Method for producing anti corrosion composite filtering material

A manufacturing method and technology of composite filter materials, applied in separation methods, chemical instruments and methods, filtration separation, etc., to achieve the effects of increased service life, simple methods, and easy mastery and operation

Inactive Publication Date: 2007-04-11
辽宁澳源实业发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to provide a method for producing a composite filter material that is resistant to high temperature and resistant to corrosion by gases with complex chemical components, so as to solve the practical problems existing in the use of existing filter materials

Method used

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Embodiment Construction

[0018] The technical scheme of the present invention is as follows; it is divided into two processes of manufacture of composite needle felt and dip coating of anticorrosion treatment liquid and film pressing.

[0019] 1. Manufacture of composite needle felt

[0020] On both sides of the ordinary glass fiber base cloth, there is another layer of short filament layer mixed with polyphenylene sulfide fiber short filament and glass fiber chopped filament. The thickness of the short filament layer is 0.5mm. The polyphenylene sulfide fiber in the short fiber layer is 35%, and the glass fiber chopped strand is 65%. On one side, a polyphenylene sulfide veil is added. The specification of the veil is 100g / m 2 . The base fabric, staple layer and veil are then needle felted.

[0021] 2. Dip coating and film pressing of anti-corrosion treatment liquid

[0022] 2-1 Preparation of preservative treatment solution

[0023] technical formula

[0024] Composition Weight percent Unit

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Abstract

The manufacturing methods of anticorrosion compound filter materials, belongs to the research and development areas of the fiberglass filter materials used for the manufacture of industrial gas filter. Currently the materials used for the manufacture of industrial gas filter such as fiberglass, chemical fiber materials resistant to high temperatures but not corrosion resistant or just the opposite, productions made by existing material have short life periods, bad filtering effect. The invention provides the manufacturing methods to the production of both high temperature and corrosion resistant filter materials, including the manufacture of composite needled felt and preparation and dip of preservative liquid. The needled felt is made by spreading the polyphenyl thio ether chopped fiber and shot-cut chasing fiberglass mixed layer on the two sides of fiberglass base cloth, then spread a polyphenyl thio ether veil bed, then needled to obtain the felt. The anti-corrosion treatment agent is prepared by adding water in poly tetrafluoro ethylene dispersed liquid Teflon and silicone oil emulsion. The dip-coating processing is handle felt through the agent flume then transported to pattern furnace or stretching forming machine dried and formed, then filmed at high temperatures. The invention is simple and easy to operate with very good application effect.

Description

technical field [0001] The invention belongs to the research and development field of glass fiber filter material used for manufacturing industrial flue gas filtering products. Background technique [0002] At present, there are many materials used to manufacture industrial flue gas filtration and treatment products, such as glass fiber series and chemical fiber series. But at present, these materials cannot meet the requirements of high temperature resistance and corrosion resistance from the perspective of use. Especially for the flue gas with complex chemical composition emitted by the current garbage combustion or coal-fired boilers, due to its strong corrosiveness, the manufacturing materials of existing filter products are not ideal. The problem of bad effect arises. There is no practical application of filter materials produced by the same method as the present invention. Contents of the invention [0003] The purpose of the present invention is to provide a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16
Inventor 祝万山祝成振
Owner 辽宁澳源实业发展集团有限公司
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