CN114837287A - Bury formula sewage treatment plant suitable for rural single household type human settlements - Google Patents
Bury formula sewage treatment plant suitable for rural single household type human settlements Download PDFInfo
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- CN114837287A CN114837287A CN202210321808.4A CN202210321808A CN114837287A CN 114837287 A CN114837287 A CN 114837287A CN 202210321808 A CN202210321808 A CN 202210321808A CN 114837287 A CN114837287 A CN 114837287A
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- sewage
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- sewage treatment
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F11/00—Cesspools
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/26—Installations for stirring-up sewage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- 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
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a buried sewage treatment device suitable for rural single-family habitation, which comprises a box body, an adjusting tank, a self-priming sewage pump and an electronic liquid level meter, wherein the adjusting tank is arranged inside the box body and close to one end of a sewage inlet, the self-priming sewage pump is fixed at the top end of the adjusting tank, and the electronic liquid level meter is used for detecting the liquid level height of the adjusting tank and controlling the starting and stopping of the self-priming sewage pump. This sewage treatment plant is through setting up slide cartridge and standpipe, when making from inhaling the dredge pump start-up, the slide cartridge is sucked up under the negative pressure effect, the slide cartridge bottom stops near the solid-liquid boundary of sewage, can effectual suction solid-liquid mixture, make sewage misce bene, make things convenient for subsequent processing, inhale the hole through setting up the side, when drawing sewage from the slide cartridge side surface, reaction force makes the slide cartridge bottom have the trend of inhaling hole one side removal to the side, this removal trend is the same with the moment of torsion direction that the oblique leaf provided, the combined action, make commentaries on classics board and slide cartridge slow rotation, make cutting blade coverage wider.
Description
Technical Field
The invention belongs to the technical field of buried sewage treatment, and particularly relates to a buried sewage treatment device suitable for single-family living in rural areas.
Background
The buried sewage treatment equipment is a modularized high-efficiency sewage biological treatment equipment, is a sewage biological treatment system taking a biological membrane as a purification main body, and fully exerts the characteristics of large biological density, strong pollution resistance, low power consumption, stable operation and running and convenient maintenance of the biological membrane reactors such as an anaerobic biological filter, a contact oxidation bed and the like.
The existing underground sewage treatment equipment is mostly used for treating large-scale sewage and is not suitable for single-family living in rural areas, when the single-family type sewage treatment equipment is used, due to the fact that the sewage amount is small, sewage is accumulated slowly, after the liquid level in a storage pool reaches the starting height, bottom sediment is condensed into blocks, the sediment cannot be completely sucked into a next-stage treatment chamber by a sewage pump, solid and liquid of the sewage are mixed unevenly, and the subsequent anaerobic treatment cannot be carried out thoroughly.
Disclosure of Invention
The invention aims to solve the problems and provide the buried sewage treatment device which is simple in structure and reasonable in design and is suitable for single-family living in rural areas.
The invention realizes the purpose through the following technical scheme:
a buried sewage treatment device suitable for rural single-family habitats comprises a box body, an adjusting tank, a self-suction sewage pump and an electronic liquid level controller, wherein the adjusting tank is arranged inside the box body and is close to one end of a sewage inlet;
the sewage suction channel sequentially comprises a cylindrical block communicated with the suction end of the self-suction sewage pump, a convex pipe communicated with the cylindrical block and connected with the cylindrical block in a sealing and rotating mode, a rotating plate coaxially fixed at the bottom end of the convex pipe and communicated with each other, a vertical pipe eccentrically arranged on the surface of the bottom end of the rotating plate and a sliding cylinder sliding on the surface of the bottom end of the vertical pipe from top to bottom, wherein inclined blades are arranged on the inner wall of the convex pipe and used for driving the convex pipe and the rotating plate to rotate slowly when sewage circulates.
As a further optimization scheme of the invention, the cylindrical block is connected to the inner wall of the regulating tank through a connecting rod, a circular groove is formed in the cylindrical block, the circular groove is rotatably connected with the convex pipe through a sealing bearing, and the top end of the circular groove is communicated with the suction end of the self-suction sewage pump through a connecting pipe.
As a further optimization scheme of the invention, the inner part of the vertical pipe close to the center is provided with a check valve.
As a further optimization scheme of the invention, the surface of the vertical pipe in sliding connection with the sliding barrel is provided with a sealing gasket.
As a further optimization scheme of the invention, a rotating rod is rotatably connected to the center of the bottom end surface of the sliding cylinder, small fan blades are arranged on the side surface of the top end of the rotating rod, and cutting blades are arranged on the side surface of the bottom end of the rotating rod.
As a further optimization scheme of the invention, the horizontal inclination angle of the small fan blades is 40-50 degrees, and the horizontal inclination angle of the cutting blades is 5-10 degrees.
As a further optimization scheme of the invention, the inner bottom end of the vertical pipe is also provided with a limiting seat for limiting the sliding stroke of the vertical pipe and protecting the small fan blades.
As a further optimization scheme of the invention, the bottom end surface of the sliding cylinder is provided with a dirt absorbing hole, and the sliding cylinder is provided with a side absorbing hole along the tangential direction of the rotation of the rotating plate, so as to improve the rotation capacity of the sliding cylinder.
As a further optimization scheme of the invention, the rotating plate is internally provided with a balancing weight for balancing the rotating gravity center of the rotating plate and reducing the abrasion.
The invention has the beneficial effects that:
1) according to the invention, the sliding cylinder and the vertical pipe are arranged, so that when the self-priming sewage pump is started, the sliding cylinder is sucked up under the action of negative pressure, the bottom end of the sliding cylinder stays near a solid-liquid boundary of sewage, a solid-liquid mixture can be effectively sucked, the sewage is uniformly mixed, and the subsequent treatment is convenient;
2) according to the invention, the small fan blades and the cutting blades are arranged to rotate under the driving of water flow, the cutting blades are used for cutting off the deposited lumps, the absorption is convenient, the sewage flow rate near the small fan blades is high, and the rotation power of the cutting blades is improved;
3) according to the invention, the side suction holes are arranged, so that the bottom end of the sliding cylinder has the trend of moving to one side of the side suction holes by the reaction force while sewage is sucked from the side surface of the sliding cylinder, the moving trend is the same as the direction of torque provided by the inclined blades, and the rotating plate and the sliding cylinder slowly rotate under the combined action, so that the coverage range of the cutting blades is wider.
4) According to the invention, the cylindrical storage cylinder is arranged, and the bottom end of the storage cylinder is contracted towards the center, so that the area of the bottom can be reduced, and the cutting blade can conveniently break up solid agglomerates.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the internal structure of the present invention;
FIG. 3 is a schematic representation of the operation of the present invention;
FIG. 4 is a top view of the flap structure of the present invention;
FIG. 5 is an enlarged view of the portion A of FIG. 2 in accordance with the present invention;
FIG. 6 is an enlarged view of the portion B of FIG. 2 in accordance with the present invention;
in the figure: 1. a box body; 2. a regulating tank; 3. a storage cylinder; 4. a sewage inlet; 5. a self-priming sewage pump; 6. a blow-off pipe; 7. a cylindrical block; 8. a circular groove; 9. sealing the bearing; 10. a convex pipe; 11. rotating the plate; 12. oblique leaves; 13. a vertical tube; 14. a check valve; 15. a gasket; 16. a slide cylinder; 17. a limiting seat; 18. a rotating rod; 19. a small fan blade; 20. cutting leaves; 21. a dirt suction hole; 22. an electronic liquid level controller; 23. a side suction hole; 24. and a balancing weight.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in figures 1-6, a buried sewage treatment device suitable for rural single-family habitation, comprising a box body 1, an adjusting tank 2 arranged inside the box body 1 and close to one end of a sewage inlet 4, a self-priming sewage pump 5 fixed at the top end of the adjusting tank 2, and an electronic liquid level controller 22 for detecting the liquid level height of the adjusting tank 2 and controlling the start and stop of the self-priming sewage pump 5, wherein the electronic liquid level controller 22 comprises a PLC controller and an ultrasonic liquid level meter, the model of the ultrasonic liquid level meter is EA100, the bottom end of the adjusting tank 2 is provided with a cylindrical storage cylinder 3 with the bottom end shrinking to the center, a sewage suction channel is arranged from the bottom end inside the storage cylinder 3 to the self-priming sewage pump 5, the discharge end of the self-priming sewage pump 5 is also provided with a sewage discharge pipe 6 connected with the next treatment chamber of the box body 1, and the electronic liquid level controller 22 detects the liquid level height in the storage cylinder 3, when the preset height is reached, controlling a self-priming sewage pump 5 to start to pump the sewage in the regulating tank 2 into a next-stage treatment chamber;
the sewage suction channel sequentially comprises a cylindrical block 7 communicated with the suction end of the self-suction sewage pump 5, a convex pipe 10 communicated with the cylindrical block 7 and connected with the cylindrical block in a sealing and rotating mode, a rotating plate 11 coaxially fixed at the bottom end of the convex pipe 10 and communicated with each other, a vertical pipe 13 eccentrically arranged on the surface of the bottom end of the rotating plate 11, and a sliding cylinder 16 sliding on the surface of the bottom end of the vertical pipe 13 from top to bottom, wherein inclined blades 12 are arranged on the inner wall of the convex pipe 10 and used for driving the convex pipe 10 and the rotating plate 11 to rotate slowly when sewage circulates.
The bottom end of the sliding cylinder 16 absorbs solid-liquid mixture in sewage, sewage flow acts on the inclined blades 12, the rotating plate 11 can be rotated, the vertical pipe 13 eccentrically arranged at the bottom end of the rotating plate 11 can horizontally rotate in the storage cylinder 3, the absorption range is increased, and the problems of caking at the bottom of the storage cylinder 3 and poor flowability are solved.
The inner wall at equalizing basin 2 is connected through the connecting rod to cylinder piece 7, and circular slot 8 has been seted up to the inside of cylinder piece 7, and circular slot 8 is inside to be connected with protruding pipe 10 rotation through sealed bearing 9, and the top of circular slot 8 is linked together through connecting pipe and the suction end from inhaling dredge pump 5, makes protruding pipe 10 department can produce suction through setting up sealed bearing 9, changes board 11 simultaneously and can rotate.
The standpipe 13 is provided with a check valve 14 on the inside near the center to prevent backflow of the sewage.
The surface of the vertical pipe 13 in sliding connection with the sliding cylinder 16 is provided with a sealing gasket 15 to increase air tightness, when the self-priming sewage pump 5 is started, negative pressure is generated inside the sliding cylinder 16, the negative pressure drives the sliding cylinder 16 to move upwards, and the opening at the bottom end of the sliding cylinder 16 stays near a sewage solid-liquid boundary.
The bottom end surface center of the sliding cylinder 16 is rotatably connected with a rotating rod 18, the top end side surface of the rotating rod 18 is provided with a small fan blade 19, the bottom end side surface of the rotating rod 18 is provided with a cutting blade 20, the small fan blade 19 and the cutting blade 20 are driven by water flow to rotate, the cutting blade 20 is used for cutting off a sediment block and is convenient to absorb, the small fan blade 19 is used for improving the rotating power of the cutting blade 20, and sewage near the small fan blade 19 is high in flow rate and can be used for providing rotating force.
The horizontal inclination angle of the small fan blade 19 is 40-50 degrees, the horizontal inclination angle of the cutting blade 20 is 5-10 degrees, the small fan blade 19 is used for increasing the rotating power, the angle can be set to be about 45 degrees, the cutting blade 20 is mainly used for cutting off the sediment agglomeration, and the cutting blade has a longer rotating force arm, and the angle is set to be below 10 degrees so as to prevent the sediment agglomeration from being clamped.
The inner bottom end of the vertical pipe 13 is further provided with a limiting seat 17 for limiting the sliding stroke of the vertical pipe 13 and protecting the small fan blades 19.
The bottom end surface of the sliding barrel 16 is provided with a dirt sucking hole 21, and the sliding barrel 16 is provided with a side sucking hole 23 along the tangential direction of the rotation of the rotating plate 11 for improving the rotation capacity of the sliding barrel 16.
The inside of changeing board 11 still is provided with balancing weight 24 for balanced 11 rotatory centroids that change board, reducing wear makes 11 rotations of changeing board more balanced, prevents to abrade sealed bearing 9.
The implementation mode is specifically as follows: when the water level of the storage cylinder 3 is zero, the sliding cylinder 16 naturally falls down by self weight, the bottom of the rotating rod 18 is contacted with the upper surface of the bottom wall of the storage cylinder 3, domestic sewage enters the storage cylinder 3 through the sewage inlet 4, when the domestic sewage is accumulated to a set height, the electronic liquid level controller 22 detects that the liquid level reaches the starting height, the self-priming sewage pump 5 is controlled to start, the self-priming sewage pump 5 generates vacuum suction, the sliding cylinder 16 is buried in sediment at the moment, the sediment has low circulation, the sliding cylinder 16 is sucked up under the action of negative pressure, when the bottom end of the sliding cylinder 16 is separated from the sediment and reaches a boundary between the sediment and liquid, the sewage flows into the sliding cylinder 16, the negative pressure in the sliding cylinder 16 disappears, the sliding cylinder 16 stays at the solid-liquid boundary, the liquid and the solid are mixed and sucked together, meanwhile, the solid-liquid mixture pushes the cutting blades 20 and the small fan blades 19 to rotate, and the cutting blades 20 cut out solid lumps at the bottom, then sucking through a sewage sucking hole 21, breaking and scattering solid lumps after impacting small fan blades 19 completely, using a side sucking hole 23 for sucking liquid sewage, enabling a solid-liquid mixture to enter a rotating plate 11 through a vertical pipe 13, finally entering a self-sucking sewage pump 5 through a convex pipe 10, driving the convex pipe 10 and the rotating plate 11 to rotate slowly through an inclined blade 12 when passing through the convex pipe 10, enabling a sliding cylinder 16 to rotate horizontally in a storage cylinder 3, breaking and absorbing deposited lumps at each position, and simultaneously fully mixing with liquid sewage, setting the bottom end of the storage cylinder 3 to shrink towards the center, reducing the area of the bottom, facilitating a cutting blade 20 to break up the solid lumps, wherein the side sucking hole 23 enables the bottom end of the sliding cylinder 16 to have a trend of moving towards one side of the side sucking hole 23 by a reaction force while sucking the sewage from the side surface, the moving trend is the same as the torque direction provided by the inclined blade 12, and acting together to enable the rotating plate 11 and the sliding cylinder 16 to rotate slowly, making the cutting blade 20 more widely covered.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The utility model provides a bury formula sewage treatment plant suitable for rural single household type human settlements, includes box (1) to and set up equalizing basin (2) that are close to into dirty mouthful (4) one end inside box (1), its characterized in that: the device is characterized by further comprising a self-suction sewage pump (5) fixed at the top end of the regulating tank (2) and an electronic liquid level controller (22) for detecting the liquid level height of the regulating tank (2) and controlling the start and stop of the self-suction sewage pump (5), wherein the bottom end of the regulating tank (2) is provided with a cylindrical storage cylinder (3) with the bottom end contracting towards the center, a sewage suction channel is arranged from the bottom end inside the storage cylinder (3) to the self-suction sewage pump (5), and the discharge end of the self-suction sewage pump (5) is also provided with a sewage discharge pipe (6) connected with the next treatment chamber of the box body (1);
the sewage suction channel sequentially comprises a cylindrical block (7) communicated with a suction end of a self-suction sewage pump (5), a convex pipe (10) communicated with the cylindrical block (7) and connected in a sealing and rotating mode, a rotating plate (11) coaxially fixed at the bottom end of the convex pipe (10) and communicated with each other, a vertical pipe (13) eccentrically arranged on the surface of the bottom end of the rotating plate (11), and a sliding cylinder (16) sliding on the surface of the bottom end of the vertical pipe (13), wherein inclined blades (12) are arranged on the inner wall of the convex pipe (10) and used for driving the convex pipe (10) and the rotating plate (11) to rotate slowly when sewage circulates.
2. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: the cylinder block (7) is connected to the inner wall of the adjusting tank (2) through a connecting rod, a circular groove (8) is formed in the cylinder block (7), the inside of the circular groove (8) is rotatably connected with the convex pipe (10) through a sealing bearing (9), and the top end of the circular groove (8) is communicated with the suction end of the self-suction sewage pump (5) through a connecting pipe.
3. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: and a check valve (14) is arranged in the vertical pipe (13) close to the center.
4. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: and a sealing gasket (15) is arranged on the surface of the vertical pipe (13) in sliding connection with the sliding cylinder (16).
5. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: the center of the bottom end surface of the sliding cylinder (16) is rotatably connected with a rotating rod (18), small fan blades (19) are arranged on the side surface of the top end of the rotating rod (18), and cutting blades (20) are arranged on the side surface of the bottom end.
6. The buried sewage treatment device suitable for rural single-family human habitation according to claim 5, characterized in that: the horizontal inclination angle of the small fan blades (19) is 40-50 degrees, and the horizontal inclination angle of the cutting blades (20) is 5-10 degrees.
7. The buried sewage treatment device suitable for rural single-family human habitation according to claim 5, characterized in that: the inside bottom of standpipe (13) still is provided with spacing seat (17) for the slip stroke of restriction standpipe (13), protection small fan blade (19).
8. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: the bottom end surface of the sliding barrel (16) is provided with a dirt sucking hole (21), and the sliding barrel (16) is provided with a side sucking hole (23) along the tangential direction of the rotation of the rotating plate (11) for improving the rotation capacity of the sliding barrel (16).
9. The buried sewage treatment device suitable for rural single-family human habitation according to claim 1, characterized in that: the inside of commentaries on classics board (11) still is provided with balancing weight (24) for balanced commentaries on classics board (11) rotation center of gravity reduces wearing and tearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210321808.4A CN114837287B (en) | 2022-03-30 | 2022-03-30 | Bury formula sewage treatment plant suitable for rural single household type human settlements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210321808.4A CN114837287B (en) | 2022-03-30 | 2022-03-30 | Bury formula sewage treatment plant suitable for rural single household type human settlements |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114837287A true CN114837287A (en) | 2022-08-02 |
| CN114837287B CN114837287B (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210321808.4A Active CN114837287B (en) | 2022-03-30 | 2022-03-30 | Bury formula sewage treatment plant suitable for rural single household type human settlements |
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| CN (1) | CN114837287B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170155A (en) * | 2001-12-10 | 2003-06-17 | Kiyoyasu Yamakawa | Sewage treatment equipment |
| CN102257976A (en) * | 2011-06-14 | 2011-11-30 | 中国水产科学研究院渔业机械仪器研究所 | Clam seedling catching device |
| CN109098270A (en) * | 2018-09-20 | 2018-12-28 | 王凤兰 | One kind being used for municipal sewage draw-out device |
| CN209246658U (en) * | 2018-11-24 | 2019-08-13 | 福建三宝钢铁有限公司 | A kind of ring cold-smoothing material equipment |
| CN210065455U (en) * | 2019-04-12 | 2020-02-14 | 南方泵业智水（杭州）科技有限公司 | Intelligent sewage treatment system |
| CN210371332U (en) * | 2019-06-06 | 2020-04-21 | 河北天海泵业有限公司 | Sewage pump with telescopic water suction pipe |
| CN212151873U (en) * | 2020-03-18 | 2020-12-15 | 徐州科悦电子科技有限公司 | Agricultural sewage extraction processing apparatus |
-
2022
- 2022-03-30 CN CN202210321808.4A patent/CN114837287B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003170155A (en) * | 2001-12-10 | 2003-06-17 | Kiyoyasu Yamakawa | Sewage treatment equipment |
| CN102257976A (en) * | 2011-06-14 | 2011-11-30 | 中国水产科学研究院渔业机械仪器研究所 | Clam seedling catching device |
| CN109098270A (en) * | 2018-09-20 | 2018-12-28 | 王凤兰 | One kind being used for municipal sewage draw-out device |
| CN209246658U (en) * | 2018-11-24 | 2019-08-13 | 福建三宝钢铁有限公司 | A kind of ring cold-smoothing material equipment |
| CN210065455U (en) * | 2019-04-12 | 2020-02-14 | 南方泵业智水（杭州）科技有限公司 | Intelligent sewage treatment system |
| CN210371332U (en) * | 2019-06-06 | 2020-04-21 | 河北天海泵业有限公司 | Sewage pump with telescopic water suction pipe |
| CN212151873U (en) * | 2020-03-18 | 2020-12-15 | 徐州科悦电子科技有限公司 | Agricultural sewage extraction processing apparatus |
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| CN114837287B (en) | 2023-04-07 |
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