CN86103864A - Electrostatic dust remover for boiling furnace - Google Patents
Electrostatic dust remover for boiling furnace Download PDFInfo
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- CN86103864A CN86103864A CN86103864.9A CN86103864A CN86103864A CN 86103864 A CN86103864 A CN 86103864A CN 86103864 A CN86103864 A CN 86103864A CN 86103864 A CN86103864 A CN 86103864A
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- dust
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- resistance
- flue
- little
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Abstract
The present invention is the fluidized bed furnace dedusting technology.But the fluidized bed furnace burning inferior coal, the efficiency of combustion height, economic benefit is big, but dust concentration is big, and than resistance height, environmental pollution is serious.The present invention adopts charged water smoke to change the ratio resistance of dust, and wide spacing, the accurate pulse voltage of super-pressure add dedusting technologies such as horizontal placement shutter.Can realize regulating the apparent effect than resistance of dust with low amounts of water, flue-gas temperature descends little, does not need the after-treatment of sewage, and dew-point temperature is low.Can reduce deduster outward appearance volume, increase specific collection area, handle the flue dust of big wind speed, air loss is little, and is simple to operate, not limited by temperature.Can normally move at extremely frigid zones.
Description
The invention belongs to the coal fired boiler dedusting technology
But the fluidized bed furnace burning inferior coal, the efficiency of combustion height has very big economic benefit.But because dust concentration is big, than resistance height, environmental pollution is serious, does not still have good way at present and solves.Just bigger for extremely frigid zones and existing boiling furnace improvement difficulty.Have at present and adopt various way to solve dust removal problem.(hillside plot is great, the dust arrester Progress in technique, and chemical workshop, Vol.26, No.11, P32-37(1982)).The scrubber water consumption is big, and needs the after-treatment of sewage, and flue-gas temperature descends and causes the flue gas diffusion, and floor space is big.Bag hose is applicable to handles medium and a small amount of flue dust, exists filter cloth heatproof problem, and the pressure loss is big, condensation trouble can occur at extremely frigid zones.People are just attempting to improve the duty of bag hose, and it is exactly an example that static adds cloth bag.Though static electric cleaner one-time investment height safeguards that easily air loss is little, operating cost is low, can capture fine dust efficiently.But adopt electric cleaner to collect high resistivity dust and have anti-corona problem.At present a lot of people are devoted to study this problem.As regulating the apparent resistance that compares of dust with chemical way.But there is the secondary pollution problem in complex operation; Utilize the charged Pulse Electric deduster of pulse, the pulse power is manufactured difficulty, and cost height, crest voltage only are 50-70KV.Therefore it is little to be badly in need of the research volume, and the efficiency of dust collection height is not deposited the secondary pollution problem and is applicable to the deduster that captures high concentration, high resistivity dust, and Here it is should invention technical problem to be solved.
It is apparent than resistance that this invention adopts charged water smoke to regulate pre-charged dust, can realize regulating the apparent effect than resistance of dust with low amounts of water, and flue-gas temperature descends little, does not need the after-treatment of sewage, and floor space is little, and dew-point temperature is low.
Wide spacing is adopted in this invention, super-pressure, and accurate pulse adds horizontal placement anode type electrostatic precipitation.It has the advantage of Pulse Electric dedusting and static bag hose, but accurate pulse voltage is than general pulse voltage height (being 180KV).Cost is low, manufactures easily.Be added with horizontal placement anode and can reduce deduster outward appearance volume.Increase the deduster specific collection area.Handle the flue dust of big wind speed, air loss is little, not limited by temperature, and deashing is convenient, and is simple to operate, can normally move at extremely frigid zones.
This invention solves and captures the high concentration high resistivity dust, reduces deduster outward appearance volume.At first make dust pass through pre-charging area (1), make dust have negative electrical charge.(2) be water mist charging nozzle, this shower nozzle adopts the electrostatic induction principle, adds the 2KV negative high voltage at high-field electrode (3), there is equal flow table (4) in the high-pressure blast exit, is with several even distribution holes on the dish, and high-pressure blast is evenly distributed around water column, thereby avoid water column deflection, increase carrying capacity.The positively charged water smoke of this shower nozzle ejection.Under the effect of Coulomb force, charged water smoke and charged dust are efficiently collided in zone (5), use a spot of water, reduce dust specific resistance, and the dust after modified enters wide spacing, super-pressure, accurate pulse static louvre type dedusting area.(6) (7) (8) have the feature of Pulse Electric dedusting and the wide spacing electric precipitation of super-pressure simultaneously, but crest voltage is 160KV than general pulse voltage 50-70KV height.Waveform is the alternating voltage that superposes on the DC voltage, be called the outward appearance volume that accurate pulse adds horizontal placement in electric dust collector anode (9) (10) (11) (12) can reduce deduster, increase handled field gas velocity, the dust arrester volume can reduce 1/2nd, and energy consumption reduces 60%.Laterally place blind window accurate Pulse Electric dedusting area is divided into three zonules, in zone (6), be placed with the flat board (14) of the band spike that supports with insulation (13), as negative corona discharge electrode, and the effect of collecting belt positive charge dust is arranged, adopt this kind electrode can alleviate the influence of dust concentration to corona discharge.In (7) (8), zone, be placed with the star corona discharge electrode (16) that supports with insulant (5), on corona electrode (14) and (16), be added with-the accurate pulse voltage of 160KV, constitute accurate pulse super-pressure and add horizontal louvre type dust arrester.
Fig. 1 is the accurate pulse static lourver separator of a fluidized bed furnace structural representation.
Fig. 2 is the water mist charging nozzle schematic diagram.
Claims (5)
1, a kind of electrostatic precipitator is characterized in that: adopt the accurate Mai of super-pressure to be added with horizontal anode towards Dian Ya And.
2, by the described device of claim 1, it is characterized in that: have water mist charging nozzle.
3, by the described device of claim 2, it is characterized in that: described nozzle high-voltage air outlet place is added with on equal flow table, the dish and is evenly distributed with several holes.
4, by claim 1,2,3 described devices, it is characterized in that: the flat board that the band spike is housed is as corona discharge electrode.
5, a kind of electrostatic precipitator technology is characterized in that: change the apparent resistance that compares of dust with charged water smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103864 CN1010835B (en) | 1986-05-29 | 1986-05-29 | The electrostatic precipitator that is used for fluidized bed furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86103864 CN1010835B (en) | 1986-05-29 | 1986-05-29 | The electrostatic precipitator that is used for fluidized bed furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86103864A true CN86103864A (en) | 1987-12-09 |
| CN1010835B CN1010835B (en) | 1990-12-19 |
Family
ID=4802219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86103864 Expired CN1010835B (en) | 1986-05-29 | 1986-05-29 | The electrostatic precipitator that is used for fluidized bed furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1010835B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752410A (en) * | 2013-12-27 | 2014-04-30 | 浙江大学 | Particulate matter electricity carrying capacity measurement device and method |
| CN104888963A (en) * | 2015-05-27 | 2015-09-09 | 李文 | Fog condensing and membrane forming liquid membrane electric precipitator |
| WO2016000284A1 (en) * | 2014-06-30 | 2016-01-07 | 山东大学 | Surface condensation process and device for efficiently removing coal combustion fly ash microspheres |
| CN105536403A (en) * | 2015-12-25 | 2016-05-04 | 合肥工业大学 | Raise dust treatment system for truck construction site |
| CN110935276A (en) * | 2019-12-17 | 2020-03-31 | 浙江金龙纸业有限公司 | Papermaking drying tail gas cyclic utilization device |
-
1986
- 1986-05-29 CN CN 86103864 patent/CN1010835B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752410A (en) * | 2013-12-27 | 2014-04-30 | 浙江大学 | Particulate matter electricity carrying capacity measurement device and method |
| CN103752410B (en) * | 2013-12-27 | 2017-02-15 | 浙江大学 | Particulate matter electricity carrying capacity measurement device and method |
| WO2016000284A1 (en) * | 2014-06-30 | 2016-01-07 | 山东大学 | Surface condensation process and device for efficiently removing coal combustion fly ash microspheres |
| CN104888963A (en) * | 2015-05-27 | 2015-09-09 | 李文 | Fog condensing and membrane forming liquid membrane electric precipitator |
| CN105536403A (en) * | 2015-12-25 | 2016-05-04 | 合肥工业大学 | Raise dust treatment system for truck construction site |
| CN105536403B (en) * | 2015-12-25 | 2017-05-17 | 合肥工业大学 | Raise dust treatment system for truck construction site |
| CN110935276A (en) * | 2019-12-17 | 2020-03-31 | 浙江金龙纸业有限公司 | Papermaking drying tail gas cyclic utilization device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1010835B (en) | 1990-12-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |