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

A technology of composite equipment and film-coated filter material, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problem of poor dust removal effect, inability to effectively remove dust, poor air permeability of film-coated filter material, etc. question

Active Publication Date: 2013-09-04
黄山无极雪食品有限公司
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  • Abstract
  • Description
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  • Application Information

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 fi

Method used

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

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Embodiment Construction

[0013] Through a large number of experimental analysis of the film-coated filter material produced by the traditional hot-pressing composite equipment, it is obtained that the PTFE film A and the base fiber cloth can be effectively compounded without changing the high air permeability and dust removal performance of the PTFE film A itself. The lamination temperature is within a certain range. If the temperature is too high, it will easily cause the PTFE film A to mature. If the temperature is too low, the two cannot be effectively laminated. Although the traditional thermocompression lamination equipment can effectively control the temperature of thermocompression lamination, it uses nip roller 2 to press-coat PTFE film A and glass fiber cloth B to cover the outer surface of heating roller 2 for thermocompression lamination. , that is, the PTFE film A is in surface contact with the heating roller 2, and the conveying rate of the PTFE film A is limited, so that the heating time ...

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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-...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10
Inventor 周涛
Owner 黄山无极雪食品有限公司
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