CN108325281A - A kind of denitrating flue gas multistage filtering dust-extraction unit - Google Patents

A kind of denitrating flue gas multistage filtering dust-extraction unit Download PDF

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Publication number
CN108325281A
CN108325281A CN201810263637.8A CN201810263637A CN108325281A CN 108325281 A CN108325281 A CN 108325281A CN 201810263637 A CN201810263637 A CN 201810263637A CN 108325281 A CN108325281 A CN 108325281A
Authority
CN
China
Prior art keywords
filter
dust
flue gas
extraction unit
multistage filtering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810263637.8A
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Chinese (zh)
Inventor
朱全山
周广志
胡宏丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Olreth Environmental Protection Technology Co Ltd
Original Assignee
Jiangsu Olreth Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Olreth Environmental Protection Technology Co Ltd filed Critical Jiangsu Olreth Environmental Protection Technology Co Ltd
Priority to CN201810263637.8A priority Critical patent/CN108325281A/en
Publication of CN108325281A publication Critical patent/CN108325281A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002Casings; Housings; Frame constructions
    • B01D46/0005Mounting of filtering elements within casings, housings or frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002Casings; Housings; Frame constructions
    • B01D46/001Means for connecting filter housings to supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04Cleaning filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2267/00Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
    • B01D2267/30Same type of filters

Abstract

The invention belongs to gas denitrifying technology field, more particularly to a kind of denitrating flue gas multistage filtering dust-extraction unit.A kind of denitrating flue gas multistage filtering dust-extraction unit, air inlet pipe connect filter element, dust removing units and sewage unit with muffler;The filter element includes at least thick grade filter device, thin grade filter device dual stage filter apparatus, and the dust removing units include sonic soot blowing device and bunker wall vibration device, and sonic soot blowing device is located at filter device side, and bunker wall vibration device is located at below filter device;The sewage unit includes ash bucket and star-shaped dust-discharging valve, and ash bucket is connected to below bunker wall vibration device, and the lower end of ash bucket connects star-shaped dust-discharging valve.Design effect of the present invention is reasonable, simple in structure, and filter plant is replaced convenient;It ensure that filtrating smoke dust effect;By dual stage filter apparatus, deleterious particle, sonic soot blowing device and bunker wall vibration device are filtered out, among so that deleterious particle is fallen within ash bucket, passes through star-shaped dust-discharging valve removal deleterious particle.

Description

A kind of denitrating flue gas multistage filtering dust-extraction unit
Technical field
The invention belongs to gas denitrifying technology field, more particularly to a kind of denitrating flue gas multistage filtering dust-extraction unit.
Background technology
Flue gas desulfurization and denitrification is the major fields of Environmental Protection in China department control flue gas pollutant discharge.China is to cigarette at present There are many kinds of the technologies of gas disposal, is all that directly flue gas is linked into denitration reaction tower in the past, containing big among these flue gases The flue dust of amount, it is easy to make catalyst poisoning, reduce desulfurization effect.For this purpose, it is non-to seek a kind of denitrating flue gas dust removal by filtration device It is often important.
Invention content
In order to overcome problems of the prior art, present invention offer is a kind of to overcome smoke contamination in denitrating tower, protect Demonstrate,prove the denitrating flue gas multistage filtering dust-extraction unit of catalyst effecting reaction.
The present invention adopts the technical scheme that achieve the above object:A kind of denitrating flue gas multistage filtering dust-extraction unit, packet Air inlet pipe and muffler are included, it is characterized in that:The air inlet pipe connect filter element, dust removing units and sewage unit with muffler; The filter element includes at least thick grade filter device, thin grade filter device dual stage filter apparatus, and the dust removing units include sound Wave soot blower and bunker wall vibration device, sonic soot blowing device are located at filter device side, and bunker wall vibration device is located under filter device Side;The sewage unit includes ash bucket and star-shaped dust-discharging valve, and ash bucket is connected to below bunker wall vibration device, and the lower end of ash bucket connects star Type unloading valve.
The filter device includes being bolted group, movable press strip device, filter cloth, fixed pressing strip device, stiffener plate, filter Cloth support device, fixed pressing strip device are welded with siding with filter cloth support device, and the stiffener plate for increasing intensity is welded In in filter cloth support device, filter cloth is located between fixed pressing strip device and movable press strip device, and movable press strip device is used with filter cloth It is bolted after group is connected firmly and carries out smoke filtration.
Filter cloth in the thick grade filter device is 20~50 mesh, and the filter cloth in thin grade filter device is 50~100 mesh.
The air inlet pipe is connected to the both ends of filter element with muffler.
The sonic soot blowing device is located at the windward side of filter device, and frequency of soot blowing is 160~250HZ.
The bunker wall vibration device is located in ash bucket, and rapping frequency is 50~100HZ.
The present invention solves the flue dust packing phenomenon in existing desulphurization plant, and design effect is reasonable, simple in structure, and filtering is set It is standby to replace conveniently;It ensure that filtrating smoke dust effect;When flue gas enters denitrating flue gas multistage filtering dust-extraction unit, pass through double-filtration Device filters out deleterious particle, opens sonic soot blowing device and bunker wall vibration device, among so that deleterious particle is fallen within ash bucket, passes through star Type unloading valve removal deleterious particle filters clean flue gas and enters back into denitrating tower progress denitration reaction.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the filter device schematic diagram of the present invention.
In figure:1, muffler;2, thick grade filter device;3, sonic soot blowing device;4, thin grade filter device;5, air inlet pipe; 6, ash bucket;7, bunker wall vibration device;8, star-shaped dust-discharging valve;9, it is bolted group;10, movable press strip device;11, filter cloth;12, fixed Pressing strip device;13, stiffener plate;14, filter cloth support device.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is further described with embodiment:
Embodiment 1
As shown in Figure 1, a kind of denitrating flue gas multistage filtering dust-extraction unit, including air inlet pipe 5 and muffler 1, it is characterized in that: The air inlet pipe 5 connect filter element, dust removing units and sewage unit with muffler 1;The filter element includes at least thick grade Filter device 2, thin 4 dual stage filter apparatus of grade filter device, the dust removing units include sonic soot blowing device 3 and bunker wall vibration device 7, sonic soot blowing device 3 is located at filter device side, and bunker wall vibration device 7 is located at below filter device;The sewage unit includes Ash bucket 6 and star-shaped dust-discharging valve 8, ash bucket 6 are connected to 7 lower section of bunker wall vibration device, and the lower end of ash bucket 6 connects star-shaped dust-discharging valve 8.
As shown in Fig. 2, the filter device includes being bolted group 9, movable press strip device 10, filter cloth 11, fixed press strip Device 12, stiffener plate 13, filter cloth support device 14, fixed pressing strip device 12 are welded with siding with filter cloth support device 14, Stiffener plate 13 for increasing intensity is welded in filter cloth support device 14, and filter cloth 11 is located at fixed pressing strip device 12 and activity Between pressing strip device 10, movable press strip device 10 is connected with after group 9 is connected firmly with filter cloth 11 and carries out smoke filtration.
Filter cloth in the thick grade filter device 2 is 20 mesh, and the filter cloth in thin grade filter device 4 is 50 mesh.
The air inlet pipe 5 is connected to the both ends of filter element with muffler 1.
The sonic soot blowing device 3 is located at the windward side of filter device, frequency of soot blowing 160HZ.
The bunker wall vibration device 7 is located in ash bucket 6, and rapping frequency is 50HZ.
The course of work of the present invention is as follows:After flue gas is by air inlet pipe 5, the thick grade filter device 2 filters out small After the deleterious particle of 50 mesh, the thin grade filter device 4 filters out the deleterious particle less than 100 mesh, passes through muffler 1 It is reacted into denitration process tower.The denitrating flue gas multistage filtering dust-extraction unit, passes through sonic soot blowing device 3, bulkhead Vibrator 7 falls the harmful substances such as the flue dust filtered down in ash bucket 6, passes through 8 removal waste material of star-shaped dust-discharging valve.
Embodiment 2
The Each part and connection relation of a kind of denitrating flue gas multistage filtering dust-extraction unit described in the present embodiment are equal In the same manner as in Example 1, different technical parameters are:
1) filter cloth in the thick grade filter device 2 is 35 mesh, and the filter cloth in thin grade filter device 4 is 75 mesh;
2) frequency of soot blowing of the sonic soot blowing device 3 is 205HZ;
3) the rapping frequency of the bunker wall vibration device 7 is 75HZ.
Embodiment 3
The Each part and connection relation of a kind of denitrating flue gas multistage filtering dust-extraction unit described in the present embodiment are equal In the same manner as in Example 1, different technical parameters are:
1) filter cloth in the thick grade filter device 2 is 50 mesh, and the filter cloth in thin grade filter device 4 is 100 mesh;
2) frequency of soot blowing of the sonic soot blowing device 3 is 250HZ;
3) the rapping frequency of the bunker wall vibration device 7 is 100HZ.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (6)

1. a kind of denitrating flue gas multistage filtering dust-extraction unit, including air inlet pipe (5) and muffler (1), it is characterized in that:The air inlet Pipe (5) connect filter element, dust removing units and sewage unit with muffler (1);The filter element is filtered including at least thick grade Device (2), thin grade filter device (4) dual stage filter apparatus, the dust removing units include sonic soot blowing device (3) and bunker wall vibration Device (7), sonic soot blowing device (3) are located at filter device side, and bunker wall vibration device (7) is located at below filter device;The blowdown Unit includes ash bucket (6) and star-shaped dust-discharging valve (8), and ash bucket (6) is connected to below bunker wall vibration device (7), and the lower end of ash bucket (6) connects Connect star-shaped dust-discharging valve (8).
2. a kind of denitrating flue gas multistage filtering dust-extraction unit according to claim 1, it is characterized in that:The filter device packet It includes and is bolted group (9), movable press strip device (10), filter cloth (11), fixed pressing strip device (12), stiffener plate (13), filter cloth Support device (14), fixed pressing strip device (12) are welded with siding with filter cloth support device (14), for increasing adding for intensity Strengthening tendons plate (13) is welded in filter cloth support device (14), and filter cloth (11) is located at fixed pressing strip device (12) and movable press strip device (10) between, movable press strip device (10) is connected with after group (9) is connected firmly with filter cloth (11) and carries out smoke filtration.
3. a kind of denitrating flue gas multistage filtering dust-extraction unit according to claim 1 or 2, it is characterized in that:The thick grade mistake It is 20~50 mesh to filter the filter cloth in device (2), and the filter cloth in thin grade filter device (4) is 50~100 mesh.
4. a kind of denitrating flue gas multistage filtering dust-extraction unit according to claim 1, it is characterized in that:The air inlet pipe (5) The both ends of filter element are connected to muffler (1).
5. a kind of denitrating flue gas multistage filtering dust-extraction unit according to claim 1, it is characterized in that:The sonic soot blowing dress The windward side that (3) are located at filter device is set, frequency of soot blowing is 160~250HZ.
6. a kind of denitrating flue gas multistage filtering dust-extraction unit according to claim 1, it is characterized in that:The bunker wall vibration device (7) it is located in ash bucket (6), rapping frequency is 50~100HZ.
CN201810263637.8A 2018-03-28 2018-03-28 A kind of denitrating flue gas multistage filtering dust-extraction unit Pending CN108325281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810263637.8A CN108325281A (en) 2018-03-28 2018-03-28 A kind of denitrating flue gas multistage filtering dust-extraction unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810263637.8A CN108325281A (en) 2018-03-28 2018-03-28 A kind of denitrating flue gas multistage filtering dust-extraction unit

Publications (1)

Publication Number Publication Date
CN108325281A true CN108325281A (en) 2018-07-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113209727A (en) * 2021-04-15 2021-08-06 江苏泽宇环境工程有限公司 Gravity type pulse dust removal denitration integrated device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113209727A (en) * 2021-04-15 2021-08-06 江苏泽宇环境工程有限公司 Gravity type pulse dust removal denitration integrated device

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Application publication date: 20180727