due to the filtering effect of the bag, the dust particles are intercepted on the surface of the bag to form a layer of filter cake. As the cake thickens and the resistance increases, cleaning is required to restore the collector's performance. 
There are many ways to clean the ash, such as pulse jet cleaning and mechanical vibration cleaning. Among them, pulse jet ash cleaning is to use compressed air to blow the dust off the surface of the bag, while mechanical vibration is to vibrate the bag through a vibrator, so that the dust falls. 
After dust removal treatment, the clean gas is discharged through the air outlet to complete the air purification process. The performance of the bag filter is affected by a variety of factors, such as the selection of filter material, filtration speed, cleaning method, etc. In practical application, it is necessary to select the appropriate dust collector model and parameters according to specific working conditions to ensure good dust removal effect and stable operation of the equipment.