CN102553382A - 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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- CN102553382A CN102553382A CN2011104579645A CN201110457964A CN102553382A CN 102553382 A CN102553382 A CN 102553382A CN 2011104579645 A CN2011104579645 A CN 2011104579645A CN 201110457964 A CN201110457964 A CN 201110457964A CN 102553382 A CN102553382 A CN 102553382A
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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
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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 dedusting device, especially relate to the embedded electric-bag complex dust collector of double filter bag of the charged place of a kind of prime.
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
2.5Be meant 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 big, and the surface is easy to enrichment As, Se, and Pb, heavy metal element and PAHs such as Cr, PCDD/Fs, organic thing that stains such as VOCs, mostly these materials are carcinogen and gene viruses mutagen matter.The generation of particulate in air mainly is that industrial burning generation amounts of dust to materials such as collieries directly or indirectly enters among the air.The industrial dedusting device is exactly a kind of important environmental protection cleaner that is widely used in countries in the world.
At present, the industrial dedusting device 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 under the electric field force effect, deposits to dust collection plate.It is bigger that electrostatic precipitator is influenced by the dust charging performance, and fine dust is bigger than resistance, and difficult charged, not charged dust directly discharges with air-flow easily, and smoke emissioning concentration is difficult to reach national pollutant emission standard.Sack cleaner is that it does not receive the influence of dust self character through filter bag fiber filter performance flue, has the high characteristics of efficiency of dust collection; But because its work principle of filter can cause the smoke filtration resistance big; 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 be combine electrostatic precipitator and sack cleaner the two the characteristics development and the novel deduster pattern; It is organically combined with back level bag-type dust by the prime electrostatic precipitation and forms; The prime electric field energy is removed a large amount of dust; Reduce to get into level cloth bag district, back Dust Capacity, reduce the filtration resistance in level cloth bag district, back, back level bag-type dust can provide high efficiency of dust collection.
U.S. Pat 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 constitutes in that orifice plate is peripheral, have characteristics such as charged effective, the efficiency of dust collection height of filtration velocity height, dust.
U.S. Pat 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, the electric bag constructions of back level; The back electric bag constructions of level forms the dedusting of electricity bag by filter bag and negative electrode interlaced arrangement, has the filtration velocity height; Can reduce reentrainment of dust, characteristics such as efficiency of dust collection height.
Summary of the invention
The objective of the invention is to shortcoming, the embedded electric-bag complex dust collector of double filter bag of the charged place of a kind of prime is provided to existing electric-bag complex dust collector existence.
The present invention is provided with import loudspeaker, housing, flue, filter bag, soot cleaning system, ash bucket, sparking electrode, dust collecting pole plate, back 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 the embedded electricity bag of back level 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 the embedded electricity bag of back level 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 the embedded electricity bag of back level 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; Back sparking electrode is located at the housing rear end with the orifice plate that gathers dust, and forms back level electric field region; Filter bag is located at two and is gathered dust between the orifice plate, forms the filter bag filtering area; Back level electric field region and filter bag district constitute the embedded electricity bag of back level dedusting area.
The bottom of said housing can be provided with support.
The person of ordinary skill in the field knows that 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 electricity bag composite dedusting is that flue gas gathers dust between the orifice plate through be embedded into two by filter bag, at the peripheral dispatch from foreign news agency dedusting area of sparking electrode formation and the dust removal process of inner bag dedusting area placed of orifice plate.
Basic scheme of the present invention is to adopt the charged place of prime, back level to adopt the deduster of the embedded electricity bag of double filter bag recombination region, and the prime electric field region can be collected a large amount of dust, reduces to get into the dust concentration of back level dedusting area; Reduce back level dedusting area dust treating capacity, the back level adopts the embedded electricity bag of double filter bag recombination region more compact structure, can reduce reentrainment of dust; Reduce the dedusting overall resistance, prolong cleaning cycle, prolong life of bag filter; Simultaneously can improve filtration velocity; Enhanced flow improves the condition of work of electricity bag recombination region to the charged effect of the dust of filter bag, improves the reliability and the dust removal performance of deduster.
The present invention adopts the charged place of prime, back level to adopt the embedded electricity bag recombination region deduster of double filter bag, and the industrial dedusting device (mainly containing electric cleaner, sack cleaner and electric-bag complex dust collector) that use in the present whole world has been done important improvement, is a kind of new construction design of electric bag dust collector; 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 pollution environment.
This shows that the present invention has following outstanding advantage:
1) a large amount of dust can be collected by prime electric precipitation district, reduce to get into the dust concentration of back level dedusting area, reduce back level dedusting area dust treating capacity, solve the problem of embedded electricity bag to the entrance concentration bad adaptability.
2) back level adopt embedded electricity 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 the reliability and the dust removal performance of deduster.
3) the embedded electric-bag complex dust collector of double filter bag can reduce floor space greatly; Compare with the embedded 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 deduster complete machine performance.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention is formed sketch map.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the electric field region dedusting sketch map of the embodiment of the invention.
Fig. 4 is the embedded electricity bag composite dedusting sketch map of the double filter bag of back level of the embodiment of the invention.
Fig. 5 is the filter bag pulse jet sketch map of the embodiment of the invention.
The specific embodiment
Following examples will combine accompanying drawing that the present invention is further described.
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, back sparking electrode 17 and the orifice plate 18 that gathers dust; Be provided with prime electric field region 4 and the embedded electricity bag of back level 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 air inlet of the embedded electricity bag of back level dedusting area 6 and the gas outlet in 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 the embedded electricity bag of back level 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 is located at housing 3 front ends with dust collecting pole plate 16, forms prime electric field region 4; Back sparking electrode 17 is located at housing 3 rear ends with the orifice plate 18 that gathers dust, and forms back level 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; Back level electric field region 19 constitutes the embedded electricity bag of back level dedusting area 6 with the filter bag district.Said support 10 is located at the bottom of housing 3.
The work basic principle of the embodiment of the invention is: flue gas 1 gets into the housing 3 from import loudspeaker 2; In housing 3, at first pass through prime electric field region 4 dedustings (referring to Fig. 3); Passing through water conservancy diversion adjustable plate 5 (be used to regulate flue gas get into the embedded electricity bag of back level dedusting area 6 air-flows distribute) then gets into 6 dedustings of the embedded electricity bag of back level dedusting area and (can adopt the embedded electricity bag of the double filter bag of level recombination region, back; Referring to Fig. 4); Wherein the embedded electricity bag recombination region of double filter bag is mainly embedded each other by sparking electrode, gather dust orifice plate and double filter bag and constitutes the dedusting of electricity bag, gets into air-purifying chamber 7 (air-purifying chamber 7 is provided with poppet valve device 8) then, discharges clean flue gas from flue 9 at last.
In Fig. 3, flue gas 1 feeds 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.Through rapping apparatus dust releasing is gone in the ash bucket 13 then.
In Fig. 4, the flue gas 1 through prime electric field region 4 feeds the back level electric field region 19 that is formed by the back sparking electrode 17 and the orifice plate 18 that gathers dust again, and the filter bag filtering area that filter bag 11 forms is promptly in the embedded electricity bag dedusting area 6 of back level.Level electric field region 19 in back 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 through rapping apparatus; Flue permeating through back level electric field region 19 advances filter bag 11 then, carries out filter bag 11 and filters, and remaining at last dust absorption is on filter bag 11.
When filter bag 11 accumulated powder dirt are too much, through 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 embedded electricity bag of the back level dedusting area 6, and dust is by charged, and absorption goes in the ash bucket 13 dust releasing through vibrated system in the anode system on the orifice plate that gathers dust then.
When filter bag of dust collector need 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, feed flue 9, discharge the only flue gas of process electric precipitation.
This shows; The embedded electric-bag complex dust collector of the double filter bag of the charged place of a kind of prime provided by the present invention combines multiple dedusting technology performance characteristics and designs, and it adopts the charged place of prime, back level to adopt the deduster of the embedded electricity bag recombination region of double filter bag, and the prime electric field region can be collected a large amount of dust; Reduce to get into the dust concentration of the embedded electricity bag of back level recombination region; Reduce back level dust treating capacity, help improving back level filtration velocity, improve the complete machine Performance And Reliability.
