CN220485508U - High concentration acetonitrile effluent treatment plant - Google Patents
High concentration acetonitrile effluent treatment plant Download PDFInfo
- Publication number
- CN220485508U CN220485508U CN202322258083.1U CN202322258083U CN220485508U CN 220485508 U CN220485508 U CN 220485508U CN 202322258083 U CN202322258083 U CN 202322258083U CN 220485508 U CN220485508 U CN 220485508U
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- CN
- China
- Prior art keywords
- tank
- pipeline
- flocculation sedimentation
- sedimentation tank
- acetonitrile
- 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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- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 title claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005189 flocculation Methods 0.000 claims abstract description 45
- 230000016615 flocculation Effects 0.000 claims abstract description 45
- 239000010865 sewage Substances 0.000 claims abstract description 42
- 238000004062 sedimentation Methods 0.000 claims abstract description 39
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 13
- 238000010979 pH adjustment Methods 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 abstract description 11
- 238000001556 precipitation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to the technical field of acetonitrile wastewater treatment, in particular to a high-concentration acetonitrile wastewater treatment device. The high concentration acetonitrile effluent treatment plant, including the pH adjustment tank, the pH adjustment tank passes through Fenton's retort and links to each other with the neutralization tank, the neutralization tank links to each other with the flocculation sedimentation tank through blowing off the aeration tank, the inside temporary water reservoir that is equipped with of flocculation sedimentation tank, the top of temporary water reservoir is equipped with the toper water knockout drum, the top of toper water knockout drum is equipped with the spray dish, blowing off the aeration tank and spray the dish and link to each other, the flocculation sedimentation tank is inside to be equipped with the filter, the filter passes through the pipeline and links to each other with the jar that dispenses, the jar that dispenses links to each other with the flocculation sedimentation tank through the charge pump. This device is through spraying dish, toper water knockout drum, slow flow board and the cooperation of jar of making up a prescription and use, with sewage and medicament homogeneous mixing, later slowly get into in the flocculation precipitation pond, promoted flocculation precipitation efficiency greatly, promoted the treatment effect of waste water, avoided acetonitrile waste water inflow next device.
Description
Technical Field
The utility model relates to the technical field of acetonitrile wastewater treatment, in particular to a high-concentration acetonitrile wastewater treatment device.
Background
After azeotropic distillation in an acrylonitrile device reactor, the obtained mixed gas of crude acrylonitrile and crude acetonitrile is dissolved and separated from acrylonitrile by using absorption water as a solvent in an absorption tower, and then is fractionated out by an acetonitrile fractionating tower. No acetonitrile waste water is normally discharged to the sewage treatment station, and only part of the waste water needs to be discharged and contains acetonitrile under the condition of starting and stopping or accident.
However, in normal production, a start-stop or accident is unavoidable. Therefore, there is a need for a high concentration acetonitrile wastewater treatment apparatus that avoids the flow of acetonitrile wastewater into the next apparatus, and particularly when treating already wastewater, it is desirable to remove as much as possible the impurity precipitate in the wastewater after the completion of the reaction, avoiding the influence on the subsequent apparatus.
Disclosure of Invention
According to the defects in the prior art, the utility model aims to provide the high-concentration acetonitrile wastewater treatment device, and the large-scale impurities in the wastewater before the reaction are removed through the arrangement of the V-shaped filter screen, so that the Fenton reaction treatment efficiency is improved; through the cooperation of spray tray, toper water knockout drum, slow flow board and jar of making up a prescription and use, with sewage and medicament homogeneous mixing, later slowly get into in the flocculation precipitation pond, promoted flocculation precipitation efficiency greatly, promoted the treatment effect of waste water, avoided acetonitrile waste water to flow into next device.
