Dust filter bag refers to the matching accessories in the dust collector. In the production process of thermal power generation, iron and steel, coking, non-ferrous smelting and cement industries, a large amount of dust will be generated, which will cause serious pollution to the environment. Therefore, the state has formulated strict requirements for the dust emissions of such enterprises, and bag dust removal is an ideal solution that is widely used. Dust filter bag is called the heart of the bag filter and plays a very important role in the dust removal effect.