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Method for preparing antistatic filter material

An antistatic and filter material technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of limited filter material application conditions, limited temperature and corrosion tolerance, deflagration, etc., and achieve expanded application conditions , low surface and bulk resistance, good tolerance

Inactive Publication Date: 2013-09-04
南京际华三五二一环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when there is high-risk (flammable and explosive) dust in the comprehensive treatment of coal-fired boilers, steel and other industries, the risk of deflagration or even explosion will be caused due to the accumulation of static electricity in the filter material.
Nowadays, the method of metal ion complex fiber blending is mostly used for the processing of antistatic filter materials. Because the antistatic fibers used in this method have limited tolerance to temperature and corrosion, the application conditions of the filter material are greatly limited.

Method used

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  • Method for preparing antistatic filter material

Examples

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example 1

[0021] A preparation method of antistatic filter material, comprising the following steps:

[0022] 1) Preparation of plain felt

[0023] The glass fiber, aramid fiber and polyimide fiber are mixed in a ratio of 40:5:1, and the weight is 460g / m after opening, mixing, carding, laying and netting. 2 Glass fiber base cloth and needle punching, the final total weight is 860g / m 2 Composite filter material plain felt.

[0024] 2) Configuration of treatment agent

[0025] The mass percentage formula of the treatment agent is: polytetrafluoroethylene emulsion 8%, acrylate emulsion 8%, silicone oil 3.2%, water 80.8%.

[0026] After mixing the above materials evenly, add them into the bucket, mix the nano-scale graphene powder and the above-mentioned treatment agent in a ratio of 1:4, and then stir the glue solution through a grinder until it is evenly mixed to obtain a mixed solution. figure 1 It is a schematic diagram of the mixed solution glue tank in the present invention. ...

example 2

[0033] Another preparation method of antistatic filter material comprises the following steps:

[0034] 1) Preparation of plain felt

[0035] Preparation of plain felt: The polyphenylene sulfide fiber is opened, mixed, carded, laid, and combined through a series of non-woven equipment, and the weight is 127g / m 2 The polyphenylene sulfide fiber base cloth is needle-punched to obtain a total grammage of 550g / m 2 Polyphenylene sulfide cellulose felt. During singeing treatment, adjust the liquefied gas flow rate to 1.8-2.2, and observe the flame color as blue short flame. The speed of the main machine is 20~25m / min, and the treated felt surface should have no short fiber fluff.

[0036] 2) Configuration of treatment agent

[0037] The mass percentage formula of the treatment agent is: polytetrafluoroethylene emulsion 6%, acrylate emulsion 10%, water 84%.

[0038] After mixing the above materials evenly, add them to the bucket, dilute the graphite milk and water at a ratio of ...

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Abstract

The invention discloses a method for preparing an antistatic filter material. The method includes the steps: preparing a plain felt; preparing treatment agents; treating after dipping; and drying to obtain the antistatic filter material. According to the method, the plain felt of the filter material is dipped in glue liquor with nano graphite powder, so that low resistance is formed inside the filter material and on the surface of the filter material. The antistatic filter material is low in surface and body resistance and fine in temperature and corrosion resistance, and the application condition of the filter material is greatly expanded. Electrostatic accumulation of the filter material in the use process can be effectively reduced, and the risk of detonation and even explosion of flammable and explosive products such as pulverized coal and coal gas in the filtering process due to electrostatic discharge sparking is avoided.

Description

technical field [0001] The invention relates to the technical field of a filter material, in particular to a preparation method of an antistatic filter material. Background technique [0002] Nowadays, with the intensification of air pollution problems and the enhancement of human awareness of environmental protection, people are paying more and more attention to speeding up the research on comprehensive air pollution control technologies. Therefore, when there is high-risk (flammable and explosive) dust in the comprehensive treatment of coal-fired boilers, steel and other industries, the risk of deflagration or even explosion will be caused due to the accumulation of static electricity in the filter material. At present, the method of metal ion complex fiber blending is mostly used for processing antistatic filter materials. Because the antistatic fibers used in this method have limited tolerance to temperature and corrosion, the application conditions of the filter materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/4382B01D39/14D06M15/263D06M15/256D06M15/643D06M11/74
Inventor 于淼涵李晓兰俞应珍隋鑫何文荣
Owner 南京际华三五二一环保科技有限公司
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