CN201930847U - Semi-dry method electrostatic precipitator - Google Patents
Semi-dry method electrostatic precipitator Download PDFInfo
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- CN201930847U CN201930847U CN2011200407128U CN201120040712U CN201930847U CN 201930847 U CN201930847 U CN 201930847U CN 2011200407128 U CN2011200407128 U CN 2011200407128U CN 201120040712 U CN201120040712 U CN 201120040712U CN 201930847 U CN201930847 U CN 201930847U
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- electrostatic precipitator
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Abstract
The utility model relates to a semi-dry method electrostatic precipitator, which comprises a shell body. A plurality of groups of polar plate rings are installed in the shell body, and each polar plate ring is composed of a chain ring and a plurality of dust collecting polar plates sequentially connected on the chain ring. The two ends of each chain ring are respectively connected with a driving sprocket and a driven sprocket, and the driving sprocket is connected with a polar plate driving motor. Frames are arranged in the polar plate rings and between each polar plate ring and each polar plate ring, and corona poles are uniformly distributed on the frame. The outer side of each polar plate ring and the inner part of each polar plate ring are provided with revolving brushes which are parallel with and are contacted with the dust collecting polar plates, and the revolving brushes are close to the lower end of each polar plate ring and are connected with a brush driving motor. The bottom of the shell body is filled with a cleaning solution, and the revolving brushes and the dust collecting polar plates of the lower ends of the polar plate rings are immersed into the cleaning solution. The semi-dry method electrostatic precipitator adopts the revolving brushes immersed into the cleaning solution to clean dust on the dust collecting polar plates, solving the problem of secondary blowing dust after vibrating. The dust on the polar plates is thoroughly removed, and back corona is avoided. Meanwhile, a high-voltage power supply does not needed to be turned off during cleaning, and the semi-dry method electrostatic precipitator has a good dust removal characteristic.
Description
Technical field
The utility model relates to a kind of electrostatic precipitator, relates in particular to a kind of semidry method electrostatic precipitator of collecting dust, wet method deashing raising dust removing effects by dry method, is mainly used in the dust pollution thing of removing in the gas.
Background technology
Electrostatic precipitator is a kind of industrial equipment that relies on static to collect dust.Its course of work is as follows: (1) is applied on the corona wire from the high voltage of high voltage source, and corona wire produces corona discharge, and forms electrostatic field; (2) the flow through dust in flue gas of electric field is produced positive and negative ion behind the corona discharge; (3) carry different electrical dust and under electric field action, move, be collected on the dust collecting pole plate toward both sides.Be collected into the dust on the dust collecting pole plate, be originally that the method by rapping makes dust break away from from pole plate, this dry method deashing that is called; Perhaps adopt current flushing pole plate and wash away dust, this wet method deashing that is called.
Method by rapping from the deduster that pole plate breaks away from, is called the dry method electrostatic precipitator to dust; With current dust from the deduster that pole plate washes away, be called the wet method electrostatic collector device.
There are two inherent shortcomings in the dry method electrostatic precipitator: rapping reentrainment of dust and anti-corona problem on the dedusting characteristics.Method by rapping breaks away from dust from pole plate process must cause the secondary fly-up of dust, and the dust of these secondary fly-ups may directly enter atmosphere, and the dust of secondary fly-up can account at most discharges 50% of deduster Dust Capacity.Electrostatic precipitator is higher than 10 in processing
9During the high resistance dust of Ω m, can form continuous dust layer on the dust collecting pole plate, cause the deposition of electric charge and cause the generation of anti-corona.Anti-corona can reduce the quantity of electric charge of dust, causes these dust not to be collected, and directly enters atmosphere.Under anti-corona serious situation, the dust that cation can make the bear electricity is positive electricity on the lotus again, deposits on the discharge electrode.Above-mentioned two kinds of phenomenons have weakened the efficiency of dust collection of electric cleaner, and the dry method electrostatic precipitator mainly improves dust-collecting efficiency by increasing specific collection area at present, but this just causes the very tall and big occasion of dry method electrostatic precipitator needs, and cost is very huge.
The wet method electrostatic collector device, in running, need be to the dust collecting pole plate deashing of spraying water.The mode of water spray mainly contains two kinds, and a kind of is at dust remover roof water pipe to be installed, and water pipe is to the dust collecting pole plate continuous water supply, and current form continuous moisture film from top to down on dust collecting pole plate.In order to keep uniform moisture film on dust collecting pole plate, the height of the dust collecting pole plate of this class deduster generally is no more than 6m, is difficult to satisfy the requirement that electrostatic precipitator maximizes.Another kind of water spray means is that atomizer is installed, and possesses the water smoke or the water droplet of certain speed to the dust collecting pole plate ejection.And water smoke or water droplet can be collected on the dust collecting pole plate under effect of electric field, and electric field can form serious flashover in this process.For fear of serious flashover problem, need in spraying, close high voltage supply, the performance of deduster in the time of will influencing spraying like this.In addition, the wet method electrostatic collector device needs complicated water injection system, makes the cost of wet method electrostatic collector device also high.
Summary of the invention
The utility model mainly solves the problem that original dry method electrostatic precipitator exists rapping reentrainment of dust and anti-corona, has weakened the efficiency of dust collection of electric cleaner; Original wet method electrostatic collector device need cut out high voltage supply for fear of serious flashover problem in spraying, the technical problem of the performance of deduster during the influence spraying; A kind of semidry method electrostatic precipitator is provided, and it has effectively avoided the problem of rapping reentrainment of dust and anti-corona, has also avoided the flashover problem, and cleaning performance is very good, and does not need to close high voltage supply during deashing, has greatly improved efficiency of dust collection, also reduces cost.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises housing and is located at the some groups of interior pole plate rings that be arranged in parallel of housing, described pole plate ring comprises chain link and is connected to some dust collecting pole plates on the chain link in turn, one end of described chain link links to each other with drive sprocket, the other end of chain link links to each other with driven sprocket, described drive sprocket links to each other with the pole plate drive motors by driving shaft, described pole plate interannular is provided with corona discharge electrode, be provided with some rotating brushes in the described housing, described rotating brush is near the lower end of pole plate ring, the rotating shaft of rotating brush is parallel with dust collecting pole plate, the bristle of rotating brush contacts with dust collecting pole plate, the rotating shaft of rotating brush links to each other with the brush-driven motor, the bottom filling of described housing has cleaning fluid, and described rotating brush is immersed in the cleaning fluid.The utility model has two zones, and one is the zone of gathering dust of cleaning the drying of liquid level top, and another is the cleaning zone of cleaning the liquid level below.The pole plate drive motors drives the drive sprocket rotation, drives the rotation of driven sprocket and chain link again, and dust collecting pole plate is driven by chain link and makes loop movement.The rotation of brush-driven driven by motor rotating brush.Dust collecting pole plate moves to when cleaning the liquid level top, collects dust in flue gas; Move to when cleaning the liquid level below, be subjected to scrubbing of rotating brush.Dust collecting pole plate after being cleaned moves to and cleans liquid level top collection dust in flue gas, goes round and begins again like this to finish continuously and gathers dust and two courses of work of deashing.Cleaning fluid can be water or other liquid in the utility model, and the direction of rotation of rotating brush is opposite with the direction of motion of dust collecting pole plate.The utility model adopts rotating brush and cleaning fluid that dust collecting pole plate is carried out deashing and handles, effectively avoided the problem of rapping reentrainment of dust and anti-corona, also avoided the flashover problem, cleaning performance is very good, and do not need to close high voltage supply during deashing, greatly improved efficiency of dust collection, also reduced cost.
As preferably, be provided with framework in the described pole plate ring and between pole plate ring and the pole plate ring, framework hangs on the porcelain vase at the top that is positioned at described housing, and described corona discharge electrode is distributed on the described framework.Under the effect of high-tension electricity, corona discharge electrode and dust collecting pole plate produce electric field, and produce corona current, and the dust in flue gas of the electric field of flowing through is collected on the dust collecting pole plate under electric field action.Dust all can be collected in the positive and negative of dust collecting pole plate of the present utility model, improves efficiency of dust collection.
As preferably, the inside of the outside of described pole plate ring and pole plate ring is equipped with described rotating brush.The dust that adheres on positive and negative two surfaces of rotating brush to dust collecting pole plate all can be scrubbed, and improves cleaning performance.
