A granular bed dust collector

A granular bed filter and dust collector technology, which is applied in the direction of dispersed particle separation, chemical instruments and methods, combined devices, etc., can solve the problems of increased pressure drop, unsatisfactory filtering and dust removal effect, and increased cost, so as to reduce the burden of filtration, Good filter and dust removal effect

Active Publication Date: 2018-09-11
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle bed filter dust collector has the following problems: when the dust concentration of the dust-containing gas fed into the dust-containing gas inlet is small, the filter dust removal effect of the particle bed filter dust collector is relatively good; When the dust concentration of the imported dusty gas is relatively high, the dust removal effect of the particle bed filter dust collector is not ideal. In order to achieve a better filter dust removal effect, it is usually necessary to install a pre-dust collector upstream of the particle bed filter dust collector , but another pre-dust collector will not only increase the cost, but also increase the pressure drop

Method used

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  • A granular bed dust collector
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Experimental program
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Effect test

Embodiment 1

[0032] A kind of granular bed deduster that present embodiment proposes, such as Figure 1a As shown, it includes an outer shell 1 with a circular cross section and a six-layer particle bed filter arranged vertically inside the outer shell 1. The upper part of the outer shell 1 is provided with an upstream air intake pipe (not shown in the figure) outlet) connected to the dust-containing gas inlet 11, the lower part of the outer casing 1 is provided with a dust outlet 12, such as Figure 1b Each layer of the granular bed filter shown includes two filter units 2 with circular arc-shaped cross-sections. The two filter units 2 are symmetrically arranged on both sides of the outer casing 1, and between the opposite sides of the two symmetrically arranged filter units 2. There is a distance to form a separation space, the separation space and the inner wall of the outer shell 1 enclose a dust pre-separation chamber 3, the dust pre-separation chamber 3 is located between two symmetri...

Embodiment 2

[0037] A kind of granular bed deduster that present embodiment proposes, such as Figure 2a with Figure 2b As shown, it is the same as other parts of the granular bed dust collector of embodiment one, the difference is that: the cross section of the outer shell 1 is rectangular; the cross section of the filter unit 2 is also rectangular; each layer of granular bed filter includes Four filter units 2 with rectangular cross-sections, two filter units 2 are arranged on one side of the outer shell 1, and the other two filter units 2 are symmetrically arranged on the other side, between the opposite sides of the filter units 2 symmetrically arranged There is a distance to form a separation space, and the separation space and the inner wall of the outer casing 1 enclose the dust pre-separation chamber 3; each filter unit 2 at the bottom layer is no longer separated from filter units with a smaller filtration area.

Embodiment 3

[0039] A kind of granular bed deduster that present embodiment proposes, such as Figure 3a As shown, it includes an outer casing 1 with a circular cross-section and a six-layer particle bed filter arranged vertically inside the outer casing 1. The upper part of the outer casing 1 is provided with a dust-containing gas that communicates with the upstream air intake pipe. Inlet 11, the bottom of outer casing 1 is provided with dust outlet 12, as Figure 3b Each layer of granular bed filter shown includes a filter unit 2 with a semicircular cross section. The other side of the outer casing 1 is surrounded by a dust pre-separation chamber 3, which is located on one side of the filter unit 2, and each filter unit 2 has an independent dust-containing air vent 21 and an independent clean air vent 22 , the entrance of the dust pre-separation chamber 3 communicates with the dust-containing gas inlet 11, the outlet of the dust pre-separation chamber 3 communicates with the dust discha...

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Abstract

The invention discloses a particle bed dust collector, which comprises an outer casing and at least one layer of particle bed filters vertically arranged inside the outer casing, the upper part of the outer casing is provided with a dust-containing gas inlet, and the lower part of the outer casing is A dust discharge port is provided, and each layer of granular bed filter includes at least one filter unit, each filter unit has a dust-containing gas vent and a clean gas vent, and the characteristic is that a dust pre-separation chamber is also provided inside the outer shell, and the dust pre-separation chamber is The separation chamber is connected to the dust-containing gas inlet and the dust discharge outlet. The dust pre-separation chamber is equipped with an inertial separation deflector. The dust-containing gas entering the dust pre-separation chamber is pre-separated by the inertial separation deflector and then enters through the dust-containing gas vent. In the filter unit; the advantage is that most of the dust larger than 10 microns is pre-separated under the action of the inertial separation deflector, which greatly reduces the filtration burden of the filter unit, so it can be used for dust removal and filtration of dusty gas with a large dust concentration. Dust removal effect is good.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a particle bed dust collector. Background technique [0002] The granular bed filter dust collector adopts high temperature resistant granular filter material, which has unique advantages in the field of high temperature gas dust removal. For example, the invention patent "a granular bed filter dust collector" announced by China (application date is January 31, 2007, publication number is CN101036846A, patent number is ZL200710067109.7), which includes an outer shell and a shell set along the height direction There is at least one layer of filtering device in the body. The upper part of the outer casing is provided with a dust-containing gas inlet, and the lower end of the outer casing is provided with a dust outlet. The filtering device is equipped with an independent gas reversing device, which is connected to a clean gas main pipe and The back blowing air main pipe is characterized in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D45/04
CPCB01D45/04B01D50/20
Inventor 杨国华
Owner NINGBO UNIV
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