dust filter bag

Product Description

Polyester needle felt. 
The polyester needle-punched filter felt is made of **2.5D polyester fine denier yarn, woven with high strength and low elongation yarn and reinforced by needle-punched and post-treated process. 
This product not only has the characteristics of high porosity, good air permeability, acid resistance and moderate alkalinity, but also has very good wear resistance, so it is the largest use of a variety of felt filter. 
Gram weight from **0g/,***0g/, thickness from 1mm*4mm plant can be produced. 
The post-treatment methods include calendaring, singeing, heat setting, impregnation and drying, coating, etc. 
The utility model has the characteristics of stable size, easy ash cleaning, long service life, etc. 
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The surface smoothness of PET needle felt has a great influence on the dynamic operation resistance of the filter material. 
The initial resistance of the filter material is determined by the permeability of the filter material itself, and the resistance in operation is many times larger than the initial resistance. 
The operating resistance depends on the smoothness of the surface of the filter material and the effect of ash cleaning, etc. 
It is generally hoped that the greater the amount of air permeability, the better, that is, the lower the resistance, when the filtration efficiency is the same as that of the filter material, because a large amount of energy can be saved in this way. 
In the dust remover with air flow blowing back soot cleaning, when the same pressure and the same air volume are used for dust cleaning, the cleaning effect of the fabric with large air permeability as the filter bag is better than that of the wovens with small air permeability. 
Therefore, how to improve the air permeability and improve the surface smoothness of the filter media, reduce dust adhesion and reduce the operation resistance is the first topic that should be studied in the filter media production plant under the condition of ensuring the filter media to achieve a higher filtration accuracy. 
The air permeability of needle-punched filter felt developed by our factory is more than *0% higher than that of ordinary press finishing filter material, and the surface smoothness is more smooth and smooth than that of calendaring finishing.