As preferably, the bristle of described rotating brush is bending.Guarantee that rotating brush reduces the wearing and tearing to the dust collecting pole plate surface when scrubbing dust collecting pole plate, prolong the service life of deduster.
As preferably, described brush-driven motor is a buncher.Change the movement velocity that to regulate rotating brush according to operating condition, to guarantee stable dust removing effects.
As preferably, the longitudinal section of the bottom of described housing is inverted taper, is connected with defeated grey equipment at cone tip part.Scrubbed the dust that gets off and stay in the cleaning fluid, tapered housing bottom is convenient to dust and is focused on cone tip part, discharges by defeated grey equipment again.If the density of dust, then need be set up defeated grey equipment less than the density of cleaning fluid near liquid level.
The beneficial effects of the utility model are: adopt the dust on the rotating brush cleaning dust collecting pole plate that immerses in the cleaning fluid, eliminated rapping reentrainment of dust problem, and employing brushes the method that adds washing, the pole plate deashing is thorough, can not form continuous dust layer in the process of in electric field, gathering dust, eliminate the precondition that produces anti-corona, had better dust removal performance.And cleaning effect of the present utility model is better than the mode of traditional hydroblasting, solved the conventional wet deduster can't form complete covering pole plate moisture film on superelevation pole plate more than 6 meters problem, do not need to close high voltage source when cleaning simultaneously, effectively improve dust removal performance.The utility model can make up the electric field of height more than 10 meters, can be used in especially big flow flue gas ash removals such as thermal power plant's fire coal boiler fume, has advantages such as the floor space of reduction, saving deashing water, has also reduced equipment manufacturing cost.
Description of drawings
Fig. 1 is a kind of main TV structure schematic diagram of the present utility model.
Fig. 2 is a kind of side-looking structural representation of the present utility model.
Fig. 3 is a kind of perspective view of the present utility model.
1. housings among the figure, 2. chain link, 3. dust collecting pole plate, 4. drive sprocket, 5. driven sprocket, 6. pole plate drive motors, 7. corona discharge electrode, 8. rotating brush, 9. brush-driven motor, 10. cleaning fluid, 11. frameworks, 12. defeated grey equipment.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the semidry method electrostatic precipitator of present embodiment, as shown in Figure 1 and Figure 2, comprise housing 1, the pole plate ring that many groups be arranged in parallel is installed in the housing 1, each pole plate ring comprises chain link 2 and is connected to polylith dust collecting pole plate 3 on the chain link 2 in turn, one end of chain link 2 links to each other with drive sprocket 4, and the other end of chain link 2 links to each other with driven sprocket 5, and drive sprocket 4 links to each other with pole plate drive motors 6 by driving shaft.As shown in Figure 3, in the pole plate ring and between pole plate ring and the pole plate ring framework 11 is arranged all, framework 11 hangs on the porcelain vase at the top that is positioned at housing 1, is evenly equipped with corona discharge electrode 7 on the framework 11.In the present embodiment, the pole plate ring be arranged as about every 900mm one ring, corona discharge electrode 7 is one group of about every 450mm.Chain link 2 adopts standard carrier chain, the about 100mm of pitch.Per 5～7 pitch chain bars hang a dust collecting pole plate, and promptly the Nominal Width of dust collecting pole plate is 500～700mm.The inside of the outside of pole plate ring and pole plate ring all is equipped with rotating brush 8, rotating brush 8 is near the lower end of pole plate ring, the rotating shaft of rotating brush 8 is parallel with dust collecting pole plate 3, the bristle that the bristle of rotating brush 8 is bending and rotating brush 8 contacts with dust collecting pole plate 3, the rotating shaft of rotating brush 8 links to each other with brush-driven motor 9, and brush-driven motor 9 is a buncher.The bottom filling of housing 1 has cleaning fluid 10, and a part of dust collecting pole plate 3 of rotating brush 8 and pole plate ring lower end is immersed in the cleaning fluid 10.The longitudinal section of the bottom of housing 1 is inverted taper, is connected with defeated grey equipment 12 at cone tip part.
