A sedimentation tank dredging device

Abstract

The utility model discloses a kind of sedimentation tank dredging devices, including sedimentation tank, track is fixed symmetrically on sedimentation tank, further include the frame plate that can move along the length direction of track, further include dredging assembly, dredging assembly includes scraper frame, scraper frame is connected frame plate by first elastic piece sliding, scraper frame is hinged with the scraper of adjustable elasticity, closed component, closed component includes the guide slot in the bottom side of sedimentation tank, the corner of the bottom of guide slot and sedimentation tank is fixed with baffle, the lateral wall of sedimentation tank is rotatably connected with rotating plate, rotating plate can be cooperated with baffle to make guide slot form closed space, scraping component, scraping component includes cleaning plate in guide slot, cleaning plate is slidably connected sedimentation tank, the main mouth is opened in the side of guide slot, sedimentation tank is provided with the sealing plate matched with main mouth, the utility model can realize the efficient cleaning of sedimentation tank silt, and can realize layered cleaning when resistance is larger, avoid device derailment or damage due to silt resistance is larger.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a sedimentation tank sludge removal device. Background Technology

[0002] In wastewater treatment, horizontal flow sedimentation tanks are used to settle and filter wastewater. The working principle of wastewater treatment is that the mud-water mixture flows evenly into the sedimentation tank, and the sludge settles to the bottom of the sedimentation tank under the action of gravity. In order to remove the sludge from the bottom of the sedimentation tank in a timely manner and ensure the normal operation of the sedimentation tank, the sedimentation tank is generally equipped with a sludge removal device. The sludge removal device works back and forth to ensure that the sludge is effectively cleaned along the entire length and width of the sedimentation tank.

[0003] A search revealed that patent CN 214436744 U discloses a sludge scraping and suction device for a horizontal flow sedimentation tank in a wastewater treatment plant. The device includes a horizontal flow sedimentation tank, a traveling trolley, a PLC controller, and an air-lift sand suction machine. The bottom of the traveling trolley is hinged with a sludge scraper frame and a telescopic cylinder. The piston rod end of the telescopic cylinder is hinged to one side of the sludge scraper frame. A sludge scraper is installed at the bottom of the sludge scraper frame. Two sets of vertically downward ultrasonic sensors are also installed at the bottom of the traveling trolley. Calibration rings are installed on the axles of the traveling trolley.

[0004] However, the above-mentioned device also has the following problems: When using ultrasonic waves to measure the thickness of sludge, the ultrasonic sensor will change the sound wave reflection characteristics if there is grease or biofilm attached in the sedimentation tank, which will easily lead to inaccurate detection results. This will make it difficult for the device to clean up the sludge required, or it may cause excessive cleaning and waste. In addition, the high humidity environment of sewage treatment can easily damage the sensor, increasing production costs. Furthermore, when the device is scraping sludge, the increased thickness of sludge in front of the scraper will cause the ultrasonic detection to be distorted, which will also increase the number of cleaning cycles. When there is a lot of sludge in a certain area, the sludge removal resistance will increase. If the scraper height is not changed, the resistance will increase, which will cause the scraper to travel unevenly on both sides and derail, resulting in damage to the device. Utility Model Content

[0005] To address the problems in the existing technology, such as the inaccuracy of ultrasonic detection due to the significant influence of the water environment, the increased thickness of silt in front of the scraper during silt removal leading to ultrasonic detection distortion, and the damage to the device due to high resistance during silt removal, this utility model provides a sedimentation tank silt removal device to solve the problems of silt detection distortion during silt removal leading to increased cleaning frequency and silt resistance during cleaning.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] This utility model proposes a sedimentation tank sludge removal device, including a sedimentation tank with symmetrically fixed tracks, a frame plate movable along the length of the tracks, and a sludge removal assembly. The sludge removal assembly includes a scraper frame slidably connected to the frame plate via a first elastic element. The scraper frame is hinged to a spring-adjustable scraper, which can rotate when encountering resistance, causing the scraper frame to rise and reducing the moving speed of the frame plate. A sealing assembly includes a guide channel located on one side of the bottom of the sedimentation tank, with a baffle fixed to the bottom corner of the guide channel. A rotating plate is rotatably connected to the side wall of the sedimentation tank, and the rotating plate can cooperate with the baffle to form a closed space in the guide channel. A scraping assembly includes a cleaning plate located within the guide channel, slidably connected to the sedimentation tank. A main opening is provided on one side of the guide channel, and the sedimentation tank is provided with a sealing plate that cooperates with the main opening.

