CN220878337U - Wet desulfurization circulating tower - Google Patents
Wet desulfurization circulating tower Download PDFInfo
- Publication number
- CN220878337U CN220878337U CN202322248198.2U CN202322248198U CN220878337U CN 220878337 U CN220878337 U CN 220878337U CN 202322248198 U CN202322248198 U CN 202322248198U CN 220878337 U CN220878337 U CN 220878337U
- Authority
- CN
- China
- Prior art keywords
- tower body
- tower
- flue gas
- air guide
- intercommunication
- 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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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 26
- 230000023556 desulfurization Effects 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000779 smoke Substances 0.000 claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 21
- 239000003546 flue gas Substances 0.000 claims description 21
- 238000004062 sedimentation Methods 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 16
- 230000003009 desulfurizing effect Effects 0.000 abstract description 6
- 239000002912 waste gas Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a wet desulfurization circulating tower which comprises a tower body, wherein a first spraying layer, a second spraying layer and a liquid collecting funnel are arranged in the tower body, the liquid collecting funnel is positioned between the first spraying layer and the second spraying layer, a smoke exhaust pipeline is arranged at the top of the tower body, an air inlet is arranged at the bottom of the tower body, a heating cavity is arranged on the smoke exhaust pipeline, the heating cavity surrounds the smoke exhaust pipeline, a smoke inlet is arranged at the upper part of the heating cavity, a smoke outlet is arranged at the lower part of the heating cavity, and the smoke outlet is communicated with the air inlet. The utility model reduces the water loss in the desulfurizing tower and avoids the problem of wet smoke plume on the tower top.
Description
Technical Field
The utility model relates to the technical field of flue gas desulfurization, in particular to a wet desulfurization circulating tower.
Background
The flue gas discharged by the fire coal boiler furnace contains a large amount of high-sulfur waste gas, the desulfurization treatment reaches more than 99% to reach the standard, the equipment used in the desulfurization treatment process is a wet desulfurization tower, the high-medium-high temperature flue gas of the existing wet desulfurization tower is contacted with a desulfurizing agent to generate a large amount of water vapor, and finally the water vapor is discharged out of the tower after desulfurization is finished, so that the water in the tower is scattered, and the saturated water vapor encounters condensation to generate the problem of wet smoke plume, as in the application number 201720453629.0, a single-tower double-circulation desulfurization tower is disclosed, the service life of a guiding device is prolonged by arranging a plurality of circular arc pipelines on the tower wall, but the structure does not block or reduce the transmission of lower water vapor to the upper layer, and the problem that a large amount of water vapor is discharged out of the tower still exists.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a wet desulfurization circulating tower which can reduce water loss in the desulfurization tower and avoid the problem of wet smoke plume.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a wet flue gas desulfurization circulating tower, includes the tower body, be provided with first spraying layer, second spraying layer, collection liquid funnel in the tower body, collection liquid funnel is located first spraying layer with between the second spraying layer, the top of tower body is provided with exhaust duct, the bottom of tower body is provided with the air inlet, be provided with the heating chamber on the exhaust duct, the heating chamber encircles exhaust duct, the upper portion of heating chamber is provided with the flue gas import, the lower part of heating chamber is provided with the exhanst gas outlet, exhanst gas outlet intercommunication the air inlet.
Further, the edge inscription of collection liquid funnel the tower body inner wall, be provided with the water conservancy diversion chamber outside the tower body, the water conservancy diversion chamber encircles the tower body, be provided with air guide inlet and air guide export on the tower body, collection liquid funnel is located the air guide inlet with between the air guide export, the air guide inlet with air guide export intercommunication the water conservancy diversion chamber, be provided with first defroster in the water conservancy diversion intracavity, be provided with the second defroster in the tower body, the second defroster is located the top of second spray layer.
Further, the flue gas inlet is tangent to the flue gas outlet in the heating cavity, and an ash outlet is formed in the bottom of the heating cavity.
Further, a heat conduction pipe is arranged in the flue gas channel, the heat conduction pipe horizontally penetrates through the flue gas channel, and two ends of the heat conduction pipe are respectively communicated with the heating cavity.
Further, the bottom of the tower body is provided with a first sedimentation tank, a second sedimentation tank, a first circulation tank and a second circulation tank are arranged outside the tower body, the upper portion of the first sedimentation tank is communicated with the first circulation tank, the first circulation tank is communicated with the first spraying layer, the second sedimentation tank is communicated with the liquid collecting funnel, the upper portion of the second sedimentation tank is communicated with the second circulation tank, and the second circulation tank is communicated with the second spraying layer.
