CN201175681Y - Filteration anode electrostatic precipitator - Google Patents

Filteration anode electrostatic precipitator Download PDF

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Publication number
CN201175681Y
CN201175681Y CNU2008200562691U CN200820056269U CN201175681Y CN 201175681 Y CN201175681 Y CN 201175681Y CN U2008200562691 U CNU2008200562691 U CN U2008200562691U CN 200820056269 U CN200820056269 U CN 200820056269U CN 201175681 Y CN201175681 Y CN 201175681Y
Authority
CN
China
Prior art keywords
anode
chamber
dust
anode electric
cathode
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.)
Expired - Fee Related
Application number
CNU2008200562691U
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Chinese (zh)
Inventor
王巍
毛健
孙承波
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.)
SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
Original Assignee
SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
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Application filed by SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd filed Critical SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
Priority to CNU2008200562691U priority Critical patent/CN201175681Y/en
Application granted granted Critical
Publication of CN201175681Y publication Critical patent/CN201175681Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

The utility model discloses a filter anode electrofilter which is characterized in that the outer wall of an anode electric dust chamber is provided with a cathode insulating chamber; the anode electric dust chamber is internally provided with metal anode filter bags among which cathode lines connected with the cathode insulating chamber are arranged; the outer wall of the anode electric dust chamber is also provided with a cathode vibrator; a back flushing nozzle is arranged above the metal anode filter bags; an air cleaning chamber communicated with the anode dust chamber is arranged above the anode electric dust chamber and is communicated with the air outlet; a dust hopper is arranged below the anode electric dust chamber. Through the high-efficient organic combination of the low resistance and the high-temperature characteristics of electric dust removing and bag-type dust removing, a novel high-efficient and low-resistance net type anode electric dust removing device is formed. The dust removing device combines the advantages of two dry dust removers, has the advantages of high dust removing efficiency, low system resistance, simple maintenance and long service life, and can meet the requirement of future environment protection and fume dust removing.

