CN219111308U - Waste gas absorption and purification device for sewage station - Google Patents
Waste gas absorption and purification device for sewage station Download PDFInfo
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- CN219111308U CN219111308U CN202320153195.8U CN202320153195U CN219111308U CN 219111308 U CN219111308 U CN 219111308U CN 202320153195 U CN202320153195 U CN 202320153195U CN 219111308 U CN219111308 U CN 219111308U
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Abstract
The utility model belongs to a waste gas absorption and purification device of a sewage station; the sewage station waste gas pipeline is connected with an exhaust funnel through a biological treatment device, and a water washing device for adjusting the treatment load of the biological treatment device and absorbing waste gas which is easy to dissolve in water is arranged between the sewage station waste gas pipeline and the biological treatment device; through setting up washing device not only can cushion waste gas, can also realize absorbing the composition that is easily soluble in water in the waste gas to reach the characteristics that reduce biological treatment device load and realize gaseous emission up to standard in the aiutage.
Description
Technical Field
The utility model belongs to the technical field of air purification, and particularly relates to a waste gas absorption and purification device for a sewage station.
Background
The components in the wastewater in the coal chemical industry are complex, and part of the wastewater can be blown out under the condition of aeration of a sewage station, and the waste gas contains phenols, carbon disulfide, hydrogen sulfide and NH 3 The non-methane total hydrocarbon, methanol, odor and other components which affect the environment and cause bad influence on the periphery of the device; in order to overcome the technical problems, part of enterprises adopt the method that the waste gas pipeline of the sewage station is connected with the biological treatment device for absorbing waste gas produced in the waste water, but in the actual operation process, the waste gas quantity is unstable due to factors such as the quantity and the components of the waste water, and when the quantity of the waste gas is small and the components are single, the biological treatment device can meet the requirement of waste gas treatment, so that the standard emission of an exhaust pipe is realized; when the amount of the exhaust gas is large and the composition is complex, the treatment load of the biological treatment device is large, and the exhaust gas discharged from the exhaust pipe still has the risk of polluting the environment.
Disclosure of Invention
The utility model aims to provide the waste gas absorption and purification device for the sewage station, which not only can buffer waste gas, but also can absorb water-soluble components in the waste gas so as to reduce the load of a biological treatment device and achieve the characteristic of standard gas emission in an exhaust barrel.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a sewage station exhaust gas absorption purifier, includes sewage station exhaust gas pipeline, and sewage station exhaust gas pipeline links to each other with the aiutage through biological treatment device, be equipped with between sewage station exhaust gas pipeline and the biological treatment device and be used for adjusting biological treatment device treatment load and carry out absorbing washing device to the waste gas that easily dissolves water.
The beneficial effects of the utility model are as follows: through setting up washing device not only can cushion waste gas, can also realize absorbing the composition that is easily soluble in water in the waste gas to reach the characteristics that reduce biological treatment device load and realize gaseous emission up to standard in the aiutage.
The utility model is further provided with: an adsorption device for reducing the total non-methane hydrocarbon content in the waste gas component is arranged between the biological treatment device and the exhaust funnel.
The utility model is further provided with: the sewage station waste gas pipeline and the biological treatment device are sequentially provided with a first tee joint, a second regulating valve and a second tee joint, the third end of the first tee joint is connected with the inlet of the water washing device through the first regulating valve, and the outlet of the water washing device is connected with the third end of the second tee joint through the check valve.
The beneficial effects are that: the second regulating valve and the water washing device are arranged in parallel, so that flexible regulation can be realized according to the components of the waste gas and the quantity of the waste gas, and when the components of the waste gas contain components which can be absorbed by water or the quantity of the waste gas is overlarge, the waste gas in the waste gas pipeline of the sewage station can pass through the water washing device to achieve the purposes of buffering and absorbing the absorbable gas; when the amount of the waste gas is small and the waste gas is not easy to be absorbed by water, the waste gas can directly enter the biological treatment device through the second regulating valve to be absorbed.
The utility model is further provided with: an induced draft fan, a third tee joint, a third regulating valve and a fourth tee joint are sequentially arranged between the outlet of the biological treatment device and the exhaust barrel; a non-methane total hydrocarbon content detection device is arranged between the induced draft fan and the third tee joint; the third end of the third tee joint is connected with the inlet of the adsorption device through a fourth regulating valve, and the outlet of the adsorption device is connected with the third end of the fourth tee joint through a fifth regulating valve.
The utility model is further provided with: the washing device comprises a first packing layer arranged in the middle, a washing spray pipeline with a spray head is arranged on the upper portion of the first packing layer, an inlet of the washing device is arranged at the top of the washing spray pipeline, an outlet of the washing device is arranged on one side of the lower portion of the first packing layer, a circulating water outlet is arranged at the bottom of the washing device, and the circulating water outlet is connected with the washing spray pipeline through a first circulating pump.
The utility model is further provided with: the biological treatment device comprises a second packing layer arranged in the middle, a spray pipeline with a spray head and a demisting silk screen are sequentially arranged on the upper portion of the second packing layer, an outlet of the biological treatment device is arranged on the upper portion of the demisting silk screen, a biological treatment device inlet is arranged on the lower portion of the second packing layer, a circulating water outlet is arranged on the lower portion of the biological treatment device inlet, and the circulating water outlet is connected with the spray pipeline through a second circulating pump.
The utility model is further provided with: the device also comprises a dosing device which is respectively communicated with the lower parts of the biological treatment device and the water washing device through pipelines.
The utility model is further provided with: the adsorption device comprises an adsorption packing layer arranged in the middle, an outlet of the adsorption device is arranged at the top of the adsorption packing layer, and an inlet of the adsorption device is arranged at the lower part of the adsorption packing layer.
The utility model is further provided with: the bottom of the biological treatment device is connected with the external drainage tank through a pipeline.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1, a water washing device; 2. a biological treatment device; 3. an adsorption device; 4. an exhaust pipe; 5. a dosing device; 6. an outer drainage pool; 7. a non-methane total hydrocarbon content detection device; 8. a first circulation pump; 9. a second circulation pump; 10. an induced draft fan; 11. waste gas pipeline of sewage station; 12. a first tee; 13. a first regulating valve; 14. a second regulating valve; 15. a fourth tee; 16. washing the spray pipeline; 17. a first filler layer; 18. a fifth regulating valve; 19. a non-return valve; 20. a second tee; 21. adsorbing the filler layer; 22. a third regulating valve; 23. a third tee; 24. a fourth regulating valve; 25. a demisting silk screen; 26. a spray pipe; 27. and a second filler layer.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Referring to fig. 1, a sewage station waste gas absorbing and purifying device comprises a sewage station waste gas pipeline 11, wherein the sewage station waste gas pipeline 11 is connected with an exhaust funnel 4 through a biological treatment device 2, and a water washing device 1 for adjusting the treatment load of the biological treatment device 2 and absorbing waste gas which is easy to dissolve in water is arranged between the sewage station waste gas pipeline 11 and the biological treatment device 2. According to the utility model, the water washing device 1 is arranged, so that the waste gas of the sewage station can be buffered and the waste gas which is easy to dissolve in water can be absorbed, the treatment load of the biological treatment device 2 is reduced, and the discharge of the exhaust pipe 4 reaching the standard is ensured.
Further, an adsorption device 3 for reducing the total non-methane hydrocarbon content in the exhaust gas component is arranged between the biological treatment device 2 and the exhaust pipe 4. The utility model is also provided with the adsorption device 3 for reducing the content of the non-methane total hydrocarbon in the waste gas component, and the waste gas can be adsorbed by the adsorption device 3 when the content of the non-methane total hydrocarbon is higher by analyzing the gas discharged from the biological treatment device 2 so as to realize the standard discharge of the gas in the exhaust funnel 4.
