CN204017662U - Two-way Cycle " returns " type desulfurizing tower - Google Patents
Two-way Cycle " returns " type desulfurizing tower Download PDFInfo
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- CN204017662U CN204017662U CN201420513919.6U CN201420513919U CN204017662U CN 204017662 U CN204017662 U CN 204017662U CN 201420513919 U CN201420513919 U CN 201420513919U CN 204017662 U CN204017662 U CN 204017662U
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Abstract
The utility model discloses a kind of Two-way Cycle and " return " type desulfurizing tower, comprise one-level countercurrent absorber and secondary following current absorption tower and the cycle flue being communicated with one-level countercurrent absorber and secondary following current absorption tower, slurry pool entirety is formed at the below on one-level countercurrent absorber and secondary following current absorption tower and is integrally formed with described one-level countercurrent absorber and secondary following current absorption tower and cycle flue UNICOM the desulfurizing tower that character form structure " is returned " in cross section, and the slurries in slurry pool make one-level countercurrent absorber and bottom, secondary following current absorption tower be isolated from each other; Both can solve absorption tower interior flow field problem, and can reduce again and import and export flue adapter position, save the steel construction amount of flue and support.This tower takes up an area little, and total height is low, and energy consumption is low, and desulfuration efficiency is high, can reach the desulfuration efficiency of more than 99%, is a kind of Novel flue gas desulfurizing tower being applicable to burning high sulfur coal.
Description
Technical field
The utility model relates to a kind of flue gas desulphurization system, and particularly a kind of Two-way Cycle " returns " type desulfurizing tower.
Background technology
Number of patent application is the U-shaped desulfurizing tower of Two-way Cycle disclosed in 201210322751.6, its principal character comprises: the top of U-shaped desulfurizing tower is the following current tower and countercurrent tower mutually separated, following current tower is provided with smoke inlet, countercurrent tower is provided with exhanst gas outlet, the bottom of U-shaped desulfurizing tower is slurry pool, slurries divider wall is provided with in described slurry pool, slurry pool is divided into just in circulation before following current tower and oxidation pond and just in the Posterior circle of countercurrent tower and oxidation pond by slurries divider wall, slurries divider wall top is the exhaust gases passes being communicated with following current tower and countercurrent tower, in described following current tower, front circulation desulfurization district is set, Posterior circle desulfurization zone is set in countercurrent tower, be communicated with front circulation desulfurization district by front circulating pump with oxidation pond in circulation before described, be communicated with Posterior circle desulfurization zone by Posterior circle pump with oxidation pond in Posterior circle.The U-shaped desulfurizing tower of Two-way Cycle is particularly suitable for the flue gas desulfurization that burning high sulfur coal produces, and desulfuration efficiency can reach more than 99%.But the deficiency of still depositing both ways, one is the non-constant of flue gas flow field entering into spray column from liquid column tower, has a strong impact on the desulfuration efficiency of spray column; Two be the import and export position of tower at top, flue amount and support amount all quite large.
Therefore, need a kind of novel fume desulfurizing tower being applicable to burning high sulfur coal, both can solve absorption tower interior flow field problem, can reduce again and import and export flue adapter position, save the steel construction amount of flue and support.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of Two-way Cycle " to return " type desulfurizing tower, both can solve absorption tower interior flow field problem, can reduce again and import and export flue adapter position, saves the steel construction amount of flue and support.
Two-way Cycle of the present utility model " returns " type desulfurizing tower, comprise one-level countercurrent absorber and secondary following current absorption tower and the cycle flue being communicated with one-level countercurrent absorber and secondary following current absorption tower, slurry pool entirety is formed at the below on one-level countercurrent absorber and secondary following current absorption tower and is integrally formed with described one-level countercurrent absorber and secondary following current absorption tower and cycle flue UNICOM the desulfurizing tower that character form structure " is returned " in cross section, and the slurries in slurry pool make one-level countercurrent absorber and bottom, secondary following current absorption tower be isolated from each other;
Further, front circulation desulfurization district and Posterior circle desulfurization zone is respectively arranged with in described one-level countercurrent absorber and secondary following current absorption tower, gas approach is arranged between front circulation desulfurization district and slurry pool, exhanst gas outlet is arranged between Posterior circle desulfurization zone and slurry pool, and described slurry pool and front circulation desulfurization district and Posterior circle desulfurization zone are communicated with by circulating pump and arrange;
Further, described one-level countercurrent absorber is spray column, and described secondary following current absorption tower is liquid column tower;
Further, the angle of inclination of described gas approach and one-level countercurrent absorber wall is 7 °;
Further, described gas approach along one-level countercurrent absorber wall have a down dip inclined arrange;
Further, described front circulation desulfurization district and Posterior circle desulfurization zone all arrange spraying layer, and described spraying layer is made up of the shotcrete pipe of multiple equidistant distribution;
Further, described front circulation desulfurization district spraying layer is 1-6 floor, and described Posterior circle desulfurization zone spraying layer is 1 layer;
Further, described exhanst gas outlet arranges demister.
