Water treatment device for solving UASB (Upflow Anaerobic Sludge Blanket) mud running problem

Abstract

The invention relates to the technical field of water treatment, and discloses a water treatment device for solving the problem of UASB (Upflow Anaerobic Sludge Blanket) sludge runaway, the water treatment device comprises a flow dredging sedimentation tank and a UASB anaerobic reactor, a first stirring mechanism is arranged in the UASB anaerobic reactor, a screw pump is arranged between the flow dredging sedimentation tank and the UASB anaerobic reactor, and a second stirring mechanism is arranged in the UASB anaerobic reactor. The input end of the screw pump is fixedly connected with a first sludge discharge water pipe, the end, away from the screw pump, of the first sludge discharge water pipe is fixedly connected to the outer side of the UASB anaerobic reactor, and the output end of the screw pump is fixedly connected with a second sludge discharge water pipe. One end, far away from the screw pump, of the sludge discharge water pipe II is fixedly connected to the outer side of the dredging sedimentation tank. By optimizing a first stirring mechanism of the UASB anaerobic reactor and utilizing the dynamic stirring function of a square rod, a sliding column and a stirring rod, sufficient mixing of sludge and water is ensured, and sludge loss is avoided; through the design of the scraper assembly, sludge attached to the inner wall of the reactor is cleaned in real time, and the influence of sludge accumulation on the operation efficiency is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a water treatment device for solving the problem of UASB mud leakage. Background Art

[0002] UASB (upflow anaerobic sludge blanket) is an efficient anaerobic biological treatment technology that has been widely used in the treatment of urban and industrial wastewater. The device uses microorganisms to decompose organic matter under anaerobic conditions to produce biogas and purify sewage at the same time. The operation of the UASB device can achieve efficient removal of organic pollutants and recover energy while treating sewage, which has significant economic and environmental benefits.

[0003] In the existing technology, in order to alleviate the problem of sludge loss in the UASB system, the industry usually takes measures such as reducing the stirring intensity, adjusting the water intake, and adding pretreatment units. For example, by reducing the stirring intensity, sludge loss can be reduced to a certain extent, but it will weaken the full contact between sewage and microorganisms, thereby affecting the overall treatment efficiency of the system; although adjusting the water intake can reduce the impact load, it has high requirements for operating parameters, and the slightest carelessness may cause system instability; and adding a pretreatment unit, although it can effectively remove suspended solids, it significantly increases the construction cost and the difficulty of daily maintenance. In addition, some studies have suggested adding an inclined plate sedimentation tank at the outlet of the UASB to further separate fine particles through physical sedimentation, but it occupies a large area and is complex to maintain, making it difficult to meet the needs of different sewage treatment.

[0004] Although the above methods have improved the sludge loss problem of UASB to a certain extent, there are still obvious technical defects. Reducing the stirring intensity directly affects the treatment efficiency, the high cost of the pretreatment unit limits its practical application, and the structural characteristics of the inclined plate sedimentation tank limit its flexibility and applicability. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a water treatment device for solving the UASB sludge problem, thereby solving the problems of sludge loss, high operating costs and low resource utilization.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water treatment device for solving the UASB sludge leakage problem, comprising a drainage sedimentation tank and a UASB anaerobic reactor, a first stirring mechanism is arranged inside the UASB anaerobic reactor, a screw pump is arranged between the drainage sedimentation tank and the UASB anaerobic reactor, an input end of the screw pump is fixedly connected to a sludge discharge water pipe 1, an end of the sludge discharge water pipe 1 away from the screw pump is fixedly connected to the outside of the UASB anaerobic reactor, an output end of the screw pump is fixedly connected to a sludge discharge water pipe 2, an end of the sludge discharge water pipe 2 away from the screw pump is fixedly connected to the outside of the drainage sedimentation tank, and a second stirring mechanism and a drainage mechanism are arranged inside the drainage sedimentation tank.

[0007] Preferably, the first stirring mechanism includes a motor 1, which is fixedly connected to the top of the UASB anaerobic reactor, a square rod is fixedly connected to the output end of the motor 1, a sliding column is slidably connected to the outside of the square rod, an inclined turntable and a plurality of main stirring rods are fixedly connected to the outside of the sliding column in sequence from top to bottom, a plurality of auxiliary stirring rods are fixedly connected between the upper and lower main stirring rods, a cleaning assembly is fixedly connected to one end of the main stirring rod away from the sliding column, a fixed rod is fixedly connected to the top wall of the UASB anaerobic reactor, and an upper roller and a lower roller are fixedly connected to the outside of the fixed rod in sequence from top to bottom.

[0008] Preferably, the cleaning assembly includes a hollow shell, one side of the hollow shell is fixedly connected to the end of the main stirring rod away from the sliding column, a plurality of springs are arranged inside the hollow shell, a limiting plate is slidably connected inside the hollow shell, and a scraper is fixedly connected to one side of the limiting plate.

[0009] Preferably, the second stirring mechanism includes a guide tube and a connecting plate, the connecting plate is fixedly connected to the inside of the drainage sedimentation tank, the top of the guide tube is fixedly connected to the bottom of the connecting plate, the inside of the connecting plate is fixedly connected to motor 2, the output end of motor 2 is fixedly connected to a propeller through a connecting shaft, the inside of the guide tube is fixedly connected to connecting frame 1, the propeller is rotatably connected to the middle part of connecting frame 1 at one end away from motor 2, and an automatic feeding assembly is arranged inside the guide tube.

[0010] Preferably, the automatic feeding assembly includes a hollow column, which is fixedly connected to the bottom of the connecting plate through a connecting block, a second spring is arranged inside the hollow column, a piston is slidably connected inside the hollow column, a connecting rod is fixedly connected to one side of the piston, an end of the connecting rod away from the piston is fixedly connected to a concave plate, a connecting pipe and a hollow pipe are fixedly connected to the outside of the hollow column in sequence from top to bottom, an end of the connecting pipe away from the hollow column is fixedly connected to a storage box, the bottom of the storage box is fixedly connected to the top of the connecting plate, an electromagnetic one-way valve is fixedly connected inside the connecting pipe, a second one-way valve is fixedly connected inside the hollow tube, and an elliptical turntable is fixedly connected to the connecting shaft near the outside of the second motor.

[0011] Preferably, the drainage mechanism includes an overflow trough and an outlet pipe, the overflow trough is fixedly connected to the inner wall of the drainage sedimentation tank, the outlet pipe is fixedly connected to the outside of the drainage sedimentation tank and is on the same horizontal plane as the overflow trough, and a filter assembly is arranged inside the outlet pipe.

[0012] Preferably, the filter assembly includes a filter plate, the filter plate is fixedly connected to the inside of the water outlet pipe, a connecting frame 2 is fixedly connected to the inside of the water outlet pipe, an impeller is rotatably connected to the middle of the connecting frame 2, a connecting column is fixedly connected to the side of the impeller away from the connecting frame 2, an end of the connecting column away from the impeller is fixedly connected to a hollow shell 2, a plurality of springs 3 are arranged inside the hollow shell 2, a limiting plate 2 is slidably connected to the inside of the hollow shell 2, and a brush is fixedly connected to one side of the limiting plate 2.

[0013] Preferably, an aeration device is provided on the outside of the UASB anaerobic reactor, an output end of the aeration device is fixedly connected to an air inlet pipe, one end of the air inlet pipe away from the aeration device is fixedly connected to the outside of the UASB anaerobic reactor, a one-way valve 1 is fixedly connected inside the air inlet pipe, the top of the UASB anaerobic reactor is connected to a gas collecting tank through a hose, a single screw pump is provided on the outside of the drainage sedimentation tank, an input end of the single screw pump is fixedly connected to a mud discharge pipe 1, one end of the mud discharge pipe 1 away from the single screw pump is fixedly connected to the outside of the drainage sedimentation tank, an output end of the single screw pump is fixedly connected to a mud discharge pipe 2, one end of the mud discharge pipe 2 away from the single screw pump is fixedly connected to the outside of the UASB anaerobic reactor, a sunshade is provided directly above the drainage sedimentation tank, and a heating device is provided on the inner bottom wall of the UASB anaerobic reactor.

[0014] Preferably, the outer side of the inclined turntable is slidably connected between the upper roller and the lower roller, the scraper is in contact with the inner wall of the UASB anaerobic reactor on the side away from the limit plate, one end of the spring is fixedly connected to the side of the limit plate away from the scraper, the other end of the spring is in contact with the inner wall of the hollow shell, and the outer side of the scraper is slidably connected to the inside of the hollow shell.

[0015] Preferably, the outer side of the elliptical turntable is in contact with the concave plate and is slidably connected to the surface of the concave plate, one end of the spring 2 is fixedly connected to the side of the piston away from the connecting rod, and the other end of the spring 2 is in contact with the inner wall of the hollow column, one end of the spring 3 is fixedly connected to the side of the limit plate 2 away from the brush, and the other end of the spring 3 is in contact with the inner wall of the hollow shell 2, and the brush is in contact with the surface of the filter plate.

[0016] The present invention provides a water treatment device to solve the UASB mud leakage problem. It has the following beneficial effects: 1. The present invention optimizes the first stirring mechanism of the UASB anaerobic reactor and utilizes the dynamic stirring function of the square rod, the sliding column and the stirring rod to ensure the full mixing of sludge and water and avoid sludge loss; through the design of the scraper assembly, the sludge attached to the inner wall of the reactor is cleaned in real time to prevent the influence of sludge accumulation on the operating efficiency.

[0017] 2. The present invention significantly enhances the sedimentation performance of sludge particles by using a low-speed stirring device in the drainage sedimentation tank to break bubbles and weaken the buoyancy. The automatic feeding component accurately feeds coagulants, and through charge neutralization and bridging effects, the suspended particles are quickly condensed to form large flocs, which are accelerated to settle to the bottom to form a dense sludge layer. The clear liquid is discharged after passing through the overflow trough and the filter plate. The automatic cleaning function of the brush in the filter component ensures that the surface of the filter plate is unobstructed, intercepts potential hazardous substances, further improves the effluent quality, and ensures that the effluent meets the standards.

[0018] 3. The present invention greatly reduces the burden on subsequent treatment units, reduces the operating pressure of the equipment, and extends the service life of the equipment through efficient sludge sedimentation and clear liquid discharge design; the concentrated sludge is returned to the UASB anaerobic reactor through a single screw pump for recycling, which further improves the activity of anaerobic microorganisms, while reducing the sludge discharge volume and reducing the subsequent sludge treatment costs.

[0019] 4. In the low temperature environment in winter, the heating device of the present invention maintains the activity of anaerobic microorganisms by accurately controlling the reaction temperature to ensure stable operation of the system; in high temperature or dry areas, the sunshade directly above the drainage sedimentation tank effectively reduces water evaporation, extends the service life of the equipment, and enhances the adaptability of the device in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of the present invention; Figure 2 It is a cross-sectional schematic diagram of the UASB anaerobic reactor of the present invention; Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 for Figure 3 The enlarged schematic diagram of point B in the middle; Figure 5 It is a cross-sectional schematic diagram of a drainage sedimentation tank of the present invention; Figure 6 for Figure 5 The enlarged schematic diagram at C in the middle; Figure 7 It is a schematic cross-sectional view of a water outlet pipe of the present invention; Figure 8 for Figure 7 The enlarged schematic diagram at D in the middle; Fig. 9 for Figure 8 Enlarged schematic diagram at point E in the middle.

[0021] Among them, 1. Single screw pump; 2. Mud discharge pipe 1; 3. Drainage sedimentation tank; 4. Mud discharge pipe 2; 5. Screw pump; 6. Sludge discharge pipe 1; 7. UASB anaerobic reactor; 8. Air inlet pipe; 9. One-way valve 1; 10. Aeration device; 11. Air collecting tank; 12. Motor 1; 13. Sludge discharge pipe 2; 14. Awning; 15. Sliding column; 16. Heating device; 17. Main stirring rod; 18. Fixed rod; 19. Upper roller; 20. Lower roller; 21. Auxiliary stirring rod; 22. Inclined turntable; 23. Square rod; 24. Spring 1; 25. Limit plate 1; 26. Air Core shell one; 27, scraper; 28, guide tube; 29, connecting plate; 30, overflow trough; 31, outlet pipe; 32, propeller; 33, connecting frame one; 34, storage box; 35, spring two; 36, one-way valve two; 37, hollow tube; 38, piston; 39, hollow column; 40, connecting rod; 41, concave plate; 42, elliptical turntable; 43, connecting pipe; 44, motor two; 45, electromagnetic one-way valve; 46, filter plate; 47, connecting column; 48, connecting frame two; 49, impeller; 50, brush; 51, hollow shell two; 52, spring three; 53, limit plate two. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to the attached Figure 1 - Attachment Fig. 9The embodiment of the present invention provides a water treatment device for solving the UASB sludge leakage problem, including a drainage sedimentation tank 3 and a UASB anaerobic reactor 7, wherein a first stirring mechanism is arranged inside the UASB anaerobic reactor 7, a screw pump 5 is arranged between the drainage sedimentation tank 3 and the UASB anaerobic reactor 7, an input end of the screw pump 5 is fixedly connected with a sludge discharge pipe 1 6, an end of the sludge discharge pipe 1 6 away from the screw pump 5 is fixedly connected to the outside of the UASB anaerobic reactor 7, an output end of the screw pump 5 is fixedly connected with a sludge discharge pipe 2 13, an end of the sludge discharge pipe 2 13 away from the screw pump 5 is fixedly connected to the outside of the drainage sedimentation tank 3, and a second stirring mechanism and a drainage mechanism are arranged inside the drainage sedimentation tank 3.

