CN103961961A - PM (particulate matters) 2.5-dust-free emission system of coal fired boiler - Google Patents
PM (particulate matters) 2.5-dust-free emission system of coal fired boiler Download PDFInfo
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- CN103961961A CN103961961A CN201410109610.5A CN201410109610A CN103961961A CN 103961961 A CN103961961 A CN 103961961A CN 201410109610 A CN201410109610 A CN 201410109610A CN 103961961 A CN103961961 A CN 103961961A
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- dust
- ash
- emission system
- coal
- electric precipitator
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Abstract
A PM (particulate matters) 2.5-dust-free emission system of a coal fired boiler. The system is mainly technically characterized in that a coulomb electric precipitator with high dust removal efficiency is used for collecting the vast majority of dry ash, the dry ash is collected into an ash storage hopper of a dry ash dust remover after the mass flow rate of powder is monitored by an accurate powder detection device, then the dry ash is sent to an ash tank car and transported to a comprehensive utilization place, other flue gas re-enters an ash wet discharge coulomb electric precipitator, other small amount of dust is collected and subjected to wet discharge into a sedimentation tank under water flush, dust-free exhaust is discharged to a chimney under attraction of a draught fan, and PM 2.5 dust emission is avoided for the coal fired boiler.
Description
Technical field
The present invention relates to a kind of coal-burning boiler without pm2.5 dust emission system.
Background technology
The dust emission of coal-burning power plant is the main cause of pollutant atmosphere, does not also apply so far Coulomb electric precipitator, and making pm2.5 dust emission concentration is zero technology.Coal-burning boiler can be realized the most dry dirt of collection without dust emission system and fully utilize, and the pm2.5 dust of remaining minute quantity wets and drains into sedimentation basin, avoids entering atmosphere, and making airborne release concentration is zero.
The object of invention
The object of the invention is to improve existing dedusting technology, can not only make pm2.5 dust emission concentration is zero, and the dry ash under collecting can be fully utilized, and the real-time concentration of energy on-line continuous supervision dust emission.
Summary of the invention
The coal-fired flue gas producing after boiler combustion, first passes through whirlwind separator (1) and gathers dust; Through having the Coulomb electric precipitator (2) of high-effective dust-removing efficiency, dust-collecting efficiency has 99.99% again; Dust Capacity under being collected is monitored the dry ash of the mass flow of its powder through accurate measurement device of powder (3); The overwhelming majority enters dry storage ash bucket (4) and is stored; By grey tank car (5), pull away comprehensive utilization; All the other ash-laden gas enter the Coulomb electric precipitator (6) of the wet ash discharge dedusting of water film type again; A small amount of ash is collected, with moisture film, rinse and remove, enter sedimentation basin (7); Non-dusting weary gas enters chimney (9) through air-introduced machine (8), reaches and in exhaust, there is no pm2.5 dust pollution.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, coal-burning boiler is described further without pm2.5 dust emission system.
Accompanying drawing is coal-burning boiler without the schematic diagram of pm2.5 dust emission system:
Coal-burning boiler is without pm2.5 dust emission system, by wet ash discharge Coulomb electric precipitator 7. sedimentation basin 8. air-introduced machine 9. chimneys of the grey tank car 6. water film type dedustings of the 1. cyclone type dust-precipitator 2. dry storage ash bucket 5. of dry ash discharge Coulomb electric precipitator 3. accurate measurement device of powder 4.
The specific embodiment
The dust pelletizing system that the single-machine capacity of take is 600MW coal-burning power plant is example, coal-burning boiler is measured after mass flow through dry ash discharge Coulomb electric precipitator and accurate measurement device of powder, pack dry ash into grey tank car and send comprehensive utilization, the weary pneumatic transmission ash discharge Coulomb electric precipitator that enters to wet, its positive plate gets off contained a small amount of dust collection in weary gas, water rinses dust is all rinsed to the wet sedimentation basin that is discharged to, and under not attracted by air-introduced machine containing the weary gas of cleaning of dust, is not discharged to chimney, makes fire coal pot without pm2.5 dust emission.
Claims (3)
1. coal-burning boiler, without a pm2.5 dust emission system, is characterized in that: wet ash discharge Coulomb electric precipitator 7 sedimentation basin 8.. air-introduced machine 9. chimneys of the Coulomb electric precipitator 3. accurate measurement device of powder grey tank car 6. of 4. storage ash bucket 5. by 1. whirlwind separator 2. high-effective dust-removing efficiency form.
According to coal-burning boiler without pm2.5 dust emission system claim 1, by most dustiness in flue gas, with dry ash discharge coulomb electric precipitation, after the mass flow of monitoring continuously powder through accurate measurement device of powder, send into grey tank car to comprehensive utilization use.
According to coal-burning boiler without pm2.5 dust emission system claim 2, the flue gas that contains a small amount of dust is sent into wet ash discharge Coulomb electric precipitator, water rinses dust is entered to sedimentation basin, weary gas, under the attraction of air-introduced machine, is discharged to chimney to atmosphere without pm2.5 dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109610.5A CN103961961A (en) | 2014-03-24 | 2014-03-24 | PM (particulate matters) 2.5-dust-free emission system of coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410109610.5A CN103961961A (en) | 2014-03-24 | 2014-03-24 | PM (particulate matters) 2.5-dust-free emission system of coal fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103961961A true CN103961961A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410109610.5A Pending CN103961961A (en) | 2014-03-24 | 2014-03-24 | PM (particulate matters) 2.5-dust-free emission system of coal fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103961961A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062573A (en) * | 2015-09-21 | 2015-11-18 | 七台河宝泰隆煤化工股份有限公司 | Centralized dust removal device for cyclone dust removers and waste heat boilers |
| CN105817106A (en) * | 2016-05-12 | 2016-08-03 | 苏州荣能环保科技有限公司 | Smoke purifying device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4590868A (en) * | 1985-02-22 | 1986-05-27 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal-fired combined plant |
| CN2689072Y (en) * | 2004-04-02 | 2005-03-30 | 张太 | Dry-wet combined flue gas purification device |
| CN201764529U (en) * | 2009-11-06 | 2011-03-16 | 孙家鼎 | Online real-time powder flow monitoring system |
| CN202438233U (en) * | 2011-12-15 | 2012-09-19 | 郎溪县恒云工程机械有限公司 | Self-flow type unloading device of dust removal and powder feed system |
| CN202666645U (en) * | 2012-07-20 | 2013-01-16 | 中电投远达环保工程有限公司 | Saving-type high-efficiency and energy-saving dry-wet composite dust removal and desulfurization system for flue gas |
| CN202666633U (en) * | 2012-06-12 | 2013-01-16 | 清华大学 | System for simultaneously removing heavy metal and fine particulate matters in flue gas |
-
2014
- 2014-03-24 CN CN201410109610.5A patent/CN103961961A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4590868A (en) * | 1985-02-22 | 1986-05-27 | Mitsubishi Jukogyo Kabushiki Kaisha | Coal-fired combined plant |
| CN2689072Y (en) * | 2004-04-02 | 2005-03-30 | 张太 | Dry-wet combined flue gas purification device |
| CN201764529U (en) * | 2009-11-06 | 2011-03-16 | 孙家鼎 | Online real-time powder flow monitoring system |
| CN202438233U (en) * | 2011-12-15 | 2012-09-19 | 郎溪县恒云工程机械有限公司 | Self-flow type unloading device of dust removal and powder feed system |
| CN202666633U (en) * | 2012-06-12 | 2013-01-16 | 清华大学 | System for simultaneously removing heavy metal and fine particulate matters in flue gas |
| CN202666645U (en) * | 2012-07-20 | 2013-01-16 | 中电投远达环保工程有限公司 | Saving-type high-efficiency and energy-saving dry-wet composite dust removal and desulfurization system for flue gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062573A (en) * | 2015-09-21 | 2015-11-18 | 七台河宝泰隆煤化工股份有限公司 | Centralized dust removal device for cyclone dust removers and waste heat boilers |
| CN105817106A (en) * | 2016-05-12 | 2016-08-03 | 苏州荣能环保科技有限公司 | Smoke purifying device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |