CN101002996A - Equipment and method for comprehensive treatment of sulfur-containing flue-gas - Google Patents
Equipment and method for comprehensive treatment of sulfur-containing flue-gas Download PDFInfo
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- CN101002996A CN101002996A CN 200610017387 CN200610017387A CN101002996A CN 101002996 A CN101002996 A CN 101002996A CN 200610017387 CN200610017387 CN 200610017387 CN 200610017387 A CN200610017387 A CN 200610017387A CN 101002996 A CN101002996 A CN 101002996A
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- desulfurizing tower
- pretreater
- flue
- gas
- sulfur
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Abstract
An apparatus for treating the S-contained fume is composed of a pre-treating tower with two layers of atomizing nozzles, a horizontal flue, a desulfurizing tower, an alkali-contained black liquid pool, and the communicating water tubes. Its treating process features that the fume is desulfurized by said alkali-contained block liquid to generate the clean gas mixture to be exhausted and the sodium sulfite and sodium sulfate to be drained in liquid pool.
Description
Technical field
The present invention relates to gas purification, particularly a kind of equipment and method of utilizing cotton pulp black liquor or black liquid for the desulfurizing agent comprehensive treatment of sulfur-containing flue-gas.
Background technology
Contain certain sulfur dioxide and sulfur trioxide in the present coal-burning boiler institute discharged flue gas,, adopt high altitude discharge that environment is produced pollution again with conventional desulfurized treatment method weak effect, operating cost height.Present wet desulphurization is to carry out with a desulfurizing tower, in desulfurizing tower, establish a spraying area, the raw material of spraying area is to add certain desulfurizing agent in clear water, its sulfur method is that the doctor solution that will contain desulfurizing agent sprays in the desulfurizing tower with the compression pump atomizing, form the high concentration range of atomization, then sulfur-containing smoke gas is imported in the range of atomization of desulfurizing tower, sulfur dioxide and sulfur trioxide are reacted with desulfurizing agent in the range of atomization, desulfurization resultant is very fast attached to forming the globule on the flue dust, be adsorbed on the eddy flow plate, when the globule reaches constant weight, fall tower bottom, the flue gas of purification is discharged to the atmosphere from the desulfurizing tower upper air vent.Carry out flue gas desulfurization with this device and sulfur method, its cost is higher, is difficult for being accepted by vast enterprise.
Summary of the invention
It is low to the objective of the invention is to design a kind of flue gas desulfurization cost, easily the equipment and the method for the comprehensive treatment of sulfur-containing flue-gas of being accepted by vast enterprise.
Technical scheme of the present invention is finished as follows, a kind of equipment of comprehensive treatment of sulfur-containing flue-gas, it includes a desulfurizing tower, it is characterized in that: between desulfurizing tower and chimney intake, be provided with a pretreater, be provided with two-layer atomizer aperture in the pretreater, between pretreater and desulfurizing tower, be connected with horizontal flue, be provided with backwash head in the horizontal flue, near pretreater and desulfurizing tower, be provided with a liquid storage tank that contains the alkali black liquor, between liquid storage tank and desulfurizing tower and pretreater and backwash head, be communicated with water pipe respectively through precipitation and filtration treatment.A kind of method of comprehensive treatment of sulfur-containing flue-gas is: 1. will introduce in the liquid storage tank through the alkali black liquor that contains that filters and precipitate, and standby as doctor solution; 2. with the flue gas of coal-burning boiler in flue is introduced pretreater, opening compression pump simultaneously makes the atomizer aperture in pretreater and the desulfurizing tower that doctor solution is atomized, the temperature that keeps the range of atomization is at 25-40 ℃, 3. the range of atomization that sulfur-containing smoke gas is introduced in the pretreater earlier carries out desulphurization reaction, enter the inherent range of atomization of desulfurizing tower by horizontal flue then and continue desulphurization reaction, the mixing pure qi (oxygen) that produces in the desulphurization reaction enters atmosphere from the desulfurizing tower exhanst gas outlet, product sodium sulfite in the reaction and sodium sulphate drop in the desulfurizing tower with the smokeshade and the globule and enter the black liquor pond from the lime-ash water out, and it is recycling to continue to make doctor solution through post precipitation.
The alkali black liquor that contains that the present invention discharges with papermaking or cotton pulp is used for administering sulfur-containing smoke gas as doctor solution, can save great lot of water resources and reduce treatment cost, is easy at business enterprise expand, reaches the effect of integrated pest management with sewage pollution treatment cigarette, has the important social benefit.
Description of drawings
Fig. 1 is the structural representation of present device.
Among the figure: 1, flue gas is introduced mouth; 2, water pipe; 3, atomizer aperture; 4, pretreater; 5, desulfurizing tower; 6, horizontal flue; 7, exhanst gas outlet; 8, eddy flow plate; 9, lime-ash water out; 10, liquid storage tank.
The specific embodiment
Describe embodiment in detail in conjunction with above accompanying drawing, the equipment of comprehensive treatment of sulfur-containing flue-gas of the present invention is the improvement to existing desulfurizing tower, it is between desulfurizing tower 5 and flue introduction mouth 1 pretreater 4 to be set, two-layer atomizer aperture 3 is arranged in the pretreater, between pretreater and desulfurizing tower, be communicated with horizontal flue 6, be provided with backwash head 11 in the horizontal flue, can dredge for a long time at dust stratification, the preferably preceding high back of horizontal flue is low certain slope, can conveniently discharge grey pulp water.Be provided with one near pretreater and the desulfurizing tower through containing alkali black liquor liquid storage tank 10 after precipitation and the cotton pulp of filtration treatment or the papermaking, between liquid storage tank and desulfurizing tower, pretreater, backwash head, be connected with water pipe 2 respectively, the method of this comprehensive treatment of sulfur-containing flue-gas is, 1. will through filtration and alkali black liquor (black liquid or cotton pulp black liquor all can) the introducing liquid storage tank that contains of precipitation process to make doctor solution standby.2. with the flue gas of two coal-burning boilers in flue is introduced pretreater, open compression pump simultaneously each atomizer aperture in pretreater and the desulfurizing tower atomized doctor solution, the temperature that keeps the range of atomization makes fog concentration reach certain value at 25-40 ℃.3. then sulfur-containing smoke gas is introduced pretreater earlier and carry out desulphurization reaction in the range of atomization, then through horizontal flue, enter inherent its range of atomization of desulfurizing tower and continue desulphurization reaction, the mixing pure qi (oxygen) that produces in the desulphurization reaction enters atmosphere from exhanst gas outlet 7, product sodium sulfite in the reaction and sodium sulphate are adsorbed on the eddy flow plate 8 with the smokeshade and the globule, wait to reach to drop on after certain particle size and the weight in the tower and enter the black liquor pond from lime-ash water out 9, it is recycling to continue to make doctor solution through post precipitation.After treating that alkalescence in the liquid storage tank reduces to a certain degree, use the new alkali black liquor that contains again instead.Can reach effect like this with waste water treatment waste gas.
Claims (2)
1, a kind of equipment of comprehensive treatment of sulfur-containing flue-gas, it includes a desulfurizing tower, it is characterized in that: between desulfurizing tower and chimney intake, be provided with a pretreater, be provided with two-layer atomizer aperture in the pretreater, between pretreater and desulfurizing tower, be connected with horizontal flue, be provided with backwash head in the horizontal flue, near pretreater and desulfurizing tower, be provided with a liquid storage tank that contains the alkali black liquor, between liquid storage tank and desulfurizing tower and pretreater and backwash head, be communicated with water pipe respectively through precipitation and filtration treatment.
2, a kind of method of comprehensive treatment of sulfur-containing flue-gas is: 1. will introduce in the liquid storage tank through the alkali black liquor that contains that filters and precipitate, and standby as doctor solution; 2. with the flue gas of coal-burning boiler in flue is introduced pretreater, opening compression pump simultaneously makes the atomizer aperture in pretreater and the desulfurizing tower that doctor solution is atomized, the temperature that keeps the range of atomization is at 25-40 ℃, 3. the range of atomization that sulfur-containing smoke gas is introduced in the pretreater earlier carries out desulphurization reaction, enter the inherent range of atomization of desulfurizing tower by horizontal flue then and continue desulphurization reaction, the mixing pure qi (oxygen) that produces in the desulphurization reaction enters atmosphere from the desulfurizing tower exhanst gas outlet, product sodium sulfite in the reaction and sodium sulphate drop in the desulfurizing tower with the smokeshade and the globule and enter the black liquor pond from the lime-ash water out, and it is recycling to continue to make doctor solution through post precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017387 CN101002996A (en) | 2006-01-20 | 2006-01-20 | Equipment and method for comprehensive treatment of sulfur-containing flue-gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017387 CN101002996A (en) | 2006-01-20 | 2006-01-20 | Equipment and method for comprehensive treatment of sulfur-containing flue-gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101002996A true CN101002996A (en) | 2007-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200610017387 Pending CN101002996A (en) | 2006-01-20 | 2006-01-20 | Equipment and method for comprehensive treatment of sulfur-containing flue-gas |
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| CN (1) | CN101002996A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804293A (en) * | 2010-04-06 | 2010-08-18 | 天津晓沃环保工程有限公司 | Flue gas desulfurization method of heating boiler and device thereof |
| CN101670231B (en) * | 2009-07-23 | 2011-08-24 | 何金整 | Device and process for converting calcium process desulfurization into temperature difference crystallizing ammonia process desulfurization |
| CN104109898A (en) * | 2014-07-08 | 2014-10-22 | 德清县浙北通讯器材有限公司 | Waste gas treatment device of pickling or electroplating equipment |
| CN108543407A (en) * | 2018-04-16 | 2018-09-18 | 哈尔滨理工大学 | Boiler flue gas purification desulfurizer |
| CN108642948A (en) * | 2018-06-07 | 2018-10-12 | 夹江县天翔纸业有限公司 | A kind of paper-making effluent treating process and processing unit |
| CN108800182A (en) * | 2018-08-01 | 2018-11-13 | 湖南恒瑞管桩科技有限公司 | Boiler flue gas desulfurization processing system |
| CN116832601A (en) * | 2023-07-27 | 2023-10-03 | 新乡化纤股份有限公司 | Comprehensive treatment method for boiler flue gas and pressure washing wastewater in viscose fiber industry |
-
2006
- 2006-01-20 CN CN 200610017387 patent/CN101002996A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670231B (en) * | 2009-07-23 | 2011-08-24 | 何金整 | Device and process for converting calcium process desulfurization into temperature difference crystallizing ammonia process desulfurization |
| CN101804293A (en) * | 2010-04-06 | 2010-08-18 | 天津晓沃环保工程有限公司 | Flue gas desulfurization method of heating boiler and device thereof |
| CN104109898A (en) * | 2014-07-08 | 2014-10-22 | 德清县浙北通讯器材有限公司 | Waste gas treatment device of pickling or electroplating equipment |
| CN108543407A (en) * | 2018-04-16 | 2018-09-18 | 哈尔滨理工大学 | Boiler flue gas purification desulfurizer |
| CN108642948A (en) * | 2018-06-07 | 2018-10-12 | 夹江县天翔纸业有限公司 | A kind of paper-making effluent treating process and processing unit |
| CN108800182A (en) * | 2018-08-01 | 2018-11-13 | 湖南恒瑞管桩科技有限公司 | Boiler flue gas desulfurization processing system |
| CN108800182B (en) * | 2018-08-01 | 2024-01-12 | 湖南恒瑞管桩科技有限公司 | Boiler flue gas desulfurization treatment system |
| CN116832601A (en) * | 2023-07-27 | 2023-10-03 | 新乡化纤股份有限公司 | Comprehensive treatment method for boiler flue gas and pressure washing wastewater in viscose fiber industry |
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