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Low-cost metal filter bag for dust removal

A metal filter bag, low-cost technology, applied in filtration separation, dispersed particle filtration, transportation and packaging, etc., can solve the problem of high cost, achieve the effect of low production cost, good coating uniformity, and easy wide application

Pending Publication Date: 2020-09-11
ZHONGDIAN HUACHUANG ELECTRIC POWER TECH RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-cost metal filter bag for dust removal in order to overcome the defect of high cost caused by the use of 316L stainless steel for the metal filter bag in the above-mentioned prior art

Method used

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  • Low-cost metal filter bag for dust removal
  • Low-cost metal filter bag for dust removal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 with figure 2 As shown, the present embodiment provides a low-cost metal filter bag 1 for dust removal, including a fine filter layer 11 and a coarse filter layer 12, the fine filter layer 11 is located inside the coarse filter layer 12, and the fine filter layer 11 is a filter structure. The coarse filter layer 12 is a supporting and air-permeable structure, the fine filter layer 11 includes 316L stainless steel metal fiber felt, and the coarse filter layer 12 includes 446 stainless steel or high temperature resistant carbon steel metal fiber felt. The metal filter bag for dust removal is a cascade filter material structure. The high temperature carbon steel metal fiber felt is Q235 metal fiber felt or Q195 metal fiber felt. The thickness of the coarse filter layer 12 is greater than the thickness of the fine filter layer 11 .

[0026] In terms of function, the fine filter layer is mainly used as a filter layer, and the coarse filter layer is used ...

Embodiment 2

[0033] This embodiment is basically the same as Embodiment 1, except that the coarse filter layer uses 446 stainless steel metal fiber felt with a relatively low price as the substrate, and the thickness ratio of the fine filter layer to the coarse filter layer is 1:2.

Embodiment 3

[0035] This embodiment is substantially the same as Embodiment 1, except that the coarse filter layer uses Q235 metal fiber felt which is relatively cheap as the substrate, and the thickness ratio of the fine filter layer to the coarse filter layer is 2:3.

[0036] Example 3

[0037] This embodiment is basically the same as Embodiment 1, except that the coarse filter layer uses Q195 metal fiber felt with a relatively low price as the substrate, and the thickness ratio of the fine filter layer to the coarse filter layer is 1:3.

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Abstract

The invention relates to a low-cost metal filter bag for dust removal. The metal filter bag comprises a fine filtering layer and a coarse filtering layer, wherein the fine filtering layer is located on the inner side of the coarse filtering layer, the fine filtering layer is of a filtering structure, the coarse filtering layer is of a supporting and ventilating structure, the fine filtering layercomprises 316L stainless steel metal fiber felt, and the coarse filtering layer comprises 446 stainless steel or high-temperature-resistant carbon steel metal fiber felt. Compared with the prior art,the dust removal efficiency is guaranteed, the production cost of the metal filter bag is greatly reduced, and wide application is facilitated.

Description

technical field [0001] The invention relates to the field of metal filter bags for dust removal, in particular to low-cost metal filter bags for dust removal. Background technique [0002] Filter bag dust removal facilities have the advantages of high dust removal efficiency, simple structure, and stable performance. However, due to the physical properties of the filter bag itself, its working temperature is relatively low, and the maximum temperature resistance limit does not exceed 200 ° C, which limits the application range of filter bag dust removal facilities. . On the basis of the high dust removal efficiency and stable performance of the bag filter, the metal filter bag has the advantages of anti-oxidation, anti-vulcanization, high strength, easy to clean, and wide working temperature range (200-800 ° C), which has become a current research hotspot. However, in order to ensure its strength and corrosion resistance, metal filter bags are usually made of 316L stainless...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/02B01D39/10
CPCB01D46/023B01D39/10B01D46/62
Inventor 许勇毅刘政辉刘艇安孟涛邹鹏邢小林
Owner ZHONGDIAN HUACHUANG ELECTRIC POWER TECH RES
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