The utility model has the following advantages: the high-temperature sulfur-containing waste gas is subjected to heat exchange with water vapor discharged out of the tower, so that saturated water vapor is changed into unsaturated water vapor to be discharged, and the problem of wet smoke plume on the top of the tower is avoided; the first demister and the second demister arranged in the tower body are matched, so that the water content discharged by the spray tower can be greatly reduced, and the loss of water is reduced; the flue gas inlet and the flue gas outlet are tangential to the heating cavity, so that the air flow flows in the heating cavity, part of dust can be deposited, and the dust removal effect is achieved; the first circulating tank, the first sedimentation tank, the second circulating tank and the second sedimentation tank are arranged, so that various desulfurizing agents can be replaced very conveniently according to actual conditions, the novel desulfurization device is applicable to various desulfurizing agents such as sodium hydroxide, hydrogen peroxide and limestone, and the problem of blockage of a spray head and a pipeline is avoided.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1, a tower body; 2. a smoke exhaust duct; 3. a first spray layer; 4. a second spray layer; 5. a liquid collection funnel; 6. a first sedimentation tank; 7. a first circulation tank; 8. a second sedimentation tank; 9. a second circulation tank; 10. an air inlet; 11. a diversion cavity; 12. an air guide inlet; 13. an air guide outlet; 14. a first mist eliminator; 15. a second demister; 16. a heating chamber; 17. a flue gas inlet; 18. a flue gas outlet; 19. an ash outlet; 20. a heat conduction pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in figure 1, 1. A wet desulfurization circulating tower, a second demister 15, a second spraying layer 4, a liquid collecting funnel 5 and a first spraying layer 3 are sequentially installed in a tower body 1 from top to bottom, the liquid collecting funnel 5 is positioned between the first spraying layer 3 and the second spraying layer 4, the liquid collecting funnel 5 is inscribed on the inner wall of the tower body 1, the second demister 15 and the first demister 14 are ridge type demisters, a smoke exhaust pipeline 2 is arranged at the top of the tower body 1, an air inlet 10 is arranged at the bottom of the tower body 1, a heating cavity 16 is installed on the smoke exhaust pipeline 2, the heating cavity 16 is in a columnar structure, the heating cavity 16 surrounds the smoke exhaust pipeline 2, a smoke inlet 17 is arranged at the upper part of the heating cavity 16, a smoke outlet 18 is arranged at the lower part of the heating cavity 16, the smoke outlet 18 is communicated with the air inlet 10, the smoke inlet 17 is tangent to the smoke outlet 18, an ash outlet 19 is arranged at the bottom of the heating cavity 16, the ash outlet 19 is plugged by using a flange, the tower body 1 is externally provided with a diversion cavity 11, the diversion cavity 11 is also distributed around the tower body 1, the tower body 1 is provided with a plurality of air guide inlets 12 and a plurality of air guide outlets 13, the air guide inlets 12 and the air guide outlets 13 are symmetrically distributed around the tower body 1, the air guide outlets 13 are positioned above the liquid collecting funnel 5, the air guide outlets 13 are positioned below the liquid collecting funnel 5, the air guide inlets 12 and the air guide outlets 13 are respectively communicated with the lower part and the upper part of the diversion cavity 11, the diversion cavity 11 is internally provided with a first demister 14, the first demister 14 is in a circular ring shape, the first demister 14 is sleeved in the diversion cavity 11, the first demister 14 is also a ridge type demister, the flue gas channel is internally provided with a plurality of heat conducting pipes 20, the heat conducting pipes 20 horizontally penetrate through the flue gas channel, two ends of the heat conducting pipes 20 are respectively communicated with the heating cavity 16, the bottom of the tower body 1 is provided with a first sedimentation tank 6, and the tower body 1 is externally provided with a second sedimentation tank 8, a first circulation tank 7, the second circulating pool 9, the supernatant part of first sedimentation tank 6 is linked together to first circulating pool 7, and first spraying layer 3 is linked together through the circulating pump pipeline to first circulating pool 7, and the bottom of second sedimentation tank 8 intercommunication liquid collecting funnel 5, the supernatant part of second sedimentation tank 8 is linked together to second circulating pool 9, and second circulating pool 9 passes through the circulating pump pipeline and links together second spraying layer 4.
