In the process of use, the filter bag is a very critical part of the operation of the bag filter. In operation, a cylindrical filter bag is usually suspended vertically in the dust collector. The fabric and design of the filter bag are to a certain degree. Should try to pursue efficient filtration, easy to dust stripping and durable effect.
In the pulse bag and the air box type pulse dust collector, the dust is mainly attached to the outer surface of the filter bag. When the dust gas passes through the dust collector during the operation, the dust will be trapped in the filter bag. The outer surface, and clean gas through the filter into the filter bag inside. The cage inside the filter bag is used to support the filter bag to prevent the filter bag from collapsing, and it helps to remove and redistribute the dust cake.
The filter cloth of the filter bag is filtered based on the thickness of the whole filter layer. It is a deep filter in the process of use. The depth of the entire filter layer is formed by the fiber to form a three-dimensional loose porous structure, from the inside to the outside and from the loose to the dense. Gradient filtration, high dirt capacity, long filtration life, low pressure drop.
The filter bag is mainly composed of three parts: a pre-filter layer, a main filter layer and a screen cover. It is designed to effectively absorb grease from liquids. The porosity of the filter material is as high as 80%, which greatly increases the service life of the product. Oil up to 12 to 20 times the weight of the bag itself.
In the production process of the filter bag, the pure polypropylene capillary fiber is mainly used for hot melt injection molding. The outer layer of the product is thickened and deep-filtered material, and is used to provide layered filtration when used; the large-diameter filter element is included in the inner sleeve. To further enhance the overall depth of filtration and improve the ability to contain impurities. The average service life is more than five times that of ordinary polypropylene filter bags. The highest filtering accuracy is 3um. The collar is a plastic ring.