The beneficial effects of the utility model: Two-way Cycle of the present utility model " returns " type desulfurizing tower, gas approach position is lower; Flue gas enters in tower with certain angle, after contacting with slurry surface, bounce-back is walked upward, a large amount of slurries counter current contacting under spraying with spraying layer, tower once desulfurization before realizing, and good flue gas flow field can be ensured, rear tower adopts liquid column tower, after the once desulfurization of spray column, flue gas enters Hou Ta from top, with fluid column co-current contact, realizes secondary desulfuration; Flue gas after desulfurization is drawn from middle part, and be a public stock tank bottom it, centre does not arrange dividing plate; Desulfurizing tower of the present utility model both can solve absorption tower interior flow field problem, can reduce again and import and export flue adapter position, saved the steel construction amount of flue and support.This tower takes up an area little, and total height is low, and energy consumption is low, and desulfuration efficiency is high, can reach the desulfuration efficiency of more than 99%, is a kind of Novel flue gas desulfurizing tower being applicable to burning high sulfur coal.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is desulfurizing tower flow field simulation schematic diagram of the present utility model;
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, and Fig. 2 is desulfurizing tower flow field simulation schematic diagram of the present utility model; As shown in the figure: the Two-way Cycle in the present embodiment " returns " type desulfurizing tower, comprise one-level countercurrent absorber 1 and secondary following current absorption tower 2 and the cycle flue 3 being communicated with one-level countercurrent absorber 1 and secondary following current absorption tower 2, slurry pool 4 entirety is formed at the below on one-level countercurrent absorber 1 and secondary following current absorption tower 2 and is integrally formed with described one-level countercurrent absorber 1 and secondary following current absorption tower 2 and cycle flue 3 UNICOM the desulfurizing tower that character form structure " is returned " in cross section, and the slurries in slurry pool 4 make one-level countercurrent absorber 1 and bottom, secondary following current absorption tower 2 be isolated from each other; Slurry pool 4 is arranged at disengaging tower bottom, only arrange one, for one-level countercurrent absorber 1 and secondary following current absorption tower 2 provide the slurries of circulation, to be entered from top, secondary following current absorption tower 2 by cycle flue 3 through the flue gas of one-level countercurrent absorber 1 desulfurization process and carry out secondary desulfuration process, slurries in slurry pool 4 make one-level countercurrent absorber 1 not be communicated with mutually bottom desulfurizing tower with secondary following current absorption tower 2, and namely flue gas can only be gone up circulation and can not circulate bottom one-level countercurrent absorber 1 and secondary following current absorption tower 2.In slurry pool 4, the concentration of slurries controls to about 15%, PH and controls to about 5 ~ 6, can well solve water balance problem.Slurry pool 4 and oxidation air system connectivity.
In the present embodiment, front circulation desulfurization district 11 and Posterior circle desulfurization zone 21 is respectively arranged with in described one-level countercurrent absorber 1 and secondary following current absorption tower 2, gas approach 12 is arranged between front circulation desulfurization district 11 and slurry pool 4, exhanst gas outlet 22 is arranged between Posterior circle desulfurization zone 21 and slurry pool 4, and described slurry pool 4 and front circulation desulfurization district 11 and Posterior circle desulfurization zone 21 are communicated with by circulating pump and arrange; One-level countercurrent absorber 1 and secondary following current absorption tower 2 and flue 3 and gas approach 12 and exhanst gas outlet 22 UNICOM entirety form " π " type structure, former flue gas from gas approach 12 enter one-level countercurrent absorber 1 to contact with slurry surface after bounce-back walk to enter front circulation desulfurization district 11 and Posterior circle desulfurization zone 21 upward, then discharge through exhanst gas outlet 22; Gas approach 12 and exhanst gas outlet position low, flue amount and support amount all quite little, can reduce and import and export flue adapter position, save the steel construction amount of flue and support.
In the present embodiment, described one-level countercurrent absorber 1 is spray column, and described secondary following current absorption tower 2 is liquid column tower; Contact flue gas and the slurries counter current contacting of the upper circulation of bounce-back through slurry pool 4, tower once desulfurization before realizing, and good flue gas flow field can be ensured, rear tower adopts liquid column tower, and after the once desulfurization of spray column, flue gas enters Hou Ta from top, with fluid column co-current contact, realize secondary desulfuration; Flue gas after desulfurization is drawn from middle part.
In the present embodiment, described gas approach 12 along one-level countercurrent absorber 1 wall have a down dip inclined arrange, gas approach position, absorption tower is lower; Entry bottom inclination angle, ensures that flue gas enters in tower with certain angle, is convenient to contact rear bounce-back with slurry surface and walks upward, with a large amount of slurries counter current contacting in front circulation desulfurization district 11.
In the present embodiment, be preferably, described gas approach 12 is 7 ° with the angle of inclination of one-level countercurrent absorber 1 wall.
In the present embodiment, described front circulation desulfurization district 11 and Posterior circle desulfurization zone 21 all arrange spraying layer, and described spraying layer is made up of the shotcrete pipe of multiple equidistant distribution; Down, the mouth of pipe of Posterior circle desulfurization zone 21 upward for the shotcrete pipe mouth of pipe in front circulation desulfurization district 11.
Be preferably, described front circulation desulfurization district 11 spraying layer is 1-6 floor, and described Posterior circle desulfurization zone 21 spraying layer is 1-2 layer.
In the present embodiment, described exhanst gas outlet 22 arranges demister, controls flue gas droplet content at 75mg/Nm
3below enter chimney again and enter air.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. a Two-way Cycle " returns " type desulfurizing tower, it is characterized in that: comprise one-level countercurrent absorber and secondary following current absorption tower and the cycle flue being communicated with one-level countercurrent absorber and secondary following current absorption tower, slurry pool entirety is formed at the below on one-level countercurrent absorber and secondary following current absorption tower and is integrally formed with described one-level countercurrent absorber and secondary following current absorption tower and cycle flue UNICOM the desulfurizing tower that character form structure " is returned " in cross section, and the slurries in slurry pool make one-level countercurrent absorber and bottom, secondary following current absorption tower be isolated from each other.
2. Two-way Cycle according to claim 1 " returns " type desulfurizing tower, it is characterized in that: in described one-level countercurrent absorber and secondary following current absorption tower, be respectively arranged with front circulation desulfurization district and Posterior circle desulfurization zone, gas approach is arranged between front circulation desulfurization district and slurry pool, exhanst gas outlet is arranged between Posterior circle desulfurization zone and slurry pool, and described slurry pool and front circulation desulfurization district and Posterior circle desulfurization zone are communicated with by circulating pump and arrange.
3. Two-way Cycle according to claim 2 " returns " type desulfurizing tower, it is characterized in that: described one-level countercurrent absorber is spray column, and described secondary following current absorption tower is liquid column tower.
4. Two-way Cycle according to claim 2 " returns " type desulfurizing tower, it is characterized in that: described gas approach along one-level countercurrent absorber wall have a down dip inclined arrange.
5. Two-way Cycle according to claim 4 " returns " type desulfurizing tower, it is characterized in that: the angle of inclination of described gas approach and one-level countercurrent absorber wall is 7 °.
6. Two-way Cycle according to claim 2 " returns " type desulfurizing tower, it is characterized in that: described front circulation desulfurization district and Posterior circle desulfurization zone all arrange spraying layer, and described spraying layer is made up of the shotcrete pipe of multiple equidistant distribution.
7. Two-way Cycle according to claim 6 " returns " type desulfurizing tower, it is characterized in that: described front circulation desulfurization district spraying layer is 1-6 floor, and described Posterior circle desulfurization zone spraying layer is 1 layer.
8. Two-way Cycle according to claim 2 " returns " type desulfurizing tower, it is characterized in that: described exhanst gas outlet arranges demister.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513919.6U CN204017662U (en) | 2014-09-05 | 2014-09-05 | Two-way Cycle " returns " type desulfurizing tower |
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| CN201420513919.6U CN204017662U (en) | 2014-09-05 | 2014-09-05 | Two-way Cycle " returns " type desulfurizing tower |
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| CN204017662U true CN204017662U (en) | 2014-12-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166440A (en) * | 2016-08-30 | 2016-11-30 | 杭州玺清环保科技有限公司 | A kind of twin-stage four district zoarium high effective desulphurization device |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
-
2014
- 2014-09-05 CN CN201420513919.6U patent/CN204017662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166440A (en) * | 2016-08-30 | 2016-11-30 | 杭州玺清环保科技有限公司 | A kind of twin-stage four district zoarium high effective desulphurization device |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
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