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Polyphenylene sulfide fiber fabric with body membrane and manufacture method thereof

A technology of polyphenylene sulfide fiber and bulk membrane, which is applied in textile and papermaking, fabric surface trimming, chemical instruments and methods, etc., can solve the problems of increasing the cost of dust removal, increasing the filtering area, affecting the dust removal effect, etc., so as to improve the service life. , High dust removal efficiency and good air permeability

Inactive Publication Date: 2009-12-30
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

However, this method will increase the volume of the filter equipment, increase the use of filter materials, and increase the cost of dust removal.
For the renovation of old equipment, limited by the site and equipment conditions, it is almost impossible to increase the filtration area
[0004] Second, during the cleaning process, the needle felt is repeatedly impacted by airflow and machinery, and its covering film is easy to fall off, which affects the dust removal effect and reduces the service life of the needle felt

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Single-sided lamination on polyphenylene sulfide fiber needle felt

[0014] The technological process is: polyphenylene sulfide fiber needle felt → singeing → hot-melt film pressing → finished product of polyphenylene sulfide fiber needle felt with a certain porosity.

[0015] The specific process and process conditions are as follows:

[0016] 1. Put the polyphenylene sulfide fiber needle felt on the singeing machine;

[0017] 2. When the surface temperature of the singed PPS fiber needle-punched felt drops to about its melting point (275-290°C), use the pressure roller to press the film, the temperature of the pressure roller is 154°C; the pressure of the pressure roller is 15.5MPa; The felt running speed is 8m / min.

Embodiment 2

[0018] Embodiment 2: Double-sided lamination on polyphenylene sulfide fiber needle felt

[0019] The process flow is: PPS fiber needle-punched felt laminated on one side → singeing on the non-film side → hot-melt lamination on the non-film surface → finished product of PPS fiber needle-punched felt double-sided laminated.

[0020] The specific process and process conditions are as follows:

[0021] 1. Put the polyphenylene sulfide fiber needle felt that has been laminated on one side on the singeing machine to singe the non-film side;

[0022] 2. When the surface temperature of the singed PPS fiber needled felt drops to about its melting point (275-290°C), use a pressure roller to press the film on the non-film surface. The temperature of the pressure roller is 152°C, and the pressure of the pressure roller is 13.5 Mpa, the running speed of needle felt is 10m / min.

[0023] Example sample and polytetrafluoroethylene (PTFE) covering film air permeability comparison table

[0...

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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PUM

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Abstract

The invention provides a polyphenylene sulfide fiber fabric with a body membrane and a manufacture method thereof, aiming to solve the problem that a needled felt with a covering membrane enables micropores of the covering membrane to shrink during a hot pressing process, and contraction of a polyphenylene sulfide micropore can be again caused in use due to a high-temperature work condition so as to seriously affect the ventilation effect, and even affect the normal production of dust-removal enterprises; and the needled felt is subjected to repeated impact of air current and machines when the ash is cleared, and the covering membrane is easy to drop off. The invention adopts the essential that the surface of the polyphenylene sulfide fiber fabric is provided with a layer of the body membrane produced by singeing and hot roller pressing. The invention has the characteristics of no dropping of the body membrane, good ventilation property, high dust-removal efficiency, smooth surface and easy ash clearing.

Description

technical field [0001] The invention relates to a fabric used for filtering dust in a high-temperature flue gas environment, and the said fabric is a polyphenylene sulfide fiber fabric with a bulk film. Background technique [0002] Because polyphenylene sulfide (PPS) fiber has the characteristics of high temperature resistance and corrosion resistance, it is made into fabrics such as needle-punched felt as a filter material for high-temperature smoke and dust. In order to improve the dust removal accuracy and wear resistance of the needle felt, it is also necessary to heat-press a layer of polytetrafluoroethylene microporous film on the surface of the polyphenylene sulfide fiber fabric or glue a layer of polytetrafluoroethylene microporous film , as disclosed in CN1223161 "Multifunctional Glass Fiber Composite Filter Material and Its Manufacturing Method", it is to heat-press the surface of glass fiber composite filter material (also called glass fiber needle felt) with an ...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12D06C9/00B32B27/12
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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