Dust bag

After the media for some time, due to the sieving, collision, retention, diffusion, electrostatic and other effects, the bag surface layer of accumulated dust, this layer is called the primary layer of dust, later in this movement, has become the primary layer filter main filter layer, relying on the role of the primary layer, the larger the mesh filter can obtain higher filtration efficiency. With all corresponding increase in filter surface dust accumulation, dusting parts of efficiency and resistance, when the pressure differential across the filter is large, some will have been deposited on the filter fine dust particles squeeze past, so filter efficiency. Generally polyester needle felt continuous working temperature can reach 130 ℃, if the temperature exceeds 130 ℃ long run, it will lose a lot of strength, and have a great contraction, so that changes in the size of the bag, thereby affecting the filter effect. I am using a special process to produce Manchester needle felt, with E-glass fiber woven fabric made, together with high-quality polyester staple fiber for the surface layer, so dust bag with a high breaking strength, elongation small heat shrinkage rate is small, moderate resistance to temperature and other characteristics, to meet the operating temperature of 150 ℃ -170 ℃, room temperature and high-temperature filter media can not meet too wasteful necessary, reduce equipment maintenance costs to a large extent.