Further, a first tee joint 12, a second regulating valve 14 and a second tee joint 20 are sequentially arranged between the waste gas pipeline 11 of the sewage station and the biological treatment device 2, a third end of the first tee joint 12 is connected with an inlet of the water washing device 1 through a first regulating valve 13, and an outlet of the water washing device 1 is connected with a third end of the second tee joint 20 through a check valve 19. The second regulating valve 14 and the water washing device 1 are arranged in parallel, the purpose of regulating according to the exhaust gas component and the amount of the exhaust gas can be realized, and when the exhaust gas component contains the component which can be absorbed by water or the amount of the exhaust gas is too large, the exhaust gas in the exhaust gas pipeline 11 of the sewage station can pass through the water washing device 1 so as to achieve the purposes of buffering and absorbing the absorbable gas; when the amount of the exhaust gas is small and is not easily absorbed by water, the exhaust gas can directly enter the biological treatment device 2 through the second regulating valve 14 for absorption treatment.
Further, an induced draft fan 10, a third tee 23, a third regulating valve 22 and a fourth tee 15 are sequentially arranged between the outlet of the biological treatment device 2 and the exhaust barrel 4; a non-methane total hydrocarbon content detection device 7 is arranged between the induced draft fan 10 and the third tee joint 23; the third end of the third tee 23 is connected with the inlet of the adsorption device 3 through a fourth regulating valve 24, and the outlet of the adsorption device 3 is connected with the third end of the fourth tee 15 through a fifth regulating valve 18. The third regulating valve 22 and the adsorption device 3 are arranged in parallel, the non-methane total hydrocarbon content detection device 7 is arranged at the rear part of the induced draft fan 10, the non-methane total hydrocarbon content in the waste gas is detected by the non-methane total hydrocarbon content detection device 7, and when the content exceeds a preset threshold value, the waste gas can enter the adsorption device 3 for adsorption, so that the later standard emission is realized; when the content does not exceed the preset threshold value, the gas can directly enter the exhaust funnel 4 through the third regulating valve 22 to realize the discharge.
Further, the washing device 1 comprises a first packing layer 17 arranged in the middle, a washing spray pipeline 16 with a spray head is arranged on the upper portion of the first packing layer 17, an inlet of the washing device 1 is arranged at the top of the washing spray pipeline 16, an outlet of the washing device 1 is arranged on one side of the lower portion of the first packing layer 17, a circulating water outlet is arranged at the bottom of the washing device 1, and the circulating water outlet is connected with the washing spray pipeline 16 through a first circulating pump 8. The inlet of the water washing device 1 is arranged at the upper part, the outlet of the water washing device 1 is arranged at the lower part, and the arrangement can realize the characteristics that the gas stays in the water washing device 1 for a long time so as to realize the buffering and the sufficient contact with water so as to be convenient for absorption; further, the first packing layer 17 is arranged in the utility model, and the water washing spray pipeline 16 sprays circulating water to be contacted with gas and then falls into the first packing layer 17 under the action of gravity, so that the contact time can be increased in the process that the gas passes through the first packing layer 17, and the water washing absorption is more sufficient.
Further, the biological treatment device 2 comprises a second packing layer 27 arranged in the middle, a spraying pipeline 26 with a spray head and a demisting silk screen 25 are sequentially arranged on the upper portion of the second packing layer 27, an outlet of the biological treatment device 2 is arranged on the upper portion of the demisting silk screen 25, an inlet of the biological treatment device 2 is arranged on the lower portion of the second packing layer 27, a circulating water outlet is arranged on the lower portion of the inlet of the biological treatment device 2, and the circulating water outlet is connected with the spraying pipeline 26 through a second circulating pump 9. The waste gas enters the biological treatment device 2, is consumed and absorbed by the second packing layer 27 to be difficult to dissolve in water, is further washed by the spraying pipeline 26, and is discharged after water drops are removed by the demister wire mesh 25.
The utility model also comprises a dosing device 5, and the dosing device 5 is respectively communicated with the lower parts of the biological treatment device 2 and the water washing device 1 through pipelines. The chemical adding device 5 is used for adding chemicals into the bottom circulating liquid of the water washing device 1 and the biological treatment device 2 respectively and is used for adjusting acid and alkali and nutrition of the circulating water.
Further, the adsorption device 3 comprises an adsorption packing layer 21 arranged in the middle, an outlet of the adsorption device 3 is arranged at the top of the adsorption packing layer 21, and an inlet of the adsorption device 3 is arranged at the lower part of the adsorption packing layer 21. The gas enters the adsorption device 3 and then contacts with the adsorption packing layer 21, and the gas is discharged through the exhaust pipe 4 after being adsorbed by the adsorption packing layer 21.
Further, the bottom of the biological treatment device 2 is connected with an external drainage tank 6 through a pipeline. The circulating liquid at the bottom of the biological treatment device 2 is discharged to the outer drainage tank 6 through a pipeline after being used to a certain extent, and can be treated by backflow to a sewage station in the later period, and meanwhile, the outer drainage tank 6 can also be used for balancing the water quantity and water quality of the system.
The working principle of the utility model is as follows: waste gas collected from a sewage station is sent into the device through a waste gas pipeline 11 of the sewage station by the suction effect of an induced draft fan, the waste gas is sent into a water washing device 1 through a third end of a first tee joint 12 and a first regulating valve 13, water washing is carried out through a water washing spray pipeline 16 of the water washing device 1, the water washing time can be prolonged by a first packing layer 17, so that water washing absorption is more sufficient, 80% of water soluble components in the waste gas can be washed out after the waste gas is washed by the water washing device 1, and harmful components in the waste gas are reduced to 30% after the waste gas passes through a check valve 19; in the actual use process, the second regulating valve 14 and the water washing device 1 are arranged in parallel, so that the opening degrees of the first regulating valve 13 and the second regulating valve 14 can be regulated according to the actual conditions, the full opening of the first regulating valve 13 or the second regulating valve 14 can be realized, the opening degrees of the first regulating valve 13 and the second regulating valve 14 can be regulated, the water washing degree of waste gas can be easily controlled, and the concentration of waste gas at the rear section can be regulated; the waste gas passing through the water washing device 1 and/or the second regulating valve 14 further enters the biological treatment device 2, the components which are difficult to dissolve in water are absorbed through the filler in the second filler layer 27, then water washing and demisting are carried out through the spray pipeline 26 and the demisting silk screen 25, and the gas is discharged under the action of the induced draft fan 10, in the process, about 95% of the components which are easy to dissolve in water in the waste gas can be removed, the removal rate of the components which are difficult to dissolve in water is about 60%, and the overall removal rate is about 90%; the gas is made to travel to the rear section by the action of the induced draft fan 10, the non-methane total hydrocarbon content detection device 7 analyzes the non-methane total hydrocarbon content in the waste gas component in the traveling process, when the non-methane total hydrocarbon content in the waste gas component is smaller than 100mg/m, the third regulating valve 22 is opened to directly discharge the waste gas from the exhaust drum 4, when the non-methane total hydrocarbon content in the waste gas component is not smaller than 100mg/m, the fourth regulating valve 24 is opened, the waste gas enters the adsorption device 3 and then contacts the adsorption packing layer 21, the gas is adsorbed, and the exhaust drum 4 can discharge after the adsorption treatment; meanwhile, the utility model also provides a dosing device which can add medicines into the bottom circulating liquid of the water washing device 1 and the biological treatment device 2, and realize circulation in the water washing device 1 and the biological treatment device 2 respectively through the first circulating pump 8 and the second circulating pump 9, and the absorption efficiency is improved by adjusting the acid and alkali and nutrition of the circulating water; the utility model can flexibly control the processing load according to the load change by arranging the water washing device 1, the biological treatment device 2 and the adsorption device 3 and arranging the water washing bypass and the adsorption device bypass device, the non-methane total hydrocarbon content detection device 7 and the related regulating valve device so as to realize the stable discharge of the gas in the exhaust funnel 4.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a sewage station exhaust gas absorption purifier, includes sewage station exhaust gas pipeline (11), and sewage station exhaust gas pipeline (11) link to each other with aiutage (4) through biological treatment device (2), its characterized in that: a water washing device (1) for adjusting the treatment load of the biological treatment device (2) and absorbing the waste gas which is easy to dissolve in water is arranged between the waste gas pipeline (11) of the sewage station and the biological treatment device (2).