The present invention compares with U.S. Pat 6544317 disclosed a kind of embedded electric-bag complex dust collectors, and the present invention is in one timing of flue gas treating capacity, because its damascene structures form; Make its filter area little, the filtration velocity degree is big, 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, it is big to produce filtration resistance; 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 increase floor space greatly, increases the cost cost.
The present invention compares with U.S. Pat 6152988; This patent adopts prime electric field, back level electricity bag composite construction, because the electric bag constructions of level forms electric field region by filter bag and sparking electrode thereafter, electric field discharge meeting is to the filter bag erosion of discharging; Need select antistatic filter bag for use, 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 embedded electric-bag complex dust collector of double filter bag of the charged place of prime is characterized in that being provided with import loudspeaker, housing, flue, filter bag, soot cleaning system, ash bucket, sparking electrode, dust collecting pole plate, back 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 the embedded electricity bag of back level 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 the embedded electricity bag of back level 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 the embedded electricity bag of back level 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; Back sparking electrode is located at the housing rear end with the orifice plate that gathers dust, and forms back level electric field region; Filter bag is located at two and is gathered dust between the orifice plate, forms the filter bag filtering area; Back level electric field region and filter bag district constitute the embedded electricity bag of back level dedusting area.
2. the embedded electric-bag complex dust collector of double filter bag of the charged place of a kind of prime as claimed in claim 1 is characterized in that the bottom of said housing is provided with support.
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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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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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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103566695A (en) * | 2013-11-12 | 2014-02-12 | 清华大学 | Enhanced coupled-mode embedded type electrostatic-bag integrated dust collector |
WO2016029333A1 (en) * | 2013-05-07 | 2016-03-03 | 福建东源环保有限公司 | Embedded-type electrified bag composite dust collector |
CN107051099A (en) * | 2017-07-03 | 2017-08-18 | 福建龙净环保股份有限公司 | Couple electric-bag complex dust collector |
CN110026044A (en) * | 2019-05-08 | 2019-07-19 | 江苏朗润环保科技有限公司 | Composite guide streaming electric-bag complex dust collector |
CN112774387A (en) * | 2021-01-21 | 2021-05-11 | 福建龙净环保股份有限公司 | Electric-bag composite dust collector |
CN113457351A (en) * | 2021-07-27 | 2021-10-01 | 北京节度科技有限公司 | Electric bag dust collector |
CN113731091A (en) * | 2021-09-13 | 2021-12-03 | 清华大学 | Asymmetric electrostatic enhancement electric bag coupling dust remover |
CN115007314A (en) * | 2022-05-30 | 2022-09-06 | 福建龙净环保股份有限公司 | Coupling reinforcing electric bag composite dust removal device |
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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 |
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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 |
US20020134237A1 (en) * | 2001-03-21 | 2002-09-26 | Miller Stanley J. | Advanced hybrid particulate collector and method of operation |
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 |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016029333A1 (en) * | 2013-05-07 | 2016-03-03 | 福建东源环保有限公司 | Embedded-type electrified bag composite dust collector |
CN103566695A (en) * | 2013-11-12 | 2014-02-12 | 清华大学 | Enhanced coupled-mode embedded type electrostatic-bag integrated dust collector |
CN107051099A (en) * | 2017-07-03 | 2017-08-18 | 福建龙净环保股份有限公司 | Couple electric-bag complex dust collector |
CN110026044A (en) * | 2019-05-08 | 2019-07-19 | 江苏朗润环保科技有限公司 | Composite guide streaming electric-bag complex dust collector |
CN112774387A (en) * | 2021-01-21 | 2021-05-11 | 福建龙净环保股份有限公司 | Electric-bag composite 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 |
CN113457351A (en) * | 2021-07-27 | 2021-10-01 | 北京节度科技有限公司 | Electric bag dust collector |
CN113731091A (en) * | 2021-09-13 | 2021-12-03 | 清华大学 | Asymmetric electrostatic enhancement electric bag coupling dust remover |
CN113731091B (en) * | 2021-09-13 | 2022-07-19 | 清华大学 | Asymmetric electrostatic enhancement electric bag coupling dust remover |
CN115007314A (en) * | 2022-05-30 | 2022-09-06 | 福建龙净环保股份有限公司 | Coupling reinforcing electric bag composite dust removal device |
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