Filtering Bag with Thickness of 1.1mm-2.0mm and Longer Service Life

Material of Filtering Bag:

Polyester needle-punched filter felt refers to a felt made by needle-punching a fiber with a polyester fiber on a base fabric woven with high-strength low-stretch yarn.

Polyester fibers have poor hygroscopicity, with a moisture regain of 0.4-0.5% under standard conditions, and a moisture regain of 0.6-0.8% at a relative humidity of 100'C. Therefore, the fiber properties do not change much in dry and wet conditions. It provides good resistance to the atmosphere at most normal temperatures. Polyester fiber has high strength and good elastic recovery performance, the strength is 3.52-5.28CN / dtex, the elongation at break is 30% -40%, the fabric size is stable, the strength is high, and the elastic recovery performance is good, so the polyester fabric has good abrasion resistance. Polyester fiber has a glass transition temperature of 80 ° C and a melting point of 255 ° C-265 ° C. 230 ° C-240 ° C begins to soften, so polyester has good performance at normal temperature, and it is a reasonable cost-effective filter material in the field of normal temperature industrial and mining.

This filtering bag has features: high porosity, good air permeability, good acid resistance, good resistance to opening and so on. This filtering bag can be made of a large variety of non-woven needle filter materials. This kind of filtering bag is widely used in thousands of metallurgical, chemical, building materials, smelting, power generation, ceramics, machinery, mining, petroleum, medicine, dyes, food and other industries in the industrial and mining environment, is currently one of the most ideal room temperature filter materials.

This filtering bag has high strength, good elastic recovery performance, stable fabric size, good abrasion resistance, large void ratio, good air permeability, long service life, good dust removal effect, and good mechanical properties at room temperature (less than 130 ° C). And also has a feature of acid and alkali resistance. Due to the low price of polyester, polyester needle felt is the most cost-effective filtering medium at low temperatures.

This kind of filtering is mainly used in grinding equipment and and packaging equipment of mines , limestone powder industry and cement plants , in pudding , casting , sintering and removing dust of circuits of iron and steel industry . in collecting dust of alumina conveying , electrolytic aluminium flue gas , non-ferrous metallurgy , wood processing , grain processing and pharmacy.

Technical Data of Filtering Bag: