CN103480492A - Dust removing method of CP-type ultra-high voltage electrostatic dust remover - Google Patents
Dust removing method of CP-type ultra-high voltage electrostatic dust remover Download PDFInfo
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- CN103480492A CN103480492A CN201310458461.9A CN201310458461A CN103480492A CN 103480492 A CN103480492 A CN 103480492A CN 201310458461 A CN201310458461 A CN 201310458461A CN 103480492 A CN103480492 A CN 103480492A
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Abstract
The invention relates to a dust removing method of a CP-type ultra-high voltage electrostatic dust remover. Afterwind of coal mill cannot enter a kiln completely, and accordingly, the problem about wind discharge for dust collection inevitably exists. The coal mill dust removal problem of small and medium-sized cement plants at home is not well solved all the time; coal slurry and sewage are difficult to treat with a wet method for dust collection; the cyclone dust collecting efficiency is low, and an emission standard cannot be up to; and bag dust collection is forced to be stopped due to bag burning caused by fire and bag baking caused by dew formation in winter, so that many plants discharge coal mill smoke to air, the environment is polluted, and energy sources are waste. The method comprises the steps that the dusty smoke enters the electric dust remover from an air inlet, is uniformly distributed by a wind fin tube and a smoke uniform distribution tower, and directly enters into a precharged state; further, the dusty smoke upwards enters a dust collecting electrode frustum ring and a non-uniform electric field generated by a hexagonal spike corona electrode; most dust is negatively charged and deposited on an internal wall of the frustum ring under the action of electric field force; and only a small amount of dust is positively charged and deposited on the corona electrode. The method is used for electrostatic dust removal.
Description
technical field:
the present invention relates to a kind of dust collection method of CP type extrahigh voltage electrostatic precipitator.
background technology:
china's cement industry mainly be take raw coal as main fuel at present, and the preparation of coal dust adopts the wind of drying the grinding of holding concurrently to sweep system more.The coal mill lingering remnants of past customs can not all enter kiln, certainly exists the problem of gathering dust of leaking informaton, and coal worn dirt problem in middle-size and small-size cement plant never has fine solution at home.Adopt wet dust collector, coal slime and sewage are difficult to process; Cyclone dust collection efficiency is low, and operation does not reach discharge standard; Bag gather dust many because of catching fire, cause burning bag and winter dewfall cause and stick with paste bag and be forced to stop, therefore many factories coal grinds flue gas sky is discharged, not only contaminated environment also wastes energy.
summary of the invention:
the dust collection method that the purpose of this invention is to provide a kind of CP type extrahigh voltage electrostatic precipitator.
above-mentioned purpose realizes by following technical scheme:
a kind of dust collection method of CP type extrahigh voltage electrostatic precipitator, ash-laden gas enters electric cleaner from air inlet, directly enter pre-state-of-charge through wind finned tube and the equal wind of flue gas even distribution tower, further upwards enter in the non-uniform electric field of dust collecting electrode truncated cone circle and the generation of hexagonal barb type corona discharge electrode; Under the effect of electric field force, most of dust charge negative electrical charge is deposited on truncated cone circle inwall, only has small part dust charge positive charge to be deposited on corona discharge electrode.
the dust collection method of described CP type extrahigh voltage electrostatic precipitator, through the two poles of the earth vibration body rapping, the dust be deposited on last layer truncated cone circle inwall drops on lower one deck truncated cone ring outer wall, the rest may be inferred like this makes most of dust sink in the wind guiding tube outside from the truncated cone ring outer wall, being incorporated to flue-dust retainer discharges, the dust that only has only a few to be deposited on corona discharge electrode falls within flue-dust retainer under electric field, truncated cone encloses the dust secondary fly-up effect of avoiding like this, even there is spark discharge to produce in electric field simultaneously, because of the dust after collecting and ash-laden gas not in same passage, the dust that also can make to collect is not subject to the impact of electric field electric discharge, flue gas after purifying, by the top air outlet, discharged.
beneficial effect:
1. the present invention utilizes the shielding action of dust collecting electrode truncated cone circle, the motion in the opposite direction in passage separately of the dust after making to collect and ash-laden gas, and the dust that causes to fall and break is not subject to airflow influence, and dust lands without electric field, reduces corona wire Dust Capacity on every side; Even produce spark discharge in electric field simultaneously, because the shielding of truncated cone circle is arranged, make the dust of collecting avoid being subject to electric discharge to affect, contribute to the burning and the blast that prevent that coal dust from causing.
the electric field of deduster of the present invention is the vertical barrel structure, can form larger negative pressure.Ash-laden gas, under the inducing action of negative pressure and blower fan, must have the upwards natural tendency of operation, even there is trace amounts of CO also can discharge in time in system, the explosion-proof performance of discharge pipe in addition, so the explosion-proof performance of cartridge type electric cleaner is superior than horizontal type electric dust collector.
the present invention for preventing the coal dust accumulation, sets up dust excluding plate on the electric cleaner internals, eliminates facet.The present invention utilizes shallow bucket type rotary feeder that coal dust is discharged in time.At the ash bucket middle part, hopper wall vibrator is set, prevents that feed opening from encircleing material and causing and deposit coal.The present invention, in order to prevent between electrode producing spark discharge, configures a set of high tension silicon rectifier that critical spark is followed the tracks of control characteristic that has, and makes the operating voltage of electric field all the time lower than sparking voltage.Housing of the present invention is sandwich, passes to hot blast in circular passage, and insulation shell makes coal dust be difficult for dewfall.
the accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.In figure, 1 is air outlet, and 2 is the corona discharge electrode vibrator, 3 is insulator, and 4 is the high pressure inlet wire pipe, and 5 is corona discharge electrode, 6 is dust collecting electrode, and 7 is the dust collecting electrode rapping, and 8 is the flue gas even distribution tower, 9 is the ash-laden gas import, 10 is the preheating wind inlet, and 11 is rigid impeller feeding machine, and 12 is housing, 13 is dust excluding plate, and 14 is ash bucket.
the specific embodiment:
embodiment 1:
a kind of dust collection method of CP type extrahigh voltage electrostatic precipitator, ash-laden gas enters electric cleaner from air inlet, directly enter pre-state-of-charge through wind finned tube and the equal wind of flue gas even distribution tower, further upwards enter in the non-uniform electric field of dust collecting electrode truncated cone circle and the generation of hexagonal barb type corona discharge electrode; Under the effect of electric field force, most of dust charge negative electrical charge is deposited on truncated cone circle inwall, only has small part dust charge positive charge to be deposited on corona discharge electrode.
embodiment 2:
dust collection method according to the described CP type of embodiment 1 extrahigh voltage electrostatic precipitator, through the two poles of the earth vibration body rapping, the dust be deposited on last layer truncated cone circle inwall drops on lower one deck truncated cone ring outer wall, the rest may be inferred like this makes most of dust sink in the wind guiding tube outside from the truncated cone ring outer wall, being incorporated to flue-dust retainer discharges, the dust that only has only a few to be deposited on corona discharge electrode falls within flue-dust retainer under electric field, truncated cone encloses the dust secondary fly-up effect of avoiding like this, even there is spark discharge to produce in electric field simultaneously, because of the dust after collecting and ash-laden gas not in same passage, the dust that also can make to collect is not subject to the impact of electric field electric discharge, flue gas after purifying, by the top air outlet, discharged.
embodiment 3:
described CP type extrahigh voltage electrostatic precipitator, because electric cleaner has the characteristics such as efficiency is high, resistance is little, maintenance cost is low, maintenance workload is few.For " coal dust " this inflammable and explosive special media, through a large amount of laboratory test and shop tests, design and manufacture the CP type vertical tube protected type coal mill high-voltage electrostatic dust separator for the worn dirt of coal.
Claims (2)
1. the dust collection method of a CP type extrahigh voltage electrostatic precipitator, it is characterized in that: ash-laden gas enters electric cleaner from air inlet, directly enter pre-state-of-charge through wind finned tube and the equal wind of flue gas even distribution tower, further upwards enter in the non-uniform electric field of dust collecting electrode truncated cone circle and the generation of hexagonal barb type corona discharge electrode; Under the effect of electric field force, most of dust charge negative electrical charge is deposited on truncated cone circle inwall, only has small part dust charge positive charge to be deposited on corona discharge electrode.
2. the dust collection method of CP type extrahigh voltage electrostatic precipitator according to claim 1, it is characterized in that: through the two poles of the earth vibration body rapping, the dust be deposited on last layer truncated cone circle inwall drops on lower one deck truncated cone ring outer wall, the rest may be inferred like this makes most of dust sink in the wind guiding tube outside from the truncated cone ring outer wall, being incorporated to flue-dust retainer discharges, the dust that only has only a few to be deposited on corona discharge electrode falls within flue-dust retainer under electric field, truncated cone encloses the dust secondary fly-up effect of avoiding like this, even there is spark discharge to produce in electric field simultaneously, because of the dust after collecting and ash-laden gas not in same passage, the dust that also can make to collect is not subject to the impact of electric field electric discharge, flue gas after purifying, by the top air outlet, discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310458461.9A CN103480492A (en) | 2013-10-02 | 2013-10-02 | Dust removing method of CP-type ultra-high voltage electrostatic dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310458461.9A CN103480492A (en) | 2013-10-02 | 2013-10-02 | Dust removing method of CP-type ultra-high voltage electrostatic dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103480492A true CN103480492A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310458461.9A Withdrawn CN103480492A (en) | 2013-10-02 | 2013-10-02 | Dust removing method of CP-type ultra-high voltage electrostatic dust remover |
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| CN (1) | CN103480492A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855051A (en) * | 2016-05-30 | 2016-08-17 | 广东美的制冷设备有限公司 | Electrostatic dust-collecting device and air purifier |
| CN111437997A (en) * | 2019-06-10 | 2020-07-24 | 袁野 | Dewfall type electric dust removal dehydration tower |
-
2013
- 2013-10-02 CN CN201310458461.9A patent/CN103480492A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855051A (en) * | 2016-05-30 | 2016-08-17 | 广东美的制冷设备有限公司 | Electrostatic dust-collecting device and air purifier |
| CN105855051B (en) * | 2016-05-30 | 2017-07-07 | 广东美的制冷设备有限公司 | Electrostatic dust-collecting device and air purifier |
| CN111437997A (en) * | 2019-06-10 | 2020-07-24 | 袁野 | Dewfall type electric dust removal dehydration tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140101 |