High-temperature fluorine-fibre filtering materials for dust-collecting face and its preparation

A technology of high-temperature filter material and manufacturing method, which is applied in the research and development of filter material, the manufacture of the filter material, and the field of filter material for flue gas treatment. It can solve the problems of poor textile performance of polytetrafluoroethylene fiber, difficult process and high equipment requirements. Problems, to achieve the effect of feasible process, improve water repellency, and ensure filtration performance
CN1895723AInactive Publication Date: 2007-01-17NANJING JIHUA 3521 SPECIAL EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING JIHUA 3521 SPECIAL EQUIP
Publication Date
2007-01-17
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A refractory filtering fluorine fiber material used for the incident surface is composed of a basic felt consisting of cloth substrate and fibrous surface layer, a covering layer made of teflon fibers, and a smooth surface layer. Its preparing process includes such steps as providing cloth substrate, preparing fibrous surface layer, needling to become felt, preparing covering layer, needling, and hot rolling for fixating shape.
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Description

technical field

[0001] The invention relates to a filter material, especially a filter material used for flue gas treatment, and the invention also relates to a manufacturing method of the filter material, which belongs to the research and development of the filter material

[0002] technology field. Background technique

[0003] At present, the filter materials used for flue gas treatment of coal-fired boilers and waste incinerators are mainly polyphenylene sulfide (PPS) needle felt, polytetrafluoroethylene (PTFE) fiber needle felt, and glass fiber coated filter material. Among them, polyphenylene sulfide (PPS) needle-punched felt is limited by material properties, and its operating temperature cannot exceed 190°C, and its oxidation resistance is not good, so it cannot be filtered in a high-oxygen environment. In addition, polyphenylene sulfide (PPS) itself is not It has water repellency, and it is easy to cause sticky bags under low temperature operation or high humidity;...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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