A sewage treatment device based on digital twin and its use method

Abstract

The present invention belongs to the technical field of sewage treatment, and in particular to a sewage treatment device based on digital twin and a method for using the same. Aiming at the problem that the existing defoaming operation cannot be carried out in time and quickly, and it is difficult to monitor the state of foam and sewage in an aeration tank at night, the following scheme is proposed, which includes an aeration tank, wherein the bottom inner wall of the aeration tank is provided with a plurality of aeration pipes for aeration, and the plurality of aeration pipes are connected with external oxygen manufacturing equipment through an oxygen supply pipe; a collecting box, wherein the collecting box is arranged in the aeration tank and is used to hold sewage and foam for later inspection, and the inner wall of the collecting box is coated with white paint. In the present invention, the state of sewage and foam can be checked at different positions at night, so that corresponding measures can be taken later to improve the efficiency of aeration. In addition, the defoamer solution in the drainage box is intermittently squeezed by the cooperation of a push rod and a special-shaped wheel, so that the defoamer solution breaks the bubbles floating on the water surface, thereby accelerating the elimination efficiency of the foam.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device based on digital twin and a method of using the same. Background Art

[0002] The digital twin system applied in sewage treatment plants can help monitor and manage the sewage treatment process. It builds a visual sewage treatment equipment management system based on a large amount of basic data such as map data, surveillance video data, sensor data, and various database data through multi-source heterogeneous data fusion, helping managers identify problems and make corresponding adjustments and improvements to improve sewage treatment efficiency.

[0003] Sewage treatment plants operate on a 24-hour basis, disinfecting, killing and destroying toxic sewage to turn it into purified water for reuse. That is, a large number of equipment in the sewage treatment plant operate 24 hours a day, and the aeration tank needs to be aerated 24 hours a day during the sewage dissolution and aeration process to prevent the activity of microorganisms from being reduced or a large number of them from dying.

[0004] During the aeration process, there is a large amount of foam in the aeration tank, and the foam of different colors shows the aeration status of the sewage in the aeration tank;

[0005] Colored foam: Colored foam often occurs when colored wastewater flows into the biochemical system. Usually, these colored wastewaters have a high concentration of organic matter. Under the action of aeration, they are prone to cause foam similar to that produced when the water is highly loaded. Since the water itself is colored, the naturally generated foam will also be colored;

[0006] White foam: There are many reasons for the generation of white foam, but it is mainly caused by excessive load, excessive aeration, detergent inflow, etc.

[0007] Gray-black foam: The quantity, generation process, accumulation, and fragility of the foam are the same as those of brown-yellow foam, but its color contains black components, and the accumulated products are also gray-black, indicating that the activated sludge is in anoxic state.

[0008] Brown-yellow foam: The amount of foam produced is small. It is produced in small amounts near the liquid surface around the aeration group, gradually dissipates in the radial direction, and begins to accumulate in the corners. The foam is brown-yellow in color. The activated sludge is in an aging state, and part of the activated sludge disintegrates due to aging.

[0009] However, there are some shortcomings in the 24-hour aeration process:

[0010] 1. When aeration is carried out 24 hours a day, it is difficult to monitor the status of foam and sewage in the aeration tank due to the low light intensity at night, and it is impossible to take corresponding measures according to the situation, which affects the sewage treatment task;

[0011] 2. During the aeration process, when gas enters the wastewater, foam may form. The presence of foam will hinder gas transmission, stirring and sedimentation. If the defoaming operation cannot be carried out in a timely and rapid manner, the efficiency of sewage treatment will be affected.

[0012] In response to the above problems, the present invention document proposes a sewage treatment equipment based on digital twin and a method of using the same. Summary of the invention

[0013] The purpose of the present invention is to solve the shortcomings of the existing inability to carry out defoaming operations in a timely and rapid manner and it is difficult to monitor the status of foam and sewage in the aeration tank at night, and to propose a sewage treatment equipment based on digital twins and a method of using the same.

[0014] In order to achieve the above object, the present invention adopts the following technical solutions:

[0015] A sewage treatment device based on digital twins, comprising an aeration tank, wherein the bottom inner wall of the aeration tank is provided with a plurality of aeration pipes for aeration, and the plurality of aeration pipes are connected to an external oxygen production device through an oxygen supply pipe;

[0016] A collection box, which is arranged in the aeration tank and is used to collect sewage and foam for later inspection. The inner wall of the collection box is painted with white paint;

[0017] A drainage tank, which is arranged above the aeration tank and is used to quickly eliminate foam in the aeration tank;

[0018] A driving structure is arranged on the top of the aeration tank and is used to drive the collecting box to collect sewage and foam at different positions;

[0019] A shooting structure, arranged above the collection box, for clearly shooting the sewage and foam in the collection box;

[0020] The defoaming structure is arranged in the drainage tank and is used to quickly eliminate the foam in the aeration tank.

[0021] In a possible design, the driving structure includes two first reciprocating screws rotatably connected to the top of the aeration tank through a connecting seat, and the two first reciprocating screws are connected by a transmission mechanism, a motor is fixed to the top of the aeration tank through a frame, the output shaft of the motor is fixedly connected to one end of one of the first reciprocating screws through a coupling, the outer walls of the two first reciprocating screws are threadedly sleeved with nut blocks, the bottoms of the two nut blocks are welded with the same moving frame, and both sides of the bottom of the moving frame are slidably connected to the top of the aeration tank through slide rails, a T-shaped sliding groove is provided in the moving frame, and the moving frame A second reciprocating screw is rotatably connected inside, and one end of the second reciprocating screw rotates and extends to the outside of the moving frame and is fixed with a first gear. A first rack meshing with the first gear is fixed on the top of the aeration tank, and a T-shaped sliding block threadedly connected to the second reciprocating screw is slidably connected in the T-shaped sliding groove; the two first reciprocating screws drive the moving frame to perform reciprocating linear motion, and the moving frame drives the second reciprocating screw and the first gear to move, and the first gear drives the second reciprocating screw to rotate with the cooperation of the first rack, so that the moving frame reciprocates and moves linearly, and the collection box can monitor the water and foam in the aeration tank at different positions.

[0022] In a possible design, the shooting structure includes a connecting platform arranged above the collecting box, and the connecting platform is welded to the bottom of the T-shaped sliding block, the connecting platform is slidably connected to the bottom of the movable frame, a plurality of multi-stage electric push rods are fixed to the bottom of the connecting platform, a protective cover for protecting the multi-stage electric push rods is fixed to the bottom of the connecting platform, the output shafts of the plurality of multi-stage electric push rods all slide through the protective cover and are fixed with the same U-shaped handle, and the collecting box is rotatably connected in the U-shaped handle, an incandescent lamp, a monitoring camera and a waterproof cover are fixed to the top inner wall of the U-shaped handle, and the waterproof cover is used to protect the incandescent lamp and the monitoring camera; the output shaft of the multi-stage electric push rod pushes the collecting box to move downward and sink into the sewage, and when the collecting box moves upward, it can hold sewage and foam, the incandescent lamp provides sufficient lighting for the monitoring camera, and the monitoring camera can clearly capture videos of the sewage and foam for judging the aeration condition of the sewage.

[0023] In a possible design, the shooting structure also includes two L-shaped connecting plates fixed on one side of the protective cover, two base plates are fixed on one side of the two L-shaped connecting plates, and the same fixed shaft is fixed between the two base plates, and the outer wall of the fixed shaft is rotatably sleeved with a rotating plate, and the outer wall of the fixed shaft is sleeved with two torsion springs, and the ends of the two torsion springs close to each other are respectively fixedly connected to the two sides of the rotating plate, and the other ends of the two torsion springs are respectively fixedly connected to the corresponding base plates, and two L-shaped connecting frames are welded on both sides of the collecting box, and the L-shaped connecting frames cooperate with the rotating plate, and one side of the two L-shaped connecting plates is fixed with a limiting block, and the limiting block is located at the bottom of the rotating plate for limiting the rotating plate; the output shaft of the multi-stage electric push rod pushes the U-shaped handle and the collecting box to move downward, and when the collecting box moves downward, the second gear disengages from the groove, and as the collecting box continues to move downward, the rotating plate touches the L-shaped connecting frame, driving the collecting box to tilt, which is used to dump the sewage contained in the collecting box, so as to facilitate the later retrieval of sewage and foam for inspection.

[0024] In a possible design, the defoaming structure includes an extrusion plate that is sealingly and slidably connected to the drainage box, two push rods are fixed on the top of the extrusion plate, and the top ends of the two push rods slide and extend to the top of the drainage box, and the outer walls of the two push rods are sleeved with springs, and the bottom ends of the springs are fixedly connected to the top of the drainage box, and the top ends of the springs are fixedly connected to the outer walls of the push rods. A liquid inlet hose is provided on the top of the drainage box, and the liquid inlet hose is connected to an external defoaming agent solution storage device, a plurality of nozzles are provided on one side of the drainage box, a plurality of one-way valves are provided in the extrusion plate, and a special-shaped wheel is rotatably connected to one side of the two nut blocks, and the special-shaped wheel cooperates with the push rod, and the special-shaped wheel is connected to the outer wall of the push rod. The shaped wheel is slidably sleeved on the outer wall of the first reciprocating screw rod through a slider and a slide groove; the defoamer solution is sprayed onto the foam through a nozzle, and the cooperation of the shaped wheel and the spring can drive the extrusion plate to move reciprocally up and down. When the extrusion plate moves down, the one-way valve is closed, and the extrusion plate squeezes the defoamer solution in the drainage box, so that the sprayed defoamer solution has more impact force. By spraying water flow or water droplets to break the bubbles floating on the water surface, the foam on the surface of the aeration tank can be effectively reduced. When the extrusion plate moves up, the one-way valve is opened, and the defoamer solution above the extrusion plate can flow into the bottom of the extrusion plate. Therefore, the up and down reciprocating movement of the extrusion plate can not only accelerate the elimination efficiency of the foam, but also stir the defoamer solution to avoid precipitation of the defoamer solution.

[0025] In a possible design, a stirring shaft is rotatably connected inside the collecting box, a plurality of stirring blades are fixed to the outer wall of the stirring shaft, one end of the stirring shaft is rotatably extended to the outside of the collecting box and is fixed with a second gear, a same limiting plate is fixed to one side of the two L-shaped connecting plates, and the limiting plate is used to limit the collecting box, a groove is provided on one side of the limiting plate, and a second rack meshing with the second gear is fixed to the inner wall of one side of the groove; when the collecting box moves upward, the limiting plate touches the collecting box and limits the collecting box to prevent the collecting box from rotating, and when the second gear moves into the groove, the second gear meshes with the second rack, and the second gear drives the stirring shaft and the stirring blades to rotate, so as to stir the sewage and foam in the collecting box. Through the cooperation of the incandescent lamp and the monitoring camera, not only can the video of the foam be clearly captured, but also the video of the sewage under the foam can be captured, which is used to determine the specific situation of sewage aeration at this time and facilitate corresponding measures to improve the efficiency of aeration.

[0026] In a possible design, the transmission mechanism consists of a synchronous wheel and a synchronous belt.

[0027] In a possible design, the waterproof cover is made of a transparent acrylic material.

[0028] In a possible design, a through hole is provided at the bottom of the collecting box, and a closing plate for closing the through hole is provided in the collecting box, and a plurality of sliding rods are fixed to the bottom of the closing plate, and the bottoms of the plurality of sliding rods are all sealed and slidable through the collecting box and are fixed with the same floating plate, and the buoyancy of the floating plate is greater than the gravity of the closing plate; when the collecting box is immersed in sewage, the floating plate pushes the closing plate upward under the action of buoyancy, thereby releasing the blockage of the through hole, and the sewage enters the collecting box, and then the collecting box moves upward, and during the upward movement, the sewage in the collecting box slowly leaks out through the through hole, so that the collecting box can more stably scoop up the foam floating on the surface, and when the collecting box moves to above the sewage, the floating plate loses its buoyancy, and the closing plate moves downward under the action of gravity to close the through hole.

[0029] In this application, a method for using a sewage treatment device based on digital twins comprises the following steps:

[0030] S1. Aeration and monitoring: oxygen is injected into the aeration pipe through the oxygen supply pipe, and aeration is performed in the aeration tank through the aeration pipe. The motor drives one of the first reciprocating screws to rotate, and the two first reciprocating screws are connected through the transmission mechanism. At this time, the two first reciprocating screws drive the moving frame to perform reciprocating linear motion, and the moving frame drives the second reciprocating screw and the first gear to move. The first gear drives the second reciprocating screw to rotate with the cooperation of the first rack. Therefore, when the moving frame moves back and forth in a straight line, the connecting platform moves back and forth in a straight line in the moving frame. The collection box can monitor the water and foam in the aeration tank at different positions, and can obtain more accurate video data. By transmitting the data to the sewage treatment equipment management system, it helps managers identify problems and make corresponding adjustments and improvements to improve sewage treatment efficiency;

[0031] S2. Sewage and foam collection: The output shaft of the multi-stage electric push rod pushes the U-shaped handle and the collection box to move downward. When the collection box moves downward, the second gear disengages from the groove. As the collection box continues to move downward, the rotating plate touches the L-shaped connecting frame, driving the collection box to tilt, which is used to dump the sewage contained in the collection box, so as to facilitate the later re-taking of sewage and foam for inspection. When the collection box moves to the bottom of the rotating plate, the collection box is reset and straightened under the action of gravity. When the collection box is immersed in the sewage, the floating plate pushes the closing plate upward under the action of buoyancy, and the blockage of the through hole is released. The sewage enters the collection box through the through hole and the top of the collection box. Then the collection box moves upward. During the upward movement, the sewage contained in the collection box slowly leaks out through the through hole, so that the collection box can more stably pick up the foam floating on the surface. When the collection box moves to the top of the sewage, the floating plate loses buoyancy, and the closing plate moves downward under the action of gravity to close the through hole.

[0032] S3, stirring and observing: when the collection box moves upward, the collection box pushes the rotating plate to rotate counterclockwise until the collection box is located above the rotating plate, and the rotating plate is reset under the action of the torsion spring. When the second gear moves into the groove, the second gear meshes with the second rack, and the second gear drives the stirring shaft and the stirring blade to rotate, which is used to stir the sewage and foam in the collection box. Through the cooperation of the incandescent lamp and the monitoring camera, not only can the video of the foam be clearly shot, but also the video of the sewage under the foam can be shot, which is used to determine the specific situation of sewage aeration at this time, and to facilitate the taking of corresponding measures to improve the efficiency of aeration;

[0033] S4. Foam elimination: When foam elimination is required, defoamer solution is injected into the drain tank through the liquid inlet hose, and the defoamer solution is sprayed onto the foam through the nozzle to eliminate the foam. The movable frame drives the drain tank to move to eliminate foam at different positions. In addition, the first reciprocating screw drives the special-shaped wheel to rotate, and the cooperation of the special-shaped wheel and the spring can drive the extrusion plate to move up and down reciprocatingly. When the extrusion plate moves down, the one-way valve is closed, and the extrusion plate squeezes the defoamer solution in the drain tank to make the sprayed defoamer solution more impactful. By spraying water or water droplets to break the bubbles floating on the water surface, the foam on the surface of the aeration tank can be effectively reduced. When the extrusion plate moves up, the one-way valve is opened, and the defoamer solution above the extrusion plate can flow into the bottom of the extrusion plate. Therefore, the up and down reciprocating movement of the extrusion plate can not only accelerate the foam elimination efficiency, but also stir the defoamer solution to avoid precipitation of the defoamer solution.

[0034] Beneficial effects:

[0035] In the present invention, a closing plate for closing the through hole is provided in the collection box, a plurality of sliding rods are fixed at the bottom of the closing plate, and a same floating plate is fixed at the bottom of the plurality of sliding rods; when the collection box is submerged in sewage, the floating plate pushes the closing plate upward under the action of buoyancy, thereby releasing the blockage of the through hole, and the sewage enters the collection box, and then the collection box moves upward, and during the upward movement, the sewage slowly leaks out through the through hole, so that the collection box can more stably scoop up the foam floating on the surface, and when the collection box moves to the top of the sewage, the floating plate loses buoyancy, and the closing plate closes the through hole again, so that the later monitoring camera can clearly take the video of the sewage and foam;

[0036] In the present invention, a stirring shaft is rotatably connected in the collection box, a second gear is fixed to one end of the stirring shaft, a groove is provided on one side of the limiting plate, and a second rack is fixed to an inner wall of one side of the groove; the limiting plate contacts the collection box and limits the collection box, and when the second gear is meshed with the second rack, the second gear drives the stirring shaft and the stirring blade to rotate, so as to stir the sewage and foam in the collection box. Through the cooperation of the incandescent lamp and the monitoring camera, not only can the video of the foam be clearly captured, but also the video of the sewage under the foam can be captured, so as to determine the specific situation of sewage aeration at this time and facilitate the taking of corresponding measures to improve the efficiency of aeration;

[0037] In the present invention, the defoaming structure comprises a squeeze plate which is sealingly and slidably connected in the drainage box, two push rods which are slidably extended to the top of the drainage box are fixed on the top of the squeeze plate, and a plurality of one-way valves are arranged in the squeeze plate; when the squeeze plate moves downward, the one-way valve is closed, and the squeeze plate squeezes the defoaming agent solution in the drainage box, so that the sprayed defoaming agent solution has more impact force to break the bubbles floating on the water surface; when the squeeze plate moves upward, the one-way valve is opened, and the defoaming agent solution above the squeeze plate can flow into the bottom of the squeeze plate; the up and down movement of the squeeze plate not only accelerates the elimination efficiency of the foam, but also stirs the defoaming agent solution to avoid precipitation of the defoaming agent solution;

[0038] In the present invention, the conditions of sewage and foam can be checked at different positions at night, so that corresponding measures can be taken later to improve the efficiency of aeration. In addition, the defoamer solution in the drainage box is intermittently squeezed by the cooperation of the push rod and the special-shaped wheel, so that the defoamer solution breaks the bubbles floating on the water surface, accelerates the elimination efficiency of the foam, and ensures the smooth aeration of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a three-dimensional structure of a sewage treatment equipment based on digital twins provided in Example 1 of the present invention;

[0040] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0041] Figure 3 A schematic diagram of a three-dimensional exploded structure of a nut block, a mobile frame and a connecting platform of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0042] Figure 4 A schematic diagram of a three-dimensional sectional exploded structure of a mobile frame, a T-shaped sliding block and a drainage box of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0043] Figure 5 A schematic diagram of the three-dimensional structure of a protective cover, an L-shaped connecting plate and a collecting box of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0044] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a protective cover, a collection box and a U-shaped handle of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0045] Figure 7 A schematic diagram of a three-dimensional structure of an L-shaped connecting plate and a limiting plate of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0046] Figure 8A schematic diagram of a three-dimensional exploded structure of a fixed shaft, a rotating plate and an L-shaped connecting plate of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0047] Fig. 9 A schematic diagram of a three-dimensional cross-sectional structure of a drainage tank and an extrusion plate of a sewage treatment equipment based on digital twin provided in Example 1 of the present invention;

[0048] Fig.10 A schematic diagram of the main cross-sectional structure of a collection box of a sewage treatment equipment based on digital twin provided in Example 2 of the present invention;

[0049] Fig.11 A block diagram of a digital twin-based sewage treatment equipment visualization management system provided in Example 1 of the present invention;

[0050] Fig.12 A flowchart of the steps of a digital twin-based sewage treatment equipment visualization management system provided in Example 1 of the present invention.

[0051] In the figure: 1, aeration tank; 2, aeration pipe; 3, first reciprocating screw; 4, transmission mechanism; 5, motor; 6, nut block; 7, moving frame; 8, T-shaped sliding groove; 9, T-shaped sliding block; 10, second reciprocating screw; 11, connecting table; 12, first gear; 13, first rack; 14, protective cover; 15, multi-stage electric push rod; 16, U-shaped handle; 17, collection box; 18, stirring shaft; 19, L-shaped connecting frame; 20, waterproof cover; 21, incandescent lamp; 22, monitoring Camera control; 23. L-shaped connecting plate; 24. Base plate; 25. Fixed shaft; 26. Torsion spring; 27. Rotating plate; 28. Limit block; 29. ​​Limiting plate; 30. Groove; 31. Second rack; 32. Second gear; 33. Stirring blade; 34. Drain box; 35. Spray nozzle; 36. Liquid inlet hose; 37. Extrusion plate; 38. One-way valve; 39. Push rod; 40. Spring; 41. Special-shaped wheel; 42. Through hole; 43. Closing plate; 44. Sliding rod; 45. Floating plate. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] Example 1

[0054] Reference Figure 1-Figure 9 , a sewage treatment equipment based on digital twin, which is used in the field of sewage treatment, comprises an aeration tank 1, a bottom inner wall of the aeration tank 1 is provided with a plurality of aeration pipes 2 for aeration, and the plurality of aeration pipes 2 are connected to an external oxygen production equipment through an oxygen supply pipe;

[0055] The collecting box 17 is arranged in the aeration tank 1 and is used to collect sewage and foam for later inspection. The inner wall of the collecting box 17 is coated with white paint;

[0056] The drainage box 34 is arranged above the aeration tank 1 and is used to quickly eliminate the foam in the aeration tank 1.

[0057] Reference Figure 1-Figure 4 The device also includes a driving structure arranged on the top of the aeration tank 1, which is used to drive the collection box 17 to collect sewage and foam at different positions; the driving structure includes two first reciprocating screws 3 that are rotatably connected to the top of the aeration tank 1 through a connecting seat, and the two first reciprocating screws 3 are connected through a transmission mechanism 4. A motor 5 is fixed to the top of the aeration tank 1 through a frame, and the output shaft of the motor 5 is fixedly connected to one end of one of the first reciprocating screws 3 through a coupling. The outer walls of the two first reciprocating screws 3 are threadedly sleeved with nut blocks 6, and the bottoms of the two nut blocks 6 are welded with the same moving frame 7, and both sides of the bottom of the moving frame 7 are slidably connected to the top of the aeration tank 1 through slide rails, and a T-shaped sliding groove 8 is provided in the moving frame 7. A second reciprocating screw rod 10 is rotatably connected in the movable frame 7, and one end of the second reciprocating screw rod 10 is rotatably extended to the outside of the movable frame 7 and is fixed with a first gear 12. A first rack 13 meshing with the first gear 12 is fixed on the top of the aeration tank 1, and a T-shaped sliding block 9 threadedly connected to the second reciprocating screw rod 10 is slidably connected in the T-shaped sliding groove 8; the two first reciprocating screw rods 3 drive the movable frame 7 to reciprocate linearly, and the movable frame 7 drives the second reciprocating screw rod 10 and the first gear 12 to move, and the first gear 12 drives the second reciprocating screw rod 10 to rotate with the cooperation of the first rack 13, so that the movable frame 7 reciprocates and moves linearly, and the collection box 17 can monitor the conditions of the pool water and foam in the aeration tank 1 at different positions.

[0058] Reference Figure 3 The transmission mechanism 4 is composed of a synchronous wheel and a synchronous belt.

[0059] Reference Figure 3 , Figure 5 and Figure 6The device also includes a shooting structure arranged above the collection box 17, which is used to clearly shoot the sewage and foam in the collection box 17; the shooting structure includes a connecting platform 11 arranged above the collection box 17, and the connecting platform 11 is welded to the bottom of the T-shaped sliding block 9, the connecting platform 11 is slidably connected to the bottom of the moving frame 7, a plurality of multi-stage electric push rods 15 are fixed at the bottom of the connecting platform 11, and a protective cover 14 for protecting the multi-stage electric push rods 15 is fixed at the bottom of the connecting platform 11, and the output shafts of the plurality of multi-stage electric push rods 15 all slide through the protective cover 14 and are fixed with the same U The U-shaped handle 16 is provided, and the collecting box 17 is rotatably connected in the U-shaped handle 16. An incandescent lamp 21, a monitoring camera 22 and a waterproof cover 20 are fixed to the top inner wall of the U-shaped handle 16. The waterproof cover 20 is used to protect the incandescent lamp 21 and the monitoring camera 22. The output shaft of the multi-stage electric push rod 15 pushes the collecting box 17 to move downward and immerse in the sewage. When the collecting box 17 moves upward, it can hold sewage and foam. The incandescent lamp 21 provides sufficient lighting for the monitoring camera 22. The monitoring camera 22 can clearly capture the video of the sewage and foam for judging the aeration condition of the sewage.

[0060] Reference Figure 6 The waterproof cover 20 is made of transparent acrylic material.

[0061] Reference Figure 6 , Figure 7 and Figure 8 The shooting structure also includes two L-shaped connecting plates 23 fixed to one side of the protective cover 14, two base plates 24 are fixed to one side of the two L-shaped connecting plates 23, a fixed shaft 25 is fixed between the two base plates 24, the outer wall of the fixed shaft 25 is rotatably sleeved with a rotating plate 27, the outer wall of the fixed shaft 25 is sleeved with two torsion springs 26, the ends of the two torsion springs 26 close to each other are respectively fixedly connected to the two sides of the rotating plate 27, the other ends of the two torsion springs 26 are respectively fixedly connected to the corresponding base plates 24, two L-shaped connecting frames 19 are welded on both sides of the collection box 17, and the L-shaped connecting frames 19 are welded to the two sides of the collection box 17. The frame 19 cooperates with the rotating plate 27, and a limiting block 28 is fixed on one side of the two L-shaped connecting plates 23, and the limiting block 28 is located at the bottom of the rotating plate 27 to limit the rotating plate 27; the output shaft of the multi-stage electric push rod 15 pushes the U-shaped handle 16 and the collecting box 17 to move downward. When the collecting box 17 moves downward, the second gear 32 disengages from the groove 30. As the collecting box 17 continues to move downward, the rotating plate 27 touches the L-shaped connecting frame 19, driving the collecting box 17 to tilt, which is used to dump the sewage contained in the collecting box 17, so as to facilitate the later retrieval of sewage and foam for inspection.

[0062] Reference Figure 6 and Figure 7The collecting box 17 is rotatably connected with a stirring shaft 18, and a plurality of stirring blades 33 are fixed to the outer wall of the stirring shaft 18. One end of the stirring shaft 18 is rotatably extended to the outside of the collecting box 17 and is fixed with a second gear 32. One side of the two L-shaped connecting plates 23 is fixed with the same limiting plate 29, and the limiting plate 29 is used to limit the collecting box 17. A groove 30 is provided on one side of the limiting plate 29, and a second rack 31 meshing with the second gear 32 is fixed on the inner wall of one side of the groove 30. When the collecting box 17 moves upward, the limiting plate 29 touches and contacts the collecting box 17. The collecting box 17 is limited to prevent the collecting box 17 from rotating. When the second gear 32 moves into the groove 30, the second gear 32 is meshed with the second rack 31. The second gear 32 drives the stirring shaft 18 and the stirring blade 33 to rotate, so as to stir the sewage and foam in the collecting box 17. Through the cooperation of the incandescent lamp 21 and the monitoring camera 22, not only can the video of the foam be clearly captured, but also the video of the sewage under the foam can be captured, so as to determine the specific situation of sewage aeration at this time and facilitate corresponding measures to improve the efficiency of aeration.

[0063] Reference Figure 2 , Figure 3 and Fig. 9The device also includes a defoaming structure arranged in the drainage box 34, which is used to quickly eliminate the foam in the aeration tank 1; the defoaming structure includes an extrusion plate 37 that is sealed and slidably connected to the drainage box 34, and two push rods 39 are fixed on the top of the extrusion plate 37. The top ends of the two push rods 39 are slidably extended to the top of the drainage box 34. The outer walls of the two push rods 39 are sleeved with springs 40, and the bottom ends of the springs 40 are fixedly connected to the top of the drainage box 34, and the top ends of the springs 40 are fixedly connected to the outer walls of the push rods 39. The top of the drainage box 34 is provided with a liquid inlet. The first reciprocating screw rod 3 is provided with a first reciprocating screw rod 39, and the first reciprocating screw rod 3 is provided with a first reciprocating screw rod 39. The first reciprocating screw rod 3 is provided with a first reciprocating screw rod 39, and the first reciprocating screw rod 39 ... When the squeezing plate 37 moves upward, the one-way valve 38 is closed, and the squeezing plate 37 squeezes the defoamer solution in the drain box 34, so that the sprayed defoamer solution has more impact. By spraying water or water droplets to break the bubbles floating on the water surface, the foam on the surface of the aeration tank 1 can be effectively reduced. When the squeezing plate 37 moves upward, the one-way valve 38 is opened, and the defoamer solution above the squeezing plate 37 can flow under the squeezing plate 37. Therefore, the up and down reciprocating movement of the squeezing plate 37 can not only accelerate the elimination efficiency of the foam, but also stir the defoamer solution to avoid precipitation of the defoamer solution. The sewage treatment equipment visualization management system based on digital twin includes data acquisition equipment, data processing equipment, data display equipment and digital twin data processing module. It analyzes the importance of each pixel in the image by analyzing the foam characteristics and sewage flow characteristics in the sewage aeration tank in the current scene, and then divides the grayscale histogram into intervals according to the distribution characteristics of the grayscale histogram in the current scene, and performs independent histogram equalization operations on each grayscale interval to prevent drastic jumps in pixel grayscale values, thereby achieving the effect of maintaining brightness and preventing excessive enhancement of image contrast.

[0064] Example 2

[0065] refer to Fig.10, an improvement on the basis of Example 1: a through hole 42 is provided at the bottom of the collecting box 17, a closing plate 43 for closing the through hole 42 is provided in the collecting box 17, a plurality of sliding rods 44 are fixed at the bottom of the closing plate 43, the bottoms of the plurality of sliding rods 44 are all sealed and slidable through the collecting box 17 and fixed with the same floating plate 45, and the buoyancy of the floating plate 45 is greater than the gravity of the closing plate 43; when the collecting box 17 is immersed in the sewage, the floating plate 45 pushes the closing plate 43 upward under the action of buoyancy, releases the blockage of the through hole 42, and the sewage enters the collecting box 17, and then the collecting box 17 moves upward, and during the upward movement, the sewage in the collecting box 17 slowly leaks out through the through hole 42, so that the collecting box 17 can more stably scoop up the foam floating on the surface, and when the collecting box 17 moves to above the sewage, the floating plate 45 loses its buoyancy, and the closing plate 43 moves downward under the action of gravity to close the through hole 42.

[0066] A method for using a sewage treatment device based on digital twins comprises the following steps:

[0067] S1. Oxygen is injected into the aeration pipe 2 through the oxygen supply pipe, and aeration is performed into the aeration tank 1 through the aeration pipe 2. The motor 5 drives one of the first reciprocating screws 3 to rotate. The two first reciprocating screws 3 are connected through the transmission mechanism 4. At this time, the two first reciprocating screws 3 drive the moving frame 7 to perform reciprocating linear motion, and the moving frame 7 drives the second reciprocating screw 10 and the first gear 12 to move. The first gear 12 drives the second reciprocating screw 10 to rotate with the cooperation of the first rack 13. Therefore, when the moving frame 7 reciprocates and moves linearly, the connecting platform 11 reciprocates and moves linearly in the moving frame 7. The collecting box 17 can monitor the water and foam in the aeration tank 1 at different positions, and can obtain more accurate video data. By transmitting the data to the sewage treatment equipment management system, it helps the management personnel identify problems and make corresponding adjustments and improvements to improve the sewage treatment efficiency;

[0068] S2. The output shaft of the multi-stage electric push rod 15 pushes the U-shaped handle 16 and the collection box 17 to move downward. When the collection box 17 moves downward, the second gear 32 disengages from the groove 30. As the collection box 17 continues to move downward, the rotating plate 27 touches the L-shaped connecting frame 19, driving the collection box 17 to tilt, so as to dump the sewage contained in the collection box 17, so as to facilitate the later re-collection of sewage and foam for inspection. When the collection box 17 moves to the bottom of the rotating plate 27, the collection box 17 is reset and straightened under the action of gravity. When the collection box 17 is When immersed in sewage, the floating plate 45 pushes the closing plate 43 upward under the action of buoyancy, thereby releasing the blockage of the through hole 42, and the sewage enters the collection box 17 through the through hole 42 and the top of the collection box 17. Then the collection box 17 moves upward, and during the upward movement, the sewage in the collection box 17 slowly leaks out through the through hole 42, so that the collection box 17 can more stably scoop up the foam floating on the surface. When the collection box 17 moves to the top of the sewage, the floating plate 45 loses its buoyancy, and the closing plate 43 moves downward under the action of gravity to close the through hole 42.

[0069] S3. When the collecting box 17 moves upward, the collecting box 17 pushes the rotating plate 27 to rotate counterclockwise until the collecting box 17 is located above the rotating plate 27. The rotating plate 27 is reset under the action of the torsion spring 26. When the second gear 32 moves into the groove 30, the second gear 32 is meshed with the second rack 31. The second gear 32 drives the stirring shaft 18 and the stirring blade 33 to rotate, which is used to stir the sewage and foam in the collecting box 17. Through the cooperation of the incandescent lamp 21 and the monitoring camera 22, not only can the video of the foam be clearly captured, but also the video of the sewage under the foam can be captured, which is used to determine the specific situation of sewage aeration at this time and facilitate the taking of corresponding measures to improve the efficiency of aeration;

[0070] S4. When it is necessary to eliminate foam, the defoamer solution is injected into the drain box 34 through the liquid inlet hose 36, and the defoamer solution is sprayed onto the foam through the nozzle 35 to eliminate the foam. The movable frame 7 drives the drain box 34 to move so as to eliminate foam at different positions. In addition, the first reciprocating screw 3 drives the special-shaped wheel 41 to rotate, and the cooperation of the special-shaped wheel 41 and the spring 40 can drive the extrusion plate 37 to move up and down. When the extrusion plate 37 moves down, the one-way valve 38 is closed, and the extrusion plate 37 squeezes the defoamer solution in the drain box 34, so that the sprayed defoamer solution has more impact. By spraying water or water droplets to break the bubbles floating on the water surface, the foam on the surface of the aeration tank 1 can be effectively reduced. When the extrusion plate 37 moves up, the one-way valve 38 is opened, and the defoamer solution above the extrusion plate 37 can flow into the bottom of the extrusion plate 37. Therefore, the up and down reciprocating movement of the extrusion plate 37 can not only accelerate the elimination efficiency of the foam, but also stir the defoamer solution to avoid precipitation of the defoamer solution.

[0071] However, as is well known to those skilled in the art, the working principles and wiring methods of the multi-stage electric push rod 15, motor 5, incandescent lamp 21 and monitoring camera 22 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sewage treatment equipment based on digital twin, characterized in that: It comprises an aeration tank (1), wherein the bottom inner wall of the aeration tank (1) is provided with a plurality of aeration pipes (2) for aeration, and the plurality of aeration pipes (2) are connected to external oxygen production equipment via oxygen supply pipes; A collecting box (17), the collecting box (17) being arranged in the aeration tank (1) and used to collect sewage and foam for later inspection, the inner wall of the collecting box (17) being coated with white paint; A drainage box (34), the drainage box (34) being arranged above the aeration tank (1) and being used to quickly eliminate foam in the aeration tank (1); A driving structure, arranged at the top of the aeration tank (1), for driving the collecting box (17) to collect sewage and foam at different positions; A photographing structure, arranged above the collecting box (17), for clearly photographing the sewage and foam contained in the collecting box (17); A defoaming structure, arranged in the drainage tank (34), for quickly eliminating foam in the aeration tank (1); The driving structure comprises two first reciprocating screws (3) rotatably connected to the top of the aeration tank (1) via a connecting seat, and the two first reciprocating screws (3) are transmission-connected via a transmission mechanism (4), a motor (5) is fixed to the top of the aeration tank (1) via a frame, an output shaft of the motor (5) is fixedly connected to one end of one of the first reciprocating screws (3) via a coupling, nut blocks (6) are threadedly sleeved on the outer walls of the two first reciprocating screws (3), the bottoms of the two nut blocks (6) are welded with a same moving frame (7), and the moving frame Both sides of the bottom of the aeration tank (7) are slidably connected to the top of the aeration tank (1) through slide rails, a T-shaped sliding groove (8) is provided in the movable frame (7), a second reciprocating screw (10) is rotatably connected in the movable frame (7), and one end of the second reciprocating screw (10) is rotatably extended to the outside of the movable frame (7) and is fixed with a first gear (12), a first rack (13) meshing with the first gear (12) is fixed on the top of the aeration tank (1), and a T-shaped sliding block (9) threadedly connected to the second reciprocating screw (10) is slidably connected in the T-shaped sliding groove (8); The shooting structure comprises a connecting platform (11) arranged above the collection box (17), and the connecting platform (11) is welded to the bottom of the T-shaped sliding block (9), the connecting platform (11) is slidably connected to the bottom of the moving frame (7), a plurality of multi-stage electric push rods (15) are fixed to the bottom of the connecting platform (11), a protective cover (14) for protecting the multi-stage electric push rods (15) is fixed to the bottom of the connecting platform (11), the output shafts of the plurality of multi-stage electric push rods (15) all slide through the protective cover (14) and are fixed with the same U-shaped handle (16), and the collection box (17) is rotatably connected in the U-shaped handle (16), and an incandescent lamp (21), a monitoring camera (22) and a waterproof cover (20) are fixed to the top inner wall of the U-shaped handle (16), and the waterproof cover (20) is used to protect the incandescent lamp (21) and the monitoring camera (22).

2. The sewage treatment equipment based on digital twin according to claim 1, characterized in that: The shooting structure further comprises two L-shaped connecting plates (23) fixed to one side of the protective cover (14); two base plates (24) are fixed to one side of the two L-shaped connecting plates (23); a same fixed shaft (25) is fixed between the two base plates (24); an outer wall of the fixed shaft (25) is rotatably sleeved with a rotating plate (27); an outer wall of the fixed shaft (25) is sleeved with two torsion springs (26); one end of the two torsion springs (26) close to each other is respectively fixedly connected to the two sides of the rotating plate (27); the other ends of the two torsion springs (26) are respectively fixedly connected to the corresponding base plates (24); two L-shaped connecting frames (19) are welded to the two sides of the collection box (17); the L-shaped connecting frames (19) are matched with the rotating plate (27); a limiting block (28) is fixed to one side of the two L-shaped connecting plates (23); and the limiting block (28) is located at the bottom of the rotating plate (27) and is used to limit the rotating plate (27).

3. A sewage treatment equipment based on digital twin according to claim 2, characterized in that: The defoaming structure comprises an extrusion plate (37) which is sealingly and slidably connected to the inside of the liquid discharge box (34); two push rods (39) are fixed to the top of the extrusion plate (37); the top ends of the two push rods (39) are slidably extended to the top of the liquid discharge box (34); the outer walls of the two push rods (39) are sleeved with springs (40); the bottom ends of the springs (40) are fixedly connected to the top of the liquid discharge box (34); the top ends of the springs (40) are fixedly connected to the outer walls of the push rods (39); the liquid discharge box A liquid inlet hose (36) is provided at the top of the (34), and the liquid inlet hose (36) is connected to an external defoaming agent solution storage device. A plurality of nozzles (35) are provided on one side of the liquid discharge box (34). A plurality of one-way valves (38) are provided in the extrusion plate (37). One side of the two nut blocks (6) is rotatably connected to a shaped wheel (41), and the shaped wheel (41) cooperates with the push rod (39). The shaped wheel (41) is slidably sleeved on the outer wall of the first reciprocating screw rod (3) through a slider and a slide groove.

4. The sewage treatment equipment based on digital twin according to claim 3 is characterized in that: A stirring shaft (18) is rotatably connected inside the collection box (17), a plurality of stirring blades (33) are fixed to the outer wall of the stirring shaft (18), one end of the stirring shaft (18) is rotatably extended to the outside of the collection box (17) and is fixed with a second gear (32), one side of the two L-shaped connecting plates (23) is fixed with a same limiting plate (29), and the limiting plate (29) is used to limit the position of the collection box (17), one side of the limiting plate (29) is provided with a groove (30), and one side inner wall of the groove (30) is fixed with a second rack (31) meshing with the second gear (32).

5. The sewage treatment equipment based on digital twin according to claim 4 is characterized in that: The transmission mechanism (4) is composed of a synchronous wheel and a synchronous belt.

6. The sewage treatment equipment based on digital twin according to claim 5 is characterized in that: The waterproof cover (20) is made of a transparent acrylic material.

7. The digital twin-based sewage treatment equipment according to claim 6 is characterized in that: The bottom of the collection box (17) is provided with a through hole (42), and a closing plate (43) for closing the through hole (42) is provided inside the collection box (17). A plurality of sliding rods (44) are fixed to the bottom of the closing plate (43). The bottoms of the plurality of sliding rods (44) are sealed and slide through the collection box (17) and are fixed with a same floating plate (45), and the buoyancy of the floating plate (45) is greater than the gravity of the closing plate (43).

8. The method for using a sewage treatment equipment based on digital twin according to claim 7, characterized in that: The following steps are involved: S1. Aeration and monitoring: oxygen is injected into the aeration pipe (2) through the oxygen supply pipe, and aeration is carried out into the aeration tank (1) through the aeration pipe (2). The motor (5) drives one of the first reciprocating screws (3) to rotate. The two first reciprocating screws (3) are connected by a transmission mechanism (4). At this time, the two first reciprocating screws (3) drive the moving frame (7) to perform reciprocating linear motion, and the moving frame (7) drives the second reciprocating screw (10) and the first gear (12) to move. The first gear (12) drives the second reciprocating screw (10) to rotate in cooperation with the first rack (13). Therefore, when the moving frame (7) moves back and forth in a linear motion, the connecting platform (11) moves back and forth in a linear motion inside the moving frame (7). The collecting box (17) can monitor the conditions of the water and foam in the aeration tank (1) at different positions, and can obtain relatively accurate video data. By transmitting the data to the sewage treatment equipment management system, it helps the management personnel to identify problems and make corresponding adjustments and improvements. S2. Sewage and foam collection: The output shaft of the multi-stage electric push rod (15) pushes the U-shaped handle (16) and the collection box (17) to move downward. When the collection box (17) moves downward, the second gear (32) disengages from the groove (30). As the collection box (17) continues to move downward, the rotating plate (27) contacts the L-shaped connecting frame (19), driving the collection box (17) to tilt, so as to dump the sewage contained in the collection box (17) to facilitate the later re-collection of sewage and foam for inspection. When the collection box (17) moves to the bottom of the rotating plate (27), the collection box (17) is reset and rectified under the action of gravity. When the collection box (17) is rotated, the rotating plate (27) contacts the L-shaped connecting frame (19), driving the collection box (17) to tilt. When the box (17) is immersed in sewage, the floating plate (45) pushes the closing plate (43) upward under the action of buoyancy, thereby releasing the blockage of the through hole (42), and the sewage enters the collection box (17) through the through hole (42) and the top of the collection box (17). Then the collection box (17) moves upward, and during the upward movement, the sewage in the collection box (17) slowly leaks out through the through hole (42), thereby enabling the collection box (17) to more stably scoop up the foam floating on the surface. When the collection box (17) moves to the top of the sewage, the floating plate (45) loses its buoyancy, and the closing plate (43) moves downward under the action of gravity to close the through hole (42). S3, stirring and observing: when the collection box (17) moves upward, the collection box (17) pushes the rotating plate (27) to rotate counterclockwise until the collection box (17) is located above the rotating plate (27). The rotating plate (27) is reset under the action of the torsion spring (26). When the second gear (32) moves into the groove (30), the second gear (32) meshes with the second rack (31). The second gear (32) drives the stirring shaft (18) and the stirring blade (33) to rotate, so as to stir the sewage and foam in the collection box (17). Through the cooperation of the incandescent lamp (21) and the monitoring camera (22), not only can a video of the foam be clearly captured, but also a video of the sewage under the foam can be captured, so as to determine the specific situation of sewage aeration at this time. S4. Foam elimination: When foam elimination is required, a defoaming agent solution is injected into the liquid discharge box (34) through the liquid inlet hose (36), and the defoaming agent solution is sprayed onto the foam through the nozzle (35) to eliminate the foam. The movable frame (7) drives the liquid discharge box (34) to move so as to eliminate foam at different positions. In addition, the first reciprocating screw (3) drives the shaped wheel (41) to rotate, and the cooperation of the shaped wheel (41) and the spring (40) can drive the extrusion plate (37) to move up and down. When the squeezing plate (37) moves downward, the one-way valve (38) is closed, and the squeezing plate (37) squeezes the defoaming agent solution in the drainage box (34), so that the sprayed defoaming agent solution has a stronger impact force. By spraying water streams or water droplets to break the bubbles floating on the water surface, the foam on the surface of the aeration tank (1) can be effectively reduced. When the squeezing plate (37) moves upward, the one-way valve (38) is opened, and the defoaming agent solution above the squeezing plate (37) can flow into the bottom of the squeezing plate (37).

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