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Through-wall type filter element and dust removal device

A filter element and through-wall technology, which is applied in the field of through-wall filter elements, can solve the problems of high equipment investment cost, large floor space, and low density, and achieve the effect of compact structure, small floor space, and low density

Pending Publication Date: 2021-12-03
SHANGHAI GEHOPE ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bag filter and electrostatic precipitator cannot withstand the high-temperature corrosion of exhaust gas. The existing ceramic filter fiber filter tube has the advantages of low density, low resistance drop, high thermal shock resistance, erosion resistance, high precision, and easy loading of catalysts. However, when it is used, it has the problems of large area occupation and high equipment investment cost.

Method used

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  • Through-wall type filter element and dust removal device
  • Through-wall type filter element and dust removal device
  • Through-wall type filter element and dust removal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to Figure 1-Figure 3 As shown, this embodiment provides a through-wall filter element, including a filter element body 1, the filter element body 1 is a ceramic filter element or a ceramic fiber filter element, an air passage group is opened on the filter element body 1, and the air passage group includes an air inlet passage 2, The air outlet 3 arranged adjacent to the air inlet 2, the air inlet 2 and the air outlet 3 are all hollow structures with one end open and the other end blocked by a blocking member. The blocked end is located on the same side, and the blocked end of the inlet passage 2 and the open end of the air outlet passage 3 are located on the same side. Wherein, the central axis of the inlet passage 2 and the central axis of the outlet passage 3 in this embodiment are parallel to each other.

[0035] The filter element body 1 in this embodiment has a rectangular structure with a square cross section and a rectangular vertical section. By restric...

Embodiment 2

[0051] The structural difference between the through-wall filter element in this embodiment and the through-wall filter element in the embodiment is that each air channel group in this embodiment has N inlet channels 2, where N is greater than or equal to 2 is an even number; N air inlets 2 are distributed in a rectangular array of M rows×2 columns, where M=N / 2, and an air outlet 3 is arranged between two adjacent air inlets 2 in each row.

[0052] Specifically, N in this embodiment is 6, that is, each airway group includes 6 inlet channels 2 and 3 outlet channels 3 . In each airway group, six air inlets 2 are distributed in a rectangular array of 3 rows×2 columns.

[0053] When N / 2×L=2×P, and 2×P is an even number, if the first blocking plate 4 and the second blocking plate 5 are used to block the end of the inlet passage 2 and the outlet passage 3 respectively When the end is blocked, the first block plate 4 and the second block plate 5 have the same structure, that is, the...

Embodiment 3

[0057] refer to Figure 8 As shown, this embodiment provides a dust removal device, including the through-wall filter element 10 provided in the embodiment of the present invention, and also includes a housing 11, and the housing 11 is respectively provided with an air inlet 12 and an air outlet 13. The wall filter element 10 is disposed in the casing 11 , and the through-wall filter element 10 is located between the air inlet 12 and the air outlet 13 .

[0058] Specifically, the housing 11 in this embodiment is provided with a support grid 14 and a sealing partition 15 sequentially from bottom to top. The support grid 14 and the sealing partition 15 divide the housing 11 into rows from bottom to top. Ash chamber 16, raw air chamber 17, and clean air chamber 18.

[0059] Specifically, the air inlet 12 in this embodiment is located at the lower part of the side wall of the housing 11 and communicates with the ash discharge chamber 16 , and the air outlet 13 is located at the u...

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Abstract

The invention provides a through-wall type filter element and a dedusting device. The through-wall type filter element comprises a filter element body, the filter element body is provided with an air channel set, and the air channel set comprises an air inlet channel and an air outlet channel adjacent to the air inlet channel; wherein the air inlet channel and the air outlet channel are each of a hollow structure, one end of each hollow structure is open, the other end of each hollow structure is blocked through a blocking piece, the open end of the air inlet channel and the blocking end of the air outlet channel are located on the same side, and the blocking end of the air inlet channel and the open end of the air outlet channel are located on the same side. The through-wall type filter element disclosed by the invention not only has the characteristics of low density, low resistance drop, high thermal shock resistance, scouring resistance, high precision, good back-flushing cleaning effect, easiness in loading a catalyst and the like, but also has a higher filtering specific surface area which is about 5-6 times that of an existing circular tube type ceramic filter tube, so that the occupied area and the equipment investment cost are reduced; meanwhile, the dust removal efficiency and effect are greatly improved, and wide application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of gas dust removal and purification, in particular to a through-wall filter element. Background technique [0002] With the rapid development of industrialization, the exhaust gas discharged into the atmosphere is showing a high growth trend every year. These exhaust gases will not only cause the temperature to rise, but also contain a large number of fine impurity particles of dust and harmful chemicals. Therefore, the emissions of these gases Dust removal and purification treatment has become the key to alleviating environmental pollution, greenhouse effect, energy crisis and many other problems. [0003] At present, the relatively mature gas dust removal and purification technologies mainly include: bag dust removal, electrostatic dust removal and silicon carbide ceramic membrane technologies. The existing bag filter and electrostatic precipitator cannot withstand the high-temperature corrosion of exhau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/24B01D46/00
CPCB01D46/2418
Inventor 李靖菀章新伟吴凤平
Owner SHANGHAI GEHOPE ENVIRONMENTAL PROTECTION
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