Compound filter felt

A technology of composite filter screen and filter felt, which is applied in the polymer field, can solve the problems of filter felt damage, short service life, weak ability to bind dust, etc., and achieve the effect of prolonging service life, reducing production cost and good filtering effect

Inactive Publication Date: 2016-12-14
何县香
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many filter mats are used in many places for filtration to prevent excessive dust from entering the air and polluting the environment, especially in some steel, metallurgical and chemical enterprises. These enterprises need to filter the ind

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A composite filter felt, comprising a base cloth layer and a filter mesh layer, the base cloth layer adopts a metal mesh frame and an inner mesh fiber layer, and the base cloth layer and the filter mesh layer are both provided with a polytetrafluoroethylene film Floor.

[0033] The metal mesh frame adopts stainless steel metal mesh.

[0034] The inner mesh fiber layer adopts glass fiber yarn.

[0035] The filter mesh layer is made by uniformly mixing microporous foamed PET fiber, glass fiber, polyphenylene sulfide fiber and aramid fiber.

[0036] The method for preparing the composite filter felt includes the following steps:

[0037] Step 1. Coat the surface of the inner mesh fiber layer in the base fabric layer with the adhesive clear liquid to form an adhesive layer;

[0038] Step 2: Paste a filter mesh layer on the adhesive layer, flatten and compact, to obtain a composite filter;

[0039] Step 3. Soak the composite filter in the polytetrafluoroethylene dispersion and let it d...

Embodiment 2

[0054] A composite filter felt, comprising a base cloth layer and a filter mesh layer, the base cloth layer adopts a metal mesh frame and an inner mesh fiber layer, and the base cloth layer and the filter mesh layer are both provided with a polytetrafluoroethylene film Floor.

[0055] The metal mesh frame adopts stainless steel metal mesh.

[0056] The inner mesh fiber layer adopts glass fiber yarn.

[0057] The filter mesh layer is made by uniformly mixing microporous foamed PET fiber, glass fiber, polyphenylene sulfide fiber and aramid fiber.

[0058] The method for preparing the composite filter felt includes the following steps:

[0059] Step 1. Coat the surface of the inner mesh fiber layer in the base fabric layer with the adhesive clear liquid to form an adhesive layer;

[0060] Step 2: Paste a filter mesh layer on the adhesive layer, flatten and compact, to obtain a composite filter;

[0061] Step 3. Soak the composite filter in the polytetrafluoroethylene dispersion and let it d...

Embodiment 3

[0076] A composite filter felt, comprising a base cloth layer and a filter mesh layer, the base cloth layer adopts a metal mesh frame and an inner mesh fiber layer, and the base cloth layer and the filter mesh layer are both provided with a polytetrafluoroethylene film Floor.

[0077] The metal mesh frame adopts stainless steel metal mesh.

[0078] The inner mesh fiber layer adopts glass fiber yarn.

[0079] The filter mesh layer is made by uniformly mixing microporous foamed PET fiber, glass fiber, polyphenylene sulfide fiber and aramid fiber.

[0080] The method for preparing the composite filter felt includes the following steps:

[0081] Step 1. Coat the surface of the inner mesh fiber layer in the base fabric layer with the adhesive clear liquid to form an adhesive layer;

[0082] Step 2: Paste a filter mesh layer on the adhesive layer, flatten and compact, to obtain a composite filter;

[0083] Step 3. Soak the composite filter in the polytetrafluoroethylene dispersion and let it d...

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PUM

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Abstract

The invention discloses a compound filter felt. The filter felt comprises a base cloth layer and a filter screen yarn layer, wherein the base cloth layer employs a metal mesh framework and an internal network fibrous layer, and the base cloth layer and the filter screen yarn layer are separately provided with a polytetrafluoroethylene film. The tensile strength of the compound filter felt is substantially improved, the service life of the filter felt is prolonged, raw material loss is reduced, and the production cost is reduced.

Description

Technical field [0001] The invention belongs to the field of polymer technology, and specifically relates to a composite filter felt. Background technique [0002] Many filter felts are used in many places for filtering to prevent too much dust from entering the air and polluting the environment, especially in some steel, metallurgical and chemical companies. These companies need to filter industrial waste gas. At present, many production filters Felt companies use ordinary needle punching to produce filter felts, which often results in damage to the filter felts during use, weak dust adhesion and short service life. Summary of the invention [0003] The purpose of the present invention is to provide a composite filter felt. The tensile strength of the composite filter felt provided by the present invention is greatly improved, the service life of the filter felt is further extended, the loss of raw materials is reduced, and the production cost is reduced. [0004] A composite filt...

Claims

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Application Information

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IPC IPC(8): B01D39/18B01D39/20B32B3/12B32B15/02B32B15/14B32B27/12B32B27/02B32B17/02B32B17/06B32B7/12B32B37/12
CPCB01D39/2017B01D39/1607B01D2239/0216B32B3/12B32B5/08B32B5/26B32B7/12B32B15/02B32B15/14B32B17/061B32B27/12B32B37/12B32B2260/021B32B2260/046B32B2262/02B32B2262/0269B32B2262/0284B32B2262/101B32B2307/304B32B2307/714B32B2307/73
Inventor 何县香
Owner 何县香
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