2. The waste gas absorbing and purifying device for a sewage station according to claim 1, wherein: an adsorption device (3) for reducing the total non-methane hydrocarbon content in the waste gas component is arranged between the biological treatment device (2) and the exhaust funnel (4).
3. The waste gas absorbing and purifying device for a sewage station according to claim 1, wherein: a first tee joint (12), a second regulating valve (14) and a second tee joint (20) are sequentially arranged between the sewage station exhaust gas pipeline (11) and the biological treatment device (2), the third end of the first tee joint (12) is connected with the inlet of the water washing device (1) through a first regulating valve (13), and the outlet of the water washing device (1) is connected with the third end of the second tee joint (20) through a check valve (19).
4. A waste gas absorbing and purifying device for a sewage station according to claim 2, wherein: an induced draft fan (10), a third tee joint (23), a third regulating valve (22) and a fourth tee joint (15) are sequentially arranged between the outlet of the biological treatment device (2) and the exhaust funnel (4);
a non-methane total hydrocarbon content detection device (7) is arranged between the induced draft fan (10) and the third tee joint (23);
the third end of the third tee joint (23) is connected with the inlet of the adsorption device (3) through a fourth regulating valve (24), and the outlet of the adsorption device (3) is connected with the third end of the fourth tee joint (15) through a fifth regulating valve (18).
5. The waste gas absorbing and purifying device for a sewage station according to claim 1, wherein: the washing device (1) comprises a first packing layer (17) arranged in the middle, a washing spraying pipeline (16) with a spray head is arranged on the upper portion of the first packing layer (17), an inlet of the washing device (1) is arranged at the top of the washing spraying pipeline (16), an outlet of the washing device (1) is arranged on one side of the lower portion of the first packing layer (17), a circulating water outlet is arranged at the bottom of the washing device (1), and the circulating water outlet is connected with the washing spraying pipeline (16) through a first circulating pump (8).
6. The waste gas absorbing and purifying device for a sewage station according to claim 1, wherein: the biological treatment device (2) comprises a second packing layer (27) arranged in the middle, a spraying pipeline (26) with a spray head and a demisting silk screen (25) are sequentially arranged on the upper portion of the second packing layer (27), an outlet of the biological treatment device (2) is arranged on the upper portion of the demisting silk screen (25), an inlet of the biological treatment device (2) is arranged on the lower portion of the second packing layer (27), a circulating water outlet is arranged on the lower portion of the inlet of the biological treatment device (2), and the circulating water outlet is connected with the spraying pipeline (26) through a second circulating pump (9).
7. The waste gas absorbing and purifying device for a sewage station according to claim 1, wherein: the device also comprises a dosing device (5), and the dosing device (5) is respectively communicated with the lower parts of the biological treatment device (2) and the water washing device (1) through pipelines.
8. The waste gas absorbing and purifying device for a sewage station according to claim 4, wherein: the adsorption device (3) comprises an adsorption packing layer (21) arranged in the middle, an outlet of the adsorption device (3) is arranged at the top of the adsorption packing layer (21), and an inlet of the adsorption device (3) is arranged at the lower part of the adsorption packing layer (21).
9. The waste gas absorbing and purifying device for a sewage station according to claim 4, wherein: the bottom of the biological treatment device (2) is connected with an external drainage tank (6) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153195.8U CN219111308U (en) | 2023-01-30 | 2023-01-30 | Waste gas absorption and purification device for sewage station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153195.8U CN219111308U (en) | 2023-01-30 | 2023-01-30 | Waste gas absorption and purification device for sewage station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219111308U true CN219111308U (en) | 2023-06-02 |
Family
ID=86523473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320153195.8U Active CN219111308U (en) | 2023-01-30 | 2023-01-30 | Waste gas absorption and purification device for sewage station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219111308U (en) |
-
2023
- 2023-01-30 CN CN202320153195.8U patent/CN219111308U/en active Active
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