Antistatic filtering material used at middle and high temperatures and preparation method thereof

Abstract

The invention provides an antistatic filtering material used at middle and high temperatures and a preparation method thereof. The antistatic filtering material comprises a non-woven cloth base and a surface layer. The non-woven cloth base and high temperature-resistant chemical fiber filaments of which surfaces are plated with metal layers are blended to form an antistatic base cloth layer. The preparation method comprises the following steps of drying the high temperature-resistant chemical fiber filaments, carrying out physical oil removal, carrying out pre-treatment, carrying out metal layer plating coating, blending the high temperature-resistant chemical fiber filaments and the non-woven cloth base, and carrying out blending, opening, scotching, netting, non-woven cloth base addition in the middle, needling and setting on a non-woven cloth surface raw material to obtain the antistatic filtering material. The antistatic filtering material has the advantages of good antistatic property, good uniformity, high temperature resistance and good bonding force, and can be used for middle and high temperature pocket-type dedusting in the fields of garbage burning, thermal power generation, steel and chemical engineering. The preparation method has simple processes, is safe, reliable, economic and environmentally friendly and can be massively produced easily.

Description

technical field [0001] The invention relates to the field of industrial textiles, in particular to an antistatic filter material for medium and high temperature and its preparation. Background technique [0002] In petrochemical, iron and steel smelting, coal-fired power plants, waste incineration, cement and other industrial fields, the smoke generated by some processes has the characteristics of flammable, explosive, high temperature, etc. During the use process due to dust and dust, dust and filter material The friction between them is likely to generate a large amount of static electricity. If the charge cannot be eliminated in time, a fire or explosion will occur. High-temperature smoke and dust put forward higher requirements for the use of filter materials. With the continuous development of science and technology and modern technology, people pay more and more attention to air quality and personal protection. Therefore, it is necessary to use high-temperature resist...

AI Technical Summary

Problems solved by technology

Among them, method (1) has disadvantages such as long production process, complicated process, and poor uniformity; methods (2) and (3) have disadvantages such as unstable antistatic performance, fast attenuation, and large surface resistance.

[0003] At present, there are few researches on anti-static filter materials at home and abroad. The invention patent (201310119167.5) provides an anti-static polytetrafluoroethylene filter bag and its preparation method. The method base fabric is made of polytetrafluoroethylene filaments and stainless steel fibers. Twisted strands are woven through warp and weft phases, and the upper and lower sides of the base fabric are covered with non-woven layers. The antistatic functional layer is different from that of the present invention.