Water Repellent and Oil Resisting Needle Filter Felt Dust Bag: The filter cloth is calendered and impregnated with PIFE (water repellent). Usually it is used when the temperature of the dust collector box is lower than the dew point temperature and the humidity of the dust gas is relatively high. Under normal conditions, if the acidity of the dust-laden gas is small, the dew point temperature is 40-60°C. If the acidity is large, the dew point temperature may be as high as 120°C. The oil-repellent and water-repellent treatment using fluorocarbon resin and PTFE impregnating treatment can more easily trap dust on the surface of wet dust-containing gas (especially water-absorption and deliquescent dust) filter bags to avoid and reduce the occurrence of paste-bag phenomenon. The filter material is not easy to jam the paste bag, the service life of the cloth bag is prolonged, and the gas flow rate is increased, which greatly saves the maintenance cost.
Water and oil repellent treatment
Water Repellent and Oil-proof Acupuncture Filter Felt Dust Bags are used in various bag type dust collectors, pulse bag dust collectors, and bag dust removal equipment.
The dust bag is a key part of the operation of the bag filter. Usually the cylindrical filter bag is suspended vertically in the dust collector. The fabric and design of the filter bag should strive for efficient filtration, easy removal of dust, and durability. In pulse dust collectors and air box pulse dusters, dust is attached to the outer surface of the filter bag. When the dust-containing gas passes through the dust collector, the dust is trapped on the outer surface of the filter bag, and the clean gas passes through the filter material into the interior of the filter bag. The cage inside the filter bag is used to support the filter bag to prevent the filter bag from collapsing, and it helps the removal and redistribution of the dust cake.
The use of a bag filter to treat dust-laden gases with high moisture content or high viscosity, and easy adhesion of dust bags has always been a headache for the dust removal industry. Foreign countries have tried to solve the problem of anti-condensation and bag paste bags with the membrane filter bag and the surface of the filter material to solve the problem, and achieved significant results. In recent years, our company has been focusing on the development of post-finishing technology and equipped with the most advanced filter finishing equipment in the country. The products are processed through singeing, calendering, dipping, coating, drying and shaping, and the post-processing level Leading position in China.
The role of water repellency and oil repellency is reflected in the following aspects: 1. Cross-linked membranes can prevent chemical substances from further contacting with the fibers, improve chemical resistance (ie, acid and alkali resistance); 2. Improve oxidation resistance; Cross-linked film has water and oil repellency; 4, can prevent further penetration of small particles of dust and friction fiber cross-section; 5, can improve the filtering accuracy and facilitate the loss of dust cake, reduce running resistance; 6, increased fiber toughness and strength .