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Gas filtering device

A filtration device and gas technology, which are applied in the fields of dispersed particle filtration, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of reducing the filtration efficiency of the filter element and increasing the difficulty of backflushing.

Inactive Publication Date: 2015-07-22
CHENGDU INTERMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the raw gas enters the filter element continuously from the raw gas chamber, the purified gas filtered through the filter element enters the purified gas chamber without interruption. Blowing gas causes resistance, which increases the difficulty of blowback. The dust blown off the surface of the filter element is difficult to settle to the ash chamber due to the above resistance. Dust with smaller particle size will even clog the pores of the filter element, which will eventually reduce the filtration efficiency of the filter element

Method used

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  • Gas filtering device

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Embodiment Construction

[0014] The gas filtering device of the present invention comprises a filtering device housing 110, and the filtering device housing 110 is sequentially divided into an air outlet chamber 210, an original air chamber 220 and a clean air chamber 230 from top to bottom, and the air outlet chamber 210 and the clean air chamber 230 Separated by a diaphragm 310, the clean air chamber 230 is separated from the original air chamber 220 by an orifice 320, and an ash chamber 240 is also provided below the original air chamber 220, and the ash chamber 240 The lower end is provided with an ash discharge port 241, and the filter device housing 110 is provided with an air outlet 111 communicating with the air outlet chamber 210 and an air inlet 112 communicating with the original air chamber, and three filter element groups are provided below the orifice plate 320 120, the top of each filter element group 120 is provided with a blowback device 410, and the blowback device 410 includes a vent...

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Abstract

The invention discloses a gas filtering device. The gas filtering device comprises a filtering device shell and a pore plate, wherein the pore plate is arranged inside the filtering device shell and partitions the filtering device shell into a lower raw gas cavity and an upper pure gas cavity; at least two filter element groups are arranged below the pore plate; a back-blowing device connected with a back-blowing gas source is arranged above each filter element group; the pure gas cavity is partitioned into at least two independent chambers which are isolated from each other; at least one back-blowing device is arranged in each independent chamber; each independent chamber is provided with a valve opening used for discharging pure gas; a control mechanism used for controlling each valve opening to be opened and closed is arranged on the valve opening. The back-blowing resistance is overcome through the structure, and meanwhile, the gas filtering device keeps working continuously.

Description

technical field [0001] The invention relates to a gas filter device, in particular to a gas filter device capable of off-line backflushing. Background technique [0002] When the gas filter is filtering, the dust particles will gradually form a layer of filter cake on the surface of the filter element. In order to remove the dust on the surface of the filter element, the gas back blowing method is usually used to blow the surface of the filter element with the help of external high-pressure gas. At present, the structure of the gas filter device includes a gas filter device housing and a filter element group arranged in the gas filter device housing, and the gas filter device housing is divided into an upper clean gas chamber and a lower raw gas chamber ("raw gas chamber") by an orifice plate. "refers to the gas before filtration, and "clean gas" refers to the gas after filtration), the lower part of the original gas chamber is provided with a settling chamber for dust to se...

Claims

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Application Information

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IPC IPC(8): B01D46/00B01D46/42
Inventor 高麟汪涛刘兵
Owner CHENGDU INTERMENT TECH
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