CN204051420U - A kind of multistage compound ammonia process desulfuration tower - Google Patents
A kind of multistage compound ammonia process desulfuration tower Download PDFInfo
- Publication number
- CN204051420U CN204051420U CN201420460810.0U CN201420460810U CN204051420U CN 204051420 U CN204051420 U CN 204051420U CN 201420460810 U CN201420460810 U CN 201420460810U CN 204051420 U CN204051420 U CN 204051420U
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- China
- Prior art keywords
- shower
- absorber portion
- circulating pump
- absorption tower
- ammonium sulfate
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Abstract
The utility model discloses a kind of multistage compound ammonia process desulfuration tower, comprise absorption tower, crystallizing evaporator and ammonium sulfate tank, first shower is installed in the first absorber portion, first shower is connected with the first ammonia vessel, second shower is installed in the second absorber portion, first water leg is installed below the second shower, first water leg is connected with ammonium sulfate tank, ammonium sulfate tank is connected with the second shower by the first circulating pump, first circulating pump is also connected with crystallizing evaporator, crystallizing evaporator is connected with ammonium sulfate tank, 3rd shower is installed in the 3rd absorber portion, below 3rd shower, the second water leg is installed, second water leg is connected with the second ammonia vessel, second ammonia vessel is connected with the 3rd shower by the second circulating pump, the bottom on absorption tower is provided with into mouth, the top on absorption tower is provided with exhaust opening.The utility model reaction is more complete, and the utilization rate of absorbent is higher.
Description
[technical field]
The utility model relates to the technical field of desulfuration absorbing tower, particularly a kind of technical field of multistage compound ammonia process desulfuration tower.
[background technology]
Sulfur dioxide affects larger gaseous contaminant in atmosphere pollution, has high risks to human body, environment and the ecosystem.Along with the increasingly stringent of environmental requirement, the problem of S02 discharge more and more receives publicity.Sulfur dioxide mainly stems from the combustion process of the fossil fuel such as coal, oil, and the roasting of ore, the fume emission of smelting process.Wherein various burning boiler particularly power plant boiler smoke evacuation there is the features such as concentration is low, exhaust gas volumn is large, floating dust is many and be difficult to administer.
Wet process of FGD is the main sulfur method that domestic and international thermal power plant adopts always, and for a long time, the desulfurization of calcium method occupies the main status of sulfur removal technology, but this is owned by France in " abandoning " technique, and its desulfurization product gypsum is piled up and easily caused secondary pollution.The ammonia process of desulfurization belongs to recovery process, and the alkalescence of ammonia is better than calcium-based desulfurizing agent, and its reaction absorbing SO2 is solution-air or gas-solid/liquid/gas reactions, and compared to the gas-solid reaction of calcium-based desulfurizing agent, ammonia process of desulfurization speed is faster, and reaction is more complete, and the utilization rate of absorbent is higher.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of multistage compound ammonia process desulfuration tower, and flue gas and ammoniacal liquor can be made to react more complete, and the utilization rate of ammonia absorption agent is higher.
For achieving the above object, the utility model proposes a kind of multistage compound ammonia process desulfuration tower, comprise absorption tower, crystallizing evaporator and ammonium sulfate tank, described absorption tower is from bottom to up successively by the first absorber portion, second absorber portion and the 3rd absorber portion composition, first shower is installed in the first absorber portion, first shower is connected with the first ammonia vessel, second shower is installed in the second absorber portion, first water leg is installed below the second shower, first water leg is connected with ammonium sulfate tank, ammonium sulfate tank is connected with the second shower by the first circulating pump, first circulating pump is also connected with crystallizing evaporator, crystallizing evaporator is connected with ammonium sulfate tank, in described 3rd absorber portion, the 3rd shower is installed, below 3rd shower, the second water leg is installed, second water leg is connected with the second ammonia vessel, second ammonia vessel is connected with the 3rd shower by the second circulating pump, the bottom on described absorption tower is provided with into mouth, the top on absorption tower is provided with exhaust opening.
As preferably, above described 3rd shower, demister is installed, has some S type passages in described demister, between described exhaust opening and absorption tower, primary heater is installed.
As preferably, described first circulating pump is connected with crystallizing evaporator by secondary heater, and crystallizing evaporator is connected with ammonium sulfate tank by centrifuge, and centrifuge is connected with drying machine.
As preferably, be provided with the 3rd circulating pump between described first ammonia vessel and absorption tower, the 3rd circulating pump is connected with bottom absorption tower.
The beneficial effects of the utility model: the utility model carries out pre-wash dedusting and Quench cooling process by the first absorber portion to flue gas, and the second absorber portion adds the absorption that SO2 is carried out in ammonia absorption agent, and this is the first absorber portion; 3rd absorber portion only adds ammoniacal liquor, and this is the second absorber portion, and the clean flue gas after desulfurization is discharged by exhaust opening after primary heater heats up, and flue gas and ammoniacal liquor can be made to react more complete, and the utilization rate of ammonia absorption agent is higher.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the main TV structure figure of a kind of multistage of the utility model compound ammonia process desulfuration tower.
[detailed description of the invention]
Consult Fig. 1, a kind of multistage compound of the utility model ammonia process desulfuration tower, comprise absorption tower 4, crystallizing evaporator 6 and ammonium sulfate tank 7, described absorption tower 4 is from bottom to up successively by the first absorber portion 1, second absorber portion 2 and the 3rd absorber portion 3 form, first shower 11 is installed in first absorber portion 1, first shower 11 is connected with the first ammonia vessel 12, second shower 21 is installed in second absorber portion 2, first water leg 22 is installed below second shower 21, first water leg 22 is connected with ammonium sulfate tank 7, ammonium sulfate tank 7 is connected with the second shower 21 by the first circulating pump 81, first circulating pump 81 is also connected with crystallizing evaporator 6, crystallizing evaporator 6 is connected with ammonium sulfate tank 7, in described 3rd absorber portion 3, the 3rd shower 31 is installed, second water leg 32 is installed below the 3rd shower 31, second water leg 32 is connected with the second ammonia vessel 33, second ammonia vessel 33 is connected with the 3rd shower 31 by the second circulating pump 82, the bottom on described absorption tower 4 is provided with into mouth 41, the top on absorption tower 4 is provided with exhaust opening 42.
Above described 3rd shower 31, demister 9 is installed, some S type passages 91 are had in described demister 9, between described exhaust opening 42 and absorption tower 4, primary heater 43 is installed, described first circulating pump 81 is connected with crystallizing evaporator 6 by secondary heater 61, crystallizing evaporator 6 is connected with ammonium sulfate tank 7 by centrifuge 5, centrifuge 5 is connected with drying machine 51,3rd circulating pump the 83, three circulating pump 83 is installed between described first ammonia vessel 12 and absorption tower 4 be connected with bottom absorption tower 4.
Utility model works process:
In the course of the work, carry out pre-wash dedusting and Quench cooling process by the first absorber portion 1 pair of flue gas, the second absorber portion 2 adds the absorption that SO2 is carried out in ammonia absorption agent to a kind of multistage compound of the utility model ammonia process desulfuration tower, and this was the first absorption stage; 3rd absorber portion 3 only adds ammoniacal liquor, and this was the second absorption stage, and the clean flue gas after desulfurization is discharged by exhaust opening after primary heater heats up, and flue gas and ammoniacal liquor can be made to react more complete, and the utilization rate of ammonia absorption agent is higher.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (4)
1. a multistage compound ammonia process desulfuration tower, it is characterized in that: comprise absorption tower (4), crystallizing evaporator (6) and ammonium sulfate tank (7), described absorption tower (4) is from bottom to up successively by the first absorber portion (1), second absorber portion (2) and the 3rd absorber portion (3) composition, first shower (11) is installed in the first absorber portion (1), first shower (11) is connected with the first ammonia vessel (12), second shower (21) is installed in the second absorber portion (2), second shower (21) below is provided with the first water leg (22), first water leg (22) is connected with ammonium sulfate tank (7), ammonium sulfate tank (7) is connected with the second shower (21) by the first circulating pump (81), first circulating pump (81) is also connected with crystallizing evaporator (6), crystallizing evaporator (6) is connected with ammonium sulfate tank (7), in described 3rd absorber portion (3), the 3rd shower (31) is installed, 3rd shower (31) below is provided with the second water leg (32), second water leg (32) is connected with the second ammonia vessel (33), second ammonia vessel (33) is connected with the 3rd shower (31) by the second circulating pump (82), the bottom on described absorption tower (4) is provided with into mouth (41), the top on absorption tower (4) is provided with exhaust opening (42).
2. a kind of multistage compound ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: described 3rd shower (31) top is provided with demister (9), have some S type passages (91) in described demister (9), primary heater (43) is installed between described exhaust opening (42) and absorption tower (4).
3. a kind of multistage compound ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: described first circulating pump (81) is connected with crystallizing evaporator (6) by secondary heater (61), crystallizing evaporator (6) is connected with ammonium sulfate tank (7) by centrifuge (5), centrifuge (5) is connected with drying machine (51).
4. a kind of multistage compound ammonia process desulfuration tower as claimed in claim 1, it is characterized in that: be provided with the 3rd circulating pump (83) between described first ammonia vessel (12) and absorption tower (4), the 3rd circulating pump (83) is connected with absorption tower (4) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460810.0U CN204051420U (en) | 2014-08-14 | 2014-08-14 | A kind of multistage compound ammonia process desulfuration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460810.0U CN204051420U (en) | 2014-08-14 | 2014-08-14 | A kind of multistage compound ammonia process desulfuration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204051420U true CN204051420U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460810.0U Expired - Fee Related CN204051420U (en) | 2014-08-14 | 2014-08-14 | A kind of multistage compound ammonia process desulfuration tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN204051420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914105A (en) * | 2015-12-25 | 2017-07-04 | 日立造船株式会社 | Gas water washing device |
-
2014
- 2014-08-14 CN CN201420460810.0U patent/CN204051420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914105A (en) * | 2015-12-25 | 2017-07-04 | 日立造船株式会社 | Gas water washing device |
| CN106914105B (en) * | 2015-12-25 | 2019-12-31 | 日立造船株式会社 | Gas water washing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150814 |
|
| EXPY | Termination of patent right or utility model |