The working principle of the utility model is as follows: the high-temperature sulfur-containing waste gas discharged by the boiler heats water vapor discharged from the tower body through the heating cavity, so that saturated steam discharged from the tower body is changed into unsaturated steam, meanwhile, the temperature of the sulfur-containing waste gas is reduced after heat exchange, the cooled waste gas is introduced into the spray tower for desulfurization treatment, the temperature of the high-temperature waste gas is reduced again after first desulfurization, the high-temperature sulfur-containing waste gas and the water vapor generated after heat transfer by contact with spray liquid move upwards through the diversion cavity together, the first demister in the diversion cavity removes the water vapor for the first time, the water content in the gas entering the upper layer is reduced, and finally, the water vapor is discharged after being defogged through the second desulfurization and the second demister and heated through the heating cavity; the whole process exchanges heat between the exhaust gas entering the tower body and the discharged water vapor, so that the temperature of the exhaust gas entering the tower body is reduced as a whole, the solubility of calcium sulfate is improved, the desulfurization capability is improved, the occurrence of pipeline blockage is reduced, and meanwhile, the wet smoke plume problem of the spray tower is avoided; the first demister demists and the second demister demists, so that the moisture content of the discharged tower body is effectively reduced, and the loss of moisture in the tower body is reduced; the first sedimentation tank and the first circulation tank, the second sedimentation tank and the second circulation tank can realize the circulation treatment of the spray liquid of the desulfurizing tower, and the desulfurization device is suitable for various desulfurizing agents such as sodium hydroxide, limestone and hydrogen peroxide, and can not cause the blockage problem of a spray head and a pipeline.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. The utility model provides a wet flue gas desulfurization circulating tower, includes tower body (1), its characterized in that: be provided with first layer (3), second layer (4) that sprays, collection liquid funnel (5) in tower body (1), collection liquid funnel (5) are located first layer (3) with between the second layer (4) that sprays, the top of tower body (1) is provided with exhaust duct (2), the bottom of tower body (1) is provided with air inlet (10), be provided with heating chamber (16) on exhaust duct (2), heating chamber (16) encircle exhaust duct (2), the upper portion of heating chamber (16) is provided with flue gas import (17), the lower part of heating chamber (16) is provided with flue gas export (18), flue gas export (18) intercommunication air inlet (10).
2. A wet desulfurization recycle column according to claim 1, wherein: the utility model discloses a tower body, tower body (1) and liquid collecting funnel (5), including tower body (1) and liquid collecting funnel, the edge inscription of liquid collecting funnel (5) tower body (1) inner wall, tower body (1) is provided with water conservancy diversion chamber (11) outward, water conservancy diversion chamber (11) encircle tower body (1), be provided with air guide inlet (12) and air guide export (13) on tower body (1), liquid collecting funnel (5) are located air guide inlet (12) with between air guide export (13), air guide inlet (12) with air guide export (13) intercommunication water conservancy diversion chamber (11), be provided with first defroster (14) in water conservancy diversion chamber (11), be provided with second defroster (15) in tower body (1), second defroster (15) are located the top of second spray layer (4).
3. A wet desulfurization recycle column according to claim 1, wherein: the flue gas inlet (17) is tangential to the flue gas outlet (18) the heating cavity (16), and the bottom of the heating cavity (16) is provided with an ash outlet (19).
4. A wet desulfurization recycle column according to claim 1, wherein: the smoke exhaust pipeline (2) is provided with a heat conduction pipe (20), the heat conduction pipe (20) horizontally penetrates through the smoke exhaust pipeline (2), and two ends of the heat conduction pipe (20) are respectively communicated with the heating cavity (16).
5. A wet desulfurization recycle column according to claim 1, wherein: the utility model discloses a tower, including tower body (1), first sedimentation tank (6), second sedimentation tank (8), first circulation tank (7), second circulation tank (9) are provided with outside tower body (1), the upper portion intercommunication of first sedimentation tank (6) first circulation tank (7), first circulation tank (7) intercommunication first spray layer (3), second sedimentation tank (8) intercommunication liquid collecting hopper (5), the upper portion intercommunication of second sedimentation tank (8) second circulation tank (9), second circulation tank (9) intercommunication second spray layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322248198.2U CN220878337U (en) | 2023-08-21 | 2023-08-21 | Wet desulfurization circulating tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322248198.2U CN220878337U (en) | 2023-08-21 | 2023-08-21 | Wet desulfurization circulating tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220878337U true CN220878337U (en) | 2024-05-03 |
Family
ID=90843204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322248198.2U Active CN220878337U (en) | 2023-08-21 | 2023-08-21 | Wet desulfurization circulating tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220878337U (en) |
-
2023
- 2023-08-21 CN CN202322248198.2U patent/CN220878337U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |