Multistage deodorization and purification equipment for urban and rural sewage treatment

Abstract

The present application relates to sewage multi-stage treatment technical field, specifically to a kind of multi-stage deodorization purification equipment for urban and rural sewage treatment, including air flotation treatment pool and waste residue pool, the waste residue pool is fixed on the outer lateral wall of air flotation treatment pool, the air flotation treatment pool includes water tank, the inner chamber bottom of water tank is provided with sludge discharge structure, the inner top of water tank is provided with skimming structure, skimming structure includes two symmetric slidingly arranged sealing sliding plate in the inner wall of water tank, the linkage of servo motor, half gear one, half gear two and other components is realized in the present application, sludge collecting pipe, sludge collecting plate accurate mud collection and annular cleaning cotton automatic brush wash skimming pipe are realized, cooperate with electric push rod one, electric push rod two flexible position sludge discharge, through inclined tube sedimentation tank, sand filter tank multi-stage purification, deodorization and impurity removal effect is good, also can prevent blockage, reduce water loss, waste residue is sealed and discharged into waste residue pool without secondary pollution, adapt to urban and rural sewage treatment, operation and maintenance are convenient and energy saving and environment friendly.

Description

Technical Field

[0001] This invention relates to the field of multi-stage wastewater treatment technology, specifically a multi-stage deodorization and purification device for urban and rural wastewater treatment. Background Technology

[0002] Currently, the deodorization and purification of urban and rural sewage treatment usually adopts a combination of "air flotation, sedimentation and filtration". The basic principle is to introduce microbubbles into the sewage to make suspended solids form scum, and then use equipment such as a scum scraper to remove it. The sedimentation tank further removes fine particles, and finally the residual impurities and some odor-causing substances are adsorbed by sand filtration and other processes to achieve purification and deodorization. However, existing technologies still have significant drawbacks in operation: traditional skimming equipment mostly uses fixed scrapers or suction pipes, which cannot dynamically adapt to water level fluctuations, often resulting in incomplete collection of scum or low skimming efficiency; sludge discharge mostly relies on bottom valves or pumps, which easily leads to incomplete sludge discharge, large loss of clean water during sludge discharge, and the sludge discharge pipeline and skimming pipeline are easily blocked by dirt adhesion, requiring frequent shutdowns for manual cleaning, resulting in high maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-stage deodorization and purification device for urban and rural sewage treatment, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage deodorization and purification device for urban and rural sewage treatment, comprising an air flotation treatment tank and a waste residue tank, wherein the waste residue tank is fixedly connected to the outer wall of the air flotation treatment tank, the air flotation treatment tank includes a water tank, the bottom of the inner cavity of the water tank is provided with a sludge discharge structure, and the top of the water tank is provided with a skimming structure. The skimming structure includes two symmetrically sliding sealed sliding plates disposed on the inner wall of the water tank. Each of the sealed sliding plates is rotatably connected to a ball cage universal joint, and a skimming pipe is slidably connected between the two ball cage universal joints. The outer wall of the skimming pipe is slidably connected to a positioning sleeve, the inner wall of the positioning sleeve is slidably connected to an annular cleaning cotton, the lower end of the positioning sleeve is fixedly connected to a bottom shell, and the cavity of the bottom shell is provided with a rotating structure that can drive the annular cleaning cotton to slide. The sludge discharge structure includes a tank bottom, which is fixedly connected to the bottom of the inner cavity of the water tank. A sludge-collecting pipe is movably connected to the upper surface of the tank bottom. One end of the sludge-collecting pipe has a back cavity. A half-gear is rotatably connected inside the back cavity. A coaxial central pipe is fixedly connected inside the cavity of the sludge-collecting pipe. A central rotating pipe is rotatably connected inside the cavity of the central pipe. A second half-gear is fixedly connected to one end of the central rotating pipe, and the second half-gear and the first half-gear rotate synchronously. A rack meshes with the outer wall of the first half-gear. An adjustable slide rod is fixedly connected to the upper end of the rack, and the other end of the adjustable slide rod is fixedly connected to the rotating structure. A slag-gathering plate is fixedly connected to the outer wall of the central rotating pipe, and the slag-gathering plate is fixedly connected to the slag-gathering pipe.

[0005] Preferred, A hexagonal groove is provided on the side of the first half gear near the second half gear. A hexagonal slider is fixedly connected to the side of the second half gear near the first half gear, and the hexagonal slider and the hexagonal groove are slidably connected. A spring is also fixedly connected between the first half gear and the second half gear. A piston disc is slidably connected to one end of the slag collection pipe, and the piston disc is fixedly connected to the second half gear. Two electric actuators are symmetrically installed on the outer wall of the water tank. A push plate is fixedly connected to the output end of the electric actuator, and the upper surface of the push plate abuts against the lower end of the sealing slide plate.

[0006] Preferred, A sliding groove is provided at one end of the back cavity near the central tube. A sliding plate is slidably connected inside the sliding groove. A reset rod is installed between the sliding plate and the sliding groove. A push column is fixedly connected to one side of the sliding plate. A push bar is fixedly connected to the outer wall inside the back cavity of the central rotating tube, and the push bar can abut against the push column.

[0007] Preferably, a liquid storage shell is fixed to the outer wall of the water tank, and a transversely sliding external sealing plate is provided inside the cavity of the liquid storage shell. Several elastic rods are fixed between the external sealing plate and the water tank, and the external sealing plate can abut against the piston disc. A flexible hose is fixed to the lower end of the liquid storage shell, and the other end of the flexible hose is sealed and connected to one end of the skimming pipe. A protective cylinder is fixed to the upper surface of the slag collection pipe, and the protective cylinder is slidably connected to the rack and pinion. A handle is fixed to the upper end of the adjustable slide rod.

[0008] Preferably, the rotating structure includes a T-shaped rod, which is disposed inside the bottom shell and extends to the lower surface of the bottom shell. A connecting plate is fixedly connected to the lower end of the T-shaped rod, and the connecting plate is fixedly connected to the side wall of the upper end of the adjustable slide rod. Two symmetrically positioned sliding cylinders are provided at both ends of the T-shaped rod. A connecting rod is slidably connected inside the cavity of each sliding cylinder, and the positions of the connecting rods in the two sliding cylinders are staggered. A turntable is fixedly connected to the end of each of the two connecting rods away from the T-shaped rod, and the two turntables are positioned opposite each other. A positioning post is fixedly connected to the end of each turntable away from the connecting rod. A toothed cylinder wheel is rotatably connected to the outer wall of the positioning post, and the outer wall of the toothed cylinder wheel abuts against the annular cleaning cotton.

[0009] Preferably, a coupling one is fixedly connected to the side of the gear cylinder away from the turntable, a spring one is fixedly connected to the outer wall of the coupling one, a square rod is fixedly connected to the end of the positioning pin away from the turntable, a coupling two is slidably connected to the outer wall of the square rod, and the coupling two meshes with the coupling one, a spring two is fixedly connected to the end of the coupling two away from the coupling one, and the spring two abuts against the inner wall of the bottom shell, and two symmetrically positioned sealing shells are also sealed and rotatedly connected to the outer wall of the gear cylinder.

[0010] Preferably, the end of the central tube away from the second half gear is rotatably connected to a drive main shell, a connecting plate is fixedly connected to the outer wall of the slag-gathering tube near the drive main shell, a spring three is fixedly connected between the connecting plate and the drive main shell, a servo motor is screwed into the cavity of the drive main shell, a drive gear is fixedly connected to the output end of the servo motor, a driven gear meshes with one side of the drive gear, and the driven gear is coaxially fixed to the central rotating tube, and an electric push rod two is fixedly connected to the outer wall of the air flotation treatment tank, and the output end of the electric push rod two is fixedly connected to the drive main shell.

[0011] Preferably, an inclined tube sedimentation tank is provided on one side of the air flotation treatment tank, and the upper sidewall of the inclined tube sedimentation tank is connected to the air flotation treatment tank. A filter overflow tank is provided on the side of the inclined tube sedimentation tank away from the air flotation treatment tank, and the filter overflow tank is connected to the inclined tube sedimentation tank. A water pump assembly is connected to the end of the filter overflow tank away from the inclined tube sedimentation tank. A sand filter tank is connected to the end of the water pump assembly away from the filter overflow tank through a conduit. A lifting platform is also provided on one side of the air flotation treatment tank. Two skimming devices are provided at the upper opening and the bottom of the air flotation treatment tank.

[0012] Compared with the prior art, the beneficial effects of the present invention are: The servo motor, drive gear, driven gear, and other components work in conjunction with the central rotating tube, push bar, push column, and reset rod to achieve periodic and precise sludge collection by rotating the sludge collection pipe and plate. Combined with half-gear one, half-gear two, rack, adjustable slide bar, and internal components such as the T-shaped rod, turntable, and toothed cylinder wheel, the annular cleaning cotton thoroughly cleans the outer wall of the sludge skimming pipe. The electric push rod one, sealing slide plate, and ball cage universal joint allow for flexible adjustment of the sludge skimming pipe height to adapt to different water levels, with the sludge skimming pipe tilting upwards for wastewater discharge. It can also achieve self-flushing of mud and water to prevent clogging by using piston disc, external sealing plate, liquid storage shell and hose. Electric actuator 2 can drive the main shell to complete the discharge of sludge with low water content, which greatly reduces the loss of clean water and improves resource utilization efficiency. The upper skimming device assists in sludge collection and the lower skimming device scrapes the bottom sludge. Together with inclined tube sedimentation tank, filter overflow tank, water pump assembly and sand filter tank, it can achieve multi-stage deep purification of sewage, effectively remove suspended impurities and odors. Waste residue is sealed and discharged into waste residue tank through sewage outlet to avoid secondary pollution. Attached Figure Description

[0013] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the air flotation treatment tank of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the air flotation treatment tank of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of the sliding cylinder and connecting rod of the present invention; Figure 6 This is a cross-sectional view of the liquid storage shell of the present invention; Figure 7 This is a schematic diagram of the structure of the slag-collecting plate of the present invention; Figure 8 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 9 This is a structural exploded view of the first and second half-gears of the present invention; Figure 10 This is a schematic diagram of the internal structure of the drive housing of the present invention; Figure 11 This is a cross-sectional view of the liquid storage shell of the present invention.

[0014] Explanation of reference numerals in the attached figures: 1. Air flotation treatment tank; 2. Water tank; 3. Skimming pipe; 4. Tank bottom; 5. Sludge collection pipe; 6. Central pipe; 7. Sludge collection plate; 8. Central rotating pipe; 9. Half gear one; 10. Half gear two; 11. Hexagonal slider; 12. Spring one; 13. Slide groove; 14. Slide plate; 15. Reset rod; 16. Push column; 17. Push bar; 18. Back cavity; 19. Hexagonal slide groove; 21. Rack; 22. Protective cylinder; 23. Adjustable slide rod; 24. Ball cage universal joint; 25. Handle; 26. Connecting plate; 27. T-shaped rod; 28. Sliding cylinder; 29. ​​Turntable; 30. Connecting rod; 31. Gear cylinder; 32. Positioning column; 33. Coupling one; 34. Coupling two; 35. Spring 1; 36. Spring 2; 37. Square rod; 38. Sealing shell; 39. Annular cleaning cotton; 40. Positioning sleeve; 41. Bottom shell; 42. Piston disc; 43. External sealing plate; 44. Elastic rod; 45. Liquid storage shell; 46. Hose; 47. Sewage outlet; 48. Sealing slide plate; 49. Electric actuator 1; 50. Push plate; 51. Electric actuator 2; 52. Drive main shell; 53. Driven gear; 54. Drive gear; 55. Servo motor; 56. Connecting plate; 57. Spring 3; 58. Lifting platform; 59. Waste residue pool; 60. Inclined tube sedimentation tank; 61. Filter overflow pool; 62. Water pump assembly; 63. Sand filter tank; 64. Skimming equipment. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-11 The present invention provides a technical solution: a multi-stage deodorization and purification device for urban and rural sewage treatment, including an air flotation treatment tank 1 and a waste residue tank 59. The waste residue tank 59 is fixed to the outer wall of the air flotation treatment tank 1. The air flotation treatment tank 1 includes a water tank 2. The bottom of the inner cavity of the water tank 2 is provided with a sludge discharge structure, and the top of the water tank 2 is provided with a skimming structure. The skimming structure includes two symmetrically sliding sealed sliding plates 48 disposed on the inner wall of the water tank 2. Each sealed sliding plate 48 is rotatably connected to a ball cage universal joint 24, and a skimming pipe 3 is slidably connected between the two ball cage universal joints 24. A positioning sleeve 40 is slidably connected to the outer wall of the skimming pipe 3, and an annular cleaning cotton 39 is slidably connected to the inner wall of the positioning sleeve 40. A bottom shell 41 is fixed to the lower end of the positioning sleeve 40, and a rotating structure is provided in the cavity of the bottom shell 41 to drive the annular cleaning cotton 39 to slide. The sludge discharge structure includes a tank bottom 4, which is fixedly connected to the bottom of the inner cavity of the water tank 2. A sludge collection pipe 5 is movably connected to the upper surface of the tank bottom 4. One end of the sludge collection pipe 5 has a back cavity 18. A half gear 9 is rotatably connected inside the back cavity 18. A coaxial central pipe 6 is fixedly connected inside the cavity of the sludge collection pipe 5. A central rotating pipe 8 is rotatably connected inside the cavity of the central pipe 6. A half gear 10 is fixedly connected to one end of the central rotating pipe 8, and the half gear 10 and the half gear 9 rotate synchronously. A rack 21 meshes with the outer wall of the half gear 9. An adjustable slide rod 23 is fixedly connected to the upper end of the rack 21, and the other end of the adjustable slide rod 23 is fixedly connected to the rotating structure. A slag-gathering plate 7 is fixedly connected to the outer wall of the central rotating pipe 8, and the slag-gathering plate 7 is fixedly connected to the slag-gathering pipe 5.

[0017] In this embodiment, an inclined tube sedimentation tank 60 is provided on one side of the air flotation treatment tank 1, and the upper sidewall of the inclined tube sedimentation tank 60 is connected to the air flotation treatment tank 1. A filter overflow tank 61 is provided on the side of the inclined tube sedimentation tank 60 away from the air flotation treatment tank 1, and the filter overflow tank 61 is connected to the inclined tube sedimentation tank 60. A water pump assembly 62 is connected to the end of the filter overflow tank 61 away from the inclined tube sedimentation tank 60. A sand filter tank 63 is connected to the end of the water pump assembly 62 away from the filter overflow tank 61 through a conduit. A lifting platform 58 is also provided on one side of the air flotation treatment tank 1. Two skimming devices 64 are provided at the upper opening and the bottom of the air flotation treatment tank 1.

[0018] Specifically, the outlet 47 can be flexibly adjusted according to the real-time lifting height of the two sealing slide plates 48, ensuring that the skimming pipe 3 can be accurately positioned on the upper surface of the sewage in the water tank 2 under different water level conditions, thereby efficiently skimming out and smoothly discharging the scum generated in the sewage. The end of the skimming pipe 3 near the waste sludge tank 59 is equipped with an outlet 47, which is reliably connected to the waste sludge tank 59 via an external flexible hose, achieving sealed centralized treatment of waste materials and preventing secondary odor emissions. The lifting platform 58 is designed with humanized operation and maintenance needs in mind, providing stable lifting for personnel, allowing them to observe the internal operating status of the flotation treatment tank 1 from close range and multiple angles, and to fine-tune the equipment parameters in real time. The upper skimming device 64, through reciprocating motion, lifts the flotation treatment tank... 1. The surface scum is guided to gather towards the opening of the scum skimming pipe 3, which significantly improves the breadth and speed of scum collection by the scum skimming pipe 3. Meanwhile, the sludge skimming device 64 at the bottom pushes the sludge deposited at the bottom of the tank 4 to the working area of ​​the scum collection pipe 5 through a scraping action, providing a material basis for subsequent sludge discharge operations. At the same time, the inclined tube sedimentation tank 60 integrated into the system greatly increases the sedimentation area by utilizing the principle of shallow pool sedimentation, so that fine suspended solids settle quickly in laminar flow. The filter overflow tank 61 plays the role of stabilizing the flow and secondary interception, ensuring uniform effluent load and removing trace floating solids. The water pump assembly 62 provides the necessary power head for the system, driving the treated water into the sand filter tank 63. The sand filter tank 63 removes residual suspended particles and some odor molecules in the water through the deep interception effect of the graded sand layer, ultimately achieving efficient deodorization and purification of the effluent. During the rotation of the central rotating pipe 8, its mechanical transmission characteristics drive the slag-collecting pipe 5, the central pipe 6, and the slag-collecting plate 7 to rotate in an orderly and periodic manner. Specifically, when the central rotating pipe 8 rotates half a revolution, the slag-collecting pipe 5 will rotate coaxially under the driving force until the slag-collecting plate 7 rotates 180 degrees and tightly covers the upper surface of the tank bottom 4. In this state, the upper slot at the top of the slag-collecting pipe 5 is precisely blocked by the lower end face of the tank bottom 4, forming an approximately circular closed collection chamber between the slag-collecting pipe 5 and the tank bottom 4. The centripetal force generated by the change in the position of the slag-collecting plate 7 is utilized... The sweeping force forces the waste residue, which was originally on the upper surface of the bottom 4 of the tank, into the cylindrical cavity. Through this repeated mechanical cycle, the bottom of the sludge collecting tube 5 can stably accumulate a high concentration of waste residue. Due to the semi-enclosed nature of the cavity, the waste residue is not easy to escape or disperse before being discharged. The surface of the sludge collecting plate 7 is also provided with several micro-pore water outlet holes. Its design is intended to achieve solid-liquid pre-separation, so that the sludge collecting plate 7 can intercept sludge while allowing clean water to pass through. Of course, in practical applications, the sludge collecting plate 7 can also be replaced by a screen with a specific mesh size according to the water quality.

[0019] In this embodiment, a hexagonal groove 19 is provided on the side of half gear 19 near half gear 2 10, and a hexagonal slider 11 is fixedly connected to the side of half gear 2 10 near half gear 19. The hexagonal slider 11 and the hexagonal groove 19 are slidably connected. A spring 12 is also fixedly connected between half gear 19 and half gear 2 10. One end of the slag collection pipe 5 is sealed and slidably connected to a piston disc 42, and the piston disc 42 is fixedly connected to half gear 2 10. Two electric push rods 49 are symmetrically installed on the outer wall of the water tank 2. A push plate 50 is fixedly connected to the output end of the electric push rod 49, and the upper surface of the push plate 50 abuts against the lower end of the sealing slide plate 48.

[0020] Specifically, when the central rotating tube 8 receives power and rotates, the torque it generates will preferentially drive the second half gear 10 to rotate. During the rotation of the second half gear 10, the power is smoothly transmitted and drives the first half gear 9 to rotate synchronously through the axial insertion and engagement of the hexagonal slider 11 and the hexagonal slide groove 19. During this dynamic process, the toothed area of ​​the first half gear 9 will periodically mesh and push the rack 21 to produce an upward linear displacement. When the toothless notch of the first half gear 9 contacts the rack 21, the rack 21 will momentarily move downward due to the influence of gravity. This reciprocating linear motion drives the adjustable slide rod 23 to slide up and down synchronously. This provides a continuous input force to the upper rotating structure, driving the annular cleaning cotton 39 to rotate and reposition itself, thus performing a comprehensive and thorough mechanical wiping and cleaning of the outer wall of the skimming pipe 3. The adjustable slide bar 23 is connected to the locking block by two slide bars, allowing its extension length to be flexibly adjusted according to the water level 2 depth of the water tank. Standardized mechanical positioning extension rods can also be used for functional replacement during manufacturing. The protective cylinder 22 acts as a physical barrier, tightly protecting the connection between the adjustable slide bar 23 and the sludge collection pipe 5, preventing sewage erosion and ensuring the accuracy of the movement trajectory. When the slag-collecting pipe 5 is pushed to the deepest position of the water tank 2 under the action of horizontal driving force, the second half gear 10 will move axially towards the first half gear 9 until the end faces of the two are completely in contact and the first spring 12 is compressed to its limit. At this time, the teeth of the second half gear 10 and the first half gear 9 form phase compensation in space, so that the rack 21 is approximately meshing with a full gear on the contact surface at this time. In this state, the rotational motion is converted into a continuous lifting force, which directly acts on the rotating structure and causes one end of the slag-skimming pipe 3 to tilt up, generating a certain slope. This facilitates the rapid outflow of scum from the pipe under gravity, effectively preventing the risk of blockage caused by long-term scum accumulation at the bottom of the pipe. At the same time, as the scum-collecting pipe 5 periodically moves away from the depth of the water tank 2, the half-gear 9 and half-gear 10 separate again and return to the half-tooth meshing state. At this time, the rack 21 will instantly reset and fall with a certain impact amplitude every time it passes the toothless position due to the weight of the scum-skimming pipe 3. The vibration energy generated by this mechanical impact can effectively break the tension and stickiness of the scum surface, causing the stubborn scum attached to the pipe wall to loosen and be discharged further during the vibration.

[0021] In this embodiment, a groove 13 is provided at one end of the back cavity 18 near the central tube 6. A slide plate 14 is slidably connected inside the groove 13. A reset rod 15 is installed between the slide plate 14 and the groove 13. A push post 16 is fixedly connected to one side of the slide plate 14. A push bar 17 is fixedly connected to the outer wall inside the back cavity 18 of the central rotating tube 8, and the push bar 17 can abut against the push post 16.

[0022] During the rotation cycle of the central rotating tube 8, the pusher 17 fixed to its outer wall will perform circular motion. When the movement trajectory of the pusher 17 comes into contact with the pusher 16, a tangential pushing force will be generated to drive the pusher 16 and the sludge collection tube 5 to rotate around the axis of the central rotating tube 8. When the sludge collection tube 5 rotates to the preset position of 180 degrees, the sludge collection plate 7 and the upper surface of the bottom of the tank 4 will rigidly contact each other, limiting the further rotation of the sludge collection tube 5. At this time, the pusher 17 begins to overcome the resistance of the reset rod 15 under continuous torque, pushing the pusher 16 and its fixed sliding plate 14 to slide relative to each other in the cavity of the slide groove 13. During this process, the reset rod 15 is compressed and stored until the pusher 17 rotates to the point of separation from the pusher 16. After losing the pushing force, the sludge collection tube 5 will reset and rotate. Through this reciprocating swing process, the sludge collection plate 7, like a scraper, accurately pushes the sludge scattered on the upper surface of the bottom of the tank 4 to the bottom of the collection cavity of the sludge collection tube 5 for accumulation.

[0023] In this embodiment, a liquid storage shell 45 is fixedly connected to the outer wall of the water tank 2. An external sealing plate 43 that slides laterally is provided inside the cavity of the liquid storage shell 45. Several elastic rods 44 are fixedly connected between the external sealing plate 43 and the water tank 2. The external sealing plate 43 can abut against the piston disc 42. A hose 46 is fixedly connected to the lower end of the liquid storage shell 45. The other end of the hose 46 is sealed and connected to one end of the slag skimmer 3. A protective cylinder 22 is fixedly connected to the upper surface of the slag collecting pipe 5. The protective cylinder 22 is sealed and slidably connected to the rack 21. A handle 25 is fixedly connected to the upper end of the adjustable slide rod 23.

[0024] Specifically, as the sludge-collecting pipe 5 moves deeper into the water tank 2, the piston disc 42 first plays an isolating role, physically cutting off the liquid storage shell 45 from the main chamber of the flotation treatment tank 1. Then, the piston disc 42 contacts the external sealing plate 43 and pushes it to slide away from the tank body, overcoming the tension of the elastic rod 44. Under this mechanical pumping action, a portion of the mud-containing mixture is forced into the liquid storage shell 45. As the pressure inside the liquid storage shell 45 increases, the mud and water are directionally transported to the internal space of the sludge-skimming pipe 3 through the hose 46. Since the sludge-skimming pipe 3 is in the aforementioned tilted and vibrating state at this time, this part of the mud and water with a certain flushing force just serves as a flushing medium, which can effectively carry and peel off the stubborn dirt adhering to the inner wall of the sludge-skimming pipe 3, realizing the concept of recycling and cleaning with dirt, and greatly improving the maintenance-free performance of the equipment. In the second embodiment, the external sealing plate 43 can be replaced with a more intelligent pressure-sensitive electric valve. When the piston disc 42 generates pressure and the sensor detects a sudden increase in pressure, the valve automatically opens, allowing the mud and water to flow precisely into the storage tank 45. If the equipment is under high load or the concentration of wastewater impurities is extremely high, a secondary booster pump can be added at the connection interface between the hose 46 and the storage tank 45 to actively increase the jet impact force of the mud and water, ensuring the thorough cleaning of the skimming system.

[0025] In this embodiment, the rotating structure includes a T-shaped rod 27, which is disposed inside the bottom shell 41 and extends to the lower surface of the bottom shell 41. A connecting plate 26 is fixedly connected to the lower end of the T-shaped rod 27, and the connecting plate 26 is fixedly connected to the side wall of the upper end of the adjustable slide rod 23. Two symmetrically positioned sliding cylinders 28 are provided at both ends of the T-shaped rod 27. A connecting rod 30 is slidably connected inside the cavity of each sliding cylinder 28, and the positions of the connecting rods 30 in the two sliding cylinders 28 are staggered. A turntable 29 is fixedly connected to the end of each connecting rod 30 away from the T-shaped rod 27, and the two turntables 29 are positioned opposite each other. A positioning post 32 is fixedly connected to the end of the turntable 29 away from the connecting rod 30. A toothed cylinder wheel 31 is rotatably connected to the outer side wall of the positioning post 32, and the outer side wall of the toothed cylinder wheel 31 abuts against the annular cleaning cotton 39.

[0026] In this embodiment, a coupling 33 is fixedly connected to the side of the gear 31 away from the turntable 29. A spring 35 is fixedly connected to the outer wall of the coupling 33. A square rod 37 is fixedly connected to the end of the positioning pin 32 away from the turntable 29. A coupling 34 is slidably connected to the outer wall of the square rod 37, and the coupling 34 meshes with the coupling 33. A spring 36 is fixedly connected to the end of the coupling 34 away from the coupling 33, and the spring 36 abuts against the inner wall of the bottom shell 41. Two symmetrically positioned sealing shells 38 are also sealed and rotatedly connected to the outer wall of the gear 31.

[0027] Specifically, when the slag-collecting pipe 5 is no longer closest to the liquid storage shell 45, during the reciprocating up-and-down lifting process of the adjustable slide bar 23 driven by the rack 21, the displacement is transmitted to the T-shaped rod 27 through the connecting plate 26, causing it to generate a vertical swaying displacement inside the bottom shell 41. This vertical displacement drives the two symmetrically arranged sliding cylinders 28 to move synchronously. Since the two ends of the connecting rod 30 are respectively constrained to the eccentric positions of the sliding cylinders 28 and the turntable 29, and the turntable 29 is physically limited to axial rotation, this geometric constraint forces the connecting rod 30 to transform the linear reciprocating motion into the alternating rotational motion of the turntable 29. Moreover, the design of the two sets of mechanisms makes the instantaneous rotation of the two turntables 29 opposite. The rotation of the turntable 29 is achieved through... The positioning pin 32 transmits power to the toothed cylinder wheel 31, driving the annular cleaning cotton 39 to generate a strong kneading rotation, which can more effectively peel off the viscous grease on the surface of the skimming pipe 3. During the rotation of the toothed cylinder wheel 31, through the inclined surface cooperation between the positioning pin 32 and the coupling 34, after the spring 35 stores energy to the limit, it pushes the coupling 34 to generate a lateral jump, inducing the annular cleaning cotton 39 to generate a sudden reset and reverse rotation, thus forming a reciprocating wiping effect similar to manual washing. When the slag collection pipe 5 moves to the deepest point, causing the entire skimming pipe 3 to tilt, the annular cleaning cotton 39 with flexible physical properties can automatically adapt to the angle change and generate elastic deformation, ensuring that it still maintains a tight fit to the pipe wall in the tilted slag discharge state.

[0028] In this embodiment, the end of the central tube 6 away from the second half gear 10 is rotatably connected to the main drive housing 52. A connecting plate 56 is fixedly connected to the outer wall of the slag collection tube 5 near the end of the main drive housing 52. A spring 3 57 is fixedly connected between the connecting plate 56 and the main drive housing 52. A servo motor 55 is screwed into the cavity of the main drive housing 52. A drive gear 54 is fixedly connected to the output end of the servo motor 55. A driven gear 53 meshes with one side of the drive gear 54. The driven gear 53 is coaxially fixed to the central rotating tube 8. An electric push rod 2 51 is fixedly connected to the outer wall of the air flotation treatment tank 1. The output end of the electric push rod 2 51 is fixedly connected to the main drive housing 52.

[0029] Specifically, the servo motor 55 serves as the core power source, providing controllable angular velocity output to the central rotary tube 8 through the precise meshing of the drive gear 54 and the driven gear 53. After the sludge collection tube 5 completes the 180-degree flipping and sludge collection action, the synchronous rotation of the connecting plate 56 allows the spring 3 57 to store sufficient mechanical potential energy. Once the push bar 17 and the push column 16 automatically disengage, the sludge collection tube 5 quickly resets and flips under the explosive elastic force of the spring 3 57. In the final stage, the electric push rod 2 51 pushes the drive main shell 52 and its associated sludge collection mechanism to make a linear displacement towards the waste sludge pool 59, pumping out the concentrated sludge. This reduces the amount of water carried in the sludge discharge process, maximizes the retention of process water inside the flotation treatment tank 1, solves the technical pain point of excessive water loss caused by sludge discharge in traditional processes, and ensures the overall resource utilization efficiency of the treatment system.

[0030] Working principle: During operation, the servo motor 55 drives the drive gear 54 and driven gear 53 to rotate the central rotating tube 8, causing the pusher 17 to periodically abut the pusher 16 in the back cavity 18, so that the slide plate 14 compresses the reset rod 15 along the slide groove 13. This causes the sludge collecting tube 5, the central tube 6, and the sludge collecting plate 7 to flip on the bottom 4 of the tank and reset to collect sludge under the action of the connecting plate 56 and the spring 57. When the sludge collecting tube 5 slides normally inside the water tank 2, it passes through a semi-circular path... Gear 210, via hexagonal slider 11 and hexagonal groove 19, links half gear 19 and spring 12, causing rack 21 to move along protective cylinder 22, driving adjustable slide rod 23 and handle 25 to reciprocate up and down. This, in turn, via connecting plate 26, drives T-shaped rod 27 to rotate within bottom shell 41, linking sliding cylinder 28, connecting rod 30, and turntable 29. This, in conjunction with positioning pin 32, toothed cylinder wheel 31, coupling 1 33, spring 1 35, square rod 37, coupling 2 34, spring 2 36, and sealing shell 3, further facilitates the rotation of these components. The annular cleaning cotton 39 inside the drive positioning sleeve 40 continuously brushes and cleans the surface of the skimming pipe 3, which is slidably connected between the sealing slide plate 48 and the ball cage universal shaft 24. When the sludge collection pipe 5 moves to the deepest position closest to the liquid storage shell 45, the second half gear 10 and the first half gear 9 are axially engaged to form a fully meshed state, which straightens the skimming pipe 3 to make it tilt up and discharge the sludge. At the same time, the piston disc 42 is used to abut against the external sealing plate 43 and the elastic rod 44 to inject the mud and water in the liquid storage shell 45 into the skimming pipe 3 through the hose 46 and the sewage outlet 47 to enhance the sewage discharge effect. Finally, based on the electric push rod 49 adjusting the water level through the push plate 50 and the electric push rod 51 pushing the drive main shell 52 to discharge sludge, the treated water is deeply purified by passing through the inclined tube sedimentation tank 60, the filter overflow tank 61, the water pump assembly 62 and the sand filter tank 63 in sequence. After the lifting platform 58 assists the skimming equipment 64 in operation, the waste residue is uniformly discharged into the waste residue tank 59 to complete the whole process purification.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage deodorization and purification device for urban and rural sewage treatment, comprising an air flotation treatment tank (1) and a waste residue tank (59), wherein the waste residue tank (59) is fixedly connected to the outer wall of the air flotation treatment tank (1), characterized in that: The air flotation treatment tank (1) includes a water tank (2), the bottom of the inner cavity of the water tank (2) is provided with a sludge discharge structure, and the top of the water tank (2) is provided with a skimming structure. The skimming structure includes two symmetrically sliding sealed slide plates (48) arranged on the inner wall of the water tank (2), each of the sealed slide plates (48) is rotatably connected to a ball cage universal joint (24), and a skimming pipe (3) is slidably connected between the two ball cage universal joints (24). The outer side wall of the skimming pipe (3) is slidably connected to a positioning sleeve (40), the inner side wall of the positioning sleeve (40) is slidably connected to an annular cleaning cotton (39), the lower end of the positioning sleeve (40) is fixedly connected to a bottom shell (41), and the cavity of the bottom shell (41) is provided with a rotating structure that can drive the annular cleaning cotton (39) to slide. The sludge discharge structure includes a tank bottom (4), which is fixed to the bottom of the inner cavity of the water tank (2). A sludge collection pipe (5) is movably connected to the upper surface of the tank bottom (4). A back cavity (18) is opened at one end of the sludge collection pipe (5). A half gear (9) is rotatably connected inside the back cavity (18). A coaxial central pipe (6) is fixed inside the cavity of the sludge collection pipe (5). A central rotating pipe (8) is rotatably connected inside the cavity of the central pipe (6). A half gear (10) is fixed to one end of the central rotating pipe (8). The half gear (10) and the half gear (9) rotate synchronously. A rack (21) meshes with the outer wall of the half gear (9). An adjustable slide rod (23) is fixed to the upper end of the rack (21). The other end of the adjustable slide rod (23) is fixed to the rotating structure. A slag-gathering plate (7) is fixedly connected to the outer wall of the central rotating pipe (8), and the slag-gathering plate (7) is fixedly connected to the slag-gathering pipe (5).

2. The multi-stage deodorization and purification equipment for urban and rural sewage treatment according to claim 1, characterized in that: A hexagonal groove (19) is provided on the side of the first half gear (9) near the second half gear (10). A hexagonal slider (11) is fixedly connected to the side of the second half gear (10) near the first half gear (9). The hexagonal slider (11) and the hexagonal groove (19) are slidably connected. A spring (12) is also fixedly connected between the first half gear (9) and the second half gear (10). A piston disc (42) is slidably connected to one end of the slag collection pipe (5). The piston disc (42) is fixedly connected to the second half gear (10). Two electric push rods (49) are symmetrically installed on the outer wall of the water tank (2). A push plate (50) is fixedly connected to the output end of the electric push rod (49). The upper surface of the push plate (50) abuts against the lower end of the sealing slide plate (48).

3. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 2, characterized in that: The back cavity (18) has a groove (13) at one end near the central tube (6). A slide plate (14) is slidably connected inside the groove (13). A reset rod (15) is installed between the slide plate (14) and the groove (13). A push column (16) is fixedly connected to one side of the slide plate (14). A push bar (17) is fixedly connected to the outer wall inside the back cavity (18) of the central rotating tube (8), and the push bar (17) can abut against the push column (16).

4. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 3, characterized in that: The outer wall of the water tank (2) is fixed with a liquid storage shell (45). The cavity of the liquid storage shell (45) is provided with a horizontally sliding external sealing plate (43). Several elastic rods (44) are fixed between the external sealing plate (43) and the water tank (2). The external sealing plate (43) can abut against the piston plate (42). The lower end of the liquid storage shell (45) is fixed with a hose (46). The other end of the hose (46) is sealed and connected to one end of the skimming pipe (3). The upper surface of the slag collection pipe (5) is fixed with a protective cylinder (22). The protective cylinder (22) is sealed and slidably connected to the rack (21). The upper end of the adjustable slide rod (23) is fixed with a handle (25).

5. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 1, characterized in that: The rotating structure includes a T-shaped rod (27), which is disposed inside the bottom shell (41), and the lower end of the T-shaped rod (27) extends to the lower surface of the bottom shell (41). A connecting plate (26) is fixedly connected to the lower end of the T-shaped rod (27), and the connecting plate (26) is fixedly connected to the side wall of the upper end of the adjustable slide rod (23). Two symmetrically positioned sliding cylinders (28) are provided at both ends of the T-shaped rod (27), and a connecting rod is slidably connected inside the cavity of each sliding cylinder (28). (30), and the positions of the connecting rods (30) in the two sliding cylinders (28) are staggered. A turntable (29) is fixed to one end of each of the two connecting rods (30) away from the T-shaped rod (27), and the two turntables (29) are in opposite positions. A positioning post (32) is fixed to one end of the turntable (29) away from the connecting rod (30). A toothed cylinder wheel (31) is rotatably connected to the outer wall of the positioning post (32), and the outer wall of the toothed cylinder wheel (31) abuts against the annular cleaning cotton (39).

6. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 5, characterized in that: The toothed spool (31) is fixedly connected to a coupling one (33) on the side away from the turntable (29). A spring one (35) is fixedly connected to the outer wall of the coupling one (33). A square rod (37) is fixedly connected to the end of the positioning pin (32) away from the turntable (29). A coupling two (34) is slidably connected to the outer wall of the square rod (37), and the coupling two (34) meshes with the coupling one (33). A spring two (36) is fixedly connected to the end of the coupling two (34) away from the coupling one (33), and the spring two (36) abuts against the inner wall of the bottom shell (41). The inner wall of the coupling two (34) is also sealed with two symmetrically positioned sealing shells (38), and the sealing shells (38) are rotatably connected to the outer wall of the toothed spool (31).

7. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 1, characterized in that: The central tube (6) is rotatably connected to the drive housing (52) at the end away from the second half gear (10). A connecting plate (56) is fixedly connected to the outer wall of the slag-collecting tube (5) near the drive housing (52). A spring (57) is fixedly connected between the connecting plate (56) and the drive housing (52). A servo motor (55) is screwed into the cavity of the drive housing (52). A drive gear (54) is fixedly connected to the output end of the servo motor (55). A driven gear (53) meshes with one side of the drive gear (54). The driven gear (53) is coaxially fixed with the central rotating tube (8). An electric push rod (51) is fixedly connected to the outer wall of the air flotation treatment tank (1). The output end of the electric push rod (51) is fixedly connected to the drive housing (52).

8. A multi-stage deodorization and purification device for urban and rural sewage treatment according to claim 1, characterized in that: An inclined tube sedimentation tank (60) is provided on one side of the air flotation treatment tank (1), and the upper side wall of the inclined tube sedimentation tank (60) is connected to the air flotation treatment tank (1). A filter overflow tank (61) is provided on the side of the inclined tube sedimentation tank (60) away from the air flotation treatment tank (1), and the filter overflow tank (61) is connected to the inclined tube sedimentation tank (60). A water pump assembly (62) is connected to the end of the filter overflow tank (61) away from the inclined tube sedimentation tank (60). A sand filter tank (63) is connected to the end of the water pump assembly (62) away from the filter overflow tank (61) through a conduit. A lifting platform (58) is also provided on one side of the air flotation treatment tank (1). Two skimming devices (64) are provided at the upper opening and the bottom of the air flotation treatment tank (1).

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