The utility model is realized by adopting the following technical scheme:
the high concentration acetonitrile effluent treatment plant, including the pH adjustment tank, the pH adjustment tank passes through Fenton's retort and links to each other with the neutralization tank, the neutralization tank links to each other with the flocculation sedimentation tank through blowing off the aeration tank, the inside temporary water reservoir that is equipped with of flocculation sedimentation tank, the top of temporary water reservoir is equipped with the toper water knockout drum, the top of toper water knockout drum is equipped with the spray dish, blowing off the aeration tank and spray the dish and link to each other, the flocculation sedimentation tank is inside to be equipped with the filter, the filter passes through the pipeline and links to each other with the jar that dispenses, the jar that dispenses links to each other with the flocculation sedimentation tank through the charge pump.
The spray tray is positioned right above the conical water separator, the conical water separator is positioned right above the temporary water reservoir, the water reservoir is barrel-shaped, but the connecting position of the vertical wall and the slow flow plate is lower than the height of other vertical walls, so that sewage can flow into the flocculation sedimentation tank through the slow flow plate conveniently.
The pH adjusting tank is connected with a sewage inlet pipeline, the sewage inlet pipeline is connected with a sulfuric acid adding pipeline, and a stirring device is arranged inside the pH adjusting tank.
The Fenton reaction tank is internally provided with a V-shaped filter screen, a reactant adding pipeline is arranged on the Fenton reaction tank, and a spray plate is arranged in the neutralization tank.
The Fenton reaction tank is connected with a spraying plate through a pipeline, and spraying holes are formed in the spraying plate and face to the bottom of the Fenton reaction tank.
An aeration plate is arranged in the stripping aeration tank, and an air blower is connected to the aeration plate.
A slow flow plate is arranged between the vertical wall of the flocculation sedimentation tank and the temporary water storage device, a medicine outlet and adding pump pipeline is arranged between the medicine adding pump and the flocculation sedimentation tank, and the joint of the medicine outlet and adding pump pipeline and the flocculation sedimentation tank is positioned above the temporary water storage device.
The vertical wall of the flocculation sedimentation tank is provided with a sewage outlet pipeline, and a packing auger is arranged below the sewage outlet pipeline.
The auger is used for discharging the flocculated material from the flocculation sedimentation tank.
The slow flow plate is positioned at one side far away from the sewage outlet pipeline.
The working principle of the utility model is as follows:
the sewage enters a pH adjusting tank through a sewage inlet pipeline, sulfuric acid is added into the sewage inlet pipeline through a sulfuric acid adding pipeline, a stirring device is started, after pH adjustment is finished, the sewage enters a Fenton reaction tank after being filtered through a V-shaped filter screen, after reaction is finished, the sewage enters a stripping aeration tank after being neutralized through a neutralization tank, a blower is started, and an aeration plate starts to work; after aeration is completed, sewage is sprayed onto the conical water separator through the spray plate, then enters the temporary water reservoir, meanwhile, the liquid medicine in the dispensing tank enters the temporary water reservoir through the medicine outlet pump pipeline, then is mixed with the sewage in the temporary water reservoir, after mixing is completed, enters the flocculation sedimentation tank through the slow flow plate for sedimentation, the sewage is discharged through the sewage outlet pipeline, and the flocculation sedimentation enters the next device through the auger. Wherein, spray the dish and be located the toper water knockout drum directly over, the toper water knockout drum is located temporary water receiver directly over, and the water receiver is the bucket, but its standing wall is less than the height of other standing walls with the position that the slow flow board links to each other, in the flocculation and precipitation pond is flowed into through the slow flow board to the sewage of being convenient for. The auger is used for discharging the flocculated material from the flocculation sedimentation tank.
Compared with the prior art, the utility model has the beneficial effects that:
by adopting the high-concentration acetonitrile wastewater treatment device, the large-scale impurities in the wastewater before the reaction are removed through the arrangement of the V-shaped filter screen, so that the Fenton reaction treatment efficiency is improved; through the cooperation of spray tray, toper water knockout drum, slow flow board and jar of making up a prescription and use, with sewage and medicament homogeneous mixing, later slowly get into in the flocculation precipitation pond, promoted flocculation precipitation efficiency greatly, promoted the treatment effect of waste water, avoided acetonitrile waste water to flow into next device.
