With the industrialization of China and the state's emphasis on corporate sewage disposal, the pressure on the prevention and control of air pollution from bag filters will continue to increase. “Atmosphere Ten” will increase the intrinsic and intrinsic height of the inhalable particulate matter (PM10) and fine particulate matter (PM2.5) to and harm the health of the people and affect the society. At this point, the development of bag dust removal will usher in an unprecedented spring. In recent years, the level of application technology of bag filter in China has been greatly improved, and it has been widely used in various industries, and the application field is expanding.

        The bag filter mainly depends on the efficiency of the dust layer thickness of the filter bag filter and the filter bag dust collector. In general, dense filters, dust layer thickness, and high efficiency; but the corresponding gas capacity, ie, processing, filtering wind speed is low. How to ensure high efficiency and stability of the filter pressure loss, at the same time, but also increase the filtration speed is a problem that needs further research. The increased filtration speed depends on the cleaning method and the performance of the filter.

       (1) The dust removal efficiency is high, generally above 99%, and the dust concentration of the outlet gas of the dust collector is within tens of mg/m3, which has higher classification efficiency for fine dust of submicron particle size.

       (2) The range of air volume is wide. The small one is only 1min m3, and the large one can reach tens of thousands of m3 in 1min. It can be used for dust removal in industrial furnaces and kiln to reduce the emission of atmospheric pollutants.

       (3) The structure is simple and the maintenance operation is convenient.

       (4) Under the premise of ensuring the same high dust removal efficiency, the cost is lower than that of the electrostatic precipitator.

       (5) When high temperature resistant filter materials such as glass fiber, polytetrafluoroethylene and P84 are used, they can be operated at high temperature of 200 ° C or higher.