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Filter material suitable for flue gas dust removal, manufacture method and treating liquid thereof

A manufacturing method and technology for treating liquid, which are applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of short service life of polyester filter materials, and achieve the effects of excellent acid resistance, improved service life and smooth surface.

Inactive Publication Date: 2009-10-28
ANJI SHENGFENG FIBERGLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical defect of the short service life of the above-mentioned polyester filter material, one object of the present invention is to provide a treatment liquid for the finishing of flue gas dust removal filter material, and the second purpose of the present invention is to provide a kind of above-mentioned treatment liquid Treated filter material, the third purpose of the present invention is to provide a filter material manufacturing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The treatment liquid used for finishing flue gas dust removal filter material is composed of the following components based on the total weight of the treatment liquid as 100%:

[0033] PTFE emulsion 12% polyacrylate 8%;

[0034] Waterproofing agent 20% silane coupling agent 1.5%;

[0035] Color paste 0.8% and the balance is deionized water.

[0036] Above-mentioned polyacrylic resin, polytetrafluoroethylene emulsion, waterproofing agent are all market purchases.

[0037] The above-mentioned preparation method of the treatment liquid used for flue gas dust removal and filter material finishing, the steps of the method are as follows: slowly add polyacrylate into the polytetrafluoroethylene emulsion, stir while adding, then add the water repellent, and add Pay attention to stirring evenly, then add enough deionized water, then add the silane coupling agent to the prepared semi-finished product, keep stirring, and finally add the color paste to adjust the treatment agen...

Embodiment 2

[0039] The treatment liquid used for finishing flue gas dust removal filter material is composed of the following components based on the total weight of the treatment liquid as 100%:

[0040] PTFE emulsion 18% polyacrylate 6%;

[0041] Waterproofing agent 18% silane coupling agent 2.0%;

[0042] Color paste 1.5% balance is deionized water.

[0043] Above-mentioned polyacrylic resin, polytetrafluoroethylene emulsion, waterproofing agent are all market purchases. The preparation method of the above-mentioned treatment liquid used for finishing the flue gas dust removal filter material is as described in Example 1.

Embodiment 3

[0045] The treatment liquid used for finishing flue gas dust removal filter material is composed of the following components based on the total weight of the treatment liquid as 100%:

[0046] PTFE emulsion 15% polyacrylate 9%;

[0047] Waterproofing agent 16% silane coupling agent 1.0%;

[0048] Color paste 0.8% and the balance is deionized water.

[0049] Above-mentioned polyacrylic resin, polytetrafluoroethylene emulsion, waterproofing agent are all market purchases. The preparation method of the above-mentioned treatment liquid used for finishing the flue gas dust removal filter material is as described in Example 1.

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Abstract

The invention relates to a filter material suitable for flue gas dust removal, in particular to treating liquid used for flue gas dust removal and filter material finishing in ceramic industry and a filter material finished with the treating liquid. The treating liquid used for flue gas dust removal and filter material finishing consists of the following components of 10-20 percent of polytetrafluoroethylene latex; 5-10 percent of polyacrylate, 10-25 percent of waterproof agent; 1.0-2.0 percent of silane coupling agent, 0.5-2.0 percent of color paste and the balance of de-ionized water. The invention also discloses a filter material treated by the treating liquid. The surface of the filter material treated by the treating liquid has an organic protective film which has the property of resisting corrosion of concentrated sulfuric acid, has excellent acid resistance, good alkali resistance, water repellency and oil repellency and smooth surface, and is easy for ash removal. In the application of the filer material to the dust removal in the ceramic industry, the service life of the filer material is greatly prolonged up to over 10 months which is 3 times of that of a terylene filter material; and the price of the filter material only rises by about 10 percent on the basis of terylene needle-punched felt filter material; therefore, the filer material is a fairly ideal material for the dust removal and flue gas filtration in the ceramic industry.

Description

technical field [0001] The invention relates to a filter material suitable for flue gas dust removal, in particular to a treatment liquid used for finishing the flue gas dust removal filter material in the ceramic industry and a filter material sorted by the treatment liquid. Background technique [0002] At present, the domestic ceramic industry is developing rapidly, and the accompanying exhaust gas filtration treatment in this industry has become an urgent problem to be solved. The flue gas of the drying tower in the ceramic industry is characterized by SO X High, high moisture content, high viscosity dust, working temperature between 65 ~ 120 ℃. At present, the commonly used filter materials are mainly polyester filter materials such as polyester needle felt, various polyester woven fabrics 729, 208 flannelette, etc. However, because polyester filter material is easy to hydrolyze, and its acid resistance is not very good, it is especially soluble in concentrated sulfur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08
Inventor 王礼国林先李雪莲
Owner ANJI SHENGFENG FIBERGLASS
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