Reinforcing fabric for non-woven fabric heat-resisting filter material and application thereof

A filter material, heat-resistant technology, applied in the direction of filtration separation, chemical instruments and methods, separation methods, etc., can solve the problems of large elongation, high price, low strength of polytetrafluoroethylene fibers, etc.

Inactive Publication Date: 2009-10-28
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The patent No. is that CN1724111A proposes a kind of manufacture method of the high-temperature filter material that is raw material with composite fiber, mainly is with polytetrafluoroethylene fiber and other high-temperature resistant fiber (can be glass fiber, also can be polyamide-imide fiber or polyphenylene sulfide fiber) made of high-temperature filter material, the advantage is to expand the application range of the dust collector and prolong the service life, but the polytetrafluoroethylene fiber is difficult to promote because of its low strength, large elongation and high price
The filter material introduced in the patent No. CN1223161A is made of glass fiber as the main raw material by adding an appropriate amount of Nomex fiber or carbon fiber through base fabric weaving, veil manufacturing, needle felting and post-processing to form an organic film. Its high temperature resistance, corrosion resistance, wear resistance and bending resistance are improved, and its service life is more than double that of existing products. However, its main raw material is glass fiber, which has poor wrinkle resistance and cannot withstand repeated spraying by pulsed airflow for a long time. Hit, short service life

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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  • Reinforcing fabric for non-woven fabric heat-resisting filter material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A reinforcing fabric for non-woven heat-resistant filter materials, using meta-aromatic polyamide high-strength short fibers (2.2dtex*51mm) as the raw material for reinforcing fabrics, through the process of opening → carding → drawing → slubbing →Fine spinning→doubling→twisting process to produce double-ply yarn with a linear density of 531 denier. The yarn is then subjected to processes such as heat setting, warping, and weaving to produce a reinforced fabric with a warp density of 35 threads / 2.54cm, a weft density of 15 threads / 2.54cm, and a cover factor of 1155. The results of some physical properties of the reinforced fabric are shown in Table 1 below.

Embodiment 2

[0031] A reinforcing fabric for non-woven heat-resistant filter materials, using meta-aramid high-strength short fibers (content 80%) and polytetrafluoroethylene short fibers (PTFE) (content 20%) as the reinforcing fabric Raw materials, through the process of opening → carding → drawing → slubbing → fine spinning → doubling → twisting, a single-ply yarn with a linear density of 760 denier is produced as a weft yarn with a linear density of 531 denier Er's double-ply yarn is used as warp yarn. The yarn is then subjected to processes such as heat setting, warping, and weaving to produce a reinforced fabric with a warp density of 30 threads / 2.54cm, a weft density of 13 threads / 2.54cm, and a cover factor of 1052. The results of some physical properties of the reinforced fabric are shown in Table 1 below.

Embodiment 3

[0033] A kind of reinforcing fabric for non-woven fabric heat-resistant filter material, choose meta-aromatic polyamide high-strength filament fiber (400 denier-100f) as the raw material of reinforcing fabric, through warping, weaving and other processes, A reinforced fabric with a warp density of 25 threads / 2.54cm, a weft density of 16 threads / 2.54cm and a cover factor of 907 was produced. The results of some physical properties of the reinforced fabric are shown in Table 1 below.

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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Abstract

The invention discloses reinforcing fabric for a non-woven fabric heat-resisting filter material. Fibers for forming the reinforcing fabric at least contain meta-aromatic polyamide fibers. The reinforcing fabric has high strength and good size stability. The invention provides the reinforcing fabric used for the high-strength non-woven fabric heat-resisting filter material so as to prolong the service life of the filter material.

Description

Technical field: [0001] The invention relates to a reinforcing fabric for filter materials, which is a reinforcing fabric for filter materials in the field of filtration such as gas-solid and liquid-solid separation (including the filtration of industrial smoke and dust, the filtration of water treatment, etc.) . Background technique: [0002] In recent years, with the rapid development of industry, industrial pollution has become increasingly serious, which has endangered the natural environment and people's health. Flue gas dust removal is an important part of pollution control, and bag dust removal is an effective method for flue gas control. At present, the country pays more and more attention to environmental protection issues, especially in the "National People's Congress", which is listed as a key problem to be solved. From January 1, 2004, coal-fired boilers in thermal power plants and other industries will implement 50mg / m 3 The emission standard of the country, ...

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): B01D39/08
Inventor 顾立霞李星
Owner TORAY FIBER RES INST(CHINA) CO LTD
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