CN103272697A - Chambered structure dust-collecting pole plate for wet-type electrostatic dust collection - Google Patents
Chambered structure dust-collecting pole plate for wet-type electrostatic dust collection Download PDFInfo
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- CN103272697A CN103272697A CN2013101628795A CN201310162879A CN103272697A CN 103272697 A CN103272697 A CN 103272697A CN 2013101628795 A CN2013101628795 A CN 2013101628795A CN 201310162879 A CN201310162879 A CN 201310162879A CN 103272697 A CN103272697 A CN 103272697A
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Abstract
The invention discloses a chambered structure dust-collecting pole plate for wet-type electrostatic dust collection, and belongs to the technical field of dust collection. The chambered structure dust-collecting pole plate is characterized in that the dust-collecting pole plate is a hollow pole plate, a porous material is adopted by a dust-collecting surface to guarantee the uniformity of a water film; the interior of the dust-collecting pole plate is divided into a plurality of chambers, partition plates among the chambers have through holes, the partition plates are capable of rotating along the central shaft or translating from top to the bottom; the multi-chamber structure is adopted and the water in each chamber is not full, the problems that the structure strength is poor and the water quantity permeation is non-uniform, caused by the fact that the water pressure of the hollow pole plate is gradually increased from top to the bottom, are solved. By rotating or translating the partition plates among the chambers from top to the bottom, the particles adhered on the inner surface of the porous material dust-collecting pole plate can be eliminated, the aim of recycling the water of the dust collector is realized, and the consumption of the water is reduced. An electrostatic dust collection system adopting the device disclosed by the invention is compact in structure, little in water amount, efficient and capable of realizing the large-scale application.
Description
Technical field
The present invention relates to a kind of wet static dedusting with dividing the cell structure dust collecting pole plate, belong to the dedusting technology field.
Background technology
A large amount of gaseous contaminants that mankind's activity produces and particle are just threatening human rely in the base substance of existence---clean air.Pellet (PM
10) fine particle (PM particularly
2.5) pollute and to have become outstanding atmospheric environment problem, and cause the great attention of countries in the world day by day.It has been recognized that Atmospheric particulates (particularly fine particle wherein) are the main causes that causes the human death rate to rise.Simultaneously, Atmospheric particulates also are the main causes that causes great atmosphere polluting problems such as atmospheric visibility reduction, acid rain, Global climate change and depletion of the ozone layer.The pollution of control fine particle is the great demand of global energy-saving and emission-reduction strategy.In quite long period, fine particle can not change as the basal conditions of the primary pollutant of China's atmosphere pollution.At present, China's atmosphere PM
2.5The high several times of concentration ratio developed country cause very big threat to health and socio-economic development, and the emission control of fine particle has been extremely urgent.
At present, very low for fine grain capture rate though the total particulate control technology can reach very high level in the world, cause the fine particle of enormous amount to enter in the ambient air.Be example with the coal fired power plant, though the efficiency of dust collection of existing dust arrester can be up to more than 99%, these dedusters are lower to the capture rate of fine particle.This part flying dust is based on the fine grained of particle diameter less than 2.5 microns even submicron order, can reach more than 90% of particle sum in the quantity of particle.This also is that China's overall suspended pellet (TSP) in atmosphere is downward trend year by year, under the situation that granular material discharged total amount also descends, and PM
2.5Reason in rising trend, therefore, particle control focus on fine particle, must seek more effective and technical development approach more targetedly.
Being devoted to improve and optimize the research that traditional pollutant control appliance removes the fine particle capturing ability both at home and abroad increases gradually.For example improve fibrous material and the structure of filter bag on traditional bag-type dust collecting equipment basis, pass through to increase methods such as middle high energy electrode on conventional electrostatic cleaner basis.Under stricter fine particle discharge standard, adopt any single technology that removes all can't satisfy the demands, it is urgent day by day therefore to develop different control modes cooperation-removal technology.
With electrostatic field be remove mechanism electrostatic precipitator as fume dust remover commonly used at present, obtain very general application at electric power enterprise and cement industry.Utilizing electrostatic field to remove particle mainly is that electrostatic force is applied directly on the particle in industrial application, makes charging particle, and moves on the different in nature electrode, thereby realize removing.In the practical operation, how produce corona discharge with high voltage direct current at two interpolars, dust-contained airflow is by between two electrodes during electric field, and particle is forced to charged, and charged particle captures to opposite polarity pole plate motion and by pole plate under the effect of electrostatic force.
Electric cleaner has good removal effect for the large-size particles thing, but not high for the removal efficiency of granule especially fine particle.In order to remove fine particle better, multistage electric field often is set, to improve the removal efficiency to particle as much as possible in practical engineering application.But utilize this method, also not obvious to the raising of efficiency of dust collection.The fine particle that a major reason that causes this phenomenon is exactly this particle size range is easy to follow flow of flue gas, a little less than the horizontal proliferation, and reentrainment of dust may take place.How to strengthen electrostatic field and laterally act on the important development direction that remains raising fine particle arresting efficiency.Industrialized wet static dedusting device all adopts pole plate to apply the moisture film technology at present, such as Chinese patent 00215471.4,200410058967.1 etc.The method that applies moisture film all adopts to the mode of polar board surface water spray carries out, for avoiding imperfect dust collecting pole plate corrosion and the efficiency of dust collection that causes of the dried district of the local formation of polar board surface or moisture film low, need spray into a large amount of water and keep the normal operation of system, certainly will cause the increase of water consumption like this.Chinese patent 20111048292.7 has proposed a kind of testing arrangement of dust collecting pole plate liquid film of wet cottrell, can monitor polar board surface and district's problem whether occur doing.
In sum, how providing a kind of effective assurance pole plate liquid film to cover complete wet static dedusting device, reduce the consumption of water when realizing efficiently removing particle, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
The purpose of this invention is to provide a kind of low water consumption, high efficiency wet static dedusting with dividing the cell structure dust collecting pole plate.
The objective of the invention is to be achieved through the following technical solutions:
A kind of wet static dedusting is with dividing the cell structure dust collecting pole plate, and it is characterized in that: described dust collecting pole plate is the hollow pole plate, and the inside of hollow pole plate is divided into a plurality of chambers; The face that gathers dust of dust collecting pole plate adopts porous material; Be furnished with intercommunicating pore on the dividing plate between chamber; Dividing plate is around central shaft rotation or upper and lower translation.
Wet static dedusting of the present invention is with dividing the cell structure dust collecting pole plate, and the described face porous material that gathers dust adopts the one or more combination in metal, metal alloy, pottery, macromolecular compound, carbon, glass or the linen-cotton.
It is 1～10mm that wet static dedusting of the present invention is used the inner surface spacing of dividing cell structure dust collecting pole plate, hollow pole plate to gather dust face.
Wet static dedusting of the present invention is with dividing the cell structure dust collecting pole plate, and the intercommunicating pore diameter on the dividing plate between described adjacent chamber is 0.1～10mm.
The present invention compared with prior art, have the following advantages and the high-lighting effect: the present invention is owing to adopted hollow pole plate and inside to be divided into a plurality of chamber structures, moisture is in not full state in each chamber, can guarantee that the upper water surface pressure in the chamber is close with dedusting pole plate outer gas stream pressure, the high hydraulic pressure problem when having avoided the no diaphragm structure in highly bigger hollow pole plate inside; When containing solid particulate matter in the water that adds, be attached to the particle that porous material dust collecting pole plate inner surface adheres to by rotating dividing plate or the upper and lower translation between each chamber, can removing, adopt such measure, can realize the purpose of deduster cycling use of water, reduce the consumption of water.
Description of drawings
Fig. 1 uses for wet static dedusting and divides cell structure dust collecting pole plate schematic diagram.
Fig. 2 is dust collecting pole plate internal structure and water surface site schematic diagram.
Fig. 3 is that the dividing plate between adjacent chamber rotates the back schematic diagram around central shaft.
Among the figure: the 1-chamber; The 2-face that gathers dust; The 3-dividing plate; The 4-intercommunicating pore.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention, structure and the course of work are described further.
Fig. 1 is wet static dedusting provided by the invention branch cell structure dust collecting pole plate schematic diagram, and described dust collecting pole plate is the hollow pole plate, and the inside of hollow pole plate is divided into a plurality of chambers 1; The face that gathers dust 2 of dust collecting pole plate adopts porous material, and porous material adopts the one or more combination in metal, metal alloy, pottery, macromolecular compound, carbon, glass or the linen-cotton.Be furnished with intercommunicating pore 4 on the dividing plate 3 between chamber, the intercommunicating pore diameter is 0.1～10mm.Dividing plate 3 can be around central shaft rotation or upper and lower translation.The gather dust inner surface spacing of face of hollow pole plate is 1～10mm.
Principle of the present invention is: dust collecting pole plate is hollow structure, inside is divided into a plurality of chambers, avoid water to be full of whole space in each chamber, slot milling on the water surface, guarantee that this space internal pressure equates substantially with porous material pole plate outer surface gas pressure, make the lower state of hydraulic pressure maintenance in each chamber like this, inhomogeneous with the water yield of avoiding the too high polar board surface that brings of hydraulic pressure to penetrate from inside to outside, and reduced the face that gathers dust pressure from inside to outside, reducing it is the manufacture difficulty of gaining in strength and bringing.The dust collecting pole plate surface adopts porous material to constitute, and water is flowed out by internal penetration, forms the even moisture film on dust collecting pole plate surface, and has reduced water consumption.When containing solid particulate matter in the water that adds, by the dividing plate between rotation or each chamber of upper and lower translation, can remove and be attached to the particle that porous material dust collecting pole plate inner surface adheres to, adopt such measure, can realize the purpose of deduster cycling use of water, reduce the consumption of water.
