2, PTFE peritoneal dust bag dust bag bag filter bag filter bag. The product is suitable for industrial dust filter, especially for blast furnace gas, smoke dust, cement plant coal dust and other industries dust collection, is the best choice for dust collection. PTFE increase in the original film peritoneal bag bag, the bag permeability of PTFE films with high density, acid and alkali resistance characteristics. Use in the necessary environment. The skeleton is bag accessories, bag use must complete skeleton text tube etc.. Dust explosion: dust and other substances have a certain energy. Because of the small particle size and large surface area, the surface energy of the dust can also increase. A 1 g heavy coal and its surface area is only 5 ~ 6C square meters, and 1 g of coal dust, the surface area of 2 square meters. The dust mixed with the air to form combustible gas mixture, in case of fire or high temperature object, easy ignition, complete combustion process in a moment, release a lot of heat, the combustion gas is a sudden increase in volume, the sudden expansion, the formation of a high pressure expansion.