Hot-pressing compound device and method for producing membrane filter material

Abstract

The invention discloses a hot-pressing compound device which comprises a rack and a hot pressing mechanism arranged on the rack and used for hot-pressing and compounding a PTFE (Poly Tetra Fluoro Ethylene) film and a piece of glass fiber cloth, wherein the hot-pressing mechanism comprises a heating roll and a pressing roll which are arranged in parallel correspondingly, a feeding mechanism used for feeding the PTFE film to the hot pressing mechanism and a guide roll used for outputting a membrane filter material formed by the hot pressing and the compounding are respectively arranged at the upper side and the lower side of the hot pressing mechanism, and the PTEF film positioned between the guide roll and the feeding mechanism is in line contact hot-pressing compounding with the roll surface of the heating roll. The PTFE film between the guide roll and the supply mechanism is in line contact with the roll surface of the heating roll in the hot pressing and compounding manner, and therefore, the PTFE film is subjected to rapid hot pressing compounding with base layer fiber cloth, and the microporosity and the high air permeability of the PTFE film can be kept, and further the prepared membrane filter material is high in air permeability and good in dust removal effect.

Description

technical field [0001] The invention relates to the field of film-coated filter material production, in particular to a hot-press composite equipment and a method for producing the film-coated filter material. Background technique [0002] The film-coated filter material is made of polytetrafluoroethylene (PTFE), which is expanded into a microporous PTFE film, which is formed by laminating the PTFE film on a glass fiber cloth and other substrates by a special process. A new type of filter material. The film-coated filter material has the characteristics of high peeling strength, large air flow, small resistance, and uniform pore size distribution. It can be used as a dust bag or a pleated dust filter cartridge and installed in the dust removal equipment, which can quickly and effectively intercept ultrafine dust and remove dust. The efficiency is over 99.99%. Therefore, it is widely used in industrial dust filtration and material recovery. [0003] The production of film-...

AI Technical Summary

Problems solved by technology

Although this kind of hot-pressing compound equipment can realize hot-pressing compounding between PTFE film A and glass fiber cloth B, the film-coated filter material prepared by it has poor air permeability, poor dust removal effect or cannot play an effective role in dust removal.

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