The course of work of the present invention is as follows:
1) recirculated water or clean water enter the top chamber 1 of hollow pole plate, and enter into subordinate's chamber by the bottom baffles 3 of this chamber, with this order, water can flow to the chamber of all dust collecting pole plates, and in each chamber, infiltrate into the outer surface of the face of gathering dust by the porous material of the face of gathering dust 2, form moisture film.Water in each chamber should be in not full state.
2) when system adopts recirculated water, can retain the granular deposit in the recirculated water in the chamber of hollow pole plate, need periodic cleaning.During cleaning, by the dividing plate of the rotation of conventional mechanical structure or each chamber of upper and lower translation, the particle that the face inner surface that gathers dust adheres to is removed, and discharged by the bottom of dust collecting pole plate.
Claims (4)
1. a wet static dedusting is with dividing the cell structure dust collecting pole plate, and it is characterized in that: described dust collecting pole plate is the hollow pole plate, and the inside of hollow pole plate is divided into a plurality of chambers (1); The face that gathers dust (2) of dust collecting pole plate adopts porous material; Be furnished with intercommunicating pore (4) on the dividing plate between chamber (3); Dividing plate (3) is around central shaft rotation or upper and lower translation.
2. use according to the described wet static dedusting of claim 1 and divide the cell structure dust collecting pole plate, it is characterized in that: the described face porous material that gathers dust adopts the one or more combination in metal, metal alloy, pottery, macromolecular compound, carbon, glass or the linen-cotton.
According to the described wet static dedusting of claim 1 with dividing a cell structure dust collecting pole plate, it is characterized in that: the gather dust inner surface spacing of face of hollow pole plate is 1～10mm.
4. use according to the described wet static dedusting of claim 1 and divide the cell structure dust collecting pole plate, it is characterized in that: the intercommunicating pore diameter on the dividing plate between described adjacent chamber is 0.1～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310162879.5A CN103272697B (en) | 2013-05-06 | 2013-05-06 | A kind of wet static dedusting chamber structure dust collecting pole plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310162879.5A CN103272697B (en) | 2013-05-06 | 2013-05-06 | A kind of wet static dedusting chamber structure dust collecting pole plate |
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| CN103272697A true CN103272697A (en) | 2013-09-04 |
| CN103272697B CN103272697B (en) | 2016-01-13 |
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| CN201310162879.5A Expired - Fee Related CN103272697B (en) | 2013-05-06 | 2013-05-06 | A kind of wet static dedusting chamber structure dust collecting pole plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736604A (en) * | 2013-12-20 | 2014-04-23 | 华北电力大学（保定） | Cyclone wet type electrostatic dust collector |
Citations (6)
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| JP2003010733A (en) * | 2001-06-29 | 2003-01-14 | Kawasaki Steel Corp | Polar plate for flat plate type electrostatic precipitator |
| JP2005288230A (en) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | Dust collecting device and air-conditioner |
| CN101301638A (en) * | 2008-07-03 | 2008-11-12 | 孟金来 | Electrostatic precipitator with high-efficiency dust collecting pole |
| CN101884953A (en) * | 2009-05-12 | 2010-11-17 | 三星电子株式会社 | Electric cleaner |
| CN102847407A (en) * | 2012-09-10 | 2013-01-02 | 清华大学 | Particle agglomerating board component, bipolar particle agglomerating device, and dust collector |
| CN103008109A (en) * | 2012-12-18 | 2013-04-03 | 清华大学 | Hollow polar plate electrostatic dust removing device made of porous medium material and method |
-
2013
- 2013-05-06 CN CN201310162879.5A patent/CN103272697B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010733A (en) * | 2001-06-29 | 2003-01-14 | Kawasaki Steel Corp | Polar plate for flat plate type electrostatic precipitator |
| JP2005288230A (en) * | 2004-03-31 | 2005-10-20 | Matsushita Electric Ind Co Ltd | Dust collecting device and air-conditioner |
| CN101301638A (en) * | 2008-07-03 | 2008-11-12 | 孟金来 | Electrostatic precipitator with high-efficiency dust collecting pole |
| CN101884953A (en) * | 2009-05-12 | 2010-11-17 | 三星电子株式会社 | Electric cleaner |
| CN102847407A (en) * | 2012-09-10 | 2013-01-02 | 清华大学 | Particle agglomerating board component, bipolar particle agglomerating device, and dust collector |
| CN103008109A (en) * | 2012-12-18 | 2013-04-03 | 清华大学 | Hollow polar plate electrostatic dust removing device made of porous medium material and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736604A (en) * | 2013-12-20 | 2014-04-23 | 华北电力大学（保定） | Cyclone wet type electrostatic dust collector |
| CN103736604B (en) * | 2013-12-20 | 2019-01-01 | 华北电力大学（保定） | A kind of cyclone wet type electrostatic dust collector |
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| CN103272697B (en) | 2016-01-13 |
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