Anti-static composite filtering material and preparing method thereof

Abstract

The invention discloses an anti-static composite filtering material and a preparing method thereof. The anti-static composite filtering material comprises a first filtering layer, a second filtering layer, and a stainless steel wire, the first filtering layer and the second filtering layer are a G5 collodion-free filtering layer and a G3 collodion-free filtering layer, an overall structure is formed through press fitting twice, and needling hooking is achieved through a stainless steel wire. According to the anti-static composite filtering material and the preparing method thereof, the filtering efficiency is improved, the anti-static composite filtering material has a certain flame retardant effect and an anti-static effect, and is not prone to deformation, the intensity and inoxidizability of a filter material are added, and the service life is long.

Description

technical field [0001] The invention relates to the field of filter materials, in particular to an antistatic air filter material. Background technique [0002] The technical background related to the present invention will be described below, but these descriptions do not necessarily constitute the prior art of the present invention. [0003] Filter material is the "heart" of filtration and separation equipment and an important part that determines the separation effect. It plays a very important role in chemical, pharmaceutical, metallurgical and other industries. However, due to the large difference in the nature of working materials in different industries, the use environment of filter materials is complex, which determines the uncertainty and complexity of filter material selection under different conditions. [0004] As a green and low-carbon transportation mode, rail transit has the advantages of large capacity, high safety and reliability. Public areas such as subw...

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Problems solved by technology

[0005] At present, the main problems in the air filtration process in the subway environment are: 1) The concentration of particulate pollutants accounts for more than 80%, the air quality is not good, and the requirements for the performance of the filter material are higher in the process of filtering fine particulate pollutants ;2) The return air flow with serious refrigerant pollution leads to blockage of ventilation and air conditioning heat exchange equipment, low heat exchange efficiency, high maintenance and manual replacement costs; 3) A series of safety hazards will be generated due to electrostatic adsorption of dust when the filter material is working, At present, static electricity is mainly used to coat a conductive material on the surface of the filter material, or to blend commonly used fiber materials with conductive fibers, but these methods have not solved the electrostatic phenomenon of the filter material well. , and will affect the filtration performance of the filter material

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