Water- and oil-repellent polyester needle felt

Water- and oil-repellent acupuncture filter bags are formed by acupuncture using hydrophobic and oleophobic agents after padding, pre-baking and baking. After quickly drying, the hydrophobic agent and oleophobic agent are attached to the surface of the filter material in a mesh shape, thereby reducing the surface tension of the water and oil and the filter bag, so that the wet filter medium formed by water, oil and dust_NO It will adhere to the surface of the filter bag, thus avoiding the phenomenon of sack bag.

     Water- and oil-repellent acupuncture is usually used when the temperature of the dust collector box is lower than the dew point temperature and the humidity of the dust-containing gas is relatively high.

     Under normal circumstances, if the acidity of the dust-containing gas is very small, the dew point temperature is 40-60 ℃. If the acidity is large, the dew point temperature may be as high as 120 ℃.

     The production process of water-repellent and oil-repellent needle-punched felt is as follows: fiber opening-carding-netting-pre-pricking-main thorn-felting-singeing-calendering-impregnated PTFE (water repellent) -Drying-setting-rolling-package.

     The filter bag with waterproof and oil-repellent treatment is applied in the occasion with large moisture content. Compared with the ordinary filter bag, because the filter material is not easy to block the paste bag, the service life of the bag is extended and the cleaning cycle can be extended. The gas passed The flow is also increased, so it can save a lot of energy consumption and maintenance costs.