Filter material containing polyphenyl thioether fiber and use

A polyphenylene sulfide fiber and filter material technology, which is applied in filtration and separation, dispersed particle filtration, and dispersed particle separation, etc., can solve the problems of poor dust wear resistance and shortened service life, and achieve good friction resistance and use. Long life and damage reduction effect

Inactive Publication Date: 2008-04-30
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the patent of Publication No. 1712100, the filter material described inside is a thin fiber layer on the filter surface, although the collection efficiency of the filter material can be improved like this, but the wear resistance of the filter surface dust in the actual use process is relatively high. Poor, the service life will be shortened

Method used

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  • Filter material containing polyphenyl thioether fiber and use
  • Filter material containing polyphenyl thioether fiber and use
  • Filter material containing polyphenyl thioether fiber and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Using PPS staple fibers with a fineness of 2.2 decitex (average fiber diameter of 14.5 μm) and a piece length of 51 mm (“Tecon” manufactured by Toray Co., Ltd.), warp yarn 20S / 2 and weft yarn 20s were obtained. It was flat-woven to obtain a PPS staple fiber plain weave fabric with a warp density of 30 threads / 2.54 cm and a weft density of 14 threads / 2.54 cm.

[0063] Using this fabric as the base fabric, use 194g / m on one side 2 The weight per unit area of ​​the laminated fiber web is 2.2 decitex (average fiber diameter 14.5 μm), PPS staple fiber with a length of 51 mm ("Tecon" S101-2.2T 51mm manufactured by Toray Co., Ltd.) and a fineness of 1.0 Dtex (average fiber diameter 9.7μm) and PPS staple fibers with a length of 51 mm ("Tecon" S101-1.0T51mm manufactured by Toray Co., Ltd.) were mixed at a weight ratio of 50:50. The short fibers were opened and carded. After cotton treatment, the needle density is 50 / cm 2 obtained by acupuncture. The fiber web forms the filter...

Embodiment 2

[0065] As the fibers constituting the fiber web on the filter surface side, PPS staple fibers with a fineness of 1.0 dtex (average fiber diameter 9.7 μm) and a length of 51 mm were mixed with a fineness of 2.2 dtex (average fiber diameter 14.5 μm) in a ratio of 50:50. , PPS staple fibers with a length of 51mm are used in combination. Furthermore, as fibers constituting the fiber web on the non-filtering surface side, 100 wt % of PPS staple fibers with a fineness of 7.8 decitex (average fiber diameter of 27 μm) and a piece length of 51 mm were used. Except for these, the filter material was obtained by the same method as Example 1.

Embodiment 3

[0066]Embodiment 3: as the fiber that constitutes the fibrous web of one side of filter surface, with the ratio of 60:40 with fineness 1.0 dtex (fiber average diameter 9.7 μ m), the PPS short fiber of length 51mm and fineness 2.2 dtex (fiber average PPS short fibers with a diameter of 14.5 μm) and a length of 51 mm are used in combination. Furthermore, as fibers constituting the fiber web on the non-filter surface side, 100 wt % of PPS staple fibers with a fineness of 7.8 decitex and a piece length of 51 mm were used. Except for these, the filter material was obtained by the same method as Example 1.

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Abstract

The invention discloses filtering materials with polyphenylene sulfide fiber and the usage of the filtering materials. The filtering materials are composed of three layers of a filtering veneer, a non filtering veneer and a middle fabric reinforcing layer, wherein the filtering veneer is a fiber netting which is composed by mixing the fiber with 30wt% to 70wt% of which the average diameter is below 10 micrometers and the fiber with 30wt% to 70wt% of which the average diameter is 10 to 20 mum, the non filtering veneer is a fiber netting formed by fiber of which the average diameter is above 20 micrometers, and the middle layer is the fabric reinforcing layer. At least the fiber of the filtering veneer and the non filtering veneer employ the polyphenylene sulfide fiber within the filtering materials which form the filtering veneer, the non filtering veneer and the middle fabric reinforcing layer. The products of the invention have the advantages of high efficiency of dust arrestment and perfect frictional resistance, and can be used as the materials of filtering bags.

Description

Technical field: [0001] The invention relates to a filter material and its application. Background technique: [0002] The filter material for purifying gas includes filter material for depth filter and filter material for surface filter. The dust collector uses filter material for surface filter. The so-called surface filtration is to collect dust on the surface of the filter material, form a dust layer on the surface of the filter material, and gradually collect the dust through the dust layer. When the dust layer reaches a certain thickness, the dust on the surface of the filter material is removed by means of compressed air. The operation of re-forming a dust layer on the surface of the filter material is repeated for filtration. [0003] Polyphenylene sulfide (hereinafter abbreviated as PPS) with excellent heat resistance and chemical resistance is used as the fiber constituting the filter material for filtering high-temperature exhaust gas discharged from coal boilers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08B01D39/16B01D46/02
Inventor 李星蔡文杰兰春艳
Owner TORAY FIBER RES INST(CHINA) CO LTD
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