[0008] Preferably, the scraper frame is fixedly connected to an electromagnet, and the scraper frame is slidably connected to a ratchet bar via a second elastic element. The ratchet bar can cooperate with the electromagnet, and the scraper is provided with ratchet teeth that cooperate with the ratchet bar.

[0009] Preferably, the scraper frame is provided with a locking hole, and the frame plate is slidably connected to a locking rod via a fourth elastic element. The locking rod slides into the locking hole when the scraper frame rises. A first magnet is fixedly connected to a suitable position in the sedimentation tank. The magnetic force of the first magnet is greater than the elastic force of the fourth elastic element. The first magnet can use its magnetic force to make the locking rod slide out of the locking hole when the frame plate is reset.

[0010] Preferably, the scraper frame is fixed with a guide block, and the frame plate is fixed with an electric block. The guide block can cooperate with the electric block to make the electromagnet work.

[0011] Preferably, the frame plate is fixed with a sliding potentiometer, the sliding potentiometer is provided with a slider, and the slider is fixedly connected to the scraper frame.

[0012] Preferably, the baffle has an internal cavity structure, and a third magnet is slidably connected inside the baffle via a third elastic element. A second magnet is fixed to the scraper, and the second magnet has the same magnetic pole as the third magnet. A first switch that cooperates with the third magnet is fixed inside the baffle, and the first switch can rotate the rotating plate when it is working.

[0013] Preferably, the sedimentation tank is rotatably connected to a lead screw, and the cleaning plate is rotatably connected to the lead screw via a nut, so that the cleaning plate can slide in the guide groove when the lead screw rotates.

[0014] Preferably, the sedimentation tank has a main outlet and a secondary outlet along the length of the lead screw. One end of the lead screw extends out of the tank wall and is rotatably connected to a cleaning motor. The secondary outlet is located on one side of the cleaning motor, and the cleaning plate can cooperate with the secondary outlet.

[0015] Preferably, the sedimentation tank is fixedly connected to an electric actuator, and the shaft end of the electric actuator is fixedly connected to a sealing plate, which can cooperate with the main inlet.

[0016] Preferably, the scraper frame is fixedly connected to a guide rod, the guide rod is slidably connected to an adjustment block that can adjust the position, the scraper is slidably connected to the guide rod, and a fifth spring is inserted through the guide rod, the fifth spring being located between the scraper (13) and the adjustment block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By hinged to the scraper frame, when the scraper encounters resistance from sludge, the continuous movement of the frame causes the scraper to rotate around the hinge point, thereby raising the scraper frame. The clamping rod and clamping hole work together to constrain the scraper frame after it rises. With the cooperation of the guide block and the electric block, the electromagnet is energized to release the constraint on the scraper, thereby allowing the scraper to be reset and raised in height. This allows the upper layer of sludge in the area with resistance to be cleaned first, achieving layered cleaning, improving the cleaning efficiency of the system, and also helping to extend the service life of the device.

[0019] 2. By setting up baffles and guide channels, and utilizing the scraper to adhere to the bottom of the sedimentation tank, when the sludge at the bottom of the tank is cleaned, the scraper rotates due to the resistance of the baffles, maintaining a perpendicular state to the bottom of the sedimentation tank. Then, by utilizing the principle of like poles repelling each other, the first switch is activated, which in turn causes the rotating plate to rotate. The rotating plate and the baffle work together to form a closed space in the guide channel, reducing excessive water loss in the sedimentation tank during sludge cleaning and achieving efficient sludge cleaning.

[0020] 3. A cleaning plate that slides and cooperates with the guide channel is set on one side of the guide channel for cleaning the sludge in the guide channel. A sealing plate is slidably set on the main opening to cooperate with the main opening. A secondary opening is set at the initial position of the cleaning plate. When the cleaning plate returns to its reset position, the bottom of the guide channel is cleaned again. The secondary opening is closed by the cleaning plate, which improves the operating efficiency of the device.

[0021] 4. The guide rod fixed to the scraper frame is slidably connected to the scraper. The guide rod is slidably connected to an adjustment block that can adjust the position. A fifth spring is inserted between the scraper and the adjustment block. The initial length of the fifth spring when the scraper is working can be adjusted by the adjustment block. This allows the rotational force required for the scraper to rotate to be adjusted according to different sediments in the sedimentation tank, making the bottom of the sedimentation tank cleaner and more thorough. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0025] Figure 3 This is a utility model Figure 2 Enlarged diagram of point A

[0026] Figure 4 This is a utility model Figure 2 Schematic diagram of section B-B;

[0027] Figure 5 This is a utility model Figure 2 Diagram of the K-direction;

[0028] Figure 6 This is a utility model Figure 5 Schematic diagram of the central direction I;

[0029] Figure 7 This is a schematic diagram of the layered sludge cleaning method of this utility model;

[0030] Figure 8 This is a schematic diagram of the rotating plate closure of this utility model;

[0031] Figure 9 This is a utility model Figure 8 Internal structure diagram at point C;

[0032] Figure 10 This is a schematic diagram of the walking structure of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Sedimentation tank; 1a. Main inlet; 1b. Secondary inlet; 2. First magnet; 3. Clamping rod; 4. Clamping hole; 5. Sliding potentiometer; 6. Conductor block; 7. Electromagnetic block; 8. Scraper frame; 9. Motor; 10. Frame plate; 11. Electromagnet; 12. Ratchet; 13. Scraper; 14. Baffle; 15. Rotating plate; 16. Lead screw; 17. Cleaning plate; 18. Guide groove; 19. Sealing plate; 20. Ratchet; 21. Second magnet; 22. Third magnet; 23. First switch; 24. Second switch; 25. Electric actuator; 26. Third switch; 27. Guide rod; 28. Fifth spring; 29. ​​Adjusting block. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] Example 1:

[0037] like Figure 1 - Figure 10 As shown in the figure, this embodiment proposes a sedimentation tank sludge removal device, including a sedimentation tank 1, with tracks symmetrically fixed on the sedimentation tank 1, and a frame plate 10 that can move along the length of the tracks. A sunken guide trough 18 is provided on one side of the bottom of the sedimentation tank 1, and a baffle 14 is fixed at the bottom corner of the guide trough 18 and the bottom of the sedimentation tank 1. A rotating plate 15 is rotatably connected to the side wall of the sedimentation tank 1 that cooperates with the guide trough 18. The rotating shaft of the baffle 15 extends out of the tank wall of the sedimentation tank 1 and is rotatably connected to a closed motor. When the closed motor is working, it can drive the rotating plate 15 to rotate. The rotating plate 15 and the baffle 14 cooperate to form a closed space in the guide trough 18.

[0038] Furthermore, to better control the sedimentation tank sludge removal device, a control box is also installed on the support plate 10. The control box contains a microcontroller, which is used to control the sedimentation tank sludge removal device according to the corresponding signals.

[0039] Specifically, the enclosed motor and the control box on the bracket 10 are connected by signal lines.

[0040] Specifically, a microcontroller is an integrated circuit chip, a mature product on the market. It uses very large-scale integrated circuit technology to integrate a central processing unit (CPU) with data processing capabilities, random access memory (RAM), read-only memory (ROM), various I / O ports and interrupt systems, timers / counters, and other functions (and may also include display driver circuits, pulse width modulation circuits, analog multiplexers, A / D converters, etc.) onto a single silicon chip, forming a small but complete microcomputer system. It features small size, high integration, simple structure, reliable performance, and modular application, and is widely used in the field of industrial control through corresponding control programs.

[0041] A motor 9 is fixedly connected to the frame plate 10. The motor 9 is connected to the control box on the frame plate 10 via a signal line, thereby enabling the speed of the motor 9 to be effectively controlled by the control box. The output shaft of the motor 9 is fixedly connected to a drive wheel. The frame plate 10 is rotatably connected to several sets of walking wheels. The walking wheels are in contact with the track fixed on the sedimentation tank 1. The rotating shaft of one set of walking wheels extends outward. The rotating shaft of the walking wheel is fixedly connected to a driven wheel. The drive wheel and the driven wheel are connected by a belt drive, so that when the motor 9 is working, it drives the frame plate 10 to move along the track.

[0042] Specifically, motor 9 can rotate in both forward and reverse directions under control. It is a mature product on the market and can be selected according to needs.

[0043] The frame plate 10 is slidably connected to the scraper frame 8 via a first elastic element, which is a first spring. One end of the first spring is connected to the frame plate 10, and the other end of the first spring is connected to the scraper frame 8. The first spring is used to provide a downward holding force for the scraper frame 8. The scraper frame 8 is hinged with a scraper 13. The end of the scraper frame 13 away from the hinge point is in contact with the bottom of the sedimentation tank 1. The scraper frame 8 is slidably connected to a ratchet 12 via a second elastic element, which is a second spring. One end of the second spring is connected to the ratchet 12, and the other end of the second spring is connected to the scraper frame 8. The scraper 13 is provided with a ratchet 20 at the hinged end, which cooperates with the ratchet 12.

[0044] The scraper frame 8 is fixedly connected to a guide rod 27, which is arc-shaped. The guide rod 27 is slidably connected to an adjustment block 29. The adjustment block 29 has a threaded hole at a suitable position, and a set screw is threaded into the threaded hole. By loosening the set screw, the adjustment block 29 can slide on the guide rod 27. By tightening the set screw, the adjustment block 29 can be fixed on the guide rod 27. An auxiliary plate is fixed at a suitable position on the scraper 13. The auxiliary plate fixed to the scraper 13 is slidably connected to the guide rod 27. A fifth spring 28 is inserted through the guide rod 27. The fifth spring 28 is located between the scraper 13 and the adjustment block 29.

[0045] Specifically, the length of the fifth spring 28 is adjusted by adjusting the position of the adjusting block 29 on the guide rod 27, thereby adjusting the force required for the scraper 13 to rotate when it encounters resistance.

[0046] The scraper frame 8 is provided with a locking hole 4. The frame plate 10 is slidably connected to a locking rod 3 through a fourth elastic element. The fourth elastic element is a fourth spring. One end of the fourth spring is connected to the frame plate 10, and the other end of the fourth spring is connected to the locking rod 3. When the frame plate 10 moves, the fourth spring is in a compressed state. When the scraper frame 8 rises, the locking rod 3 slides into the locking hole 4.

[0047] Specifically, a downward-sloping plate is fixed at a suitable position on the wall of the sedimentation tank 1. The plate can guide the settled material to the area in the forward direction of the scraper 13 when the device is not working, thereby achieving effective cleaning of the sedimentation tank 1.

[0048] Specifically, an auxiliary cover can be added to the outside of the fifth spring 28. One end of the auxiliary cover is connected to the auxiliary plate of the scraper 13, and the other end of the auxiliary cover is connected to the adjusting block 29, thus forming an effective protection for the fifth spring 28.

[0049] Specifically, the upper part of the scraper 13 is also machined with several sets of small holes for water to pass through when the scraper 13 is working, so as to avoid excessive disturbance and turbidity of the sediment in the sedimentation tank 1, which would affect the cleaning effect.

[0050] Specifically, when scraper 13 is cleaning sludge, a large amount of sludge causes excessive sludge to accumulate in the forward direction of scraper 13, and the sludge at the bottom of the tank increases the continuous resistance of scraper 13. At this time, the frame plate 10 continues to move forward, causing scraper 13 to rotate around the hinge point and compress the fifth spring 28. When scraper 13 rotates, scraper frame 8 compresses the first spring and moves upward. When scraper 13 rotates, ratchet 12 and ratchet 20 engage to constrain scraper 13, keeping scraper 13 in contact with the bottom of sedimentation tank 1. When scraper 13 is at a 90-degree angle to the bottom of sedimentation tank 1, locking rod 3 slides into locking hole 4 under the action of the fourth spring, constraining scraper frame 8, forming a... Figure 7 The state shown in part ①.

[0051] The scraper frame 8 is fixedly connected to an electromagnet 11, which can cooperate with the ratchet 12. The scraper frame 8 is fixed with a guide block 6, and the frame plate 10 is fixed with an electric block 7. The guide block 6 can cooperate with the electric block 7 to make the electromagnet 11 work. When the electromagnet 11 works, the magnetic attraction force generated is greater than the elastic force of the second spring. When the guide block 6 and the electric block 7 are in contact, they are electrically connected to the electromagnet 11 through a wire. The guide block 6 and the electric block 7, and the electromagnet 11 and the control box on the frame plate 10 are connected by a signal line.

[0052] Specifically, when the scraper 13 is at a 90-degree angle to the bottom of the sedimentation tank 1, the scraper frame 8 rises. At this time, the guide block 6 comes into contact with the electric block 7, energizing the electromagnet 11. The electromagnet 11 generates a magnetic attraction, causing the ratchet 12 to compress the second spring and disengage from the ratchet 20. At this time, the frame plate 10 continues to move, and the scraper 13, under the elastic force of the fifth spring 28, can overcome the sludge resistance in the area of ​​the scraper 13 and rotate back to its original position, forming a... Figure 7 As shown in section ②, the upper layer of silt at the bottom of the pool is first scraped off.

[0053] Specifically, the electromagnet 11 is a closed type with only the wires leading out, which can prevent it from being damaged by the sewage in the sedimentation tank 1. It is a mature product on the market and can be purchased according to needs.

[0054] Specifically, the electromagnet 11 controls the change of magnetic force by changing the current. When the current passes through the coil, a magnetic field is generated, which magnetizes the iron core and thus produces magnetism. When the current is cut off, the coil loses its magnetism. It has the characteristics of simple structure and reliable performance.

[0055] Specifically, after the electromagnet 11 is de-energized, the ratchet 12 re-engages with the ratchet 20 under the elastic force of the second spring.

[0056] A sliding potentiometer 5 is fixed to the frame plate 10. The sliding potentiometer 5 is equipped with a slider, which is fixedly connected to the scraper frame 8. The sliding potentiometer 5 is connected to the control box on the frame plate 10 via a signal line. When the scraper frame 8 rises, the position of the slider of the sliding potentiometer 5 changes, causing the control box to reduce the moving speed of the frame plate 10. This prevents the scraper 13 from moving too fast when scraping sludge, which could damage the device.

[0057] A second switch 24 is fixedly connected to a suitable position in the sedimentation tank 1. The second switch 24 is connected to the control box on the frame plate 10 via a signal line. When the frame plate 10 moves to the rightmost position, the second switch 24 can be activated. After receiving the signal from the second switch 24, the control box controls the motor 9 to work in reverse, so that the frame plate 10 moves in reverse and resets.

[0058] A first magnet 2 is fixedly connected to a suitable position in the sedimentation tank 1. The magnetic force of the first magnet 2 is greater than the elastic force of the fourth spring. When the frame plate 10 is reset to the starting position, the first magnet 2 can use the magnetic force to make the locking rod 3 slide out of the locking hole 4. The scraper frame 8 is reset downward under the action of the first spring, so that the scraper 13 can re-contact the bottom of the tank. At this time, the guide block 6 and the electric block 7 are separated again. The control box controls the working state of the motor 9 according to the signals of the guide block 6 and the electric block 7. It can also ensure that the scraper 13 does not contact the bottom of the tank during the reset process of the frame plate 10, so as to avoid moving the sludge at the bottom of the sedimentation tank 1 in the opposite direction and affecting the subsequent cleaning.

[0059] The baffle 14 has a hollow cavity structure. A third magnet 22 is slidably connected inside the baffle 14 through a third elastic element, which is a third spring. One end of the third spring is connected to the baffle 14, and the other end of the third spring is connected to the third magnet 22. A second magnet 21 is fixed to the scraper 13. The second magnet 21 and the third magnet 22 have the same magnetic poles. The repulsive force generated by the second magnet 21 and the third magnet 22 is greater than the elastic force of the third spring. A first switch 23 that cooperates with the third magnet 22 is fixed inside the baffle 14. When the first switch 23 is working, it can make the rotating plate 15 rotate. The first switch 23 is connected to the control box on the frame plate 10 through a signal line.

[0060] Specifically, when scraper 13 is scraping the sludge at the bottom of sedimentation tank 1, in case one, the sludge resistance is large during the scraping process, scraper 13 rotates and becomes perpendicular to the bottom of the tank. After scraper 13 is raised, it is higher than the highest point of baffle 14. During the movement at the bottom of the tank, the slide potentiometer 5 decelerates the support plate 10. When the support plate 10 activates the second switch 24, scraper 13 has cleaned the sludge at the bottom of the tank into the guide channel 18. At this time, after receiving the signal from the second switch 24, the control box controls the motor 9 to work in reverse, so that the support plate 10 moves in reverse and resets. After the support plate 10 is reset, the control box causes the support plate 10 to move again to scrape the bottom of sedimentation tank 1. In scenario two, during the scraping process, the resistance of the sludge is relatively small. The scraper 13 rotates but is not perpendicular to the bottom of the pool, or the angle of the scraper 13 does not change. In this case, the scraper 13 remains in contact with the bottom of the pool. When it moves to the position of the baffle 14, the scraper 13 rotates due to the resistance of the baffle 14 and gradually becomes perpendicular to the bottom of the pool. At this time, the scraper 13 gradually cleans the sludge at the bottom of the pool into the guide channel 18. During the rotation of the scraper 13, the frame plate 10 gradually reduces its moving speed and activates the second switch 24, causing the frame plate 10 to move in the opposite direction and reset. The scraper 13 is affected by the reset force of the torsion spring. When the frame plate 10 resets, the scraper 13 resets to the initial angle.

[0061] Specifically, when situation two occurs, scraper 13 rotates and gradually becomes perpendicular to the bottom of the pool. The second magnet 21 gradually moves to the vicinity of the third magnet 22, forcing the third magnet 22 to compress the third spring and causing the first switch 23 to work. The first switch 23 generates a signal that is transmitted to the control box. At this time, after the control box control frame 10 completes its reset, the control box causes the motor 9 to stop rotating, which means that the sludge removal at the bottom of sedimentation tank 1 is completed.

[0062] Specifically, when situation two occurs, the first switch 23 is activated. At this time, the control box also controls the sealing motor to rotate the rotating plate 15 by 90 degrees, so that the rotating plate 15 cooperates with the baffle 14 to achieve the sealing of the guide groove 18.

[0063] A movable cleaning plate 17 is installed inside the guide channel 18. A lead screw 16 is rotatably connected to the sedimentation tank 1. At least one set of auxiliary guide rods cooperating with the lead screw 16 is also fixed inside the sedimentation tank 1. One end of the lead screw 16 extends out of the tank wall of the sedimentation tank 1 and is rotatably connected to a cleaning motor. The cleaning motor is connected to the control box on the frame plate 10 via a signal line. The cleaning plate 17 is rotatably connected to the lead screw 16 via a nut. The cleaning plate 17 is slidably connected to the auxiliary guide rods. When the lead screw 16 rotates, it allows the cleaning plate 17 to slide within the guide channel 18. The cleaning motor side... A secondary opening 1b is opened on the wall of sedimentation tank 1, and a main opening 1a is opened on the side of sedimentation tank 1 away from the cleaning motor. The cleaning plate 17 can cooperate with the secondary opening 1b and can close the secondary opening 1b. A third switch 26 is also fixed at a suitable position of the secondary opening 1b. The third switch 26 is connected to the control box on the frame plate 10 through a signal line. An electric push rod 25 is fixedly connected at a suitable position of the wall of sedimentation tank 1. A sealing plate 19 is fixedly connected to the shaft end of the electric push rod 25. The sealing plate 19 is slidably connected to sedimentation tank 1 and can cooperate with the main opening 1a.

[0064] Furthermore, the sealing plate 19 is C-shaped, and the outer wall of the sedimentation tank 1 is provided with matching grooves. The sealing plate 19 matches the grooves on the wall of the sedimentation tank 1, which can prevent leakage at the sealing plate 19 at the main outlet 1a due to excessive water pressure above.

[0065] Specifically, when the first switch 23 is working, the control box, through its built-in program, causes the cleaning motor and electric push rod 25 to start with a delay. Upon startup, the electric push rod 25 is activated first, causing the sealing plate 19 to slide open and the main opening 1a to open. At this time, the sludge in the guide channel 18 after the sealing plate 15 is closed flows out of the guide channel 18 under the influence of some internal water flow. The control box then starts the cleaning motor, causing the lead screw 16 to rotate, which in turn causes the cleaning plate 17 to remove the sludge from the guide channel 18. The control box adjusts the cleaning motor's operation based on the length of the lead screw 16 and... The cleaning motor rotates to the speed of the cleaning plate 17. When the cleaning plate 17 moves to the main port 1a area, the cleaning motor rotates in the opposite direction to reset the cleaning plate 17. When the cleaning plate 17 is reset, the remaining sludge in the guide groove 18 is cleaned out through the secondary port 1b. When the third switch 26 is activated, the cleaning plate 17 is reset and the secondary port 1b is closed. At the same time, the electric push rod 25 is activated to close the sealing plate 19 and close the main port 1a. After the main port 1a is closed, the control box controls the sealing motor to rotate the sealing plate 15 and reopen the guide groove 18.

[0066] Specifically, the sludge removed from the main outlet 1a and the secondary outlet 1b is transferred to a suitable location for treatment in accordance with environmental standards with the help of subsequent auxiliary or guiding tools. The subsequent auxiliary or guiding tools are mature technologies such as pipelines or sludge pumps, which are mature products on the market and are not shown in the figure.

[0067] Furthermore, to better enable the lead screw 16 to work, the lead screw 16 is fitted with a protective cover that cooperates with the cleaning plate 17. One end of the protective cover is connected to the cleaning plate 17, and the other end of the protective cover is connected to the wall of the sedimentation tank 1, thus forming an effective protection for the lead screw 16.

[0068] Specifically, the first switch 23, the second switch 24, and the third switch 26 are push-button spring switches, which are mature products on the market and can be selected according to needs.

[0069] Specifically, a push-button spring switch typically consists of a push button, a spring, a mounting base, and conductive contacts. The push button is usually made of plastic or metal and possesses a certain degree of pressing performance and mechanical strength. The spring's function is to allow the button to automatically return to its original position and to ensure its elasticity when pressed. The mounting base is used to secure the button and spring, ensuring their positions do not change. The conductive contacts are the crucial part connecting the circuit; pressing the button connects or disconnects the circuit through the contacts, thus achieving the switch function.