[0024] A first stirring mechanism is provided inside the UASB anaerobic reactor 7, which is used to fully mix the sludge and the influent, ensure the full contact between the microorganisms and the organic matter, and improve the efficiency of the anaerobic reaction. The design of the first stirring mechanism makes the sludge evenly distributed, which helps to avoid the reduction of local reaction efficiency. The drainage sedimentation tank 3 and the UASB anaerobic reactor 7 are connected by a screw pump 5. The function of the screw pump 5 is to efficiently transport the mixed liquid in the UASB anaerobic reactor 7 to the drainage sedimentation tank 3, ensure the smooth transmission of the liquid, and avoid further damage to the sludge particles caused by turbulence. The input end of the screw pump 5 is fixedly connected to a sludge discharge pipe 6, and the end of the sludge discharge pipe 6 away from the screw pump 5 is fixedly connected to the outside of the UASB anaerobic reactor 7, which is used to extract the mixed liquid from the UASB anaerobic reactor 7. The output end of the screw pump 5 is fixedly connected to a sludge discharge pipe 2 13, and the end of the sludge discharge pipe 2 13 away from the screw pump 5 is fixedly connected to the outside of the drainage sedimentation tank 3, which is used to smoothly transport the mixed liquid to the drainage sedimentation tank 3. A second stirring mechanism and a drainage mechanism are provided inside the drainage sedimentation tank 3, wherein the second stirring mechanism is used to break up large bubbles in the water flow by low-speed stirring, weaken the effect of gas buoyancy on the sludge settling performance, and promote the sedimentation of sludge particles in the mixed liquid. The drainage mechanism includes a device for collecting and discharging clarified supernatant, which can effectively remove impurities in sewage and ensure that the effluent water quality is stable and meets the standards. The entire device can effectively solve the sludge leakage problem of the UASB anaerobic reactor 7 through the organic combination and coordinated operation of various parts, and improve the system operation efficiency and sewage treatment capacity. Please refer to the attached Figure 1 - Attachment Figure 4The first stirring mechanism includes a motor 12, which is fixedly connected to the top of the UASB anaerobic reactor 7. A square rod 23 is fixedly connected to the output end of the motor 12. A sliding column 15 is slidably connected to the outside of the square rod 23. An inclined turntable 22 and a plurality of main stirring rods 17 are fixedly connected to the outside of the sliding column 15 from top to bottom. A plurality of auxiliary stirring rods 21 are fixedly connected between the upper and lower main stirring rods 17. A cleaning assembly is fixedly connected to one end of the main stirring rod 17 away from the sliding column 15. A fixed rod 18 is fixedly connected to the top wall of the UASB anaerobic reactor 7. An upper roller 19 and a lower roller 20 are fixedly connected to the outside of the fixed rod 18 from top to bottom.

[0025] The first stirring mechanism is composed of multiple components, which is used to achieve full mixing of sludge and influent in the UASB anaerobic reactor 7, and cooperates with the cleaning component to scrape and clean the sludge attached to the inner wall of the reactor to improve the reaction efficiency and equipment cleanliness. The motor 12 is fixedly connected to the top of the UASB anaerobic reactor 7. The function of the motor 12 is to provide rotational power. The output end of the motor 12 is fixedly connected to a square rod 23, and the square rod 23 rotates under the drive of the motor 12. The outer side of the square rod 23 is slidably connected to a sliding column 15, and the sliding design of the sliding column 15 can move up and down with the rotation of the square rod 23 to expand the stirring range. The outer side of the sliding column 15 is fixedly connected with an inclined turntable 22 and a plurality of main stirring rods 17 from top to bottom in sequence. The connection between the inclined turntable 22 and the main stirring rod 17 ensures that the stirring mechanism can drive the main stirring rod 17 to move up and down effectively when rotating. A plurality of auxiliary stirring rods 21 are fixedly connected between the upper and lower main stirring rods 17. The function of the auxiliary stirring rod 21 is to enhance the stirring effect, fully mix the sludge and water, and improve the reaction efficiency. The end of the main stirring rod 17 away from the sliding column 15 is fixedly connected to a cleaning component, which is used to remove sludge attached to the inner wall of the reactor to ensure the operating efficiency and cleanliness of the reactor. A fixed rod 18 is fixedly connected to the top wall of the UASB anaerobic reactor 7, and the outer side of the fixed rod 18 is fixedly connected to an upper roller 19 and a lower roller 20 in sequence from top to bottom. The design of the rollers and the inclined turntable 22 can drive the sliding column 15 to slide flexibly on the square rod 23, driving the stirring mechanism to stir efficiently inside the reactor. At the same time, the cleaning component scrapes and cleans the inner wall of the reactor through the movement of the main stirring rod 17, further improving the operating efficiency and sewage treatment capacity of the system. Please see attached Figure 1 - Attachment Figure 4 The cleaning assembly includes a hollow shell 26, one side of the hollow shell 26 is fixedly connected to the end of the main stirring rod 17 away from the sliding column 15, a plurality of springs 24 are arranged inside the hollow shell 26, a limit plate 25 is slidably connected inside the hollow shell 26, and a scraper 27 is fixedly connected to one side of the limit plate 25.

[0026] The cleaning assembly is composed of multiple parts, which is designed to efficiently clean the sludge attached to the inner wall of the UASB anaerobic reactor 7, prevent the sludge from sticking, and improve the operating efficiency. The hollow shell 26 serves as the main frame of the cleaning assembly, one side of which is fixedly connected to the end of the main stirring rod 17 away from the sliding column 15, and moves up and down and rotates with the movement of the main stirring rod 17. A plurality of springs 24 are arranged inside the hollow shell 26, one end of the spring 24 abuts against the inner wall of the hollow shell 26, and the other end is connected to the limit plate 25, providing elastic support and buffering functions to ensure that the limit plate 25 can slide flexibly. The limit plate 25 is slidably connected inside the hollow shell 26 through the action of the spring 24, and has good flexibility and stability. A scraper 27 is fixedly connected to one side of the limit plate 25, and the scraper 27 is close to the inner wall of the UASB anaerobic reactor 7, and scrapes and cleans the inner wall with the movement of the main stirring rod 17. The scraper 27 can adapt to the curvature and shape changes of the inner wall through the elastic adjustment of the spring 24, so as to achieve uniform and efficient cleaning operation. The entire cleaning assembly can not only remove the sludge attached to the inner wall of the reactor through the synergistic effect of the hollow shell 26, the spring 24, the limit plate 25 and the scraper 27, but also avoid the influence of sludge accumulation on the reaction efficiency, ensure the long-term stable operation of the UASB anaerobic reactor 7, and improve the operating efficiency of the system and the service life of the equipment. Please see attached Figure 1 , Attachment Figure 5 , Attachment Figure 6 , and attached Figure 7 The second stirring mechanism includes a guide tube 28 and a connecting plate 29. The connecting plate 29 is fixedly connected to the inside of the drainage sedimentation tank 3. The top of the guide tube 28 is fixedly connected to the bottom of the connecting plate 29. The inside of the connecting plate 29 is fixedly connected to a motor 2 44. The output end of the motor 2 44 is fixedly connected to a propeller 32 through a connecting shaft. The inside of the guide tube 28 is fixedly connected to a connecting frame 1 33. The end of the propeller 32 away from the motor 2 44 is rotatably connected to the middle of the connecting frame 1 33. An automatic feeding component is arranged inside the guide tube 28.

[0027] The second stirring mechanism is composed of multiple components, and its main function is to stir and optimize the mixed liquid inside the drainage sedimentation tank 3 to promote the sludge sedimentation efficiency. At the same time, by cooperating with the automatic feeding component, the coagulant can be accurately delivered to improve the sewage treatment performance. The guide tube 28, as the core component of the second stirring mechanism, is installed inside the drainage sedimentation tank 3, and its top is fixedly connected to the bottom of the connecting plate 29 to play a stabilizing and fixing role. The guide tube 28 is made of corrosion-resistant stainless steel material, and the diameter is determined according to the actual flow rate. The guide tube 28 can evenly distribute the water flow and avoid turbulence, thereby providing good hydraulic conditions for the sedimentation of sludge particles. The connecting plate 29 is fixedly connected to the inside of the drainage sedimentation tank 3, and a motor 2 44 is fixedly installed inside it, and the motor 2 44 provides a power source for the stirring mechanism. The output end of the motor 2 44 is fixedly connected to the propeller 32 through a connecting shaft. The propeller 32 rotates under the drive of the motor 2 44, and its speed does not exceed 60rpm to prevent the floccules that have been formed from being damaged. The large bubbles in the mixed liquid are broken into tiny bubbles through physical agitation, which weakens the effect of gas buoyancy on the sludge settling performance and enhances the settling performance of sludge particles. The end of the propeller 32 away from the motor 2 44 is connected to the middle of the connecting frame 1 33 inside the guide tube 28 through a rotating mechanism. The connecting frame 1 33 provides stable support and rotation space for the propeller 32. An automatic feeding component is also provided inside the guide tube 28 for accurately feeding coagulants to promote the formation of sludge flocs and accelerate sedimentation. The synergistic effect of the automatic feeding component and the second stirring mechanism further improves the treatment capacity and effluent water quality of the drainage sedimentation tank 3 through the combination of stirring and chemical flocculation. The entire second stirring mechanism realizes efficient stirring of the mixed liquid and accurate feeding of the flocculant through the coordinated work of the guide tube 28, the motor 2 44, the propeller 32 and the automatic feeding component, optimizes the sludge settling environment, and improves the operating efficiency and sewage treatment effect of the drainage sedimentation tank 3. Please refer to the attached Figure 5 , Attachment Figure 6 and attached Figure 7 The automatic feeding assembly includes a hollow column 39, which is fixedly connected to the bottom of the connecting plate 29 through a connecting block. A spring 235 is arranged inside the hollow column 39. A piston 38 is slidably connected inside the hollow column 39. A connecting rod 40 is fixedly connected to one side of the piston 38. The end of the connecting rod 40 away from the piston 38 is fixedly connected to a concave plate 41. A connecting pipe 43 and a hollow tube 37 are fixedly connected to the outside of the hollow column 39 from top to bottom in sequence. The end of the connecting pipe 43 away from the hollow column 39 is fixedly connected to a storage box 34. The bottom of the storage box 34 is fixedly connected to the top of the connecting plate 29. An electromagnetic one-way valve 45 is fixedly connected inside the connecting pipe 43. A one-way valve 236 is fixedly connected inside the hollow tube 37. An elliptical turntable 42 is fixedly connected to the outside of the connecting shaft near the motor 244.

[0028] The automatic feeding assembly is composed of multiple components, and its main function is to achieve accurate feeding of coagulants to promote flocculation and sedimentation of sludge inside the drainage sedimentation tank 3. As the core component of the automatic feeding assembly, the hollow column 39 is fixedly connected to the bottom of the connecting plate 29 through a connecting block to provide support and stability for the overall structure. A spring 235 is arranged inside the hollow column 39, one end of which is fixedly connected to the inner wall of the hollow column 39, and the other end is abutted against the piston 38 to provide elastic restoring force for the reciprocating motion of the piston 38. The piston 38 is slidably connected inside the hollow column 39 to drive the suction and discharge of the coagulant. A connecting rod 40 is fixedly connected to one side of the piston 38, and the end of the connecting rod 40 away from the piston 38 is fixedly connected to a concave plate 41, and the concave plate 41 is designed to work in conjunction with an elliptical turntable 42. The elliptical turntable 42 is fixed to the outside of the motor 2 44 through a connecting shaft. As the motor 2 44 rotates, the elliptical turntable 42 drives the concave plate 41 to move, and then drives the piston 38 to slide back and forth inside the hollow column 39 through the connecting rod 40. The outside of the hollow column 39 is fixedly connected with a connecting pipe 43 and a hollow pipe 37 from top to bottom. The connecting pipe 43 is used for the suction of the coagulant, and its end away from the hollow column 39 is fixedly connected to the storage box 34. The bottom of the storage box 34 is fixed to the top of the connecting plate 29 for storing the coagulant. The interior of the connecting pipe 43 is fixedly connected with an electromagnetic one-way valve 45. The function of the electromagnetic one-way valve 45 is to control the one-way flow of the coagulant, prevent backflow, ensure accurate delivery and convenient timing closure, and realize quantitative delivery of the coagulant. The hollow tube 37 is used to transport the coagulant to the guide tube 28 of the drainage sedimentation tank 3. A one-way valve 36 is fixedly connected inside the hollow tube 37. The function of the one-way valve 36 is to further ensure the one-way flow of the coagulant and prevent the mixed liquid from flowing back into the automatic feeding component. Through the reciprocating motion of the piston 38 and the elastic recovery of the spring 35, the coagulant in the storage box 34 is sucked into the hollow column 39 and accurately transported to the guide tube 28 through the hollow tube 37. The entire automatic feeding process is controlled by the elliptical turntable 42 driven by the motor 44 and cooperates with the electromagnetic one-way valve 45 to ensure the stable and accurate delivery of the coagulant, thereby enhancing the sludge flocculation effect and optimizing the operating performance of the drainage sedimentation tank 3.