Description

A kind of filtration anode electric cleaner
Technical field
The utility model relates to the deduster field, is specifically related to the filtration anode electric cleaner that a kind of flue gas ash removal uses.
Background technology
Current, the energy-saving and emission-reduction task that country assigns is very firm, and the environment protection treating of various places has required from measuring fundamental change, and the blowdown enterprise of industries such as each steel mill, metallurgy, power station, building materials, chemical industry uses wet dedusting, electric precipitation, bag-type dust at present.
When only reaching 20000Pa, the wet dedusting running resistance just can reach smoke evacuation dedusting 100mg/Nm 3, what have typical case's representative is the OG Wet-way dust-collector of introducing from Japan; Domestic common wet dedusting resistance has only 1500Pa, and the smoke evacuation dust collection capacity only is greater than 250mg/Nm 3, what have typical case's representative is eddy flow plate granite duster.Because the efficiency of dust collection of this method is too low, water consumption is many, and the secondary pollution problem is outstanding, and progressively replaced by the dry method electric cleaner now.
Electrostatic precipitator is to utilize the highfield corona discharge to make gas ionization, dust charged, makes under the effect of electric field force on the dust trend plated metal positive plate, thereby purifies exhaust gas dust and trickle organic object.In the world metal anode have tabular, tubulose, polygonal cellular, early molded.Electrostatic precipitator is characterized in: deduster SR little (being generally less than 300Pa), energy loss minimum in existing dust arrester; Hot electrostatic precipitator can be under 400 ℃ high-temperature flue gas situation operate as normal, be particularly suitable for high temperature gas cleaning requirements such as the technology flue gas ash removal of metallurgy, steel mill, chemical industry and denitrating flue gas; The ratio resistance of dedusting medium is adapted at 1 * 10 4~1 * 10 13Ω .cm, for than exhaust gas dusts such as the lime of higher ratio resistance, titanium dioxide silicon, dust removing effects is not good; Because the electric cleaner dust removing effects of domestic four electric fields of the bad solution of reentrainment of dust problem that the anode and cathode rapping apparatus causes can only keep 100mg/Nm 3~150mg/Nm 3, reach discharged gas fume 20mg/Nm in order to improve dust removing effects abroad 3~50mg/Nm 3Purpose, the electric cleaner or the sack cleaner of dry method 6~12 electric fields have been used, domestic purpose for qualified discharge is a sack cleaner at modifying electrostatic precipitator also, and relatively be typically: the cleaner of new power plant construction, garbage burning factory is a sack cleaner.
Sack cleaner also claims filtration dust catcher, and it is that the bag shape filter element that utilizes fibrous braid to make is held back the solid particulate matter in the flue gas, and its feature: the efficiency of dust collection height, the outlet discharging is stable, can reach 30~50mg/Nm 3Dust exhausting concentration is insensitive to dielectric property, not influenced by dust specific resistance; Sack cleaner cleaning cycle, life of bag filter are subjected to the exhaust gas dust concentration affects big, and dust concentration is high more, and deashing time and life of bag filter are short; Running resistance is big, is generally 1500Pa~2500Pa, and the operation power consumption is high; Generally be not suitable for operation under the high-temperature flue gas, exchange the high temperature cloth bag for and can under less than 200 ℃ of states, move the expense costliness.
The utility model content
The purpose of this utility model is to provide a kind of efficiency of dust collection height, and SR is low, and is easy to maintenance, and the life-span is long, can satisfy the filtration anode electric cleaner of the requirement of environmental protection flue gas ash removal from now on.
In order to realize this purpose, the technical solution of the utility model is as follows: a kind of filtration anode electric cleaner, comprise air inlet, the gas outlet, air inlet is communicated with anode electric precipitation chamber, it is characterized in that anode electric precipitation chamber outer wall is provided with the cathode insulation chamber, the indoor metal anode filter bag that is provided with of anode electric precipitation, be provided with the cathode line that is connected with the cathode insulation chamber between the metal anode filter bag, anode electric precipitation chamber outer wall also is provided with cathode rapping, and metal anode filter bag top is provided with the blowback nozzle, and top, anode electric precipitation chamber is provided with the air-purifying chamber that communicates with the anode dirt pocket, air-purifying chamber is communicated with the gas outlet, and below, anode electric precipitation chamber is provided with ash bucket.
The present invention is by the lower resistance of electric precipitation and the high efficiency of hot properties and bag-type dust being organically combined, forming a kind of new efficient low-resistance net formula anode electric dust collector.It combines the advantage of two kinds of nonaqueous dust cleaners, has the efficiency of dust collection height, SR is low, easy to maintenance, the advantage that life-span is long, can satisfy the requirement of environmental protection flue gas ash removal from now on, overcome the obstacle of the existing further energy-saving and emission-reduction of cleaner of industries such as current steel mill, metallurgy, power station, building materials, chemical industry.Be fit to be applied to the accurate dedusting of flue gas of industries such as steel mill, metallurgy, power station, building materials, chemical industry, be particularly suitable for the accurate dedusting operation of high-temperature flue gas less than 600 ℃.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the enlarged drawing at A place
The specific embodiment
Among the figure: 1 unloading valve, 2 ash buckets, 3 air inlets, 4 cathode rappings, anode electric precipitation chambers 5,6 metal anode filter bags, 7 cathode line, 8 blowback nozzles, 9 pulsers, 10 high voltage sourcies, 11 air-purifying chambers, cathode insulation chambers 12,13 vibrators, 14 equipment supporters, 15 cloth bag cards, 16 gas outlets
Filtration anode electric cleaner shown in the figure, comprise air inlet 3, gas outlet 16, it is characterized in that air inlet 3 is communicated with anode electric precipitation chamber 5, anode electric precipitation chamber 5 outer walls are provided with cathode insulation chamber 12, be provided with a plurality of metal anode filter bags 6 in the anode electric precipitation chamber 5, be provided with the cathode line 7 that is connected with cathode insulation chamber 12 between the metal anode filter bag 6, anode electric precipitation chamber 5 outer walls also are provided with cathode rapping 4, metal anode filter bag 6 tops are provided with blowback nozzle 8,5 tops, anode electric precipitation chamber are provided with the air-purifying chamber 11 that communicates with anode electric precipitation chamber, and air-purifying chamber 11 is communicated with gas outlet 16, and 5 belows, anode electric precipitation chamber are provided with ash bucket 2.
Filtering the anode electric cleaner is that the cathode line of electric cleaner is designed between the cloth bag of original sack cleaner, cathode line 7 adopts traditional polar curves such as prickle wire, star-like line, high-tension electricity is undertaken charged by 7 pairs of dust of cathode line, charged dust overcomes Brownian movement trend anode under the effect of electric field force.
The anode that filters the anode electric cleaner replaces with metal anode filter bag 6, and metal anode filter bag 6 adopts wire to work out, and density is decided to be 20 orders~800 orders according to the dedusting object.Owing to adopted the operation principle of electric cleaner, charged dust tends to metal anode filter bag 6 under the effect of electric field force, can utilize the suction and the bridging effect of the electric field force of dust like this, metal anode filter bag 6 can adopt the not high filter screen of density, for the running resistance that reduces this filtration anode electric cleaner has been created condition.Simultaneously, owing to adopted the metal filtration bag, handle high-temperature flue gas and become natural thing again.
Described anode electric precipitation chamber 5 with former sack cleaner to advance smoke chamber identical, only increase cathode insulation chamber 12 and negative electrode pylon (not shown), cathode rapping 4.
High voltage source 10, negative electrode pylon, cathode rapping 4 can use high voltage source, negative electrode pylon, the cathode rapping of original electric cleaner to be transformed into high voltage source, negative electrode pylon, the cathode rapping of this filtration anode electric cleaner.
Cloth bag card 15, blowback nozzle 8, pulser 9, air-purifying chamber 11, vibrator 13, ash bucket 2, unloading valve 1, equipment supporter 14 belong to the original equipment of sack cleaner.The accessory that also has electric cleaner and sack cleaner to be equipped with usually resembles deflector, insulation, operating desk, various valve instruments or the like.
High temperature (low temperature) flue gas that needs to purify enters this filtration anode electric cleaner chamber 5 by air inlet 3, a plurality of cathode insulations chamber 12 is installed on the outer wall of anode electric precipitation chamber 5, in order to erecting the cathode line 7 between the metal anode filter bag 6, on the outer wall of anode electric precipitation chamber 5, also have cathode rapping 4 on time target line 7 carry out mechanical vibrator and remove and adhere to superincumbent dust; Cathode line 7 obtains the high voltage source of high voltage source 10 flue gases that enter in the efficient low-resistance filtration anode electric cleaner chamber 5 is carried out the charged of forceful electric power field force, charged dust in the flue gas is on the outer wall of trend metal anode filter bag 6 under the double acting of electric field force and flue gas gravitation, form the discrete particles layer that repels each other, when stratum granulosum reaches specific thickness, pulser 9 time openings, high pressure recoil gas blows into metal anode filter bag 6 by blowback nozzle 8 and carries out the processing of pulse backblowing deashing, so that guarantee under the flue gas lower resistance situation by metal anode filter bag 6, metal anode filter bag 6 is installed on the cloth bag card 15, and cloth bag card 15 separates anode electric precipitation chamber 5 and air-purifying chamber 11; Enter air-purifying chamber 11 through the flue gas that purifies by cloth bag card 15, go by gas outlet 16 outer being discharged in the follow-up flue again; Be provided with ash bucket 2 below the efficient low-resistance filtration anode electric cleaner chamber 5, ash bucket 2 is used for holding the dust of removing, dust runs up to a certain degree, by unloading valve 1 regular discharge to ash-transmission system, in order to prevent the dust caking in the ash bucket 2, on ash bucket 2, be provided with the work that vibrator 13 is carried out loosening dust.Whole equipment has the equipment supporter 14 of supported weight.
Effect of the present invention is:
(1) electric cleaner of relatively more existing four electric fields, owing to overcome the problem of secondary dust, dust removing effects is big The big raising; More original electric precipitation because rear level cloth bag checks on, do not had exhaust gas dust than resistance greater than 1 * 1013The puzzlement of flue gas ash removal poor effect. Generally speaking, the exhanst gas outlet dust concentration can reach 30mg/Nm3 Can satisfy discharge index existing and in the future environmental requirement.
(2) relatively existing sack cleaner, owing to set up cathode line, it is charged that flue gas is carried out high pressure, dedusting Effect is under the addition of filtration and static, and the SR of cloth bag greatly reduces, general operating pressure Between 500Pa~1000Pa, energy-saving effect is remarkable.
(3) use the metal anode filter bag, can improve the serviceability temperature of sack cleaner, less than 600 ℃ Satisfy the processing of the high temperature flue gases such as metallurgy, chemical industry in the situation.
(4) owing to adopted the metal anode filter bag, can avoid the probability of former cloth bag obstruction and broken bag, the service life of improving existing sack cleaner, maintenance, the maintenance workload of the existing sack cleaner of minimizing.
(5) owing to have above advantage, can transform existing electric cleaner on a grand scale, be particularly suitable for transforming the electric cleaner of existing three electric fields, so that satisfy the finishing of rigid index of energy-saving and emission-reduction.
(6) relatively satisfy 30mg/Nm 3Efflux the electric cleaner of dust index, the one-time investment of efficient low-resistance net formula anode electric cleaner can be saved 50% investment; Relatively satisfy 30mg/Nm 3Efflux the high temperature cloth bag dust collector of dust index, the one-time investment of high temperature electricity sack cleaner can be saved 30% investment.

Claims (4)

1, a kind of filtration anode electric cleaner, comprise air inlet, the gas outlet, air inlet is communicated with anode electric precipitation chamber, it is characterized in that anode electric precipitation chamber outer wall is provided with the cathode insulation chamber, the indoor metal anode filter bag that is provided with of anode electric precipitation, be provided with the cathode line that is connected with the cathode insulation chamber between the metal anode filter bag, anode electric precipitation chamber outer wall also is provided with cathode rapping, metal anode filter bag top is provided with the blowback nozzle, top, anode electric precipitation chamber is provided with the air-purifying chamber that communicates with the anode dirt pocket, and air-purifying chamber is communicated with the gas outlet, and below, anode electric precipitation chamber is provided with ash bucket.
2, filtration anode electric cleaner as claimed in claim 1 is characterized in that each metal anode filter bag top is equipped with a blowback nozzle, and the metal anode filter bag adopts wire to work out, and density is 20 orders~800 orders.
3, filtration anode electric cleaner as claimed in claim 1 or 2 is characterized in that cathode line adopts prickle wire, star-like line.
4, filtration anode electric cleaner as claimed in claim 1 or 2 is characterized in that anode electric precipitation chamber is communicated with by cloth bag card and air-purifying chamber, and the metal anode filter bag is installed on the cloth bag card.
CNU2008200562691U 2008-03-14 2008-03-14 Filteration anode electrostatic precipitator Expired - Fee Related CN201175681Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200562691U CN201175681Y (en) 2008-03-14 2008-03-14 Filteration anode electrostatic precipitator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200562691U CN201175681Y (en) 2008-03-14 2008-03-14 Filteration anode electrostatic precipitator

Publications (1)

Publication Number Publication Date
CN201175681Y true CN201175681Y (en) 2009-01-07

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102218373A (en) * 2010-01-29 2011-10-19 三星电子株式会社 Electric dust removing device and home appliance having the electric dust removing device
CN102481582A (en) * 2009-09-04 2012-05-30 优诺思气体技术公司 Device in connection with a circular precipitator for a two- stage electrostatic filter
CN107159466A (en) * 2017-06-22 2017-09-15 浙江菲达环保科技股份有限公司 A kind of composite metal net positive plate electric cleaner
CN107185714A (en) * 2017-06-22 2017-09-22 浙江菲达环保科技股份有限公司 Metal screen positive plate electric cleaner
CN107029888B (en) * 2017-04-28 2018-05-01 深圳市力德诺华科技有限公司 A kind of image force dust-collecting air purifier
CN108654837A (en) * 2018-06-08 2018-10-16 深圳市睿维盛环保科技有限公司 A kind of efficient composite dust pelletizing system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102481582A (en) * 2009-09-04 2012-05-30 优诺思气体技术公司 Device in connection with a circular precipitator for a two- stage electrostatic filter
CN102481582B (en) * 2009-09-04 2015-08-12 优诺思气体技术公司 The device be connected with the circular deduster for two-stage electrostatic filter
CN102218373A (en) * 2010-01-29 2011-10-19 三星电子株式会社 Electric dust removing device and home appliance having the electric dust removing device
CN102218373B (en) * 2010-01-29 2015-11-25 三星电子株式会社 Electric dust collector and there is the home appliance of this electric dust collector
CN107029888B (en) * 2017-04-28 2018-05-01 深圳市力德诺华科技有限公司 A kind of image force dust-collecting air purifier
CN107159466A (en) * 2017-06-22 2017-09-15 浙江菲达环保科技股份有限公司 A kind of composite metal net positive plate electric cleaner
CN107185714A (en) * 2017-06-22 2017-09-22 浙江菲达环保科技股份有限公司 Metal screen positive plate electric cleaner
CN108654837A (en) * 2018-06-08 2018-10-16 深圳市睿维盛环保科技有限公司 A kind of efficient composite dust pelletizing system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090107

Termination date: 20160314