[0070] Specifically, both the sealing motor and the cleaning motor can rotate in both directions under control. They are mature products on the market, and you can choose to purchase them according to your needs.

[0071] It should be noted that this utility model is also equipped with a power supply, which provides power to the control box, the closed motor, the cleaning motor, the sliding potentiometer 5, the motor 9, the electromagnet 11, the electric push rod 25, the first switch 23, the second switch 24 and the third switch 26 via power lines. These are essential energy sources and are not shown in the figure.

[0072] Working principle and usage process of this utility model:

[0073] S1: Based on the working nature of sedimentation tank 1 and the classification of sedimented sludge, adjust the length of the fifth spring 28 by adjusting block 29 and adjust the force of scraper 13 when rotating;

[0074] When the motor 9 is started by the control box, the support plate 10 moves, driving the scraper 3 to clean the bottom of the sedimentation tank 1.

[0075] S2: When the scraper 3 encounters significant resistance while cleaning sludge, it rotates and compresses the fifth spring 28, forming a 90-degree angle with the bottom of the pool. At this time, the scraper frame 8 rises, the motor 9 speed decreases, and the locking rod 3 slides into the locking hole 4. Simultaneously, the electromagnet 11 operates, causing the scraper 3 to reset under the action of the fifth spring 28. At this time, the frame plate 10 moves, allowing the scraper 3 to clean the upper layer of sludge at the bottom of the pool, achieving layered cleaning.

[0076] S3: When the frame plate 10 contacts the second switch 24, the control motor 9 reverses, causing the frame plate 10 to reset. Under the action of the lever 3, the scraper 13 does not contact the bottom of the pool.

[0077] When the frame plate 10 returns to the area of ​​the first magnet 2, the first magnet 2 causes the locking rod 3 to compress the fourth spring and slide out of the locking hole 4. Under the action of the first spring, the scraper 13 returns to contact the bottom of the tank. At this time, the guide block 6 and the electric block 7 separate, and the ratchet 12 re-engages with the ratchet 20. The control box causes the motor 9 to rotate forward again according to the signal feedback, driving the frame plate 10 to make the scraper 13 clean the sedimentation tank again.

[0078] S4: When scraper 13 remains in contact with the bottom of the pool and moves to the position of baffle 14, scraper 3 compresses the fifth spring 28 and rotates to a 90-degree angle with the bottom of the pool. The second magnet 21 causes the third magnet 22 to move and the first switch 23 to work. After the signal of the first switch 23 is fed back to the control box, the control box causes the sealing motor to work, completing the sealing of the guide trough 18.

[0079] S5: In step S4, the scraper 3 rotates to reduce the speed of the motor 9, and at the same time, the clamp 3 slides into the clamp hole 4, which simultaneously enables the electromagnet 11 to work, causing the ratchet 12 to disengage from the ratchet 20.

[0080] When the second switch 24 is activated by the bracket plate 10, the bracket plate 10 is reset under the action of the control box. At the same time, when the bracket plate 10 is reset, the scraper 13 is reset under the action of the fifth spring 28 and disengages from the bottom of the pool.

[0081] S6: Simultaneously with step S5, after the signal from the first switch 23 is fed back to the control box, the control box starts the cleaning motor and electric push rod 25 after a delay. The electric push rod 25 causes the sealing plate 19 to open the main port 1a, and the cleaning motor causes the cleaning plate 17 to complete the cleaning of the guide groove 18 through the lead screw 16.

[0082] When the control box controls the cleaning motor to reverse and reset the cleaning plate 17, the cleaning plate 17 completes the secondary cleaning of the guide groove 18 through the secondary port 1b. When the cleaning plate 17 activates the third switch 26, the cleaning motor stops working, and the secondary port 1b is closed.

[0083] Then the control box activates the electric actuator to reclose the main opening 1a with the sealing plate 19. Then the control box activates the sealing motor to rotate the sealing plate 15 and reopen the guide groove 18.

[0084] S7: While cleaning the guide groove 18 in step S6, when the frame plate 10 is reset to the area of ​​the first magnet 2, the first magnet 2 causes the clamping rod 3 to compress the fourth spring and slide out of the clamping hole 4. Under the action of the first spring, the scraper 13 resets and re-contacts the bottom of the pool. At this time, the guide block 6 and the electric block 7 separate. The control box stops the motor 9 from rotating according to the signal feedback, thus completing the reset of the frame plate 10.

[0085] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sedimentation tank sludge removal device, comprising a sedimentation tank (1), wherein tracks are symmetrically fixed on the sedimentation tank (1), and further comprising a frame plate (10) movable along the length direction of the tracks, characterized in that, include: The dredging assembly includes a scraper frame (8), which is slidably connected to the frame plate (10) via a first elastic element. The scraper frame (8) is hinged with a spring-adjustable scraper (13). When the scraper (13) encounters resistance, it can rotate to raise the scraper frame (8) and reduce the moving speed of the frame plate (10). The enclosure includes a guide channel (18) located on one side of the bottom of the sedimentation tank (1), a baffle (14) fixed to the bottom corner of the guide channel (18), and a rotating plate (15) rotatably connected to the side wall of the sedimentation tank (1). The rotating plate (15) can cooperate with the baffle (14) to form an enclosed space in the guide channel (18). The scraping assembly includes a cleaning plate (17) located in the guide groove (18), the cleaning plate (17) being slidably connected to the sedimentation tank (1), a main opening (1a) being provided on one side of the guide groove (18), and a sealing plate (19) being provided in the sedimentation tank (1) to cooperate with the main opening (1a).

2. The sedimentation tank sludge removal device according to claim 1, characterized in that: The scraper frame (8) is fixedly connected to an electromagnet (11), and the scraper frame (8) is slidably connected to a ratchet (12) through a second elastic element. The ratchet (12) can cooperate with the electromagnet (11), and the scraper (13) is provided with ratchet teeth (20) that cooperate with the ratchet (12).

3. The sedimentation tank sludge removal device according to claim 1, characterized in that: The scraper frame (8) is provided with a locking hole (4), and the frame plate (10) is slidably connected to a locking rod (3) through a fourth elastic element. When the scraper frame (8) rises, the locking rod (3) slides into the locking hole (4). A first magnet (2) is fixedly connected to a suitable position in the sedimentation tank (1). The magnetic force of the first magnet (2) is greater than the elastic force of the fourth elastic element. When the frame plate (10) is reset, the first magnet (2) can use magnetic force to make the locking rod (3) slide out of the locking hole (4).

4. The sedimentation tank sludge removal device according to claim 2, characterized in that: The scraper frame (8) is fixed with a guide block (6), and the frame plate (10) is fixed with an electric block (7). The guide block (6) can cooperate with the electric block (7) to make the electromagnet (11) work.

5. The sedimentation tank sludge removal device according to claim 1, characterized in that: The frame plate (10) is fixed with a sliding potentiometer (5), the sliding potentiometer (5) is provided with a slider, and the slider is fixedly connected to the scraper frame (8).

6. The sedimentation tank sludge removal device according to claim 1, characterized in that: The baffle (14) has a hollow structure inside. A third magnet (22) is slidably connected inside the baffle (14) through a third elastic element. A second magnet (21) is fixed to the scraper (13). The second magnet (21) and the third magnet (22) have the same magnetic poles. A first switch (23) that cooperates with the third magnet (22) is fixed inside the baffle (14). When the first switch (23) is working, it can make the rotating plate (15) rotate.

7. The sedimentation tank sludge removal device according to claim 1, characterized in that: The sedimentation tank (1) is rotatably connected to a lead screw (16), and the cleaning plate (17) is rotatably connected to the lead screw (16) through a nut. When the lead screw (16) rotates, the cleaning plate (17) can slide in the guide groove (18).

8. The sedimentation tank sludge removal device according to claim 7, characterized in that: The sedimentation tank (1) has a main port (1a) and a secondary port (1b) along the length of the lead screw (16). One end of the lead screw (16) extends out of the tank wall of the sedimentation tank (1) and is rotatably connected to a cleaning motor. The secondary port (1b) is located on one side of the cleaning motor, and the cleaning plate (17) can cooperate with the secondary port (1b).

9. The sedimentation tank sludge removal device according to claim 8, characterized in that: The sedimentation tank (1) is fixedly connected to an electric actuator (25), and the shaft end of the electric actuator (25) is fixedly connected to a sealing plate (19), which can cooperate with the main port (1a).

10. The sedimentation tank sludge removal device according to claim 1, characterized in that: The scraper frame (8) is fixedly connected to a guide rod (27), the guide rod (27) is slidably connected to an adjustment block (29) that can adjust the position, the scraper (13) is slidably connected to the guide rod (27), and a fifth spring (28) is inserted through the guide rod (27). The fifth spring (28) is located between the scraper (13) and the adjustment block (29).

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