CN103127799A - Purification method of boiler tail gas - Google Patents
Purification method of boiler tail gas Download PDFInfo
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- CN103127799A CN103127799A CN201210472221XA CN201210472221A CN103127799A CN 103127799 A CN103127799 A CN 103127799A CN 201210472221X A CN201210472221X A CN 201210472221XA CN 201210472221 A CN201210472221 A CN 201210472221A CN 103127799 A CN103127799 A CN 103127799A
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Abstract
The invention discloses a purification method of boiler tail gas, and mainly relates to a purification method of coal-fired boiler tail gas, in particular to a method of tail gas purification by using activated carbon. The purification method of the boiler tail gas comprises a flue pipe (1), a heat exchanger (2), a fan (3) and a charcoal filtering groove (4), wherein the heat exchanger (2), the fan (3) and the charcoal filtering groove (4) are installed on the flue pipe (1) in sequence, and a steam pipe (5) is arranged on the flue pipe (1) between the fan (3) and the charcoal filtering groove (4) in a connection mode. The quantity of seam in volume entering into the flue pipe (1) from the steam pipe (5) in unit time is 10%-15% of the volume of flue gas in the flue pipe (1) at normal pressure, and the steam temperature of the steam pipe (5) is 150DEG C-200DEG C. According to the structure and the purification method of the boiler tail gas, physical and chemical reactions are carried out on dust and harmful gas in steam and coal smoke, a part of pollutants is eliminated, and meanwhile desorption processing can be carried out on activated carbon by using the temperature of the steam, activity of the activated carbon is improved, service life of the activated carbon is prolonged, and purification cost is reduced.
Description
Technical field
The purification method of the main coal-fired boiler tail gas of purification method of boiler exhaust gas of the present invention especially utilizes active carbon to carry out the method for tail gas clean-up.
Background technology
In the city, coal-fired stove is used in the unit dining rooms such as various restaurant, enterprise, school, office mostly at present, the soot emissions of these cooking stoves is straight-line chimney or the flue that uses basically, flue dust is not done any processing and directly is discharged in atmosphere, contaminated environment not only, and discharge sometimes the flue dust that is burning, and form potential safety hazard.For above-mentioned hidden danger, people have designed multiple smoke abatement device and device, and utilizing carbon monoxide in the charcoal absorption flue gas, sulfur dioxide, oxynitrides etc. is a kind of method that people adopt.This method needs often to change active carbon to keep the adsorption capacity of active carbon, otherwise used the activity decreased of active carbon of a specified duration, the adsorption effect variation, the clean-up effect of tail gas is just poor, just pollute the environment, and frequent its purification cost of changing will rise, and the replacing of active carbon simultaneously also can strengthen workman's labour intensity.
Summary of the invention
The purpose of this invention is to provide a kind of purification method of novel boiler exhaust gas, it can improve the tail gas clean-up effect effectively, carries out desorption process in charcoal adsorption process, greatly extends the service life of active carbon purifying agent, has reduced the purification cost.
The purification method of boiler exhaust gas of the present invention comprises flue tube 1 and is arranged on successively heat exchanger 2, blower fan 3, charcoal filtering groove 4 on flue tube 1, is being connected to steam pipe 5 on flue tube 1 before described blower fan 3 and described charcoal filtering groove 4; The quantity of steam that it is characterized in that in the lower unit interval of normal pressure entering into the stereometer in described flue tube 1 in described steam pipe 5 is the 10%-15% of flue tube 1 inner flue gas volume, and the vapor (steam) temperatures in steam pipe 5 are 150 ℃-200 ℃.
The purification method of above-mentioned boiler exhaust gas, the quantity of steam that enters into the stereometer in described flue tube 1 in the described lower unit interval of normal pressure in the described steam pipe 5 is 10% of flue tube 1 inner flue gas volume, the vapor (steam) temperatures in steam pipe 5 are 150 ℃.
The purification method of above-mentioned boiler exhaust gas, the quantity of steam that enters into the stereometer in described flue tube 1 in the described lower unit interval of normal pressure in the described steam pipe 5 is 12% of flue tube 1 inner flue gas volume, the vapor (steam) temperatures in steam pipe 5 are 180 ℃.
Adopt above-mentioned structure and method, dust in steam and coal smoke and pernicious gas carry out physical and chemical reaction, eliminated the part pollutant, utilize simultaneously the temperature of steam to carry out the desorption processing to active carbon, improved the activity of active carbon, extend the life-span of active carbon, reduced the purification cost.
Description of drawings
Accompanying drawing 1 is the purification method embodiment schematic diagram of boiler exhaust gas of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, invention is described in further detail:
The purification method of boiler exhaust gas of the present invention, comprise flue tube 1 and be arranged on successively heat exchanger 2 on flue tube 1, this heat exchanger 2 has water inlet pipe 21 and outlet pipe 22, the heat that can take full advantage of in flue tube 1 obtains hot water, one has utilized waste heat, saved the energy, its two temperature that can reduce tail gas is beneficial to the purification of follow-up active carbon; Blower fan 3, charcoal filtering groove 4 also are installed on described flue tube 1, be connected to steam pipe 5 on flue tube 1 before described blower fan 3 and described charcoal filtering groove 4, described blower fan 3 is used for the forced conveyance of tail gas, in described charcoal filtering groove 4, active carbon is housed, having steam to carry in flue tube 1 with tail gas in flue tube 1 in described steam pipe 5 mixes, then entering charcoal filtering groove 4 filters, flue gas after filtration discharges by chimney 42, and the interior formation condensed water of charcoal filtering groove 4 is by blow-off pipe 41 dischargings.So, the dust in steam and coal smoke and pernicious gas carry out physical and chemical reaction, have eliminated the part pollutant, utilize simultaneously the temperature of steam to carry out the desorption processing to active carbon, improve the activity of active carbon, extended the life-span of active carbon, reduced the purification cost.
Experiment one: the quantity of steam that enters into the stereometer in described flue tube 1 in the lower unit interval of normal pressure in the described steam pipe 5 is 10% of flue tube 1 inner flue gas volume, and the vapor (steam) temperatures in steam pipe 5 are 150 ℃.The clean-up effect ratio that under this kind state, we record tail gas does not have the water flowing steam to have largelyr to improve, and also extended to 20 days by 10 days the service life of active carbon.
Experiment two: the quantity of steam that enters into the stereometer in described flue tube 1 in the lower unit interval of normal pressure in the described steam pipe 5 is 12% of flue tube 1 inner flue gas volume, and the vapor (steam) temperatures in steam pipe 5 are 180 ℃.The clean-up effect ratio that under this kind state, we record tail gas does not have the water flowing steam to have largelyr to improve, and also extended to 25 days by 10 days the service life of active carbon.
Experiment three: the quantity of steam that enters into the stereometer in described flue tube 1 in the lower unit interval of normal pressure in the described steam pipe 5 is 15% of flue tube 1 inner flue gas volume, and the vapor (steam) temperatures in steam pipe 5 are 200 ℃.The clean-up effect ratio that under this kind state, we record tail gas does not have the water flowing steam to have largelyr to improve, and also extended to 25 days by 10 days the service life of active carbon.
Claims (3)
1. the purification method of boiler exhaust gas, comprise flue tube (1) and be arranged on successively heat exchanger (2), blower fan (3), charcoal filtering groove (4) on flue tube (1), be connected to steam pipe (5) on flue tube (1) before at described blower fan (3) and described charcoal filtering groove (4); The quantity of steam that it is characterized in that in the lower unit interval of normal pressure entering into the stereometer in described flue tube (1) in described steam pipe (5) is the 10%-15% of flue tube (1) inner flue gas volume, and the vapor (steam) temperature in steam pipe (5) is 150 ℃-200 ℃.
2. the purification method of boiler exhaust gas according to claim 1, the quantity of steam that it is characterized in that in the described lower unit interval of normal pressure entering into the stereometer in described flue tube (1) in described steam pipe (5) is 10% of flue tube (1) inner flue gas volume, and the vapor (steam) temperature in steam pipe (5) is 150 ℃.
3. the purification method of boiler exhaust gas according to claim 1, the quantity of steam that it is characterized in that in the lower unit interval of normal pressure entering into the stereometer in described flue tube (1) in described steam pipe (5) is 12% of flue tube (1) inner flue gas volume, and the vapor (steam) temperature in steam pipe (5) is 180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472221XA CN103127799A (en) | 2012-11-20 | 2012-11-20 | Purification method of boiler tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472221XA CN103127799A (en) | 2012-11-20 | 2012-11-20 | Purification method of boiler tail gas |
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| CN103127799A true CN103127799A (en) | 2013-06-05 |
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| CN201210472221XA Pending CN103127799A (en) | 2012-11-20 | 2012-11-20 | Purification method of boiler tail gas |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004080574A1 (en) * | 2003-03-12 | 2004-09-23 | F.L. Smidth Airtech A/S | Mercury and process for removing mercury from gases |
| CN201973730U (en) * | 2010-11-29 | 2011-09-14 | 洪培琪 | Energy-saving, smoke-eliminating and environmental-friendly flue |
| CN102580461A (en) * | 2012-02-21 | 2012-07-18 | 山东科技大学 | Activated carbon continuous sorption-desorption device for movable bed |
| CN202376888U (en) * | 2011-12-22 | 2012-08-15 | 云南玉溪水松纸厂 | Horizontal device for adsorbing active carbon granules |
-
2012
- 2012-11-20 CN CN201210472221XA patent/CN103127799A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004080574A1 (en) * | 2003-03-12 | 2004-09-23 | F.L. Smidth Airtech A/S | Mercury and process for removing mercury from gases |
| CN201973730U (en) * | 2010-11-29 | 2011-09-14 | 洪培琪 | Energy-saving, smoke-eliminating and environmental-friendly flue |
| CN202376888U (en) * | 2011-12-22 | 2012-08-15 | 云南玉溪水松纸厂 | Horizontal device for adsorbing active carbon granules |
| CN102580461A (en) * | 2012-02-21 | 2012-07-18 | 山东科技大学 | Activated carbon continuous sorption-desorption device for movable bed |
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Owner name: DONGGUAN GOLDEN ENERGY ENVIRONMENTAL PROTECTION TE Free format text: FORMER OWNER: GOLDEN STAR ENVIRONMENTAL PROTECTION TECHNOLOGY (HONGKONG) CO., LTD. Effective date: 20140924 |
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Free format text: CORRECT: ADDRESS; FROM: HONG KONG, CHINA TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
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Effective date of registration: 20140924 Address after: Industrial Road, Songshan Lake high tech Industrial Development Zone 523000 Guangdong city of Dongguan province No. 6 Songhu Branch Industrial Park 2 Building No. 413 Applicant after: DONGGUAN GOLDEN ENERGY ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. Address before: Hongkong Kowloon China Kwun Tong Rongye Street No. 6 Haibin Arts crafts emporium C1 11/F Applicant before: Jinxing environmental protection science and Technology (Hongkong) Co. |
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Application publication date: 20130605 |