Speaking of dust can not help but talk about such an artifact, and polyester needle felt, is a very magical dust artifact, talk about this artifact today!
Polyester normal-temperature needle felt is a fine fiber cloth with non-woven needle punching process using staggered fibers and evenly distributed voids. The surface of needle felt made from polyester staple fiber and polyester twisted yarn is hot-rolled, singed or coated. After the post-treatment, the surface of the filter is smooth and smooth, and it is not easily blocked by dust. The filter has a large voidage, good air permeability, a wide range of uses, strong chemical stability, and can not only filter the normal temperature gas, but also filter the acid and alkali. The corrosive gas, and can filter water, oil, is the normal temperature conditions, liquid-solid separation and other fields ideal filter material. Polyester needled felt has a high production speed, high labor productivity and low product cost. Because the production process is relatively simple, it is easier to monitor and ensure the quality of the product. Polyester needle felt is a filter cloth made by high-frequency acupuncture of a needle-punching machine. After singeing, hot-rolling and other post-treatments, the surface is smooth, the interior is difficult to be blocked by dust, and the formation of dust layer is facilitated. The dust-catching effect is stable. Therefore, the filtering and purifying effect of dust is better than that of general fabric filter materials; the inner part of the polyester needle punch felt filter bag is a three-dimensional structure, and the porosity is as high as 70%-80%, which is 1.6-2.0 times that of ordinary woven filter materials, and the air permeability is very high. High, low resistance; polyester needle felt dust bag with good dimensional stability, high strength, long durability and other characteristics, at the same time, it also has a small resistance, easy cleaning and other unique advantages. In the mineral processing, coal preparation, petroleum, chemical and other industries that need to filter the tiny dust particles and ensure the filtering effect of the application of a wide range of applications; polyester needle punch felt than traditional woven filter material performance is more superior. Sustainable operation at temperatures below 120°C, good acid and alkali resistance. It is widely used in the dust removal and filtration field where the flue gas temperature is lower than 100°C. Basically can replace most of the normal temperature filter material used.