CN219848291U - Sewage treatment self-refluxing precipitation separation device - Google Patents
Sewage treatment self-refluxing precipitation separation device Download PDFInfo
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- CN219848291U CN219848291U CN202321042311.5U CN202321042311U CN219848291U CN 219848291 U CN219848291 U CN 219848291U CN 202321042311 U CN202321042311 U CN 202321042311U CN 219848291 U CN219848291 U CN 219848291U
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- tank
- pipe
- aeration
- pipe fitting
- pump
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- 239000010865 sewage Substances 0.000 title claims abstract description 46
- 238000000926 separation method Methods 0.000 title claims abstract description 15
- 238000010992 reflux Methods 0.000 title claims abstract description 14
- 238000001556 precipitation Methods 0.000 title claims description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 81
- 238000005273 aeration Methods 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000002156 mixing Methods 0.000 claims abstract description 34
- 238000005086 pumping Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000003814 drug Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 6
- 229940079593 drug Drugs 0.000 claims 4
- 239000010802 sludge Substances 0.000 abstract description 15
- 230000009471 action Effects 0.000 abstract description 5
- 239000013049 sediment Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model provides a sewage treatment self-refluxing sedimentation separation device, which comprises an aeration tank and a mixing tank, wherein the mixing tank is arranged on one side of the aeration tank and is communicated with the aeration tank through a pumping and draining piece, the sedimentation tank is arranged on one side of the aeration tank and is communicated with the aeration pipe through a water pushing pump pipe, a mud discharging pipe is arranged at the bottom end of the sedimentation tank, the water pushing pump pipe comprises a first water pushing pipe fitting and a second water pushing pipe fitting, and the first water pushing pipe fitting and the second water pushing pipe fitting are respectively arranged at two opposite angles of the sedimentation tank and are staggered. The utility model is different from the traditional sedimentation separation device in that two water pushing pipe fittings are respectively arranged at two sides of the sedimentation tank, and two water flows pumped into the sedimentation tank are guided by the inner wall of the sedimentation tank to push the water accumulated in the sedimentation tank to rotate in a rotating way, so that sediment in sewage can sink to the center of the bottom of the sedimentation tank under the action of centrifugal force, thereby enhancing the extraction effect of the sludge discharge pipe and improving the sewage treatment efficiency.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a self-refluxing sedimentation separation device for sewage treatment.
Background
The process of purifying sewage to meet the water quality requirement of being discharged into a certain water body or reused is called sewage treatment. In sewage treatment, a sedimentation tank is generally used for separating particles in a water body from the water body under the action of gravity, and a flocculating agent can be added in the process to accelerate the process.
A from backward flow sediment diverging device for sewage treatment among the prior art is mostly sedimentation tank body, the bottom of the pool, can mat formation mud pipe way, and mud pipe way is connected with the pump, can deposit the heavy and superficial thing of bottom of the pool and take out. Because the sinkers in the sewage are uniformly dispersed in the sewage, when the sludge is much, the sinkers sink in all areas dispersed at the bottom of the tank body, and the sludge discharge pipeline is used for only extracting the sludge at a local position, so that when the sludge is discharged, a certain amount of sludge remains, and secondary extraction is needed. Therefore, the utility model provides a sewage treatment self-refluxing precipitation separation device to solve the problems in the prior art.
Disclosure of Invention
Aiming at the problems, the utility model provides a self-refluxing sedimentation separation device for sewage treatment, which is used for solving the defects that the existing self-refluxing sedimentation separation device is used for separating sludge at the bottom of a pond through a sludge pumping pipeline, and the sludge is difficult to comprehensively and effectively discharge by a single sludge pumping pipeline due to over-dispersion of sludge sedimentation.
In order to achieve the purpose of the utility model, the utility model is realized by the following technical scheme: the utility model provides a sewage treatment is from backward flow precipitation separator, includes the aeration tank, and the aeration pipe that is used for carrying out aeration to sewage is laid to the aeration tank bottom of the pool, still includes:
the mixing tank is arranged at one side of the aeration tank and is communicated with the aeration tank through a pumping and exhausting piece, and a stirring piece for stirring sewage is arranged in the mixing tank;
the sedimentation tank is arranged at one side of the aeration tank and is communicated with the aeration pipe through a water pushing pump pipe, and a mud discharging pipe is arranged at the bottom end of the sedimentation tank;
the water pushing pump pipe comprises a first water pushing pipe fitting and a second water pushing pipe fitting, the first water pushing pipe fitting and the second water pushing pipe fitting are respectively arranged at two opposite angles of the sedimentation tank in a horizontal mode, and the output ends of the first water pushing pipe fitting and the second water pushing pipe fitting are staggered.
The further improvement is that: the first water pushing pipe comprises a first row of bins mounted on one side of the sedimentation tank, the first row of bins are arranged at corners of the sedimentation tank, which are close to one side of the aeration tank, one end of each first row of bins is communicated with the sedimentation tank, the other end of each first row of bins is communicated with a first pump output end mounted on one side of the aeration tank through a second pipe, and the first pump output end is communicated with the aeration tank through a first pipe.
The further improvement is that: the second water pushing pipe comprises a second row of bins mounted on the other side of the sedimentation tank, the second row of bins are arranged at corners of one side, far away from the aeration tank, of the sedimentation tank, one end of each second row of bins is communicated with the sedimentation tank, the other end of each second row of bins is communicated with the output end of a second pump mounted on one side of the aeration tank through a third pipe, and the input end of the second pump is communicated with the aeration tank through a fourth pipe.
The further improvement is that: one end of the first pipe fitting and the fourth pipe fitting, which are positioned in the aeration tank, extend to the bottom of the mixing tank.
The further improvement is that: the pumping and exhausting piece comprises a lifting pump fixed at the upper end of the mixing tank, the input end of the lifting pump is connected with a pumping pipe, the pumping pipe extends to the bottom of the mixing tank, the output end of the lifting pump is connected with a drain pipe, and the drain pipe extends into the aeration tank.
The further improvement is that: the mixing tank upper end is equipped with the end cover that is used for fixing the stirring piece, has seted up waste liquid mouth and injection mouth on the end cover, waste liquid mouth and injection mouth all communicate with the mixing tank, are connected with the pipeline of giving medicine to poor free of charge on the injection mouth.
The further improvement is that: the aeration tank is equipped with the backup pad with the junction of first pump machine and second pump machine, and the backup pad is arranged in the lower terminal surface of first pump machine and second pump machine and with aeration tank lateral wall fixed connection, and the junction of terminal surface and aeration tank lateral wall is equipped with the triangular ribbed plate under the backup pad.
The beneficial effects of the utility model are as follows: the two sides of the sedimentation tank are respectively provided with a water pushing pipe fitting, and as the two water pushing pipe fittings are staggered, two water flows pumped into the sedimentation tank can be guided by the inner wall of the sedimentation tank to push water accumulated in the sedimentation tank to rotate in a rotary way, sediment in sewage can be concentrated and collected at the center of the bottom of the sedimentation tank under the action of centrifugal force, so that the pumping effect of the sludge discharging pipe is enhanced, and the sewage treatment efficiency is improved.
Drawings
Fig. 1 is a structural diagram of the present utility model.
FIG. 2 is a block diagram of a sedimentation tank of the present utility model.
FIG. 3 is a structural view of the sludge discharge pipe of the present utility model.
Wherein: 1. an aeration tank; 2. a mixing tank; 3. a sedimentation tank; 4. an aeration pipe; 5. a pumping and exhausting piece; 6. a stirring member; 7. a medicine injection port; 8. a waste liquid port; 9. a first pump; 10. a first pipe fitting; 11. a second pipe fitting; 12. a first row of bins; 13. a third pipe fitting; 14. a fourth pipe fitting; 15. a second row of bins; 16. a second pump; 17. a mud pipe; 18. a support plate; 19. triangular rib plates.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
According to fig. 1, 2 and 3, this embodiment provides a sewage treatment self-refluxing precipitation separation device, which comprises an aeration tank 1, wherein an aeration pipe 4 for aerating sewage is paved at the bottom of the aeration tank 1, and the device further comprises:
the mixing tank 2 is arranged at one side of the aeration tank 1 and is communicated with the aeration tank 1 through a pumping and exhausting piece 5, and a stirring piece 6 for stirring sewage is arranged in the mixing tank 2; the sewage is put into the mixing tank 2, mixed with chemical agents such as flocculating agent, and then injected into the aeration tank 1 through the pumping and discharging piece 5, and an aeration pipe 4 positioned in the aeration tank 1 is connected with a booster pump, the booster pump discharges high-pressure air into the aeration pipe 4, the air is discharged from air holes formed on a pipe body, a large amount of micro-bubbles are formed in the water body, and oxygen is dissolved into water, so that the concentration of dissolved oxygen is improved, and the purposes of removing iron and manganese or promoting aerobic microorganisms to degrade organic matters are achieved.
The sedimentation tank 3 is arranged at one side of the aeration tank 1 and is communicated with the aeration pipe 4 through a water pushing pump pipe, and a mud discharging pipe 17 is arranged at the bottom end of the sedimentation tank 3; the sewage after chemical reaction and aeration treatment is discharged and injected into the sedimentation tank 3 through a water pushing pump pipe for sedimentation, and a mud discharging pipe 17 arranged at the lower end of the sedimentation tank 3 is used for pumping out mud deposited at the bottom of the tank. It should be noted that the bottom of the sedimentation tank 3 is a conical bin body, the upper part is wide and the lower part is narrow, so as to facilitate the sediment deposition, and a mud pump is connected with a mud discharge pipe 17 arranged at the bottom of the sedimentation tank 3.
Specifically, the water pushing pump pipe comprises a first water pushing pipe fitting and a second water pushing pipe fitting, the first water pushing pipe fitting and the second water pushing pipe fitting are respectively installed at two opposite angles of the sedimentation tank 3 and are horizontally arranged, and the output ends of the first water pushing pipe fitting and the second water pushing pipe fitting are staggered. The water pushing pump pipe plays a role in pumping water, and the sewage in the aeration tank 1 is pumped into the sedimentation tank 3 for sedimentation.
The different is that the water pushing pump pipe is composed of two water pushing pipe fittings, the two water pushing pipe fittings can be divided into two water flows from two directions, sewage in the aeration tank 1 is injected into the sedimentation tank 3, when the sewage is injected, the two water flows are closely arranged on the side wall of the sedimentation tank 3, the water flows can be stirred unidirectionally along the inner side wall of the sedimentation tank 3, water in the sedimentation tank 3 forms vortex, and floating matters in the sewage are converged at the center of the sedimentation tank 3 under the action of centrifugal force to be deposited.
More specifically, the first water pushing pipe comprises a first row of bins 12 arranged on one side of the sedimentation tank 3, the first row of bins 12 are arranged at the corners of one side, close to the aeration tank 1, of the sedimentation tank 3, one end of each first row of bins 12 is communicated with the sedimentation tank 3, the other end of each first row of bins 12 is communicated with the output end of a first pump 9 arranged on one side of the aeration tank 1 through a second pipe 11, and the output end of the first pump 9 is communicated with the aeration tank 1 through a first pipe 10. The first pump 9 injects the sewage aerated in the aeration tank 1 into the sedimentation tank 3 through the first row of bins 12 through the first pipe fitting 10 and the second pipe fitting 11. When the water flow enters the sedimentation tank 3 through the first row of bins 12, the water flow rotates and flows along the inner side wall of the sedimentation tank 3 under the guide of the inner side wall of the sedimentation tank 3.
The second water pushing pipe comprises a second row of bins 15 arranged on the other side of the sedimentation tank 3, the second row of bins 15 are arranged at the corners of one side, far away from the aeration tank 1, of the sedimentation tank 3, one end of each second row of bins 15 is communicated with the sedimentation tank 3, the other end of each second row of bins 15 is communicated with the output end of a second pump 16 arranged on one side of the aeration tank 1 through a third pipe fitting 13, and the input end of the second pump 16 is communicated with the aeration tank 1 through a fourth pipe fitting 14. The second pump 16 injects the sewage aerated in the aeration tank 1 into the sedimentation tank 3 through the first row of bins 12 through the third pipe fitting 13 and the fourth pipe fitting 14. The other water flow entering the sedimentation tank 3 from the second row of bins 15 can flow along the inner side wall of the sedimentation tank 3 in a rotary way under the guide of the inner side wall of the sedimentation tank 3, the flowing directions of the two water flows are consistent, the water flow in the sedimentation tank 3 can be driven to flow back to form a vortex, sediment in sewage is converged at the center of the bottom of the sedimentation tank 3 under the action of centrifugal force, so that the sludge discharge pipe 17 connected to the bottom of the sedimentation tank 3 can discharge sludge rapidly, and the sewage treatment efficiency is improved.
It should be noted that the first pipe 10 and the fourth pipe 14 are located at one end of the aeration tank 1 to extend to the bottom of the mixing tank 2. So as to avoid the residual sewage in the aeration tank 1 when water is pumped.
More specifically, the pumping and exhausting piece 5 comprises a lifting pump fixed at the upper end of the mixing tank 2, the input end of the lifting pump is connected with a pumping pipe, the pumping pipe extends to the bottom of the mixing tank 2, the output end of the lifting pump is connected with a drain pipe, and the drain pipe extends into the aeration tank 1. The lift pump pumps the reacted sewage in the mixing tank 2 into the aeration tank 1 through the water pumping pipe and the water discharging pipe. The water discharge pipe is positioned at the port in the mixing tank 2 and is positioned at the deepest part of the tank body of the mixing tank 2, so as to avoid sewage residue in the mixing tank 2 during pumping and discharging.
More specifically, the upper end of the mixing tank 2 is provided with an end cover for fixing the stirring piece 6, the end cover is provided with a waste liquid port 8 and a medicine injection port 7, the waste liquid port 8 and the medicine injection port 7 are communicated with the mixing tank 2, and the medicine injection port 7 is connected with a medicine application pipeline; the sewage is put into the mixing tank 2 through the waste liquid port 8, the chemical agent is injected into the mixing tank 2 through the chemical injection port 7, and the design of the end cover can prevent sewage from splashing. Wherein, stirring piece 6 includes driving motor and puddler, and driving motor installs the upper end at the end cover, and the puddler is established in mixing tank 2 and is connected with the lower terminal surface of end cover, and the driving motor output passes the end cover and is fixed with the puddler top for control puddler rotates, makes medicament and sewage flash mixed.
In the preferred embodiment, a supporting plate 18 is arranged at the joint of the aeration tank 1 and the first pump 9 and the second pump 16, the supporting plate 18 is arranged at the lower end surfaces of the first pump 9 and the second pump 16 and is fixedly connected with the outer side wall of the aeration tank 1, and a triangular rib plate 19 is arranged at the joint of the lower end surface of the supporting plate 18 and the outer side wall of the aeration tank 1. The supporting plate 18 is used for supporting the first pump 9 and the second pump 16 on the first water pushing pipe and the second water pushing pipe, and as the first pump 9 and the second pump 16 can generate great vibration during operation, triangular rib plates 19 are required to be arranged at the connection position of the aeration tank 1 and the supporting plate 18 to strengthen the structural strength of the supporting plate 18.
This sewage treatment is from backward flow precipitation separator, it is on traditional precipitation separator's basis, respectively set up a push away water pipe fitting in sedimentation tank 3 both sides, two push away water pipe fittings all with aeration tank 1 intercommunication, it can be with the sewage after the aeration reaction, divide into two rivers and take out notes to sedimentation tank 3 in, because two push away water pipe fitting stagger the setting, two rivers in the suction sedimentation tank 3 can promote ponding in the sedimentation tank 3 and rotate to a direction round under the guide of sedimentation tank 3 inner wall, make rivers form the vortex, the deposit in the sewage can concentrate under the effect of centrifugal force, sink to the center department of sedimentation tank 3 bottom, improve the extraction effect and the sewage treatment efficiency of mud pipe 17.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a sewage treatment is from backward flow precipitation separator, includes aeration tank (1), aeration tank (1) bottom of the pool is mated formation has aeration pipe (4) that are used for carrying out the aeration to sewage, its characterized in that still includes:
the mixing tank (2), the mixing tank (2) is arranged at one side of the aeration tank (1) and is communicated with the aeration tank (1) through a pumping and exhausting piece (5), and a stirring piece (6) for stirring sewage is arranged in the mixing tank (2);
the sedimentation tank (3), the sedimentation tank (3) is arranged at one side of the aeration tank (1) and is communicated with the aeration pipe (4) through a water pushing pump pipe, and a mud discharging pipe (17) is arranged at the bottom end of the sedimentation tank (3);
the water pushing pump pipe comprises a first water pushing pipe fitting and a second water pushing pipe fitting, the first water pushing pipe fitting and the second water pushing pipe fitting are respectively arranged at two opposite angles of the sedimentation tank (3) in a horizontal mode, and the output ends of the first water pushing pipe fitting and the second water pushing pipe fitting are staggered.
2. The wastewater treatment self-refluxing precipitation separation device as claimed in claim 1, wherein: the first water pushing pipe fitting comprises a first row of bins (12) arranged on one side of the sedimentation tank (3), the first row of bins (12) are arranged at the corners of one side of the sedimentation tank (3) close to the aeration tank (1), one end of each first row of bins (12) is communicated with the sedimentation tank (3), the other end of each first row of bins (12) is communicated with the output end of a first pump (9) arranged on one side of the aeration tank (1) through a second pipe fitting (11), and the output end of the first pump (9) is communicated with the aeration tank (1) through a first pipe fitting (10).
3. A wastewater treatment self-refluxing sedimentation separation device as set forth in claim 2, wherein: the second water pushing pipe fitting is including installing second row storehouse (15) in sedimentation tank (3) opposite side, the corner of aeration tank (1) one side is kept away from in sedimentation tank (3) is arranged in second row storehouse (15), second row storehouse (15) one end and sedimentation tank (3) intercommunication, the second row storehouse (15) other end communicates with second pump (16) output of installing in aeration tank (1) one side through third pipe fitting (13), second pump (16) input communicates with aeration tank (1) through fourth pipe fitting (14).
4. A wastewater treatment self-refluxing precipitation separation device as claimed in claim 3, wherein: one end of the first pipe fitting (10) and the fourth pipe fitting (14) which are positioned in the aeration tank (1) extends to the bottom of the mixing tank (2).
5. The wastewater treatment self-refluxing precipitation separation device as claimed in claim 1, wherein: the pumping and exhausting piece (5) comprises a lifting pump fixed at the upper end of the mixing tank (2), the input end of the lifting pump is connected with a pumping pipe, the pumping pipe extends to the bottom of the mixing tank (2), the output end of the lifting pump is connected with a drain pipe, and the drain pipe extends into the aeration tank (1).
6. The wastewater treatment self-refluxing precipitation separation device as claimed in claim 1, wherein: the mixing tank is characterized in that an end cover for fixing the stirring piece (6) is arranged at the upper end of the mixing tank (2), a waste liquid port (8) and a drug injection port (7) are formed in the end cover, the waste liquid port (8) and the drug injection port (7) are communicated with the mixing tank (2), and a drug application pipeline is connected to the drug injection port (7).
7. A wastewater treatment self-refluxing precipitation separation device as claimed in claim 3, wherein: the aeration tank (1) is equipped with backup pad (18) with the junction of first pump machine (9) and second pump machine (16), lower terminal surface and with aeration tank (1) lateral wall fixed connection of first pump machine (9) and second pump machine (16) are arranged in to backup pad (18), the junction of terminal surface and aeration tank (1) lateral wall under backup pad (18) is equipped with triangular ribbed plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042311.5U CN219848291U (en) | 2023-05-05 | 2023-05-05 | Sewage treatment self-refluxing precipitation separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042311.5U CN219848291U (en) | 2023-05-05 | 2023-05-05 | Sewage treatment self-refluxing precipitation separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219848291U true CN219848291U (en) | 2023-10-20 |
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ID=88316802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321042311.5U Active CN219848291U (en) | 2023-05-05 | 2023-05-05 | Sewage treatment self-refluxing precipitation separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219848291U (en) |
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- 2023-05-05 CN CN202321042311.5U patent/CN219848291U/en active Active
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