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Ultra-high temperature filter material

A technology of ultra-high temperature and filter material, applied in the direction of filtration separation, chemical instruments and methods, separation methods, etc., can solve the problems of short service life, poor filtration accuracy, poor heat resistance, etc., and achieve good oxidation resistance and stable chemical properties , high temperature resistance effect

Inactive Publication Date: 2019-01-22
江苏明晶布业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device relies on the layer of fine dust particles trapped on the filter material for separation, which has problems such as poor heat resistance, low service life, and poor filtration accuracy.
[0003] The patent with the application number CN201020628351.4 discloses a high-performance dust removal filter material. Surface layers are respectively arranged on the upper and lower surfaces of the base cloth, and a coating or coating layer is arranged on the outer surface of one side layer. Although this patent Good filtering effect and low cost, but poor heat resistance and short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An ultra-high temperature filter material, comprising a base cloth layer, on which a pre-oxidized composite silk layer is sequentially arranged, and the base cloth layer is made of fiber material and a surfactant; the weight percentage of the fiber material is as follows : 15% polytetrafluoroethylene fiber, 21% polyimide fiber, 16% polym-phenylene isophthalamide fiber, 42% pre-oxygenated silk fiber, 6% polyolefin elastic fiber;

[0018] The surfactant is composed according to the weight percentage of the following raw materials: PTFE emulsion 28%, preservative 12%, waterproofing agent 8%, coupling agent 5%, polyvinyl alcohol 5%, water 42%.

[0019] Mix polytetrafluoroethylene fibers, polyimide fibers, polym-phenylene isophthalamide fibers, pre-oxidized silk fibers, and polyolefin elastic fibers uniformly in proportion, then perform heat cleaning treatment at 550 degrees, and then put The fibrous filter material after the thermal cleaning treatment is impregnated with a ...

Embodiment 2

[0021] An ultra-high temperature filter material, comprising a base cloth layer, on which a pre-oxidized composite silk layer is sequentially arranged, and the base cloth layer is made of fiber material and a surfactant;

[0022] The percentage by weight of the fiber material is as follows: 16% of polytetrafluoroethylene fiber, 21% of polyimide fiber, 17% of polym-phenylene isophthalamide fiber, 41% of pre-oxidized silk fiber, 5% of polyolefin elastic fiber %;

[0023] The surfactant is composed according to the weight percentage of the following raw materials: PTFE emulsion 26%, preservative 14%, waterproofing agent 7%, coupling agent 6%, polyvinyl alcohol 6%, water 41%.

[0024] Mix polytetrafluoroethylene fiber, polyimide fiber, polym-phenylene isophthalamide fiber, pre-oxygenated silk fiber and polyolefin elastic fiber according to the proportion, then perform heat cleaning treatment at 650 degrees, and then put The fibrous filter material after the thermal cleaning treat...

Embodiment 3

[0026] An ultra-high temperature filter material, comprising a base cloth layer, on which a pre-oxidized composite silk layer is sequentially arranged, and the base cloth layer is made of fiber material and a surfactant;

[0027] The percentage by weight of the fiber material is as follows: 15% of polytetrafluoroethylene fiber, 20% of polyimide fiber, 15% of polym-phenylene isophthalamide fiber, 43% of pre-oxidized silk fiber, 7% of polyolefin elastic fiber %;

[0028] The surfactant is composed according to the weight percentage of the following raw materials: 28% tetrafluoro emulsion, 12% preservative, 6% waterproof agent, 5% coupling agent, 5% polyvinyl alcohol, and 44% water.

[0029] Mix polytetrafluoroethylene fibers, polyimide fibers, polym-phenylene isophthalamide fibers, pre-oxidized silk fibers, and polyolefin elastic fibers uniformly in proportion, then perform heat cleaning treatment at 600 degrees, and then put The fibrous filter material after the thermal cleani...

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 an ultra-high temperature filter material, and particularly relates to the field of filter material production. The ultra-high temperature filter material comprises a base clothlayer, wherein the base cloth layer is sequentially provided with a pre-oxygen composite wire layer, the base cloth layer is prepared from a fiber material and a surfactant by processing; the fiber material comprises the following raw materials in percentage by weight: 15-25% of polytetrafluoroethylene fiber, 20-30% of polyimide fiber, 15-20% of polyisophthaloyl metaphenylene diamine fiber, 40-50% of pre-oxidized fiber, and 5-25% of polyolefin elastic fiber, and the surfactant comprises the following raw materials in percentage by weight: 25-35% of a polytetrafluoroethylene emulsion, 10-15% of a preservative, 6-10% of a waterproof agent, 2-6% of a coupling agent, 4 to 6% of polyvinyl alcohol and the balance of water. The ultra-high temperature filter material has the advantages of high temperature resistance, corrosion resistance and long service life.

Description

technical field [0001] The invention belongs to the field of filter material production, and in particular relates to an ultra-high temperature filter material. Background technique [0002] In the process of industrial production, a large amount of dust is released, and air pollution has become an increasingly serious global problem. Electrostatic precipitator used to be the main dust removal equipment in my country's coal-fired power plants and cement plants, but its removal rate for fine dust is low. The device relies on the layer of fine dust particles trapped on the filter material for separation, which has problems such as poor heat resistance, low service life, and poor filtration accuracy. [0003] The patent with the application number CN201020628351.4 discloses a high-performance dust removal filter material. Surface layers are respectively arranged on the upper and lower surfaces of the base cloth, and a coating or film layer is arranged on the outer surface of o...

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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IPC IPC(8): B01D39/14
CPCB01D39/14
Inventor 蔡明贤
Owner 江苏明晶布业股份有限公司
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