CN104492603A - Wire-plate matching model of metal ceramic electric dust remover and ash removal mode - Google Patents
Wire-plate matching model of metal ceramic electric dust remover and ash removal mode Download PDFInfo
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- CN104492603A CN104492603A CN201410796412.0A CN201410796412A CN104492603A CN 104492603 A CN104492603 A CN 104492603A CN 201410796412 A CN201410796412 A CN 201410796412A CN 104492603 A CN104492603 A CN 104492603A
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- Prior art keywords
- dust
- cermet
- ash removal
- dust collecting
- water
- Prior art date
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- 239000000428 dust Substances 0.000 title claims abstract description 76
- 239000002184 metal Substances 0.000 title abstract description 5
- 239000000919 ceramic Substances 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 239000011195 cermet Substances 0.000 claims description 50
- 238000010926 purge Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 210000001736 Capillaries Anatomy 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 230000000979 retarding Effects 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000414 obstructive Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Abstract
The invention provides a wire-plate matching model of a metal ceramic electric dust remover and an ash removal mode. The wire-plate matching model is characterized in that a dust collecting electrode and a corona electrode are made from a metal ceramic material which is high-temperature-resistant, corrosion-resistant, high in strength and good in conductivity; ventilating and permeable but dust retarding micropores are formed in the metal ceramic dust collecting electrode and the corona electrode for high-temperature and normal-temperature flue gas dust removal; the corona electrode is of a hollow structure inside and is reversely blown to remove ash by virtue of a pneumatic blowing device; the dust collecting electrode has two ash removal modes of dry type pneumatic blowing ash removal and wet microporous water-seepage ash removal. When the wet ash removal is adopted, the microporous structure of the dust collecting electrode has capillary action on ash removal water, so that ash removal water films on the surface of a polar plate are uniformly distributed, and meanwhile, the polar plate is prevented from being corroded.
Description
Art
The invention belongs to environment protection equipment, particularly relate to a kind of cermet electric cleaner pole distribution type formula and purge mode thereof.
Background technology
Wet electrical dust precipitator is that the water membrane utilizing it to be formed on dust collecting pole plate cleans the dust be trapped on pole plate.Compared with dry electric precipitation device: wet electrical dust precipitator does not need rapping apparatus, thus eliminate the reentrainment of dust that rapping causes, prevent air-flow and the wind-induced reentrainment of dust of corona; Owing to pole plate being dispersed with all the time the moisture film flowed downward, the dust (flue dust) become trapped on pole plate is rinsed out by moisture film immediately, thus for high resistivity dust (flue dust), can not inverse corona be there is, avoid the reentrainment of dust caused thus; For low resistivity dust (flue dust), the particle that can not be captured flees from pole plate, again the phenomenon of Returning flow.Due to above-mentioned advantage, wet electrical dust precipitator has very high efficiency of dust collection, can adapt to the dust of various ratio resistance, meets quite harsh granular material discharged standard.
Existing wet electrical dust precipitator dust collector pole mostly is board-like or drum type brake.Because moisture film in wet electrical dust precipitator relies on gravity to flow downward voluntarily on pole plate, if meet with obstruction or the Geometrical change of polar board surface, the flow direction will be changed, the phenomenon such as " confluxing ", " branch " occurs, and can not form complete uniform ash removing water film below pole plate, the dust in these places can not clean out in time, more long-pending thicker, cause corona discharge electrode to discharge to sedimentating dust, even can affect electric cleaner and power, cause deduster normally to run.Current Thermal generation unit is often larger, larger requirement be it is also proposed to deduster smoke treatment amount, this also causes the design size of corresponding wet electrical dust precipitator larger, and more than ten meter even the pole plate height of more than 20 meter will make being uniformly distributed of moisture film on pole plate more difficult.Traditional wet electrical dust precipitator uses steel dust collecting pole plate, and steel dust collecting pole plate inherently occupies major part in cost drops into.In addition, the environment that gathers dust of wet type can cause heavy corrosion to common steel pole plate.In addition, wet electrical dust precipitator, in order to the dust collection of trapping being got up, often needs a large amount of deashing water, this can not meet the requirement of the intensive utilization to water resource, and a large amount of deashing water can be produced, secondary pollution is caused to environment, is also unfavorable for the comprehensive utilization of flyash.
Summary of the invention
The invention provides a kind of cermet electric cleaner pole distribution type formula and purge mode thereof, to solve the problem that wet electrical dust precipitator dust collecting pole plate cannot be formed complete uniform moisture film and bulk erosion, enable electric cleaner on the basis of coal-burning power plant's stable operation, can reduce cost of investment, reduce burn into reduce water consumption, improve efficiency of dust collection, especially the present invention can be applicable in high-temperature flue gas environment.
For achieving the above object, the present invention adopts following technical proposals:
A kind of cermet electric cleaner pole distribution type formula, its dust collecting pole plate and corona wire use cermet material.It can the raw flue gas environment of withstand high temperatures, corrosion, polar board surface is smooth, and there is good rigidity and mechanical strength, the performance requirement meet hanging in electric cleaner, running, there is the conduction spy similar to metal material simultaneously under working condition raw.
A kind of cermet electric precipitator electrode pattern, cermet dust collector pole and corona discharge electrode has and is evenly distributed with micropore that is ventilative, permeable but resistance dirt, meet the needs of electrode deashing.
A kind of cermet electric cleaner pole distribution type formula, dust collector pole and corona discharge electrode are hollow structure.
A kind of cermet electric cleaner purge mode, corona discharge electrode passes through strength blowing device by hollow tube along the reverse jetting deashing of micropore; Dust collector pole adopts the winding-up of dry type strength and wet type micropore to seep water two kinds of purge modes by hollow part through micropore.
Described dust collector pole and corona discharge electrode are provided with strength back-blowing device, can carry out reverse strength jetting deashing, avoid electrode microcellular structure to be blocked by dust simultaneously by service requirement to electrode.
Described dust collector pole is provided with deashing water even distribution device, by hollow part through micropore to polar board surface water distribution uniformity.
Described dust collector pole is provided with deashing Water Sproading treating apparatus, can recycle by deashing water.
The invention has the beneficial effects as follows:
(1) adopt dust collecting pole plate of the present invention, utilize the microcellular structure being uniformly distributed in polar board surface, effectively can solve the equally distributed problem of wet electrical dust precipitator polar board surface ash removing water film.
(2) adopt deduster corona wire structure of the present invention, can ensure that the dust of corona wire adsorption is removed in time, avoid the impact of dust on dust collection electric field of corona wire surface deposition.
(3) high temperature resistant, the resistant to elevated temperatures feature that the dust collecting pole plate of cermet material and corona wire have, can be used for the dedusting of high-temperature flue gas.
(4) corrosion-resistant, the corrosion resistant feature that the dust collecting pole plate of cermet material and corona wire have, the especially sour corrosion that produces of coal-fired flue-gas.
(5) using water wisely, adopts the dust collecting pole plate of this deduster to have facilitation to the uniform of ash removing water film, obviously can reduce water consumption relative to traditional metal dust collecting pole plate when reaching the uniform effect of identical moisture film.
Accompanying drawing explanation
Fig. 1 is cermet electric cleaner internal structure schematic diagram;
Fig. 2 is cermet dust collecting pole plate schematic diagram;
Fig. 3 is cermet corona discharge electrode schematic diagram;
Fig. 4 is cermet electric precipitator corona pole cross sectional representation.
Wherein: 1 is cermet electric cleaner shell; 2 is cermet dust collecting pole plate; 3 is smoke inlet; 4 is exhanst gas outlet; 5 is ash bucket; 6 is deashing Water Sproading treating apparatus; 7 is cermet corona discharge electrode; 8 is deashing water even distribution device; 9 is strength blowing device; 10 is cermet dust collecting pole plate micropore; 11 is cermet corona discharge electrode electric discharge prickle; 12 is cermet corona discharge electrode micropore.
Detailed description of the invention
Embodiment: as shown in Figure 1, mainly contains: 1 cermet electric cleaner shell; 2 cermet dust collecting pole plates; 3 smoke inlets; 4 exhanst gas outlets; 5 ash buckets; 6 deashing Water Sproading treating apparatus; 7 cermet corona discharge electrodes; 8 deashing water even distribution devices; 9 strength blowing devices.Cermet dust collecting pole plate 2 is connected with cermet electric cleaner shell 1, and seals intact.Cermet corona discharge electrode 7 is placed in cermet electric cleaner shell 1 center of top.Deashing water even distribution device 8 is arranged in cermet dust collecting pole plate 2 top, and to its supply deashing water.Strength injection system 9 is connected with cermet dust collecting pole plate 2 and cermet corona discharge electrode 9 interior hollow section.Deashing water treatment facilities 6 is connected with ash bucket 5.As shown in Figure 2, cermet dust collecting pole plate 2 surface has cermet dust collecting pole plate micropore 10.As shown in Figure 3, cermet corona discharge electrode 7 surface is provided with cermet corona discharge electrode micropore 12 and cermet corona discharge electrode electric discharge prickle 11.As shown in Figure 4, cermet corona discharge electrode 7 inside is hollow structure.
In running, dusty gas enters deduster inside, and charged.Under the driving of electric field force, charged movement of dust particle, to cermet dust collecting pole plate 2, is trapped by the ash removing water film on its surface, and is collected into deashing Water Sproading treating apparatus 6 through ash bucket 5.Deashing water treatment facilities 6 utilizes or discharge after processing collected deashing water again.Deduster deashing water used is supplied to cermet dust collecting pole plate 2 by deashing water even distribution device 8.Deashing water forms uniform ash removing water film by the cermet dust collecting pole plate micropore 10 on cermet dust collecting pole plate 2 surface.The dust on cermet dust collecting pole plate 2 surface also can carry out dry type strength jetting deashing by hollow part through cermet dust collecting pole plate micropore 10 by strength injection system 9.Cermet corona discharge electrode 7 passes through strength injection system 9 by hollow tube along the reverse jetting deashing of cermet corona discharge electrode micropore 12.
Claims (4)
1. cermet electric cleaner pole distribution type formula and a purge mode, is characterized in that, comprising:
The dust collector pole be made up of cermet material and corona discharge electrode;
For the strength blowing device of dust collector pole and corona discharge electrode deashing;
For the water-distributing device of dust collector pole deashing.
2. cermet electric cleaner pole according to claim 1 distribution type formula, is characterized in that dust collector pole and corona discharge electrode are evenly distributed with micropore that is ventilative, permeable but resistance dirt.
3. cermet electric cleaner pole according to claim 1 distribution type formula, is characterized in that dust collector pole and corona discharge electrode are hollow structure.
4. cermet electric cleaner purge mode according to claim 1, is characterized in that, corona discharge electrode passes through strength blowing device by hollow tube along the reverse jetting deashing of micropore; Dust collector pole adopts the winding-up of dry type strength and wet type micropore to seep water two kinds of purge modes by hollow part through micropore.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410796412.0A CN104492603B (en) | 2014-12-13 | 2014-12-13 | Match somebody with somebody pattern and purge mode in a kind of cermet electric cleaner pole |
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| CN201410796412.0A CN104492603B (en) | 2014-12-13 | 2014-12-13 | Match somebody with somebody pattern and purge mode in a kind of cermet electric cleaner pole |
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| CN104492603B CN104492603B (en) | 2018-01-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105921006A (en) * | 2016-04-26 | 2016-09-07 | 华北电力大学（保定） | Flue gas multi-pollutant collaborative removing system adopting plasma catalyzing method |
| CN106179744A (en) * | 2016-08-29 | 2016-12-07 | 四川环翔科技有限责任公司 | A kind of air cleaner of high adsorption rate |
| CN106269252A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | A kind of low-temp. plasma air purifier |
| CN106269258A (en) * | 2016-08-29 | 2017-01-04 | 四川环翔科技有限责任公司 | A kind of air purification method based on electro static filtering |
| CN106311477A (en) * | 2016-08-29 | 2017-01-11 | 四川环翔科技有限责任公司 | Plasma purifier with high dust accommodation rate |
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Inventor after: Cui Shaoping Inventor after: Qi Liqiang Inventor after: Wang Lili Inventor after: Zeng Fang Inventor before: Qi Liqiang Inventor before: Cui Shaoping Inventor before: Wang Lili Inventor before: Zeng Fang |
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