During the operation of a bag filter, for dust in the air that contains a lot of moisture and oil, as well as dust that is hygroscopic and easily deliquescent, a water film may be formed on the surface of the dust to increase adhesion. Although this helps to capture dust, it will make it difficult to clean the dust, especially when high-temperature gases are in a high-temperature state, condensation may occur due to the cooling effect of external gases, This not only causes the collected dust to scale and block on the surface of the filter bag, but also increases the resistance of the dust removal equipment, directly affecting the normal operation of the dust removal equipment. Water repellent and oil resistant needle felt can effectively prevent water and various oil stains from adhering and penetrating. Compared with ordinary filter materials, it not only has waterproof and oil resistant properties, but also has anti cleaning and easy peeling properties for dust.