Drawings
FIG. 1 is a schematic diagram of a high-concentration acetonitrile wastewater treatment device;
FIG. 2 is a top view of the flocculation precipitation tank of the present utility model;
in the figure: 1. a pH adjusting tank; 2. a Fenton reaction tank; 3. a neutralization tank; 4. blowing off an aeration tank; 5. a flocculation sedimentation tank; 6. a dispensing tank; 7. sewage enters a pipeline; 8. sulfuric acid adding pipeline; 9. a stirring device; 10. a V-shaped filter screen; 11. reactant is added into the pipeline; 12. a spray plate; 13. an aeration plate; 14. a blower; 15. a spray tray; 16. a conical water separator; 17. a temporary reservoir; 18. a slow flow plate; 19. an auger; 20. a filter; 21. a sewage outlet pipe; 22. a dosing pump; 23. and (5) discharging the medicine feeding pump pipeline.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects and technical solutions of the present utility model more apparent.
Example 1
As shown in FIG. 1, the high concentration acetonitrile effluent treatment plant, including pH adjusting tank 1, pH adjusting tank 1 links to each other with neutralization tank 3 through Fenton's reaction tank 2, neutralization tank 3 links to each other with flocculation sedimentation tank 5 through blow-off aeration tank 4, flocculation sedimentation tank 5 inside is equipped with temporary water reservoir 17, temporary water reservoir 17's top is equipped with toper water knockout drum 16, toper water knockout drum 16's top is equipped with spray dish 15, blow-off aeration tank 4 links to each other with spray dish 15, flocculation sedimentation tank 5 inside is equipped with filter 20, filter 20 links to each other with the jar 6 that dispenses through the pipeline, and jar 6 that dispenses links to each other with flocculation sedimentation tank 5 through charge pump 22. The spray tray 15 is positioned right above the conical water separator 16, the conical water separator 16 is positioned right above the temporary water reservoir 17, the temporary water reservoir 17 is barrel-shaped, but the vertical wall of the temporary water reservoir 17 is connected with the slow flow plate 18 at a position lower than the height of other vertical walls, so that sewage can flow into the flocculation sedimentation tank 5 through the slow flow plate 18. The pH adjusting tank 1 is connected with a sewage inlet pipeline 7, the sewage inlet pipeline 7 is connected with a sulfuric acid adding pipeline 8, and a stirring device 9 is arranged inside the pH adjusting tank 1. The Fenton reaction tank 2 is internally provided with a V-shaped filter screen 10, the Fenton reaction tank 2 is provided with a reactant adding pipeline 11, and the neutralization tank 3 is internally provided with a spray disk 12. The Fenton reaction tank 2 is connected with a spray plate 12 through a pipeline, and spray holes are formed in the spray plate 12 and face the bottom of the Fenton reaction tank 2. An aeration plate 13 is arranged in the stripping aeration tank, and an air blower 14 is connected to the aeration plate 13. A slow flow plate 18 is arranged between the vertical wall of the flocculation sedimentation tank 5 and the temporary water reservoir 17, a dosing pump pipeline 23 is arranged between the dosing pump 22 and the flocculation sedimentation tank 5, and the joint of the dosing pump pipeline 23 and the flocculation sedimentation tank 5 is positioned above the temporary water reservoir 17. A sewage outlet pipeline 21 is arranged on the vertical wall of the flocculation sedimentation tank 5, and a packing auger 19 is arranged below the sewage outlet pipeline 21. The slow flow plate 18 is located at a side remote from the sewage outlet conduit 21.
The high-concentration acetonitrile wastewater treatment device comprises the following steps in operation:
(1) The sewage enters the pH adjusting tank 1 through the sewage inlet pipeline 7, sulfuric acid is added into the sewage inlet pipeline 7 through the sulfuric acid adding pipeline 8, the stirring device 9 is started, after pH adjustment is finished, the sewage enters the Fenton reaction tank 2 after being filtered through the V-shaped filter screen 10, after the reaction is finished, the sewage enters the stripping aeration tank 4 after being neutralized through the neutralizing tank 3, the blower 14 is started, and the aeration plate 13 starts to work; (2) After aeration, sewage is sprayed onto the conical water separator 16 through the spray disc 15, then enters the temporary water reservoir 17, meanwhile, the liquid medicine in the dispensing tank 6 enters the temporary water reservoir 17 through the medicine outlet and adding pump pipeline 23, then is mixed with the sewage in the temporary water reservoir 17, after mixing, enters the flocculation sedimentation tank 5 through the slow flow plate 18 for sedimentation, the sewage is discharged through the sewage outlet pipeline 21, and the flocculation sedimentation enters the next device through the auger 19.
Claims (8)
1. The utility model provides a high concentration acetonitrile effluent treatment plant, a serial communication port, including pH adjustment tank (1), pH adjustment tank (1) link to each other with neutralization tank (3) through Fenton's retort (2), neutralization tank (3) link to each other with flocculation sedimentation tank (5) through blowing off aeration tank (4), flocculation sedimentation tank (5) inside is equipped with temporary water storage ware (17), the top of temporary water storage ware (17) is equipped with toper water knockout drum (16), the top of toper water knockout drum (16) is equipped with spray dish (15), blowing off aeration tank (4) link to each other with spray dish (15), flocculation sedimentation tank (5) inside is equipped with filter (20), filter (20) link to each other with dispensing tank (6) through the pipeline, dispensing tank (6) link to each other with flocculation sedimentation tank (5) through dosing pump (22).
2. The high-concentration acetonitrile wastewater treatment device according to claim 1, wherein the pH adjusting tank (1) is connected with a sewage inlet pipeline (7), the sewage inlet pipeline (7) is connected with a sulfuric acid adding pipeline (8), and a stirring device (9) is arranged inside the pH adjusting tank (1).
3. The high-concentration acetonitrile wastewater treatment device according to claim 1, wherein a V-shaped filter screen (10) is arranged inside the Fenton reaction tank (2), a reactant adding pipeline (11) is arranged on the Fenton reaction tank (2), and a spray plate (12) is arranged inside the neutralization tank (3).
4. A high-concentration acetonitrile wastewater treatment device according to claim 3, wherein the Fenton reaction tank (2) is connected with a spraying disc (12) through a pipeline, and spraying holes are formed in the spraying disc (12) and face the bottom of the Fenton reaction tank (2).
5. The high-concentration acetonitrile wastewater treatment device according to claim 1, wherein an aeration plate (13) is arranged in the stripping aeration tank (4), and a blower (14) is connected to the aeration plate (13).
6. The high-concentration acetonitrile wastewater treatment device according to claim 1, wherein a slow flow plate (18) is arranged between the standing wall of the flocculation sedimentation tank (5) and the temporary water reservoir (17), a dosing pump pipeline (23) is arranged between the dosing pump (22) and the flocculation sedimentation tank (5), and the joint of the dosing pump pipeline (23) and the flocculation sedimentation tank (5) is positioned above the temporary water reservoir (17).
7. The high-concentration acetonitrile wastewater treatment device according to claim 6, wherein a sewage outlet pipeline (21) is arranged on the vertical wall of the flocculation sedimentation tank (5), and a packing auger (19) is arranged below the sewage outlet pipeline (21).
8. The apparatus for treating high-concentration acetonitrile waste water according to claim 7, wherein the slow flow plate (18) is located at a side away from the sewage outlet pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322258083.1U CN220485508U (en) | 2023-08-22 | 2023-08-22 | High concentration acetonitrile effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322258083.1U CN220485508U (en) | 2023-08-22 | 2023-08-22 | High concentration acetonitrile effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220485508U true CN220485508U (en) | 2024-02-13 |
Family
ID=89838311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322258083.1U Active CN220485508U (en) | 2023-08-22 | 2023-08-22 | High concentration acetonitrile effluent treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220485508U (en) |
-
2023
- 2023-08-22 CN CN202322258083.1U patent/CN220485508U/en active Active
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| GR01 | Patent grant |