Composite hot melting filter bag and preparation process thereof

A hot-melt and filter bag technology, applied in the field of filter bags, can solve the problems affecting the size of filter bags, breakage and other problems, and achieve the effect of avoiding ash leakage and proportion

Active Publication Date: 2021-12-10
JIANGSU DINGSHENG FILTER BAG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a composite hot-melt filter bag and its preparation process to solve the problem of free end breaking and affecting the size of the filter bag in the prior art

Method used

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  • Composite hot melting filter bag and preparation process thereof
  • Composite hot melting filter bag and preparation process thereof
  • Composite hot melting filter bag and preparation process thereof

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] see Figure 6 , in an embodiment of the present invention, a composite hot-melt filter bag includes a woven material layer 1 and a non-woven material layer 2 compounded on the front surface of the woven material layer 1, the non-woven material layer 2 adopts a PRFE microporous membrane, and the woven material layer 1 using polyester;

[0031] Continue to refer to Figure 6 In order to make the compounding of the woven material layer 1 and the nonwoven...

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Abstract

The invention relates to a composite hot-melt filter bag and a preparation process thereof. The composite hot-melt filter bag comprises a woven material layer and a non-woven material layer compounded on the front surface of the woven material layer, one end of the non-woven material layer is a free end, and a hot-melt part with the length protruding out of the non-woven material layer is arranged at the end, close to the free end, of the woven material layer, and a non-connecting part is arranged between the free end and the hot-melt part. The non-connecting part is formed by one end of the non-woven material layer and the woven material layer, and then the end of the non-woven material layer and the hot-melt part can walk towards different positions, namely the free end is compounded with the inner surface of the fixed end, and the hot-melt part is compounded with the outer surface of the compound end, so that on one hand, the free end does not generate a damage part, dust leakage can be avoided, on the other hand, the free end does not need to be positioned on the outer surface of the compounded end, so that the free end does not occupy the length of the hot-melt part, the proportion of the hot-melt part is prevented from being increased, and the condition that the size of the filter bag is influenced is avoided.

Description

technical field [0001] The invention relates to the technical field of filter bags, in particular to a composite hot-melt filter bag and a preparation process thereof. Background technique [0002] At present, the environmentally friendly dust filter bags used in coal-fired power plants and waste incineration plants generally use polyester, p-tetrapolyphenylene sulfide needle felt, aramid needle felt or glass fiber woven fabric or polyester spunbonded non-woven fabric. Waiting for production. In order to avoid dust leakage caused by pinholes caused by needle sewing, the existing hot-pressed filter bags use hot-pressing composite methods instead of needle sewing; [0003] The structure of hot-melt filter bag in the prior art is as figure 1 As shown, "including the filter bag body, the filter bag body includes a woven material layer 1, and a non-woven material layer 2 compounded on the outer surface of the woven material layer 1 through a thermal composite process, and the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/02
CPCB01D46/0001B01D46/02
Inventor 马皓凉
Owner JIANGSU DINGSHENG FILTER BAG CO LTD
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