Present embodiment has two zones, and one is the zone of gathering dust of cleaning the drying of liquid level top, and another is the cleaning zone of cleaning the liquid level below.The pole plate drive motors drives the drive sprocket rotation, drives the rotation of driven sprocket and chain link again, and dust collecting pole plate is driven by chain link and makes loop movement.Under the effect of high-tension electricity, corona discharge electrode and dust collecting pole plate produce electric field, and produce corona current, and the dust in flue gas of the electric field of flowing through is collected on the dust collecting pole plate under electric field action.The rotation of brush-driven driven by motor rotating brush.Dust collecting pole plate moves to when cleaning the liquid level top, collects dust in flue gas; Move to when cleaning the liquid level below, be subjected to scrubbing of rotating brush.Dust collecting pole plate after being cleaned moves to and cleans liquid level top collection dust in flue gas, goes round and begins again like this to finish continuously and gathers dust and two courses of work of deashing.The utility model adopts and brushes the method that adds washing, and the pole plate deashing is thorough, effectively improves dust removal performance.
When dust in flue gas concentration not high, such as less than 1g/Nm
3The time, the semidry method electrostatic precipitator can be used separately.And when dust in flue gas concentration is higher, in order to reduce the total amount of sewage disposal, traditional dry method electrostatic precipitator can be set by the front end in system to be solved, this deduster is removed dust by the method as the rapping pole plate, at the latter half of system semidry method electrostatic precipitator of the present utility model is installed.Dusty gas is earlier by traditional dry method electrostatic precipitator, and dust concentration reduces, and then enters semidry method electrostatic precipitator of the present utility model, improves dust removing effects.
Claims (6)
1. semidry method electrostatic precipitator, comprise housing (1) and be located at the some groups of interior pole plate rings that be arranged in parallel of housing (1), described pole plate ring comprises chain link (2) and is connected to some dust collecting pole plates (3) on the chain link (2) in turn, one end of described chain link (2) links to each other with drive sprocket (4), the other end of chain link (2) links to each other with driven sprocket (5), described drive sprocket (4) links to each other with pole plate drive motors (6) by driving shaft, described pole plate interannular is provided with corona discharge electrode (7), it is characterized in that being provided with in the described housing (1) some rotating brushes (8), described rotating brush (8) is near the lower end of pole plate ring, the rotating shaft of rotating brush (8) is parallel with dust collecting pole plate (3), the bristle of rotating brush (8) contacts with dust collecting pole plate (3), the rotating shaft of rotating brush (8) links to each other with brush-driven motor (9), the bottom filling of described housing (1) has cleaning fluid (10), and described rotating brush (8) is immersed in the cleaning fluid (10).
2. semidry method electrostatic precipitator according to claim 1, it is characterized in that being provided with framework (11) in the described pole plate ring and between pole plate ring and the pole plate ring, framework (11) hangs on the porcelain vase at the top that is positioned at described housing (1), and described corona discharge electrode (7) is distributed on the described framework (11).
3. semidry method electrostatic precipitator according to claim 1 is characterized in that the outside of described pole plate ring and the inside of pole plate ring are equipped with described rotating brush (8).
4. according to claim 1 or 3 described semidry method electrostatic precipitator, it is characterized in that the bristle of described rotating brush (8) is bending.
5. according to claim 1 or 3 described semidry method electrostatic precipitator, it is characterized in that described brush-driven motor (9) is a buncher.
6. according to claim 1 or 2 or 3 described semidry method electrostatic precipitator, it is characterized in that the longitudinal section of the bottom of described housing (1) is inverted taper, be connected with defeated grey equipment (12) at cone tip part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200407128U CN201930847U (en) | 2011-02-17 | 2011-02-17 | Semi-dry method electrostatic precipitator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200407128U CN201930847U (en) | 2011-02-17 | 2011-02-17 | Semi-dry method electrostatic precipitator |
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| CN201930847U true CN201930847U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200407128U Expired - Fee Related CN201930847U (en) | 2011-02-17 | 2011-02-17 | Semi-dry method electrostatic precipitator |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878068A (en) * | 2014-03-19 | 2014-06-25 | 中国科学院过程工程研究所 | Semi-wet static gas dedusting and purifying device |
| CN105214839A (en) * | 2015-10-21 | 2016-01-06 | 国电南京自动化股份有限公司 | A kind of wet type demister |
| CN105854476A (en) * | 2016-04-01 | 2016-08-17 | 杨溢 | Air purifier |
| CN106140480A (en) * | 2016-08-30 | 2016-11-23 | 艾尼科环保技术(安徽)有限公司 | A kind of wet type flexibility Mobile pole plate electrostatic precipitator of band rotating brush |
| CN106423563A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Wet flexible movable polar plate electrostatic precipitator with polar plate spraying devices |
| CN106423557A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Novel dry and wet compound type electrostatic precipitator |
| CN106540809A (en) * | 2015-09-16 | 2017-03-29 | 武汉科技大学 | A kind of water logging self-cleaning cloth roller shutter wet electrostatic dust arrester installation |
| CN107261722A (en) * | 2017-07-20 | 2017-10-20 | 清华大学 | A kind of rotating cage type air purifier |
| CN107433229A (en) * | 2017-09-05 | 2017-12-05 | 华中科技大学 | A kind of haze collector unit based on corona discharge and except haze device |
| CN108031556A (en) * | 2018-01-10 | 2018-05-15 | 厦门绿洋环境技术股份有限公司 | One kind rotation pole plate electric dust collector and electric precipitator |
| CN108057524A (en) * | 2017-10-31 | 2018-05-22 | 青岛海尔智能技术研发有限公司 | A kind of air purification air-supply arrangement and its control method |
| CN109746121A (en) * | 2018-12-25 | 2019-05-14 | 袁野 | A kind of dust cleaning apparatus system applied to electric precipitator end |
| CN110252511A (en) * | 2019-05-23 | 2019-09-20 | 武汉科技大学 | A kind of wet static dedusting device |
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2011
- 2011-02-17 CN CN2011200407128U patent/CN201930847U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878068B (en) * | 2014-03-19 | 2017-06-09 | 中国科学院过程工程研究所 | A kind of half wet electrostatic dedusting purifier |
| CN103878068A (en) * | 2014-03-19 | 2014-06-25 | 中国科学院过程工程研究所 | Semi-wet static gas dedusting and purifying device |
| CN106540809A (en) * | 2015-09-16 | 2017-03-29 | 武汉科技大学 | A kind of water logging self-cleaning cloth roller shutter wet electrostatic dust arrester installation |
| CN105214839A (en) * | 2015-10-21 | 2016-01-06 | 国电南京自动化股份有限公司 | A kind of wet type demister |
| CN105854476B (en) * | 2016-04-01 | 2018-03-06 | 杨溢 | A kind of air purifier |
| CN105854476A (en) * | 2016-04-01 | 2016-08-17 | 杨溢 | Air purifier |
| CN106140480A (en) * | 2016-08-30 | 2016-11-23 | 艾尼科环保技术(安徽)有限公司 | A kind of wet type flexibility Mobile pole plate electrostatic precipitator of band rotating brush |
| CN106423563A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Wet flexible movable polar plate electrostatic precipitator with polar plate spraying devices |
| CN106423557A (en) * | 2016-08-30 | 2017-02-22 | 艾尼科环保技术(安徽)有限公司 | Novel dry and wet compound type electrostatic precipitator |
| CN107261722A (en) * | 2017-07-20 | 2017-10-20 | 清华大学 | A kind of rotating cage type air purifier |
| CN107433229A (en) * | 2017-09-05 | 2017-12-05 | 华中科技大学 | A kind of haze collector unit based on corona discharge and except haze device |
| CN107433229B (en) * | 2017-09-05 | 2023-04-21 | 华中科技大学 | Haze collecting unit and haze removing device based on corona discharge |
| CN108057524A (en) * | 2017-10-31 | 2018-05-22 | 青岛海尔智能技术研发有限公司 | A kind of air purification air-supply arrangement and its control method |
| CN108031556A (en) * | 2018-01-10 | 2018-05-15 | 厦门绿洋环境技术股份有限公司 | One kind rotation pole plate electric dust collector and electric precipitator |
| CN109746121A (en) * | 2018-12-25 | 2019-05-14 | 袁野 | A kind of dust cleaning apparatus system applied to electric precipitator end |
| CN110252511A (en) * | 2019-05-23 | 2019-09-20 | 武汉科技大学 | A kind of wet static dedusting device |
| CN110252511B (en) * | 2019-05-23 | 2020-11-24 | 武汉科技大学 | Wet electrostatic dust collector |
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Legal Events
| Date | Code | Title | Description |
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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 |
Granted publication date: 20110817 Termination date: 20200217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |