CN107008571A - A kind of electric cleaner - Google Patents
A kind of electric cleaner Download PDFInfo
- Publication number
- CN107008571A CN107008571A CN201710255050.8A CN201710255050A CN107008571A CN 107008571 A CN107008571 A CN 107008571A CN 201710255050 A CN201710255050 A CN 201710255050A CN 107008571 A CN107008571 A CN 107008571A
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- CN
- China
- Prior art keywords
- electric field
- electric
- housing
- low pressure
- voltage power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/025—Combinations of electrostatic separators, e.g. in parallel or in series, stacked separators, dry-wet separator combinations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The present invention relates to the removing equipment of Pollutant in Coal Burning Boiler, specially a kind of electric cleaner.A kind of electric cleaner, including housing, housing is provided with electric precipitation entrance flue and electric precipitation outlet loudspeaker flue, some electric field high-low pressure electrodes are disposed with housing, negative polarity high voltage power supply is provided with preceding electric field, it is additionally provided with housing at the ash bucket supporting with electric field high-low pressure electrode, rear electric field and is provided with positive polarity high voltage power supply.Preceding electric field and rear electric field, which refer to, is divided electric field high-low pressure electrode by airflow direction, and the quantity of preceding electric field and rear electric field can be divided arbitrarily.The electrion in electric field was changed to the streamer-discahrge of positive polarity by former negative polarity corona discharge afterwards, substantially increased the oxidisability of electric precipitation.
Description
Technical field
The present invention relates to the removing equipment of Pollutant in Coal Burning Boiler, specially a kind of electric cleaner.
Background technology
The removing of the big pollutant of coal-burning boiler three, which is mainly, uses electric precipitation（Electrostatic Precipitator,
ESP）Flue dust is collected, using SCR and SNCR denitration, SCR
(Selective Catalytic Reduction, SCR) is under catalyst action, to utilize NH3, the reducing agent such as urea is by NOx
It is selectively generating N2And H2O technology；Non-selective catalytic reduction (Selective Non-catalytic Reduction,
SNCR it is) by NH3NOx is reduced to N at high temperature Deng reducing agent2Technology.Wet desulphurization has limestone-gypsum method and ammonia process
(Flue Gas Desulfurization, FGD) etc., the first SCR denitration at high temperature of coal-fired flue-gas, then ESP dedustings and FGD are de-
Sulphur.
Either there is the escaping of ammonia in SCR or SNCR at present, in order to improve denitration in the case where not increasing SCR catalyst
Efficiency and collaboration ESP and FGD realize coal-burning boiler minimum discharge, realize that high-effective dust-removing and flue gas gaseous state are dirty to the transformation of former electric precipitation
Thing oxidation is contaminated, unreacted NH can be not only avoided3Escape, SO2Catalysis oxidation caused by equipment block and secondary pollution, and
And denitration efficiency can be improved, improve FGD oxidations, improve efficiency of dust collection and realize combined pollution Collaborative Control.
In summary, the function of current electric precipitation is dedusting, and denitration has the escaping of ammonia and SO2The secondary pollution of oxidation is asked
Topic.It can take and high voltage power supply and electrode transformation are carried out to the rear electric field of former electric precipitation, realize that dedusting is oxidation integrated, after oxidation
Gaseous contaminant can be absorbed in FGD, so as to be controlled while reaching combined pollution.
The content of the invention
The invention provides a kind of electric cleaner, the dedusting for realizing electric cleaner is oxidation integrated.
The present invention adopts the following technical scheme that realization：A kind of electric cleaner, including housing, housing are removed provided with electricity
Some electric field high-low pressure electrodes, preceding electric field are disposed with dirt entrance flue and electric precipitation outlet loudspeaker flue, housing
Place, which is provided with negative polarity high voltage power supply, housing, to be additionally provided with the ash bucket supporting with electric field high-low pressure electrode, rear electric field provided with just
Polarity high voltage power supply.Preceding electric field and rear electric field, which refer to, is divided electric field high-low pressure electrode by airflow direction, preceding electric field and rear electricity
The quantity of field can be divided arbitrarily.The streamer that the electrion in electric field was changed to positive polarity by former negative polarity corona discharge afterwards is put
Electricity, substantially increases the oxidisability of electric precipitation.
The present invention principle be in streamer-discahrge, high energy electron gas molecule can be excited for height it is chemically active from
By base (OH, O, N etc.) or other active materials (O3、H2O2、H3O+Deng), the combined pollutant in flue gas is substantially carried out down
Row reaction：
（1）O + NO –> NO2；
（2）OH + NO –> HNO2；
（3）OH + NO2 –> HNO3；
（4）H + O2 –> HO2；
（5）O + SO2 –> SO3；
（6）OH + SO2 –> HSO3；
Because of reaction（1）、（2）With（3）Speed be significantly larger than reaction（5）With（6）, improved main process is reaction（1）、
（2）With（3）.The NO in follow-up FGD2、HNO2And HNO3Absorbed, realize electric precipitation transformation denitration.
Electric precipitation remodeling method provided by the present invention can produce following beneficial effect compared with conventional denitration technology：
1）To the SCR denitration of operation at a lower temperature, it is not necessary to increase ammonia spraying amount and achieve that denitration；
2）It need not regularly replace or transform as SCR catalyst；
3）The present invention realizes that dedusting and gaseous contaminant are aoxidized by electric precipitation transformation, so as to simplify wide load denitration operation bar
Part and realize low energy consumption and low cost operation.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure：1- electric precipitation entrance flues；2- the first electric field high-low pressure electrodes；3- the second electric field high-low pressure electrodes；
The electric field high-low pressure electrodes of 4- the 3rd；The electric field high-low pressure electrodes of 5- the 4th；The electric field high-low pressure electrodes of 6- the 5th；7- electric precipitations export loudspeaker
Flue；8- the first electric field ash buckets；9- the second electric field ash buckets；The electric field ash buckets of 10- the 3rd；The electric field ash buckets of 11- the 4th；12- the 5th
Electric field ash bucket；13- the first negative polarity high voltage power supplies；14- the second negative polarity high voltage power supplies；15- the first positive polarity high voltage power supplies；
16- the second positive polarity high voltage power supplies；The positive polarity high voltage power supplies of 17- the 3rd.
Embodiment
Embodiment
A kind of electric cleaner, including housing, housing are provided with electric precipitation entrance flue 1 and electric precipitation outlet loudspeaker cigarette
The first electric field high-low pressure electrode 2, the second electric field high-low pressure electrode 3, the 3rd electric field height piezoelectricity are disposed with road 7, housing
Pole 4, the 4th electric field high-low pressure electrode 5 and the 5th electric field high-low pressure electrode 6, the first electric field high-low pressure electrode 2, the second electric field height
The first negative polarity high voltage power supply 13, the second negative polarity high voltage power supply 14, the 3rd electric field high-low pressure electrode are respectively equipped with piezoelectricity pole 3
4th, it is respectively equipped with the first positive polarity high voltage power supply 15, second at the 4th electric field high-low pressure electrode 5 and the 5th electric field high-low pressure electrode 6
The ash supporting with electric field high-low pressure electrode is additionally provided with the positive polarity high voltage power supply 17 of positive polarity high voltage power supply 16 and the 3rd, housing
Bucket.Described high voltage power supply is that positive and negative pulsed high voltage generator or alternating current-direct current superposition high voltage power supply or DC stacked positive and negative pulse are high
Voltage source or DC high-voltage power supply, power supply mode can be continuous, or interval.The first and second electric fields by optimization
General efficiency of dust collection more than 99% enters the 3rd electric field flue dust less than 120mg/m3, then pass through the three, the 4th and the 5th electric field
Dedusting, flue dust is typically in 15mg/m3Hereinafter, corresponding corona plasma power density is general in 0.1-6Wh/ in addition
Between m3, run according to the requirement Automatic Optimal of denitration and other pollutant emissions.
Claims (1)
1. a kind of electric cleaner, including housing, housing are provided with electric precipitation entrance flue（1）With electric precipitation outlet loudspeaker cigarette
Road（7）, it is disposed with housing at some electric field high-low pressure electrodes, preceding electric field and is provided with negative polarity high voltage power supply, on housing also
It is provided with the ash bucket supporting with electric field high-low pressure electrode, it is characterised in that be provided with positive polarity high voltage power supply at rear electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255050.8A CN107008571A (en) | 2017-04-19 | 2017-04-19 | A kind of electric cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710255050.8A CN107008571A (en) | 2017-04-19 | 2017-04-19 | A kind of electric cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107008571A true CN107008571A (en) | 2017-08-04 |
Family
ID=59448642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710255050.8A Pending CN107008571A (en) | 2017-04-19 | 2017-04-19 | A kind of electric cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008571A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124480A (en) * | 2019-05-13 | 2019-08-16 | 山西晋浙环保科技有限公司 | A kind of streamer-discahrge plasma electric dedusting remodeling method based on coal-burning power plant |
| CN111649968A (en) * | 2020-04-30 | 2020-09-11 | 山西晋明通环保科技有限公司 | Method for performing cold state boost test on electric dust remover |
| WO2022002315A1 (en) * | 2020-07-01 | 2022-01-06 | Mikroninter-Dig Gmbh | Electrostatic dust separator for purifying air and other dielectric fluids |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101306A (en) * | 1985-04-01 | 1987-01-10 | 三菱重工业株式会社 | Two-stage electrostatic precipitator |
| KR20020000659A (en) * | 2000-06-27 | 2002-01-05 | 이달우 | Apparatus for purifying harmful gas in a reactor using streamer corona discharge driven by high voltage impulse power supply |
| CN101274304B (en) * | 2008-05-07 | 2010-11-03 | 浙江大学 | Composite electro-static dust-collector for cooperatively removing multipollutants in flue gas |
| CN202037072U (en) * | 2010-11-29 | 2011-11-16 | 江苏紫光吉地达环境科技股份有限公司 | Partitioned electric dust collector |
| CN102407187A (en) * | 2011-12-15 | 2012-04-11 | 山西晋浙环保科技有限公司 | Optimized power supply device for electric precipitation |
| CN203750368U (en) * | 2014-01-24 | 2014-08-06 | 浙江大学 | Multi-field collaborative efficient removing device for fine particulate matters |
| CN104043532A (en) * | 2014-06-18 | 2014-09-17 | 南京师范大学 | Dual-region tubular high-temperature electrostatic dedusting device |
| CN104815755A (en) * | 2015-03-31 | 2015-08-05 | 金华大维电子科技有限公司 | Novel electrostatic dust removing structure |
-
2017
- 2017-04-19 CN CN201710255050.8A patent/CN107008571A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101306A (en) * | 1985-04-01 | 1987-01-10 | 三菱重工业株式会社 | Two-stage electrostatic precipitator |
| KR20020000659A (en) * | 2000-06-27 | 2002-01-05 | 이달우 | Apparatus for purifying harmful gas in a reactor using streamer corona discharge driven by high voltage impulse power supply |
| CN101274304B (en) * | 2008-05-07 | 2010-11-03 | 浙江大学 | Composite electro-static dust-collector for cooperatively removing multipollutants in flue gas |
| CN202037072U (en) * | 2010-11-29 | 2011-11-16 | 江苏紫光吉地达环境科技股份有限公司 | Partitioned electric dust collector |
| CN102407187A (en) * | 2011-12-15 | 2012-04-11 | 山西晋浙环保科技有限公司 | Optimized power supply device for electric precipitation |
| CN203750368U (en) * | 2014-01-24 | 2014-08-06 | 浙江大学 | Multi-field collaborative efficient removing device for fine particulate matters |
| CN104043532A (en) * | 2014-06-18 | 2014-09-17 | 南京师范大学 | Dual-region tubular high-temperature electrostatic dedusting device |
| CN104815755A (en) * | 2015-03-31 | 2015-08-05 | 金华大维电子科技有限公司 | Novel electrostatic dust removing structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110124480A (en) * | 2019-05-13 | 2019-08-16 | 山西晋浙环保科技有限公司 | A kind of streamer-discahrge plasma electric dedusting remodeling method based on coal-burning power plant |
| CN111649968A (en) * | 2020-04-30 | 2020-09-11 | 山西晋明通环保科技有限公司 | Method for performing cold state boost test on electric dust remover |
| CN111649968B (en) * | 2020-04-30 | 2022-03-15 | 山西晋浙环保科技有限公司 | Method for performing cold state boost test on electric dust remover |
| WO2022002315A1 (en) * | 2020-07-01 | 2022-01-06 | Mikroninter-Dig Gmbh | Electrostatic dust separator for purifying air and other dielectric fluids |
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Application publication date: 20170804 |