CN102553382B - Double-row filter bag embedded type electric bag compound dust catcher with electric field area at front stage - Google Patents
Double-row filter bag embedded type electric bag compound dust catcher with electric field area at front stage Download PDFInfo
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- CN102553382B CN102553382B CN2011104579645A CN201110457964A CN102553382B CN 102553382 B CN102553382 B CN 102553382B CN 2011104579645 A CN2011104579645 A CN 2011104579645A CN 201110457964 A CN201110457964 A CN 201110457964A CN 102553382 B CN102553382 B CN 102553382B
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- 239000000428 dust Substances 0.000 title claims abstract description 102
- 230000005684 electric field Effects 0.000 title claims abstract description 59
- 150000001875 compounds Chemical class 0.000 title abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004071 soot Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 6
- 238000004887 air purification Methods 0.000 abstract 3
- 239000011148 porous material Substances 0.000 abstract 3
- 210000003284 Horns Anatomy 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
- 239000003546 flue gas Substances 0.000 description 18
- 238000005215 recombination Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000711 cancerogenic Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000003505 mutagenic Effects 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention discloses a double-row filter bag embedded type electric bag compound dust catcher with an electric field area at the front stage, and relates to an industrial dust catcher. The dust catcher is provided with an inlet horn, a casing, a smoke duct, a filter bag, an ash cleaning system, an ash hopper, a discharge electrode, a dust absorbing polar plate, a rear discharge electrode and dust collecting pore plates; the front end and the rear end in the casing are provided with an electric field area at the front stage and an embedded electric bag dedusting area at the rear stage, an air inlet of the electric field area is connected with the inlet horn, and a flow guiding adjusting plate is arranged between an air inlet of the dedusting area and an air outlet of the electric field area; an air purification chamber is arranged at the upper part in the casing, and the air inlet of the air purification chamber is connected with an air outlet of the dedusting area; the air inlet of the smoke duct is connected with the air outlet of the air purification chamber, and a lifting valve device is arranged at the top of the smoke duct; the ash hopper is arranged at the bottom of the casing; a bypass valve device is arranged at the top of the electric field area of the front stage, the discharge electrode and the dust absorbing polar plate are arranged at the front end of the casing to form the electric field area of the front stage; the rear discharge electrode and the dust collecting pore plates are arranged at the rear end of the casing to form an electric field of the rear stage; the filter bag is arranged between the two dust collecting pore plates to form a filter area of the filter bag; and the electric field area of the rear stage and the filter bag area form the embedded electric bag dedusting area.
Description
Technical field
The present invention relates to a kind of industrial dust collector, especially relate to a kind of double filter bag embedded-type electric bag complex dust collector of prime band electric field region.
Background technology
At present, airborne particle has become one of main air pollutants of China, and airborne particle has a strong impact on air visibility, also can produce health and have a strong impact on PM
2.5Refer to that particle diameter less than 2.5 microns particle, is called as fine particle, it is the one of the main reasons that causes human body tuberculosis, PM
2.5Particle diameter is little, and specific area is large, and the surface is easy to enrichment As, Se, and Pb, heavy metal element and the PAHs such as Cr, PCDD/Fs, organic thing that stains such as VOCs, these materials mostly are carcinogen and gene viruses mutagen matter.The generation of particulate in air mainly is that the industrial a large amount of dust of burning generation to materials such as collieries directly or indirectly enters among the air.Industrial dust collector is exactly a kind of important Environmental-protecting dust-removing equipment that is widely used in countries in the world.
At present, industrial dust collector mainly is divided into three kinds of electrostatic precipitator, sack cleaner and electric bag compound type dust removers.Electrostatic precipitator is charged in electric field by dust, and the process that deposits to dust collection plate under the electric field force effect.It is larger that electrostatic precipitator is affected by the dust charging performance, and fine dust is larger than resistance, and difficult charged, not charged dust easily directly discharges with air-flow, and smoke emissioning concentration is difficult to reach National Emission Standard.Sack cleaner is that it is not subjected to the impact of dust self character by filter bag fiber filter performance purifying smoke, has the high characteristics of efficiency of dust collection, but because its work principle of filter can cause the smoke filtration resistance large, cleaning cycle is short, and life of bag filter is not long, also consumes a large amount of electric energy simultaneously.Electric-bag complex dust collector is the novel deduster pattern that develops in conjunction with the two characteristics of electrostatic precipitator and sack cleaner, it is organically combined by prime electrostatic precipitation and rear class bag-type dust and forms, the prime electric field energy is removed a large amount of dust, reduce to enter rear class cloth bag district Dust Capacity, reduce the filtration resistance in rear class cloth bag district, the rear class bag-type dust can provide high efficiency of dust collection.
US Patent No. 6544317 disclosed electric-bag complex dust collectors, its operation principle is: its main single filter bag is embedded into two and gathers dust between the orifice plate, place the deduster that sparking electrode consists of orifice plate is peripheral, have that filtration velocity is high, charged effective, the efficiency of dust collection high of dust.
US Patent No. 6152988 disclosed another kind of electric-bag complex dust collectors, its operation principle is: the compound type dust remover that adopts prime electric precipitation district, rear class electricity bag structure, rear class electricity bag structure is by filter bag and negative electrode interlaced arrangement, form the dedusting of electricity bag, has filtration velocity high, can reduce reentrainment of dust, the efficiency of dust collection high.
Summary of the invention
The object of the invention is to the shortcoming for existing electric-bag complex dust collector existence, a kind of double filter bag embedded-type electric bag complex dust collector of prime band electric field region is provided.
The present invention is provided with import loudspeaker, housing, flue, filter bag, soot cleaning system, ash bucket, sparking electrode, dust collecting pole plate, rear sparking electrode and the orifice plate that gathers dust; The housing Inner Front End is provided with the prime electric field region, the rear end is provided with rear class embedded-type electric bag dedusting area in the housing, the air inlet of prime electric field region is connected with the gas outlet of import loudspeaker, is provided with the water conservancy diversion adjustable plate between the air inlet of rear class embedded-type electric bag dedusting area and the gas outlet of prime electric field region; Top in the housing is provided with air-purifying chamber, and the air inlet of air-purifying chamber is connected with the gas outlet of rear class embedded-type electric bag dedusting area; Flue is located at the top of housing, and the air inlet of flue is connected with the gas outlet of air-purifying chamber, is provided with poppet valve device at the top of flue; Ash bucket is located at the bottom of housing; The top of prime electric field region is provided with the bypass valve device, and sparking electrode and dust collecting pole plate are located at the housing front end, forms the prime electric field region; Rear sparking electrode and the orifice plate that gathers dust are located at the housing rear end, form the rear class electric field region; Filter bag is located at two and is gathered dust between the orifice plate, forms the filter bag filtering area; Rear class electric field region and filter bag district consist of rear class embedded-type electric bag dedusting area.
The bottom of described housing can be provided with support.
The person of ordinary skill in the field knows, electrostatic precipitation is that high-voltage discharging electrode carries out corona discharge to dust collector pole, forms electric field, charged being adsorbed of dust in the flue gas and break away from the process that air-flow reaches dedusting.Bag-type dust is when flue gas passes through filter bag, clean flue permeating filter bag, and dust is blocked in the surface and the process of dedusting by the filter bag fiber in the flue gas.And embedded-type electric bag composite dedusting to be flue gas gather dust between the orifice plate by be embedded into two by filter bag, at peripheral dispatch from foreign news agency dedusting area that sparking electrode consists of and the dust removal process of inner bag dedusting area placed of orifice plate.
Basic scheme of the present invention is to adopt prime band electric field region, rear class adopts the deduster of double filter bag embedded-type electric bag recombination region, the prime electric field region can be collected a large amount of dust, reduce to enter the dust concentration of rear class dedusting area, reduce rear class dedusting area dust treating capacity, rear class adopts double filter bag embedded-type electric bag recombination region more compact structure, can reduce reentrainment of dust, reduce the dedusting overall resistance, prolong cleaning cycle, prolong life of bag filter, can improve filtration velocity simultaneously, enhanced flow is to the charged effect of the dust of filter bag, improve the condition of work of electricity bag recombination region, improve reliability and the dust removal performance of deduster.
The present invention adopts prime band electric field region, rear class to adopt the embedded-type electric bag recombination region deduster of double filter bag, the industrial dust collector (mainly containing electric cleaner, sack cleaner and electric-bag complex dust collector) that use in the present whole world has been done important improvement, it is a kind of new construction design of electrostatic fabric filter, it can effectively prolong life of bag filter, improve filtration velocity, improve efficiency of dust collection, to capture the dust that exceeds standard in the flue gas, realize the flue gas qualified discharge, reduce the pollution to environment.
This shows, the present invention has following outstanding advantages:
1) a large amount of dust can be collected by prime electric precipitation district, reduce to enter the dust concentration of rear class dedusting area, reduce rear class dedusting area dust treating capacity, solve the embedded-type electric bag to the problem of entrance concentration bad adaptability.
2) rear class adopt embedded-type electric bag recombination region can enhanced flow to the charged effect of the dust of filter bag, partial product can be blown into electric field region at the dust of filter bag during deashing, again told on the orifice plate that gathers dust by charged blowing, reduce residual resistive, improve reliability and the dust removal performance of deduster.
3) the embedded-type electric bag complex dust collector of double filter bag can reduce floor space greatly, compare with the embedded-type electric bag complex dust collector of single filter bag, can reduce by 30% floor space, more compact structure, simultaneously can improve filtration velocity, increase the flue gas treating capacity, reduce the deduster cost, improve the deduster overall performance.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention forms schematic diagram.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the electric field region dedusting schematic diagram of the embodiment of the invention.
Fig. 4 is the embedded-type electric bag composite dedusting schematic diagram of the double filter bag of rear class of the embodiment of the invention.
Fig. 5 is the filter bag pulse jet schematic diagram of the embodiment of the invention.
The specific embodiment
The present invention is further illustrated in connection with accompanying drawing for following examples.
Referring to Fig. 1～5, the embodiment of the invention is provided with import loudspeaker 2, housing 3, flue 9, support 10, filter bag 11, soot cleaning system 12, ash bucket 13, sparking electrode 15, dust collecting pole plate 16, rear sparking electrode 17 and the orifice plate 18 that gathers dust; Be provided with prime electric field region 4 and rear class embedded-type electric bag dedusting area 6 in the housing 3, the air inlet of prime electric field region 4 is connected with the gas outlet of import loudspeaker 2, is provided with water conservancy diversion adjustable plate 5 between the gas outlet in the air inlet of rear class embedded-type electric bag dedusting area 6 and prime electricity district 4; Top in the housing 3 is provided with air-purifying chamber 7, and the air inlet of air-purifying chamber 7 is connected with the gas outlet of rear class embedded-type electric bag dedusting area 6; Flue 9 is located at the top of housing 3, and the air inlet of flue 9 is connected with the gas outlet of air-purifying chamber 7, is provided with poppet valve device 8 at the top of flue 9; Ash bucket 13 is located at the bottom of housing 3; The top of prime electric field region 4 is provided with bypass valve device 14, and sparking electrode 15 and dust collecting pole plate 16 are located at housing 3 front ends, forms prime electric field region 4; Rear sparking electrode 17 and the orifice plate 18 that gathers dust are located at housing 3 rear ends, form rear class electric field region 19; Filter bag is located at two and is gathered dust between the orifice plate 18, forms the filter bag filtering area; Rear class electric field region 19 and filter bag district consist of rear class embedded-type electric bag dedusting area 6.Described support 10 is located at the bottom of housing 3.
The work basic principle of the embodiment of the invention is: flue gas 1 enters the housing 3 from import loudspeaker 2, in housing 3, at first pass through prime electric field region 4 dedustings (referring to Fig. 3), then passing through water conservancy diversion adjustable plate 5 (be used for to regulate flue gas enter rear class embedded-type electric bag dedusting area 6 air-flows distribute) enters 6 dedustings of rear class embedded-type electric bag dedusting area and (can adopt the double filter bag embedded-type electric of rear class bag recombination region, referring to Fig. 4), wherein the embedded-type electric bag recombination region of double filter bag is mainly by sparking electrode, gather dust orifice plate and double filter bag mutually embeds and consists of the dedusting of electricity bag, then enter air-purifying chamber 7 (air-purifying chamber 7 is provided with poppet valve device 8), discharge clean flue gas from flue 9 at last.
In Fig. 3, flue gas 1 passes in the prime electric field region 4 that is formed by sparking electrode 15 and dust collecting pole plate 16, in the flue gas 1 dust charged by absorption on positive plate.Then by rapping apparatus dust releasing is entered in the ash bucket 13.
In Fig. 4, the flue gas 1 by prime electric field region 4 passes into the rear class electric field region 19 that is formed by rear sparking electrode 17 and the orifice plate 18 that gathers dust again, and the filter bag filtering area of filter bag 11 formation is namely in the rear class embedded-type electric bag dedusting area 6.Rear class electric field region 19 carries out corona discharge to flue gas 1, makes that exhaust gas dust is charged to be adsorbed on the orifice plate 18 that gathers dust, and makes dust fall into ash bucket by rapping apparatus; Then the flue permeating by rear class electric field region 19 advances filter bag 11, carries out filter bag 11 and filters, and remaining dust absorption is on filter bag 11 at last.
When filter bag 11 accumulated powder dirt are too much, by soot cleaning system 12, filter bag 11 is produced pulse jet (referring to Fig. 5), make a part of dust fall into ash bucket 13; Another part is blown in the rear class embedded-type electric bag dedusting area 6, and dust is by charged, and then absorption enters in the ash bucket 13 dust releasing by vibrated system in the anode system on the orifice plate that gathers dust.
When filter bag of dust collector need to overhaul, open bypass valve device 14, close poppet valve device 8, make flue gas flow into bypass valve device 14 from prime electric field region 4, pass into flue 9, discharge the only flue gas of process electric precipitation.
This shows, the double filter bag embedded-type electric bag complex dust collector of a kind of prime band electric field region provided by the present invention designs in conjunction with multiple dedusting technology characteristic of property, it adopts prime band electric field region, rear class to adopt the deduster of the embedded-type electric bag recombination region of double filter bag, the prime electric field region can be collected a large amount of dust, reduce to enter the dust concentration of rear class embedded-type electric bag recombination region, reduce rear class dust treating capacity, be conducive to improve the rear class filtration velocity, improve overall performance and reliability.
The present invention compares with US Patent No. 6544317 disclosed a kind of embedded-type electric bag complex dust collectors, the present invention in flue gas treating capacity one regularly, because its damascene structures form makes its filter area little, the filtration velocity degree is large, and the ratio dust-collecting area of electric field region is little, the dust efficient that electric field region captures is affected, and for the flue gas of higher concentration, can produce filtration resistance large, cleaning cycle is short, reduces the service life of filter bag.Compare with the present invention, under filter bag quantity one stable condition, its double filter bag changes single filter bag into, can greatly increase floor space, increases cost.
The present invention compares with US Patent No. 6152988, this patent adopts prime electric field, rear class electricity bag composite construction, because its rear class electricity bag structure forms electric field region by filter bag and sparking electrode, electric field discharge meeting is to the filter bag erosion of discharging, need to select antistatic filter bag, involve great expense.And the present invention since gather dust orifice plate greatly electric field shielding so there is not the discharge erosion in the discharge process of filter bag.
Claims (2)
1. the double filter bag embedded-type electric bag complex dust collector of a prime band electric field region is characterized in that being provided with import loudspeaker, housing, flue, filter bag, soot cleaning system, ash bucket, sparking electrode, dust collecting pole plate, rear sparking electrode and the orifice plate that gathers dust; The housing Inner Front End is provided with the prime electric field region, the rear end is provided with rear class embedded-type electric bag dedusting area in the housing, the air inlet of prime electric field region is connected with the gas outlet of import loudspeaker, is provided with the water conservancy diversion adjustable plate between the air inlet of rear class embedded-type electric bag dedusting area and the gas outlet of prime electric field region; Top in the housing is provided with air-purifying chamber, and the air inlet of air-purifying chamber is connected with the gas outlet of rear class embedded-type electric bag dedusting area; Flue is located at the top of housing, and the air inlet of flue is connected with the gas outlet of air-purifying chamber, is provided with poppet valve device at the top of flue; Ash bucket is located at the bottom of housing; The top of prime electric field region is provided with the bypass valve device, and sparking electrode and dust collecting pole plate are located at the housing front end, forms the prime electric field region; Rear sparking electrode and the orifice plate that gathers dust are located at the housing rear end, form the rear class electric field region; Filter bag is located at two and is gathered dust between the orifice plate, forms the filter bag filtering area; Rear class electric field region and filter bag filtering area consist of rear class embedded-type electric bag dedusting area.
2. the double filter bag embedded-type electric bag complex dust collector of a kind of prime band electric field region as claimed in claim 1 is characterized in that the bottom of described housing is provided with support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104579645A CN102553382B (en) | 2011-12-30 | 2011-12-30 | Double-row filter bag embedded type electric bag compound dust catcher with electric field area at front stage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104579645A CN102553382B (en) | 2011-12-30 | 2011-12-30 | Double-row filter bag embedded type electric bag compound dust catcher with electric field area at front stage |
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| CN102553382A CN102553382A (en) | 2012-07-11 |
| CN102553382B true CN102553382B (en) | 2013-03-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203156B (en) * | 2013-05-07 | 2015-12-23 | 福建东源环保有限公司 | A kind of embedded-type electric bag complex dust collector |
| CN103566695B (en) * | 2013-11-12 | 2015-02-18 | 清华大学 | Enhanced coupled-mode embedded type electrostatic-bag integrated dust collector |
| CN112774387B (en) * | 2021-01-21 | 2022-07-12 | 福建龙净环保股份有限公司 | Electric-bag composite dust collector |
| CN113457351B (en) * | 2021-07-27 | 2022-07-26 | 北京节度科技有限公司 | Electric bag dust collector |
| CN113731091B (en) * | 2021-09-13 | 2022-07-19 | 清华大学 | Asymmetric electrostatic enhancement electric bag coupling dust remover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152988A (en) * | 1997-10-22 | 2000-11-28 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Enhancement of electrostatic precipitation with precharged particles and electrostatic field augmented fabric filtration |
| CN2730484Y (en) * | 2004-05-26 | 2005-10-05 | 福建龙净环保股份有限公司 | Electric-bag combined type dust remover |
| CN101310822A (en) * | 2007-05-21 | 2008-11-26 | 福建闽泰环保有限公司 | Lens electric-bag complex dust collector |
| CN101607163A (en) * | 2008-06-16 | 2009-12-23 | 福建龙净环保股份有限公司 | Multiple electrostatic fabric filters |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544317B2 (en) * | 2001-03-21 | 2003-04-08 | Energy & Environmental Research Center Foundation | Advanced hybrid particulate collector and method of operation |
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2011
- 2011-12-30 CN CN2011104579645A patent/CN102553382B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152988A (en) * | 1997-10-22 | 2000-11-28 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Enhancement of electrostatic precipitation with precharged particles and electrostatic field augmented fabric filtration |
| CN2730484Y (en) * | 2004-05-26 | 2005-10-05 | 福建龙净环保股份有限公司 | Electric-bag combined type dust remover |
| CN101310822A (en) * | 2007-05-21 | 2008-11-26 | 福建闽泰环保有限公司 | Lens electric-bag complex dust collector |
| CN101607163A (en) * | 2008-06-16 | 2009-12-23 | 福建龙净环保股份有限公司 | Multiple electrostatic fabric filters |
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