A device for treating nitrogen and phosphorus in lake sediment

Abstract

The utility model relates to the technical field of pollution treatment, concretely to a lake sediment's nitrogen phosphorus treatment device, including jar body, still include: rotating column, through and rotate the connection in the jar body top, and be equipped with the open device chamber with one end, and the rotating column is located in the jar body inside one end and is opened the vertical slot hole that penetrates, swing nozzle, be located in the device chamber, swing nozzle's output end through the vertical slot hole and extend to the jar body inside, drive assembly, water sending subassembly. The utility model adds swing nozzle in rotatable rotating column, uses water sending subassembly to provide water source for swing nozzle, under the action of water pump, the water flow that swing nozzle exports will be with high -speed impact mode acts to the jar body inside, uses drive assembly to make swing nozzle's output end reciprocate swing in the longitudinal direction, increases the flushing area and the cleaning effect in the jar body, reduces the harmful substance or harmful gas of sediment.

Description

Technical Field

[0001] This utility model relates to a treatment device, and more particularly to a nitrogen and phosphorus treatment device for lake sediments, belonging to the field of pollution treatment technology. Background Technology

[0002] Nitrogen and phosphorus in water bodies are important endogenous pollutants leading to eutrophication. The main sources of nitrogen and phosphorus in lake sediments are natural sedimentation, such as the decomposition of aquatic organisms, which deposit nitrogen and phosphorus as organic matter; and the entry of urban sewage, agricultural non-point source pollution, and industrial wastewater into lakes through surface runoff, gradually forming sediments. Nitrogen and phosphorus in sediments are easily released back into the water body under anaerobic conditions, microbial activity, or water disturbance, leading to increased eutrophication, water quality deterioration, and ecosystem imbalance. Currently, there are various methods for treating nitrogen and phosphorus in lake sediments. One method, when treating nitrogen and phosphorus in lake sediments from a specific area, requires first introducing the sediments from that area into a specific device for treatment.

[0003] For example, in the prior art, patent CN221412322U discloses a nitrogen and phosphorus treatment device for lake sediments, including a base, a support fixedly connected to the top of the base, a rotating shaft rotatably connected to the outer surface of the support, a sedimentation tank fixedly connected to the outer surface of the rotating shaft, a slag discharge pipe penetrating and fixedly connected to the outer surface of the sedimentation tank, a motor fixedly connected to the top of the sedimentation tank, an inlet and an outlet penetrating and fixedly connected to the top of the sedimentation tank, and a feed inlet penetrating and fixedly connected to the top of the sedimentation tank; the outer surface of the support is provided with an adjustment limit device.

[0004] In operation, the aforementioned device first introduces sediment from a specific area into a sedimentation tank. Nitrogen and phosphorus in the sediment are then treated within the tank. After treatment, a slider moves downwards, compressing a first spring and simultaneously moving a connecting block downwards. This downward movement of the connecting block causes a limiting block to move downwards, disengaging it from the first gear's teeth. A rotating rod then rotates, causing the first gear to rotate, which in turn rotates the second gear. The second gear's rotation, via a rotating shaft, causes the sedimentation tank to tilt, facilitating the cleaning of impurities inside. However, lake sediments contain more than just nitrogen and phosphorus. Due to the influence of the water body, some sediments may contain harmful gases or other pollutants. If the levels of these pollutants exceed safe limits, and the device has not pre-diluted or cleaned the sediment, attempting to clean the sedimentation tank could pose a health hazard to workers. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a nitrogen and phosphorus treatment device for lake sediments, which solves the problem of inconvenient cleaning of sediments within specific devices in existing technologies.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A nitrogen and phosphorus treatment device for lake sediments includes a tank and further includes: a rotating column that penetrates and is rotatably connected to the top of the tank and is configured to have an open device cavity at one end, wherein a through vertical slot is formed on the end of the rotating column located inside the tank; an oscillating nozzle disposed within the device cavity, wherein the output end of the oscillating nozzle extends into the tank through the vertical slot; a drive assembly for driving the output end of the oscillating nozzle to oscillate longitudinally; and a water supply assembly for supplying water to the oscillating nozzle.

[0007] Furthermore, a stirring rod is connected along the axis to one end of the rotating column located inside the tank, and several stirring blades are connected to the stirring rod; one end of the device cavity with an opening passes through the top of the tank and is connected to the outside of the tank; a driven gear is connected to the side wall of the end of the rotating column located outside the tank; a driving gear is rotatably connected to the top of the tank, and the driving gear meshes with the driven gear; a drive motor is installed on the top of the tank, and the output end of the drive motor is connected to the driving gear.

[0008] Furthermore, a rotating frame is fixedly connected inside the cavity of the device, and a rotating shaft is connected to the rotating frame. The swing nozzle passes through the rotating shaft and is installed on the rotating shaft. A hinged sleeve slides on the outer wall of the swing nozzle near the input end.

[0009] Furthermore, the drive assembly includes a drive rod, a connecting plate, a first rotating base, a second rotating base, a lifting tube, and a telescopic rod; wherein, one end of the drive rod is hinged to a hinged sleeve, the connecting plate is connected to the other end of the drive rod, the first rotating base is connected to the connecting plate, a stabilizing plate is fixedly connected inside the device cavity, the drive rod passes through the stabilizing plate and is slidably connected to the stabilizing plate, a suspension is connected to the top of the tank, a sliding tube is fixedly connected to the suspension, the lifting tube passes through the sliding tube and is slidably connected to the sliding tube, a through-slot is formed on the side wall of the lifting tube, the second rotating base is connected to one end of the lifting tube, and the second rotating base is rotatably connected to the first rotating base, the telescopic rod is installed on the suspension, and the movable end of the telescopic rod passes through the suspension and is connected to the lifting tube.

[0010] Furthermore, the water delivery assembly includes a hose, a lower conduit, an upper conduit, and a water pump; wherein, the lower conduit passes through and is connected to the stabilizing plate, the input end of the hose is connected to the output end of the lower conduit, the output end of the hose is connected to the input end of the oscillating nozzle, the lower conduit and the upper conduit are connected by a rotary joint, the upper conduit is connected to the sliding pipe by a pipe bracket, and the pipe bracket is located in a long groove, the water pump is installed on the tank, the output end of the water pump is connected to a water outlet pipe, and the input end of the upper conduit is connected to the water outlet pipe.

[0011] Furthermore, the top of the tank is connected to several flow pipes around the central axis of the tank. The flow pipes penetrate the top of the tank. Several water spray heads are connected to one end of the flow pipe located inside the tank. The top of the tank is provided with an annular pipe. The input end of the flow pipe is connected to the output end of the annular pipe. The input end of the annular pipe is connected to the water outlet pipe.

[0012] Furthermore, both the rotating column and the stirring rod are connected to support rods, and a scraper is connected to one end of the support rod. The scraper is in contact with the inner wall of the tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This application adds an oscillating nozzle inside a rotatable rotating column and uses a water supply assembly to provide water to the oscillating nozzle. Under the action of a water pump, the water flow output from the oscillating nozzle acts on the inside of the tank in a high-speed impact manner. Then, a drive assembly is used to make the output end of the oscillating nozzle oscillate back and forth longitudinally, increasing the rinsing area and cleaning effect inside the tank. After the inside of the tank is cleaned, the amount of sediment attached to the inside of the tank is greatly reduced, as are the harmful substances and impurities in the sediment. When workers clean the inside of the tank, the impact of sediment on workers can be reduced. Using water flow to clean the inside of the tank can also greatly reduce the workload of workers and reduce the safety hazards caused by workers coming into contact with sediment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 1 ; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic cross-sectional view of the present invention. Figure 2 ; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This utility model Figure 1 Schematic diagram of the middle section; Figure 7 This is a schematic diagram of the flow pipe and spray head structure of this utility model; Figure 8 This utility model Figure 6 Schematic diagram of a local structure in the middle; Figure 9 This utility model Figure 8 A schematic diagram of a local part of the structure.

[0015] In the diagram, 1. Tank body; 101. Inlet; 102. Outlet; 103. Valve; 104. Support leg; 2. Swing nozzle; 3. Rotating column; 31. Device cavity; 32. Vertical slot; 33. Stirring rod; 34. Stirring blade; 35. Driven gear; 36. Driven gear; 37. Drive motor; 41. Driving rod; 42. Connecting plate; 43. Rotating base one; 44. Rotating base two; 45. Lifting pipe; 46. Extension. 47. Retractable rod; 48. Stabilizer plate; 49. Suspension; 50. Long groove; 51. Hose; 52. Lower guide pipe; 53. Upper guide pipe; 54. Water pump; 55. Rotary joint; 56. Outlet pipe; 57. Pipe rack; 6. Rotating frame; 7. Rotating shaft; 8. Hinge sleeve; 9. Sliding pipe; 10. Flow pipe; 11. Spray head; 12. Annular pipe; 13. Support rod; 14. Scraper; 15. Controller; 16. Anti-blocking protrusion; 17. Inlet pipe. Detailed Implementation

[0016] The technical solution of this utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-9 As shown, the nitrogen and phosphorus treatment device for lake sediments provided in this embodiment includes a tank 1. The top of the tank 1 is provided with an inlet 101, through which lake sediments can be fed into the tank 1 during use. The bottom of the tank 1 is provided with an outlet 102, and a valve 103 is provided on the outlet 102. By controlling the opening and closing of the valve 103, the communication between the outlet 102 and the inside of the tank 1 can be controlled. When the valve 103 is open, the sediments located in the tank 1 can be discharged from the tank 1 through the outlet 102. When the valve 103 is closed, the sediments will accumulate in the tank 1. The bottom of the tank 1 is also provided with support legs 104 for supporting the tank 1.

[0018] It also includes a rotating column 3, a swing nozzle 2, a drive assembly, and a water delivery assembly. Specifically, the rotating column 3 is rotatably connected to the top of the tank 1 and is configured with an open device cavity 31 at one end. A through vertical slot 32 is opened on the end of the rotating column 3 inside the tank 1. Therefore, to avoid the vertical slot 32 being blocked by sediment, the height of the sediment inside the tank 1 does not exceed the bottom of the vertical slot 32. The swing nozzle 2 is located in the device cavity 31. The output end of the swing nozzle 2 extends into the tank 1 through the vertical slot 32. The swing nozzle 2 is a nozzle component in the prior art. There is no limitation on the model selection of the swing nozzle 2. A suitable nozzle component can be selected according to actual needs. The drive assembly is used to drive the output end of the swing nozzle 2 to swing longitudinally back and forth. The water supply assembly is used to supply water to the swing nozzle 2. The water supply assembly accelerates the water flow and forms a high-pressure water flow. The accelerated water flow is then sent into the swing nozzle 2, so that the water flow sprayed from the output end of the swing nozzle 2 can spray a longer distance. Therefore, when the water flow sprayed from the swing nozzle 2 acts on the inside of the tank 1, it has a certain impact force, which improves the effect of flushing sediment.

[0019] In use, after the sediment inside tank 1 is discharged from tank 1, the water supply assembly is activated to send water to the oscillating nozzle 2 and spray it out from the output end of the oscillating nozzle 2. The drive assembly controls the output end of the oscillating nozzle 2 to oscillate up and down within the vertical slot 32, causing the water flow from the output end of the oscillating nozzle 2 to flush the inner wall of tank 1 longitudinally. This causes the sediment adhering to the inner wall of tank 1 to slide off the inner wall of tank 1 under the impact of the water flow. The sediment that is impacted mixes with the water flow and is discharged from the outlet 102. As the water flow continuously flushes the inside of tank 1, the sediment adhering to the inside of tank 1 will... This significantly reduces sediment buildup, preventing excessive sediment buildup from affecting workers during subsequent cleaning of the tank 1. To facilitate the control of the drive and water delivery components, a controller 15 is installed on the tank 1. The controller 15 controls the operation of the drive and water delivery components. This controller 15 is a commonly used module in the field, and any control module that can control the operation of the drive and water delivery components can be applied to this application and achieve its function. After the device has been used for a period of time, workers can clean the structure inside the tank 1 or the device cavity 31 to ensure the normal operation of the various structures.

[0020] Specifically, in order to achieve the above structural effect, such as Figure 6 As shown, the rotating column 3 is located at one end inside the tank 1 and is connected to a stirring rod 33 along the axis. Several stirring blades 34 are connected to the stirring rod 33. When the rotating column 3 rotates, it will drive the stirring rod 33 to rotate synchronously, which in turn drives the stirring blades 34 to make circular motion. When there is sediment inside the tank 1, it will be mixed under the action of the stirring blades 34 to improve the treatment effect of nitrogen and phosphorus in the sediment.

[0021] The device cavity 31 has an open end that passes through the top of the tank body 1 and is connected to the outside of the tank body 1; a driven gear 35 is connected to the side wall of the rotating column 3 located outside the tank body 1; a driving gear 36 that meshes with the driven gear 35 is rotatably connected to the top of the tank body 1; a drive motor 37 is installed on the top of the tank body 1; the output end of the drive motor 37 is connected to the driving gear 36; in use, the drive motor 37 drives the driving gear 36, the driven gear 35, and the rotating column 3 to rotate in sequence; the drive motor 37 is electrically connected to the controller 15; the operator can control the start and stop of the drive motor 37 and the output torque through the controller 15.

[0022] like Figures 2-6 As shown, a rotating frame 6 is fixedly connected inside the device cavity 31. A rotating shaft 7 is connected to the rotating frame 6 and is rotatably connected to the rotating frame 6. The rotating shaft 7 and the vertical slot 32 are perpendicular to each other. The swing nozzle 2 passes through the rotating shaft 7 and is installed on the rotating shaft 7. A hinged sleeve 8 slides on the outer wall of the swing nozzle 2 near its input end. A stop protrusion 16 is provided on the outer wall of the swing nozzle 2 near its input end to limit the sliding distance of the hinged sleeve 8, so that it can only slide back and forth within the moving distance range. The rotating shaft 7 can be fixed by bolt fixing sleeve or welding. The fixing method of the rotating shaft 7 is not specified in detail. After the swing nozzle 2 is installed on the rotating shaft 7, the rotating frame 6 is connected to the device cavity 31 by welding or bolt connection. At this time, a force is applied to the swing nozzle 2, which makes the swing nozzle 2 and the rotating shaft 7 rotate on the rotating frame 6, so that the output end of the swing nozzle 2 will rotate around the axis of the rotating shaft 7.

[0023] Furthermore, to facilitate the oscillation of the oscillating nozzle 2, the aforementioned drive assembly includes a drive rod 41, a connecting plate 42, a first rotating base 43, a second rotating base 44, a lifting tube 45, and a telescopic rod 46. One end of the drive rod 41 is hinged to the hinged sleeve 8, the connecting plate 42 is connected to the other end of the drive rod 41, the first rotating base 43 is connected to the connecting plate 42, a stabilizing plate 47 is fixedly connected inside the device cavity 31, the drive rod 41 passes through the stabilizing plate 47 and is slidably connected to it, a suspension 48 is connected to the top of the tank 1, a sliding tube 9 is fixedly connected to the suspension 48, the lifting tube 45 passes through the sliding tube 9 and is slidably connected to it, a through-slot 49 is provided on the side wall of the lifting tube 45, the second rotating base 44 is connected to one end of the lifting tube 45, and the second rotating base 44 is rotatably connected to the first rotating base 43, the telescopic rod 46 is installed on the suspension 48, and the movable end of the telescopic rod 46 passes through the suspension 48 and is connected to the lifting tube 45.

[0024] When the movable end of the telescopic rod 46 moves up and down, it will drive the lifting pipe 45 to move synchronously. By rotating the second base 44, it will drive the first base 43 and the connecting plate 42 to move longitudinally, thereby driving the driving rod 41 to slide longitudinally on the stabilizing plate 47. When the driving rod 41 moves up and down, one end will drive the input end of the swing nozzle 2 to move up and down through the hinge sleeve 8. When the input end of the swing nozzle 2 moves up and down, the hinge sleeve 8 slides within a certain distance on the outer wall of the swing nozzle 2. When the input end of the swing nozzle 2 moves up and down, the output end of the swing nozzle 2 will also move up and down, so that the water flow output from the output end of the swing nozzle 2 will rinse the inner wall of the tank 1 from top to bottom or from bottom to top.

[0025] When the rotating column 3 rotates under the drive of the drive motor 37, the rotating column 3 will drive the swing nozzle 2 to make a circular motion synchronously through the rotating frame 6. When the swing nozzle 2 sprays water, under the drive of the rotating column 3, the swing nozzle 2 can more comprehensively apply the water flow to the inner wall of the tank 1. Under the action of the rotating base 1 43 and the rotating base 2 44, when the lifting pipe 45 cannot rotate, the connecting plate 42 and the driving rod 41 will make a circular motion synchronously with the swing nozzle 2. The rotation of the connecting plate 42 and the driving rod 41 will not be affected by the lifting pipe 45. When the telescopic rod 46 drives the lifting pipe 45 to move longitudinally, under the action of the rotating base 1 43 and the rotating base 2 44, it will still drive the connecting plate 42 and the driving rod 41 to move longitudinally, thereby driving one end of the swing nozzle 2 to swing longitudinally.

[0026] Furthermore, the water delivery assembly includes a hose 51, a lower conduit 52, an upper conduit 53, and a water pump 54. The lower conduit 52 passes through and is connected to the stabilizing plate 47. The input end of the hose 51 is connected to the output end of the lower conduit 52, and the output end of the hose 51 is connected to the input end of the oscillating nozzle 2. The lower conduit 52 and the upper conduit 53 are connected by a rotary joint 55. This rotary joint 55 is a prior art structure, and its main function is to ensure communication between the lower conduit 52 and the upper conduit 53, and to maintain communication even when the lower conduit 52 and the upper conduit 53 rotate relative to each other, ensuring a tight seal between them for a sealed rotational connection. The upper conduit 53 is connected to the sliding pipe 9 via a pipe support 57 located within the elongated groove 49. The water pump 54 is installed on the tank body. 1. The water pump 54 can be a high-pressure water pump 54 to ensure the impact force of the water flow output by the swing nozzle 2. The output end of the water pump 54 is connected to the outlet pipe 56, and the input end of the upper conduit 53 is connected to the outlet pipe 56. In use, the input end of the water pump 54 is connected to the inlet pipe 17, and the input end of the inlet pipe 17 is connected to an external water source. The water pump 54 guides the water flow along the upper conduit 53 into the lower conduit 52, and then extends the hose 51 into the swing nozzle 2. The hose 51 can ensure that the swing nozzle 2 can still receive water flow when swinging. When the swing nozzle 2 rotates with the rotating column 3, the lower conduit 52 can rotate on the upper conduit 53 in a fixed state under the action of the rotating joint 55. When the lifting pipe 45 moves longitudinally, the long groove 49 ensures that the lifting pipe 45 will not touch the pipe frame 57 to ensure the stability of the upper conduit 53.

[0027] Furthermore, such as Figure 7 As shown, to enhance the cleaning effect inside the tank 1, several flow pipes 10 are connected around the central axis of the tank 1 at the top of the tank 1. The flow pipes 10 penetrate the top of the tank 1, and several spray heads 11 are connected to one end of the flow pipes 10 inside the tank 1. These spray heads 11 can be high-pressure nozzles to adapt to high-speed water flow. An annular pipe 12 is provided at the top of the tank 1. The input end of the flow pipes 10 is connected to the output end of the annular pipe 12, and the input end of the annular pipe 12 is connected to the outlet pipe 56. When in use, the water output by the water pump 54 will flow along the outlet pipe 56 into the annular pipe 12 and into several connected flow pipes 10. Finally, it will be sprayed out by several spray heads 11 on the flow pipes 10. The output ends of the spray heads 11 are staggered, so the output ends of the spray heads 11 face different positions inside the tank 1. The water flow can be applied to the inside of the tank 1, the rotating main shaft, the stirring rod 33 and the stirring blades 34. Finally, the wastewater formed is discharged from the outlet 102.

[0028] Finally, as Figure 6 As shown, both the rotating column 3 and the stirring rod 33 are connected to support rods 13. A scraper 14 is connected to one end of the support rod 13. The scraper 14 is in contact with the inner wall of the tank 1. When the water flow cleans the internal structure of the tank 1, the rotation of the rotating column 3 will drive the scraper 14 to scrape the inner wall of the tank 1, remove the sediment that is firmly attached to the inner wall of the tank 1, accelerate the rinsing of the sediment by the water flow, and increase the cleaning effect of the sediment inside the tank 1.

[0029] By adding an oscillating nozzle 2 inside a rotatable rotating column and supplying water to the oscillating nozzle 2 using a water supply assembly, the water flow output by the oscillating nozzle 2 will act on the inside of the tank in a high-speed impact manner under the action of the water pump 54. The output end of the oscillating nozzle 2 is made to oscillate back and forth in the longitudinal direction using a drive assembly to increase the rinsing area and cleaning effect inside the tank 1. After the inside of the tank 1 is cleaned, the amount of sediment attached to the inside of the tank 1 will be greatly reduced, as will the harmful substances and other impurities in the sediment. When the staff cleans the inside of the tank 1, the staff will be less likely to be harmed by the sediment. Using water flow to clean the inside of the tank 1 can also greatly reduce the workload of the staff. Moreover, when there is little sediment inside the tank 1, the water flow can be used to rinse it. Once a certain standard of cleaning is achieved, it is not necessary to open the tank 1 for additional cleaning, which can further reduce the workload of the staff.

[0030] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A nitrogen and phosphorus treatment device for lake sediments, comprising a tank (1), characterized in that: Also includes: A rotating column (3) is connected to the top of the tank (1) through and rotating, and is configured to have an open device cavity (31) at one end. A through vertical slot (32) is opened on one end of the rotating column (3) inside the tank (1). A swing nozzle (2) is provided in the device cavity (31), and the output end of the swing nozzle (2) extends into the tank (1) through a vertical slot (32); A drive assembly is used to drive the output end of the oscillating nozzle (2) to oscillate longitudinally and reciprocally; Water delivery assembly for delivering water flow to the oscillating nozzle (2).

2. The nitrogen and phosphorus treatment device for lake sediments according to claim 1, characterized in that: The rotating column (3) is located at one end inside the tank (1) and is connected to a stirring rod (33) along the axis. Several stirring blades (34) are connected to the stirring rod (33). The device cavity (31) has an open end that penetrates the top of the tank (1) and is connected to the outside of the tank (1); A drive motor (37) is installed on the top of the tank (1). The output end of the drive motor (37) is connected to the drive gear (36). A driven gear (35) that meshes with the drive gear (36) is connected to one side wall of the rotating column (3) outside the tank (1).

3. The nitrogen and phosphorus treatment device for lake sediments according to claim 1, characterized in that: A rotating frame (6) is fixedly connected inside the device cavity (31). A rotating shaft (7) is connected to the rotating frame (6). The swing nozzle (2) passes through the rotating shaft (7) and is installed on the rotating shaft (7). A hinged sleeve (8) slides on the outer wall of the swing nozzle (2) near the input end.

4. The nitrogen and phosphorus treatment device for lake sediments according to claim 3, characterized in that: The drive assembly includes a drive rod (41), a connecting plate (42), a rotating base one (43), a rotating base two (44), a lifting tube (45), and a telescopic rod (46). One end of the driving rod (41) is hinged to the hinge sleeve (8), the connecting plate (42) is connected to the other end of the driving rod (41), the rotating base (43) is connected to the connecting plate (42), a stabilizing plate (47) is fixedly connected inside the device cavity (31), the driving rod (41) passes through the stabilizing plate (47) and is slidably connected to the stabilizing plate (47), a suspension (48) is connected to the top of the tank (1), and a sliding tube (9) is fixedly connected to the suspension (48). The lifting tube (45) passes through the sliding tube (9) and is slidably connected to the sliding tube (9). A through-slot (49) is provided on the side wall of the lifting tube (45). The second rotating base (44) is connected to one end of the lifting tube (45), and the second rotating base (44) is rotatably connected to the first rotating base (43). The telescopic rod (46) is installed on the suspension (48). The movable end of the telescopic rod (46) passes through the suspension (48) and is connected to the lifting tube (45).

5. The nitrogen and phosphorus treatment device for lake sediments according to claim 1, characterized in that: The water delivery assembly includes a hose (51), a lower conduit (52), an upper conduit (53), and a water pump (54). The lower conduit (52) passes through the stabilizing plate (47) and is connected to the stabilizing plate (47). The input end of the hose (51) is connected to the output end of the lower conduit (52). The output end of the hose (51) is connected to the input end of the swing nozzle (2). The lower conduit (52) and the upper conduit (53) are connected by a rotary joint (55). The upper conduit (53) is connected to the sliding pipe (9) through a pipe rack (57). The pipe rack (57) is located in the long groove (49). The water pump (54) is installed on the tank (1). The output end of the water pump (54) is connected to the water outlet pipe (56). The input end of the upper conduit (53) is connected to the water outlet pipe (56).

6. The nitrogen and phosphorus treatment device for lake sediments according to claim 5, characterized in that: The top of the tank (1) is connected to several flow pipes (10) around the central axis of the tank (1). The flow pipes (10) penetrate the top of the tank (1). Several water spray heads (11) are connected to one end of the flow pipe (10) inside the tank (1). The top of the tank (1) is provided with an annular pipe (12). The input end of the flow pipe (10) is connected to the output end of the annular pipe (12). The input end of the annular pipe (12) is connected to the water outlet pipe (56).

7. The nitrogen and phosphorus treatment device for lake sediments according to claim 1, characterized in that: Both the rotating column (3) and the stirring rod (33) are connected to a support rod (13), and a scraper (14) is connected to one end of the support rod (13). The scraper (14) is in contact with the inner wall of the tank (1).

Images