CN101274205A - Technology of sulfur removal - Google Patents
Technology of sulfur removal Download PDFInfo
- Publication number
- CN101274205A CN101274205A CNA2007101923269A CN200710192326A CN101274205A CN 101274205 A CN101274205 A CN 101274205A CN A2007101923269 A CNA2007101923269 A CN A2007101923269A CN 200710192326 A CN200710192326 A CN 200710192326A CN 101274205 A CN101274205 A CN 101274205A
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- Prior art keywords
- gas
- boiler
- chimney
- reduced
- processing method
- Prior art date
- 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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Abstract
The invention provides a disposal method of boiler flue gas, comprising a boiler and a chimney; the boiler flue gas is guided into a dedusting tower; the temperature of the gas is reduced to below -15 DEG C in a multistep air heat exchanger, or is reduced to 15 DEG C under 8 standard pressure; the gas is then cleaned in a filter pool containing CaCO3 powder and exhausted by the chimney; after dedusting, the gas in the chimney comprises SO2 and SO3 which can be liquefied under low temperature or high pressure; gaseous CO2 can be directly exhausted, thus greatly desulphurizing with the desulphurization efficiency of 95 percent; the sulphur exhaust can be controlled within 0.2 percent by combining with a method of spraying limewater in a hearth.
Description
Technical field
The present invention relates to a kind of processing method of flue gas, especially a kind of processing method of boiler flue gas desulfurization.
Background technology
In the primary energy consumption structure of China, fire coal accounts for more than 70% of total energy consumption, and the SO2 that is produced by fire coal accounts for 90% of national SO2 total release, therefore, the discharging of fire coal boiler fume being carried out desulfurization, control SO2 is an urgent demand of China's economy and social development, and boiler is in desulfurization and dedusting, for those fine grits in the flue gas, after by the one-level column plate, can not all be captured, also have the grit of some to overflow.
Summary of the invention
The present invention is directed to the defective of prior art, a kind of processing method of boiler smoke is provided.
To achieve these goals, the present invention takes following measure to realize:
A kind of processing method of boiler smoke, comprise boiler, chimney, it is characterized in that boiler smoke is introduced in the gas wash tower, then with gas by in the multi-staged air heat exchanger gas temperature being reduced to below-15 ℃, perhaps under the situation of 8 standard pressures, gas is reduced to 15 ℃,, carries out smoke stack emission more then by cleaning in the filter tank that calcium carbonate powder is arranged.
The present invention has following effect with respect to prior art: the gas that comprises in the dedusting after funnel includes sulfur dioxide and sulfur trioxide, can liquefy under low temperature or high pressure, and the carbon dioxide of gaseous state can directly discharge, so just desulfurization significantly.
The specific embodiment
During concrete enforcement, the low temperature processing method can adopt the heat-pump-type method, with heat exchanger gas is lowered the temperature, and the heat that pumps can also heat water at low temperature.
The boosting type processing method can also utilize overbottom pressure to promote the heat pump of heat exchanger.
Adopt the heat power station of present technique, desulfuration efficiency is 95%, and the method in conjunction with spraying limewash in the burner hearth can be controlled at sulphur emissions in 0.2%.
Claims (3)
1, a kind of processing method of boiler smoke, comprise boiler, chimney, it is characterized in that boiler smoke is introduced in the gas wash tower, then with gas by in the multi-staged air heat exchanger gas temperature being reduced to below-15 ℃, perhaps under the situation of 8 standard pressures, gas is reduced to 15 ℃,, carries out smoke stack emission more then by cleaning in the filter tank that calcium carbonate powder is arranged.
2, according to claim 1, it is characterized in that the low temperature processing method adopts the heat-pump-type method.
3, according to claim 1, it is characterized in that the boosting type processing method utilizes overbottom pressure to promote the heat pump of heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101923269A CN101274205A (en) | 2007-12-24 | 2007-12-24 | Technology of sulfur removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101923269A CN101274205A (en) | 2007-12-24 | 2007-12-24 | Technology of sulfur removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101274205A true CN101274205A (en) | 2008-10-01 |
Family
ID=39994323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101923269A Pending CN101274205A (en) | 2007-12-24 | 2007-12-24 | Technology of sulfur removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101274205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734823A (en) * | 2011-04-16 | 2012-10-17 | 赵文志 | Novel power generation system |
| WO2013143347A2 (en) * | 2012-03-31 | 2013-10-03 | Zhao Wenzhi | New power generation system |
-
2007
- 2007-12-24 CN CNA2007101923269A patent/CN101274205A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734823A (en) * | 2011-04-16 | 2012-10-17 | 赵文志 | Novel power generation system |
| WO2013143347A2 (en) * | 2012-03-31 | 2013-10-03 | Zhao Wenzhi | New power generation system |
| WO2013143347A3 (en) * | 2012-03-31 | 2013-11-21 | Zhao Wenzhi | Power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081001 |