The production process of water-repellent and oil-proof needle felt is as follows: fiber opening-carding-paving-prefabrication-maintacking-felting-singeing-calendering-impregnation-PTFE (waterproofing) drying-setting-rolling-rolling Equipment.
Filter bags made of water-repellent and oil-repellent filter cloths are used in applications where the moisture content is large. Compared with ordinary filter bags, filter bags are not easy to block the paste bags, prolong the cleaning cycle and filter bag service life. The flow of gas passing through is also increased, which can save energy and maintenance costs, while also increasing production.
Water-repellent and oil-proof needle felt In the operation of the bag filter, the dust in the gas contains more moisture and oiliness, as well as moisture-absorbing and deliquescent dust. On the dust surface, water film or oil film may be formed to increase the adhesion. Although this helps to catch dust, it will make cleaning difficult. In particular, when the high-temperature gas is in a high-humidity state, dew condensation occurs due to cooling of the outside air. This can not only make the collected dust on the surface of the filter bag fouling, or even plug, but also can corrode the structural materials, increase the operating resistance of the dust collector, and directly affect the normal operation of the bag filter. In view of this, the ordinary filter material must be further improved in function to apply this special working condition, prevent or reduce the dust bag phenomenon, improve the filter material life and work efficiency.