[0029] Please refer to the attached Figure 5 , Attachment Figure 6 and attached Figure 7 The drainage mechanism includes an overflow trough 30 and an outlet pipe 31. The overflow trough 30 is fixedly connected to the inner wall of the drainage sedimentation tank 3. The outlet pipe 31 is fixedly connected to the outside of the drainage sedimentation tank 3 and is on the same horizontal plane as the overflow trough 30. A filtering component is arranged inside the outlet pipe 31.

[0030] The drainage mechanism is composed of multiple components, and its main function is to achieve effective discharge of clarified supernatant in the drainage sedimentation tank 3, and at the same time further intercept suspended particles and potential hazardous substances through the filtering component to ensure that the effluent water quality meets the standard. The overflow trough 30 is fixedly connected to the inner wall of the drainage sedimentation tank 3, and its design height is maintained at the same horizontal plane as the outlet pipe 31, ensuring that the clarified supernatant naturally overflows into the overflow trough 30 by gravity, avoiding the sedimentation effect affected by excessive flow rate or turbulence. The outlet pipe 31 is fixedly connected to the outside of the drainage sedimentation tank 3, and is directly connected to the overflow trough 30, which is used to guide the supernatant after overflow out of the drainage sedimentation tank 3 and enter the subsequent processing link. The outlet pipe 31 is provided with a filtering component inside to further intercept fine suspended particles or potential harmful substances in the liquid to ensure the purity of the discharged liquid. The filter assembly includes a filter plate 46 installed inside the outlet pipe 31. The filter plate 46, as the main filter component, can effectively intercept solid impurities to ensure that the clear liquid meets the discharge standards, while preventing particulate matter from entering the downstream pipeline or treatment unit, reducing the burden of subsequent treatment. The structural design of the drainage mechanism is simple and efficient. Through the synergistic effect of the overflow tank 30 and the outlet pipe 31, combined with the interception function of the filter assembly, it not only effectively improves the discharge quality of the supernatant, but also ensures the stable operation of the system and the final treatment effect of the clear liquid. Please see attached Figure 5 , Attachment Figure 6 and attached Figure 7 The filter assembly includes a filter plate 46, which is fixedly connected to the inside of the water outlet pipe 31. A connecting frame 48 is fixedly connected to the inside of the water outlet pipe 31. An impeller 49 is rotatably connected to the middle of the connecting frame 48. A connecting column 47 is fixedly connected to the side of the impeller 49 away from the connecting frame 48. An end of the connecting column 47 away from the impeller 49 is fixedly connected to a hollow shell 51. A plurality of springs 52 are arranged inside the hollow shell 51. A limiting plate 53 is slidably connected to the inside of the hollow shell 51. A brush 50 is fixedly connected to one side of the limiting plate 53.

[0031] The filter assembly is composed of multiple components, and its main function is to efficiently filter the clear liquid discharged from the drainage sedimentation tank 3 to ensure that the liquid does not contain suspended particles or potentially harmful substances. At the same time, the filter plate 46 is prevented from being blocked by the automatic cleaning function to maintain the long-term stable operation of the system. As the core component of the filter assembly, the filter plate 46 is fixedly connected to the inside of the outlet pipe 31 to intercept suspended matter and particulate matter in the clear liquid to ensure that the outlet water quality meets the standard. The cleaning function of the filter plate 46 is achieved through the synergistic effect of the connecting frame 2 48 and the impeller 49. The connecting frame 2 48 is fixedly installed inside the outlet pipe 31 to provide stable support for the impeller 49. The middle part of the impeller 49 is rotatably connected to the connecting frame 2 48. When the clear liquid flows through the outlet pipe 31, it will impact the impeller 49 to rotate it. The rotation of the impeller 49 provides power for the self-cleaning function of the filter assembly. The side of the impeller 49 away from the connecting frame 2 48 is fixedly connected to the connecting column 47, and the end of the connecting column 47 away from the impeller 49 is fixedly connected to the hollow shell 2 51. A plurality of springs 3 52 are arranged inside the hollow shell 2 51. The function of these springs is to provide elastic restoring force to ensure that the cleaning component can maintain appropriate contact pressure with the filter plate 46. The hollow shell 2 51 is slidably connected to the limit plate 2 53. One side of the limit plate 2 53 is fixedly connected to the brush 50. The brush 50 fits tightly to the surface of the filter plate 46 and continuously cleans the filter plate 46 through the friction generated by the rotation. When the clear liquid flows through the outlet pipe 31 and drives the impeller 49 to rotate, the connecting column 47 drives the hollow shell 2 51 to rotate synchronously. The brush 50 is in close contact with the surface of the filter plate 46 under the action of the spring 3 52, and cleans the surface of the filter plate 46 to ensure that the filter plate 46 always maintains good filtering performance and prevents particulate matter from clogging the filter plate 46 and affecting the filtering effect. The entire filter assembly realizes the functions of filtering and automatic cleaning through the coordinated action of the filter plate 46, the impeller 49, the brush 50 and related transmission components. The filter plate 46 efficiently intercepts suspended particles, and the brush 50's cleaning function prolongs the service life of the filter assembly, ensuring the continuity and stability of the clear liquid discharge. This design effectively improves the filtration efficiency of the drainage sedimentation tank 3 and the operating reliability of the system. Please see attached Figure 1 - Attachment Figure 3An aeration device 10 is arranged outside the UASB anaerobic reactor 7, and an output end of the aeration device 10 is fixedly connected with an air inlet pipe 8, and one end of the air inlet pipe 8 away from the aeration device 10 is fixedly connected to the outside of the UASB anaerobic reactor 7, and a one-way valve 9 is fixedly connected inside the air inlet pipe 8. The top of the UASB anaerobic reactor 7 is connected to a gas collecting tank 11 through a hose, and a single screw pump 1 is arranged outside the drainage sedimentation tank 3, and an input end of the single screw pump 1 is fixedly connected with a mud discharge pipe 2, and one end of the mud discharge pipe 2 away from the single screw pump 1 is fixedly connected to the outside of the drainage sedimentation tank 3, and an output end of the single screw pump 1 is fixedly connected with a mud discharge pipe 2 4, and one end of the mud discharge pipe 2 4 away from the single screw pump 1 is fixedly connected to the outside of the UASB anaerobic reactor 7, a sunshade 14 is arranged directly above the drainage sedimentation tank 3, and a heating device 16 is arranged on the inner bottom wall of the UASB anaerobic reactor 7.

[0032] The outside of the UASB anaerobic reactor 7 is provided with a plurality of functional components to improve the operation efficiency of the equipment and enhance the adaptability of the system. The aeration device 10 is fixedly installed on the outside of the UASB anaerobic reactor 7, and its output end is connected to the UASB anaerobic reactor 7 through the air inlet pipe 8. The function of the aeration device 10 is to provide an appropriate amount of air into the reactor, remove the dissolved oxygen in the sewage in advance, thereby reducing the oxygen consumption pressure inside the UASB anaerobic reactor 7, and indirectly improving the methane production activity of the microorganisms. A one-way valve 9 is fixedly connected inside the air inlet pipe 8. The function of the one-way valve 9 is to ensure the one-way flow of the air flow, prevent the reverse gas from entering the aeration device 10, and protect the normal operation of the equipment. The top of the UASB anaerobic reactor 7 is connected to a gas collecting tank 11 through a hose. The function of the gas collecting tank 11 is to collect and store the biogas generated in the reactor, thereby realizing the recovery and reuse of biogas resources and avoiding energy waste. The centralized storage of biogas can also facilitate subsequent treatment or direct use. A single screw pump 1 is installed outside the drainage sedimentation tank 3 for the reflux and transmission of concentrated sludge. The input end of the single screw pump 1 is connected to the drainage sedimentation tank 3 through the mud discharge pipe 1 2. The function of the mud discharge pipe 1 2 is to transport the concentrated sludge at the bottom of the sedimentation tank to the single screw pump 1. The output end of the single screw pump 1 is connected to the UASB anaerobic reactor 7 through the mud discharge pipe 2 4. The function of the mud discharge pipe 2 4 is to return the concentrated sludge to the UASB anaerobic reactor 7, further improving the activity of anaerobic microorganisms in the reactor, while realizing the recycling of sludge and improving resource utilization. A sunshade 14 is set directly above the drainage sedimentation tank 3. The function of the sunshade 14 is to reduce the evaporation loss of water, especially in hot or dry areas, which can effectively reduce the operating cost of the system, while protecting the equipment from the direct impact of the external environment and extending the service life of the equipment. The inner bottom wall of the UASB anaerobic reactor 7 is installed with a heating device 16. The heating device 16 is used to heat the sludge and water inside the reactor under low temperature conditions. By accurately controlling the reaction temperature, the optimal activity level of the microorganisms is ensured, and the stability and efficiency of the system operation throughout the year are guaranteed. Through the design of the above structure, the aeration device 10, the gas collecting tank 11, the single screw pump 1, the sunshade 14 and the heating device 16 work together, which not only improves the sewage treatment efficiency of the system, but also realizes energy conservation and maximum resource utilization through sludge recycling and biogas recovery, and at the same time adapts to the operation requirements under different environmental conditions, and enhances the practicality and stability of the equipment. Please refer to the attached Figure 3 The outer side of the inclined turntable 22 is slidably connected between the upper roller 19 and the lower roller 20, the scraper 27 is in contact with the inner wall of the UASB anaerobic reactor 7 on the side away from the limit plate 25, one end of the spring 24 is fixedly connected to the side of the limit plate 25 away from the scraper 27, and the other end of the spring 24 is in contact with the inner wall of the hollow shell 26, and the outer side of the scraper 27 is slidably connected to the inside of the hollow shell 26.

[0033] The outer side of the inclined turntable 22 is slidably connected between the upper roller 19 and the lower roller 20, and its design is mainly used to cooperate with the up and down movement of the sliding column 15, so that the stirring mechanism can operate stably and efficiently. The inclined turntable 22 ensures that the sliding column 15 can move up and down when the square rod 23 rotates through the guidance of the roller, thereby driving the main stirring rod 17 and the auxiliary stirring rod 21 to perform stirring operations. The side of the scraper 27 away from the limit plate 25 is close to the inner wall of the UASB anaerobic reactor 7, which is used to scrape off the sludge attached to the inner wall of the reactor and maintain the cleanliness of the inner wall. The scraper 27 is tightly abutted against the inner wall of the reactor through the elastic force provided by the spring 24. One end of the spring 24 is fixedly connected to the side of the limit plate 25 away from the scraper 27, and the other end is abutted against the inner wall of the hollow shell 26. The elastic action of the spring 24 ensures that the scraper 27 can flexibly adjust the contact pressure with the inner wall during the cleaning process, thereby adapting to the curvature or shape change of the inner wall, and avoiding damage to the scraper 27 or the inner wall. The outer side of the scraper 27 is slidably connected to the inside of the hollow shell 26. The sliding design enables the scraper 27 to flexibly move along the inner wall under the guidance of the hollow shell 26, further improving the cleaning efficiency. Through the synergistic effect of the limit plate 25, the spring 24 and the hollow shell 26, the scraper 27 can stably and efficiently complete the cleaning work of the inner wall, preventing the sludge accumulation from affecting the operating efficiency of the UASB anaerobic reactor 7. Please refer to the attached Figure 6 The outer side of the elliptical turntable 42 abuts against the concave plate 41 and is slidably connected to the surface of the concave plate 41, one end of the spring 2 35 is fixedly connected to the side of the piston 38 away from the connecting rod 40, and the other end of the spring 2 35 abuts against the inner wall of the hollow column 39, one end of the spring 3 52 is fixedly connected to the side of the limit plate 2 53 away from the brush 50, and the other end of the spring 3 52 abuts against the inner wall of the hollow shell 2 51, and the brush 50 abuts against the surface of the filter plate 46.

[0034] The outer side of the elliptical turntable 42 abuts against the concave plate 41 and is slidably connected to the surface of the concave plate 41. The rotation of the elliptical turntable 42 cooperates with the spring 2 35 to drive the concave plate 41 to reciprocate, thereby driving the piston 38 of the entire automatic feeding assembly to complete the reciprocating motion. The elliptical turntable 42 is powered by the motor 2 44. The irregular elliptical design of the turntable ensures that the concave plate 41 can slide smoothly and periodically during the movement, thereby controlling the precise delivery of the coagulant. One end of the spring 2 35 is fixedly connected to the side of the piston 38 away from the connecting rod 40, and the other end abuts against the inner wall of the hollow column 39. The function of the spring 2 35 is to provide a rebound force so that the piston 38 can quickly return to its position after completing a feeding action, while avoiding the displacement or stagnation of the piston 38 caused by external force, thereby ensuring the stability and continuity of the feeding action. One end of the spring three 52 is fixedly connected to the side of the limit plate two 53 away from the brush 50, and the other end is in contact with the inner wall of the hollow shell two 51. The function of the spring three 52 is to provide elastic support for the limit plate two 53 so that the brush 50 can always be in close contact with the surface of the filter plate 46. The design of the brush 50 is close to the surface of the filter plate 46. Through the pressure provided by the spring three 52, the brush 50 can efficiently remove particles or impurities that may be attached to the surface of the filter plate 46 during the rotation process, prevent the filter plate 46 from being blocked, and ensure the stability of the filtering effect. The brush 50 is in contact with the surface of the filter plate 46, and the brush 50 is driven to perform a cleaning operation by the rotation of the connected impeller 49. When the liquid flows in the filter assembly, the impeller 49 is impacted by the water flow and starts to rotate, driving the connecting column 47 and the hollow shell two 51 to rotate synchronously, thereby driving the brush 50 to clean the surface of the filter plate 46. The entire design ensures the stable and reliable functions of the feeding and filtering components through the sliding drive of the elliptical turntable 42 and the elastic support of the spring 2 35 and the spring 3 52, improves the efficiency of the system operation and the cleaning and maintenance capabilities, and ensures the long-term and efficient operation of the drainage sedimentation tank 3. Working principle: First, the sewage enters the UASB anaerobic reactor 7, and the aeration device 10 is started at the same time. The device can remove part of the dissolved oxygen in the sewage in advance, reduce the oxygen consumption pressure inside the UASB anaerobic reactor 7, and indirectly improve its methane production activity. When the temperature is low in winter, the heating device 16 in the UASB anaerobic reactor 7 will be started, and the stability of the system operation throughout the year will be guaranteed by accurately controlling the reaction temperature. Then the motor 12 is started, which drives the square rod 23 to rotate, and the sliding column 15 outside the square rod 23 rotates accordingly. Under the cooperation of the inclined turntable 22, the upper roller 19, and the lower roller 20, the sliding column 15 slides up and down along the square rod 23, thereby driving the main stirring rod 17 and the auxiliary stirring rod 21 to stir up and down inside the UASB anaerobic reactor 7, and fully mix the sludge and water inside the UASB anaerobic reactor 7. At the same time, under the action of the spring 24, the scraper 27 scrapes off the sludge attached to the inner wall of the UASB anaerobic reactor 7 through the reciprocating sliding inside the hollow shell 26. The flexible movement design of the scraper 27 ensures higher working efficiency. Microorganisms decompose organic matter in sewage under anaerobic conditions and convert it into biogas, and the generated biogas is transported to the gas collecting tank 11 for storage to avoid energy waste.

[0035] After the preliminary treatment of the UASB anaerobic reactor 7, the mixed liquid containing trace suspended matter and incompletely settled sludge is transported to the guide tube 28 of the drainage sedimentation tank 3 under the action of the screw pump 5. The guide tube 28 is used to evenly distribute the water flow and avoid turbulence. At the same time, the motor 2 44 is started to drive the propeller 32 to rotate, and the large bubbles in the water flow are broken into tiny bubbles through physical stirring, thereby weakening the buoyancy of the gas and further enhancing the sedimentation performance of the sludge particles. In this process, the elliptical turntable 42 rotates with the motor, and the concave plate 41 and the connecting rod 40 plus the spring 2 35 work together to make the piston 38 reciprocate in the hollow column 39, so that the coagulant in the storage box 34 is sucked into the hollow column 39 through the connecting pipe 43, and accurately transported to the guide tube 28 through the hollow pipe 37. Subsequently, the electromagnetic one-way valve 45 is automatically closed to complete the precise delivery of the coagulant. Under the action of coagulants, through charge neutralization and bridging effects, suspended particles and sludge fine particles are caused to condense into larger flocs, accelerating their sedimentation to the bottom and forming a dense sludge layer.

[0036] The clarified supernatant enters the outlet pipe 31 through the overflow trough 30 of the drainage sedimentation tank 3, and is discharged after passing through the filter plate 46. The filter plate 46 can effectively intercept potential hazardous substances to ensure that the water quality of the clear liquid meets the standards. In this process, the clear liquid impacts the impeller 49 when it flows, causing the impeller 49 to rotate, driving the connected hollow shell 2 51 to rotate. Under the action of the spring 3 52 inside the hollow shell 2 51, the brush 50 is in close contact with the filter plate 46, and the surface of the filter plate 46 is cleaned to prevent clogging. The concentrated sludge that settles to the bottom will be sent back to the UASB anaerobic reactor 7 through the single screw pump 1 for recycling, which further enhances the activity of anaerobic microorganisms, and can also be used as a by-product for dehydration.

[0037] During the operation of the whole system, the optimized design of the guide tube 28 ensures efficient sedimentation performance, avoids the destruction of flocs, and ensures that the effluent water quality is stable and up to standard. The device has a simple structure design, low maintenance cost, and strong practicality and promotion value.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water treatment device for solving the UASB sludge problem, comprising a drainage sedimentation tank (3) and a UASB anaerobic reactor (7), characterized in that: A first stirring mechanism is arranged inside the UASB anaerobic reactor (7); a screw pump (5) is arranged between the drainage sedimentation tank (3) and the UASB anaerobic reactor (7); an input end of the screw pump (5) is fixedly connected to a sludge water pipe (6); an end of the sludge water pipe (6) away from the screw pump (5) is fixedly connected to the outside of the UASB anaerobic reactor (7); an output end of the screw pump (5) is fixedly connected to a sludge water pipe (13); an end of the sludge water pipe (13) away from the screw pump (5) is fixedly connected to the outside of the drainage sedimentation tank (3); and a second stirring mechanism and a drainage mechanism are arranged inside the drainage sedimentation tank (3).

2. A water treatment device for solving the UASB mud leakage problem according to claim 1, characterized in that: The first stirring mechanism comprises a motor 1 (12), the motor 1 (12) being fixedly connected to the top of the UASB anaerobic reactor (7), a square rod (23) being fixedly connected to the output end of the motor 1 (12), a sliding column (15) being slidably connected to the outside of the square rod (23), an inclined turntable (22) and a plurality of main stirring rods (17) being fixedly connected to the outside of the sliding column (15) in sequence from top to bottom, a plurality of auxiliary stirring rods (21) being fixedly connected between the upper and lower main stirring rods (17), a cleaning assembly being fixedly connected to one end of the main stirring rod (17) away from the sliding column (15), a fixed rod (18) being fixedly connected to the inner top wall of the UASB anaerobic reactor (7), an upper roller (19) and a lower roller (20) being fixedly connected to the outside of the fixed rod (18) in sequence from top to bottom.

3. A water treatment device for solving the UASB mud leakage problem according to claim 2, characterized in that: The cleaning assembly comprises a hollow shell (26), one side of the hollow shell (26) being fixedly connected to an end of the main stirring rod (17) away from the sliding column (15), a plurality of springs (24) being arranged inside the hollow shell (26), a limit plate (25) being slidably connected inside the hollow shell (26), and a scraper (27) being fixedly connected to one side of the limit plate (25).

4. A water treatment device for solving the UASB mud leakage problem according to claim 1, characterized in that: The second stirring mechanism comprises a guide tube (28) and a connecting plate (29), wherein the connecting plate (29) is fixedly connected to the inside of the drainage sedimentation tank (3), the top of the guide tube (28) is fixedly connected to the bottom of the connecting plate (29), a second motor (44) is fixedly connected to the inside of the connecting plate (29), an output end of the second motor (44) is fixedly connected to a propeller (32) via a connecting shaft, a first connecting frame (33) is fixedly connected to the inside of the guide tube (28), an end of the propeller (32) away from the second motor (44) is rotatably connected to the middle of the first connecting frame (33), and an automatic feeding assembly is arranged inside the guide tube (28).

5. A water treatment device for solving the UASB mud leakage problem according to claim 4, characterized in that: The automatic feeding assembly comprises a hollow column (39), the hollow column (39) being fixedly connected to the bottom of the connecting plate (29) via a connecting block, a spring 2 (35) being arranged inside the hollow column (39), a piston (38) being slidably connected inside the hollow column (39), a connecting rod (40) being fixedly connected to one side of the piston (38), a concave plate (41) being fixedly connected to one end of the connecting rod (40) away from the piston (38), and the outer side of the hollow column (39) being arranged in order from top to bottom. A connecting pipe (43) and a hollow pipe (37) are fixedly connected; one end of the connecting pipe (43) away from the hollow column (39) is fixedly connected to a storage box (34); the bottom of the storage box (34) is fixedly connected to the top of the connecting plate (29); an electromagnetic one-way valve (45) is fixedly connected inside the connecting pipe (43); a second one-way valve (36) is fixedly connected inside the hollow pipe (37); and an elliptical rotating disk (42) is fixedly connected to the outside of the second motor (44) near the connecting shaft.

6. A water treatment device for solving the UASB mud leakage problem according to claim 5, characterized in that: The drainage mechanism comprises an overflow trough (30) and a water outlet pipe (31); the overflow trough (30) is fixedly connected to the inner wall of the drainage sedimentation tank (3); the water outlet pipe (31) is fixedly connected to the outside of the drainage sedimentation tank (3) and is on the same horizontal plane as the overflow trough (30); and a filter assembly is arranged inside the water outlet pipe (31).

7. A water treatment device for solving the UASB mud leakage problem according to claim 6, characterized in that: The filter assembly comprises a filter plate (46), the filter plate (46) being fixedly connected to the inside of the water outlet pipe (31), a second connecting frame (48) being fixedly connected to the inside of the water outlet pipe (31), an impeller (49) being rotatably connected to the middle of the second connecting frame (48), a connecting column (47) being fixedly connected to the side of the impeller (49) away from the second connecting frame (48), a hollow shell (51) being fixedly connected to the end of the connecting column (47) away from the impeller (49), a plurality of springs (52) being arranged inside the second hollow shell (51), a limiting plate (53) being slidably connected to the inside of the second hollow shell (51), and a brush (50) being fixedly connected to one side of the limiting plate (53).

8. A water treatment device for solving the UASB mud leakage problem according to claim 1, characterized in that: An aeration device (10) is arranged outside the UASB anaerobic reactor (7); an output end of the aeration device (10) is fixedly connected to an air inlet pipe (8); an end of the air inlet pipe (8) away from the aeration device (10) is fixedly connected to the outside of the UASB anaerobic reactor (7); a one-way valve (9) is fixedly connected inside the air inlet pipe (8); a gas collecting tank (11) is connected to the top of the UASB anaerobic reactor (7) via a hose; a single screw pump (1) is arranged outside the drainage sedimentation tank (3); and the single screw pump The input end of the single screw pump (1) is fixedly connected to a sludge discharge pipe (2), and the end of the sludge discharge pipe (2) away from the single screw pump (1) is fixedly connected to the outside of the drainage sedimentation tank (3). The output end of the single screw pump (1) is fixedly connected to a sludge discharge pipe (4), and the end of the sludge discharge pipe (4) away from the single screw pump (1) is fixedly connected to the outside of the UASB anaerobic reactor (7). A sunshade (14) is arranged directly above the drainage sedimentation tank (3), and a heating device (16) is arranged on the inner bottom wall of the UASB anaerobic reactor (7).

9. A water treatment device for solving the UASB mud leakage problem according to claim 3, characterized in that: The outer side of the inclined rotating disk (22) is slidably connected between the upper roller (19) and the lower roller (20); the side of the scraper (27) away from the limiting plate (25) abuts against the inner wall of the UASB anaerobic reactor (7); one end of the spring (24) is fixedly connected to the side of the limiting plate (25) away from the scraper (27); the other end of the spring (24) abuts against the inner wall of the hollow shell (26); and the outer side of the scraper (27) is slidably connected to the inside of the hollow shell (26).

10. A water treatment device for solving the UASB mud leakage problem according to claim 7, characterized in that: The outer side of the elliptical rotating disk (42) is in contact with the concave plate (41) and is slidably connected to the surface of the concave plate (41); one end of the spring 2 (35) is fixedly connected to the side of the piston (38) away from the connecting rod (40); the other end of the spring 2 (35) is in contact with the inner wall of the hollow column (39); one end of the spring 3 (52) is fixedly connected to the side of the limit plate 2 (53) away from the brush (50); the other end of the spring 3 (52) is in contact with the inner wall of the hollow shell 2 (51); and the brush (50) is in contact with the surface of the filter plate (46).

Images