Sedimentation tank wall cleaning device and siphon sludge suction machine

Abstract

This utility model provides a sedimentation tank wall cleaning device and a siphon sludge suction machine. The device is fixedly installed on a gantry-type siphon sludge suction machine and includes: a controller, a drive motor, a cleaning brush, a first sensor, and a second sensor. The controller receives a first sensing signal from the first sensor and a second sensing signal from the second sensor when the gantry-type siphon sludge suction machine is running along the tank wall. Based on the first and second sensing signals, if no obstacle is detected, the controller controls the drive motor to operate. When the gantry-type siphon sludge suction machine moves back and forth laterally along the track above the sedimentation tank to suction sludge, the sedimentation tank wall cleaning device can automatically and thoroughly clean the sedimentation tank wall, greatly reducing manual labor intensity, improving the cleaning efficiency of the sedimentation tank wall, avoiding safety risks associated with manual operation, and improving the cleaning safety of the sedimentation tank wall.

Description

Technical Field

[0001] This utility model relates to the field of automatic control technology, and in particular to a sedimentation tank wall cleaning device. Background Technology

[0002] As a core unit of the water treatment process, the horizontal flow coagulation sedimentation tank in a water plant is highly susceptible to the growth of algae, moss, and other attached organisms on its walls. This biological attachment not only damages the clean appearance of the treatment structure but also leads to multiple operational hazards, thus requiring regular cleaning of the tank walls.

[0003] Existing methods generally rely on manual cleaning, which is inefficient. Utility Model Content

[0004] This invention provides a sedimentation tank wall cleaning device and a siphon sludge suction machine to improve the cleaning efficiency of sedimentation tank walls.

[0005] This utility model provides a sedimentation tank wall cleaning device, which is fixedly installed on a gantry-type siphon sludge suction machine. The device includes: a controller, a drive motor, a cleaning brush, a first sensor, and a second sensor.

[0006] The output end of the drive motor is connected to the cleaning brush and is used to drive the cleaning brush to rotate.

[0007] The first sensor and the second sensor are respectively disposed on the front and rear sides of the cleaning brush along the running direction of the pool wall, and are used to detect whether there are obstacles in front of or behind the cleaning brush;

[0008] The controller is communicatively connected to the first sensor, the second sensor, and the drive motor, and is used to receive a first sensing signal sent by the first sensor and a second sensing signal sent by the second sensor when the gantry siphon sludge suction machine is running along the pool wall. Based on the first sensing signal and the second sensing signal, if no obstacle is detected, the controller controls the drive motor to work.

[0009] According to the present invention, a sedimentation tank wall cleaning device is provided, wherein the controller includes a comparison circuit, and the controller is specifically used for:

[0010] Receives a first sensing signal sent by the first sensor and a second sensing signal sent by the second sensor;

[0011] Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that neither the first sensor nor the second sensor has detected an obstacle, a start signal is sent to the drive motor. The start signal is used to control the drive motor to work. The preset signal is a reference signal when the sensor detects an obstacle.

[0012] According to the sedimentation tank wall cleaning device provided by this utility model, the controller is further used for:

[0013] Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that at least one of the first sensor or the second sensor has detected an obstacle, a stop signal is sent to the drive motor. The stop signal is used to control the drive motor to stop working.

[0014] The sedimentation tank wall cleaning device provided by this utility model further includes: a lifting mechanism;

[0015] The lifting mechanism is connected to the controller and is used to support the cleaning brush.

[0016] According to the sedimentation tank wall cleaning device provided by this utility model, the controller is further used for:

[0017] Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that neither the first sensor nor the second sensor has detected an obstacle, a lifting signal is sent to the lifting mechanism. The lifting signal is used to control the lifting mechanism to raise the cleaning brush by a preset length.

[0018] According to the sedimentation tank wall cleaning device provided by this utility model, the controller is further used for:

[0019] Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that at least one of the first sensor or the second sensor has detected an obstacle, a descent signal is sent to the lifting mechanism. The descent signal is used to control the lifting mechanism to lower the cleaning brush to the working position.

[0020] A sedimentation tank wall cleaning device according to the present invention further includes: a timer;

[0021] The timer is connected to the controller and is used to send a start / stop signal to the controller based on a set working duration. The start / stop signal is used to control the running time of the drive motor.

[0022] According to the present invention, a sedimentation tank wall cleaning device is provided, wherein the length of the cleaning brush is determined based on the depth of the sedimentation tank.

[0023] According to the present invention, a sedimentation tank wall cleaning device is provided, wherein the sedimentation tank wall cleaning device is fixed on the gantry-type siphon sludge suction machine by means of a mounting bracket, and the mounting bracket enables the cleaning brush to be in close contact with the wall of the sedimentation tank when working.

[0024] This utility model also provides a siphon sludge suction machine, including a sedimentation tank wall cleaning device as described in any of the above claims, wherein the sedimentation tank wall cleaning device is fixedly installed on the siphon sludge suction machine.

[0025] The sedimentation tank wall cleaning device and siphon sludge suction machine provided by this utility model involve fixing a cleaning device for cleaning the sedimentation tank wall onto a gantry-type siphon sludge suction machine. While the gantry-type siphon sludge suction machine moves back and forth along the track above the sedimentation tank to suction sludge, the sedimentation tank wall cleaning device can automatically perform a comprehensive cleaning of the sedimentation tank wall, greatly reducing manual labor intensity, improving the cleaning efficiency of the sedimentation tank wall, avoiding safety risks associated with manual operation, and enhancing the safety of sedimentation tank wall cleaning. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the sedimentation tank wall cleaning device provided by this utility model.

[0028] Figure 2 This is a schematic diagram of the working state of the cleaning brush provided by this utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] As a core unit of the water treatment process, the horizontal flow coagulation sedimentation tank in a water plant is highly susceptible to the growth of algae, mosses, and other attached organisms on its walls. The green or brown biofilm formed on the tank walls exhibits a distinct seasonal pattern, especially during the spring and summer months when sunlight is abundant and water temperatures are high. Algae (such as filamentous green algae and diatoms) and cyanobacteria secrete gelatinous substances that intertwine, forming a dense attachment layer 2-5 cm thick. In winter, however, mosses become the dominant growth species. This biological attachment not only ruins the clean appearance of the treatment structures but also leads to multiple operational risks: extracellular polymers produced by algal metabolism accelerate the adhesion and deposition of suspended solids; some algae detach and enter the effluent system, directly affecting key water quality indicators such as turbidity and chemical oxygen demand (COD); and some toxic cyanobacteria may even pose a risk of secondary pollution.

[0031] The manual method for cleaning pool walls faces significant challenges. From a workload perspective, conventional pool wall cleaning requires five workers to perform 4-6 hours of intensive labor in narrow passages with an average width of only 30cm, and this work must be repeated every 3-5 days to address the rapidly regenerating biofilm. From a safety perspective, workers must operate on slippery concrete pool walls (3-4m deep), posing significant risks of falls, slips, and drowning. This labor-intensive maintenance model is no longer sufficient to meet the dual demands of modern water plants for operational efficiency and safety standards.

[0032] To address the shortcomings of related methods, this utility model provides a sedimentation tank wall cleaning device. Figure 1 This is a schematic diagram of the sedimentation tank wall cleaning device provided by this utility model, as shown below. Figure 1 As shown, the device includes: a controller 101, a drive motor 102, a cleaning brush 103, a first sensor 104, and a second sensor 105.

[0033] It should be noted that the sedimentation tank wall cleaning device is fixedly installed on the gantry siphon sludge suction machine. When the gantry siphon sludge suction machine runs along the tank wall, the sedimentation tank wall cleaning device runs synchronously to perform the cleaning work on the sedimentation tank wall.

[0034] It should be noted that the gantry siphon sludge suction machine consists of a gantry (mobile bridge), a siphon pipe system, a drive unit, a sludge suction nozzle, and control components. It achieves continuous sludge suction and discharge through the siphon principle. At the same time, the gantry moves back and forth along the track on the sedimentation tank, covering the entire bottom surface of the sedimentation tank.

[0035] By adding a sedimentation tank wall cleaning device to the gantry-type siphon sludge suction machine, an integrated design of the sedimentation tank wall cleaning device and the gantry-type siphon sludge suction machine is achieved. This allows the sedimentation tank wall cleaning device to simultaneously clean the sedimentation tank walls while the gantry-type siphon sludge suction machine siphons and discharges sludge along the tank wall. This satisfies both the aesthetic requirements of cleaning the sedimentation tank walls and solves the problem of high manual labor intensity.

[0036] Specifically, the sedimentation tank wall cleaning device includes a controller, a drive motor, cleaning brushes, a first sensor, and a second sensor. The power supply for the sedimentation tank wall cleaning device can be achieved using a gantry-type siphon sludge suction machine.

[0037] Drive motor: The output end of the drive motor is connected to the cleaning brush drive to drive the cleaning brush to rotate. A waterproof geared motor can be used, with its output end connected to the cleaning brush shaft via a coupling to provide stable rotational power. The motor power is customized according to the pool wall material and the type of dirt to ensure that the brush speed is adjustable from 50-200 rpm, balancing cleaning power and equipment lifespan. The drive motor can be controlled for speed and direction, and can be adjusted according to different scenarios, seasons, and working conditions. Speed ​​control reduces energy consumption, and direction switching enables automatic brush cleaning, preventing aquatic plants and other attachments from entangled and affecting the cleaning effect.

[0038] Cleaning brushes: These can be made of corrosion-resistant polypropylene or stainless steel wire bundles, arranged in a spiral pattern to enhance scraping effect. The brush diameter is slightly smaller than the radius of curvature of the pool wall to ensure a close fit, and it features a detachable structure for easy replacement and maintenance. A diagram illustrating the working state of the cleaning brushes can be found as follows: Figure 2 The schematic diagram of the working state of the cleaning brush provided by this utility model is shown.

[0039] Controller: Logic control functions can be implemented through PLC programming. Sensors can be connected to the controller of the gantry siphon sludge suction machine. When the gantry siphon sludge suction machine starts working, its controller sends a trigger signal to the controller of the sedimentation tank wall cleaning device. After receiving the trigger signal, the controller of the sedimentation tank wall cleaning device starts the drive motor to drive the cleaning brushes to rotate and clean the tank wall, achieving thorough cleaning without dead angles.

[0040] The first and second sensors can be implemented based on ultrasonic sensors. The first and second sensors added to the sedimentation tank wall cleaning device are installed on the front and rear sides of the cleaning brush running direction, respectively, forming a bidirectional detection system that can detect potential obstacles (such as effluent weirs) in the tank wall environment in real time.

[0041] Optionally, the sensor can employ ultrasonic or infrared non-contact detection technology, calculating the distance to obstacles by emitting signals and receiving reflected waves. When an obstacle is detected in front or behind and the distance is less than a safety threshold (usually set at 20-50cm), the sensor immediately sends an electrical signal to the controller, triggering the avoidance logic.

[0042] When the gantry-type siphon sludge suction machine runs along the tank wall, the controller of the sedimentation tank wall cleaning device continuously receives the first sensing signal from the first sensor and the second sensing signal from the second sensor.

[0043] By analyzing the first and second sensing signals, it can be determined whether there are obstacles at the first sensor (front) and the second sensor (rear). Based on the received sensing information, if the controller determines that there are no obstacles, it considers the current path safe and then starts the drive motor to rotate the cleaning brush, performing the pool wall cleaning task. This ensures that the brush only operates under unobstructed conditions.

[0044] When the drive motor is working, it drives the cleaning brushes to rotate, thus cleaning the walls of the sedimentation tank. It can be understood that the gantry-type siphon sludge suction machine moves laterally along the track above the sedimentation tank, covering the entire bottom surface. Therefore, while the gantry-type siphon sludge suction machine is performing siphon sludge suction, the sedimentation tank wall cleaning device can circle the sedimentation tank, thoroughly cleaning its walls.

[0045] The sedimentation tank wall cleaning device provided by this utility model consists of a cleaning device fixedly installed on a gantry-type siphon sludge suction machine for cleaning the sedimentation tank walls. While the gantry-type siphon sludge suction machine moves back and forth along the track above the sedimentation tank to suction sludge, the sedimentation tank wall cleaning device can automatically perform a comprehensive cleaning of the sedimentation tank walls, greatly reducing manual labor intensity, improving the cleaning efficiency of the sedimentation tank walls, and avoiding safety risks associated with manual operation, thus enhancing the safety of sedimentation tank wall cleaning.

[0046] In one embodiment, the controller includes a comparison circuit, specifically configured to: receive a first sensing signal sent by the first sensor and a second sensing signal sent by the second sensor; based on the comparison circuit, compare the first sensing signal and the second sensing signal with a preset signal respectively; if it is determined that neither the first sensor nor the second sensor has detected an obstacle, send a start signal to the drive motor, the start signal being used to control the drive motor to operate; the preset signal is a reference signal when the sensor detects an obstacle.

[0047] When the gantry-type siphon sludge suction machine runs along the tank wall, the controller of the sedimentation tank wall cleaning device continuously receives the first sensing signal from the first sensor (front side) and the second sensing signal from the second sensor (rear side).

[0048] The controller's comparison circuit judges the first and second sensing signals acquired in real time, and can determine whether there are obstacles at the first sensor (front side) and the second sensor (rear side).

[0049] Specifically, after receiving the first and second sensing signals, the comparator circuit uses a dual-channel comparator circuit to compare the first sensing signal (which can be a voltage signal) V1 output by the first sensor (such as an ultrasonic sensor) with a preset signal Vth1 (corresponding to a safe distance threshold, such as 9V), and the voltage signal V2 output by the second sensor (such as an ultrasonic sensor) with the preset signal Vth1 in real time. The comparator circuit determines that neither sensor has detected an obstacle if and only if V1 ≥ Vth1 and V2 ≥ Vth1. In this case, the dual comparator outputs a high-level signal, which, after being integrated by the AND gate chip logic, generates a valid start signal.

[0050] In one embodiment, the controller is further configured to: based on the comparison circuit, compare the first sensing signal and the second sensing signal with a preset signal respectively, and if it is determined that at least one of the first sensor or the second sensor has detected an obstacle, send a stop signal to the drive motor, the stop signal being used to control the drive motor to stop working.

[0051] Based on the received sensor signals, if the controller determines that at least one of the first or second sensors has detected an obstacle, it indicates that an obstacle exists in the tank wall. In this case, since the cleaning brushes of the sedimentation tank wall cleaning device are in contact with the sedimentation tank wall, obstacle avoidance measures are required to prevent the cleaning brushes from colliding with the obstacle.

[0052] Specifically, after receiving the first and second sensing signals, the comparator circuit can use a dual-channel comparator circuit to compare the first sensing signal (which can be a voltage signal) V1 output by the first sensor (such as an ultrasonic sensor) with a preset signal Vth1 (corresponding to a safe distance threshold, such as 9V), and the voltage signal V2 output by the second sensor (such as an ultrasonic sensor) with the preset signal Vth1 in real time. When V1 < Vth1 and / or V2 < Vth1, the comparator circuit determines that at least one of the first or second sensors has detected an obstacle, and at this time, the dual comparator outputs a stop signal.

[0053] It should be noted that obstacles on the sedimentation tank wall can be effluent weirs. Effluent weirs are typically located on the upper part of the sedimentation tank wall and are used to control the effluent water level and evenly distribute the water flow. Their structure includes weir plates, toothed grooves, or overflow outlets. Some weir plates are designed to be higher than the tank wall plane, and the cleaning brushes may directly collide with them during operation. Therefore, during the operation of the sedimentation tank wall cleaning device, it is necessary to identify obstacles to the effluent weir to avoid collisions.

[0054] In one embodiment, it further includes a lifting mechanism; the lifting mechanism is connected to the controller and is used to carry the cleaning brush.

[0055] A lifting mechanism is added to the sedimentation tank wall cleaning device. This lifting mechanism can consist of an electric push rod, a guide rail slider assembly, or a gear and rack transmission system. Its bottom is fixed to the gantry beam, and its top supports the cleaning brushes and drive motor. The lifting mechanism is controlled by a controller, and the lifting stroke range can be designed according to the size of obstacles in the sedimentation tank to adapt to changes in the tank wall height and obstacle avoidance requirements of different sedimentation tanks.

[0056] Optionally, the housing of the lifting mechanism can be made of 304 stainless steel, and key components (such as push rods) can be coated with epoxy resin, achieving an IP68 protection rating, and can be submerged in sewage for extended periods.

[0057] Overload protection: Built-in torque sensor automatically triggers the motor to stop and alarm when the brush encounters abnormal resistance (such as jamming) to avoid mechanical damage.

[0058] Based on the lifting mechanism, the obstacle avoidance process of the sedimentation tank wall cleaning device can be realized. It is suitable for situations where there are obstacles such as effluent weirs on the tank wall. The lifting mechanism enables the obstacle avoidance process of the sedimentation tank wall cleaning device to avoid collisions with obstacles in the sedimentation tank wall.

[0059] In one embodiment, the controller is further configured to: based on the comparison circuit, compare the first sensing signal and the second sensing signal with a preset signal respectively, and if it is determined that neither the first sensor nor the second sensor has detected an obstacle, send a lifting signal to the lifting mechanism, the lifting signal being used to control the lifting mechanism to raise the cleaning brush by a preset length.

[0060] The controller makes a judgment based on the sensing information received from the first and second sensors. If it determines that at least one of the first or second sensors has detected an obstacle, it sends a lift signal to the lifting mechanism. The lift signal controls the lifting mechanism to raise the cleaning brush to a preset length so that the cleaning brush avoids the obstacle, thereby realizing the obstacle avoidance process. The preset length can be set in advance according to the size of the obstacle.

[0061] Because the gantry-type siphon sludge suction machine is continuously moving, it can overcome obstacles after being raised for a period of time. After the sensor sends a signal indicating that the obstacle has descended, the controller can control the lifting mechanism to lower the cleaning brushes to the working position to continue the cleaning process on the pool wall.

[0062] In one embodiment, the controller is further configured to: compare the first sensing signal and the second sensing signal with a preset signal based on the comparison circuit, and if it is determined that at least one of the first sensor or the second sensor has detected an obstacle, send a descent signal to the lifting mechanism, the descent signal being used to control the lifting mechanism to lower the cleaning brush to the working position.

[0063] The controller makes a judgment based on the sensing information received from the first sensor and the second sensor. If it is determined that at least one of the first sensor or the second sensor has detected an obstacle, the controller controls the lifting mechanism to raise the cleaning brush so that the cleaning brush avoids the obstacle, thereby realizing the obstacle avoidance process.

[0064] Because the gantry-type siphon sludge suction machine is continuously moving, it can overcome obstacles after being raised for a period of time. After the sensor sends a descent signal, the controller can control the lifting mechanism to lower the cleaning brush to the working position and control the drive motor to drive the cleaning brush to continue working, thereby continuing the cleaning process of the pool wall. The descent position can be preset according to the size of the obstacle.

[0065] In one embodiment, it further includes: a timer; the timer is connected to the controller and is used to send a start / stop signal to the controller based on a set working duration to control the running time of the drive motor.

[0066] The sedimentation tank wall cleaning device may also include a timer, which is connected to the controller.

[0067] The timer can be set to work duration based on the cleaning needs of the staff.

[0068] After the timer is set to operate for a set duration, it can send start / stop signals to the controller to control the start / stop time of the drive battery. Based on the timer, the running time of the drive motor can be set as needed.

[0069] In one embodiment, the length of the cleaning brush is determined based on the depth of the sedimentation tank.

[0070] To accommodate the cleaning needs of sedimentation tank walls, the length of the cleaning brushes can be adjusted. The design of the cleaning brush length must be closely integrated with the depth parameters of the sedimentation tank to ensure full height coverage and efficient cleaning.

[0071] Specifically, the brush length is typically determined by subtracting a safety margin from the pool depth. For example, for a sedimentation tank with a depth of 4 meters, the brush length is designed to be 3.8 meters, with a 0.2-meter allowance reserved for installation clearance and water level fluctuation buffering. This design ensures that the brush, driven by the lifting mechanism, can scrape without dead angles within a 0.5-meter range from the bottom of the pool to below the water surface. Simultaneously, the brush adopts a segmented splicing structure (each segment 0.5-1 meter), facilitating flexible combination according to the actual pool depth and reducing customization costs. Actual measurements show that brushes adapted to the pool depth can improve the dirt removal rate and avoid the risk of secondary pollution or equipment overload due to insufficient length.

[0072] In one embodiment, the sedimentation tank wall cleaning device is fixed to the gantry-type siphon sludge suction machine by a mounting bracket, which allows the cleaning brush to be in close contact with the wall of the sedimentation tank during operation.

[0073] The mounting bracket adopts a triangular support frame structure, with the main body welded from 304 stainless steel square tubing, providing strong corrosion resistance and rigidity to meet long-term vibration conditions. The bottom of the bracket is rigidly connected to the crossbeam of the gantry-type siphon sludge suction machine via high-strength bolts, and the top is equipped with a rotatable joint to support the cleaning brushes and drive motor.

[0074] A compression spring assembly is added between the brush mounting base and the main arm of the support frame. The spring stiffness is optimized through calculation (typically 50-100 N / mm) to generate a continuous pre-pressure of 10-20 N when the brush contacts the pool wall. By adjusting the spring pre-tension, it can be adapted to the friction coefficient of different pool wall materials (such as concrete and fiberglass) to ensure uniform cleaning effect.

[0075] This utility model also provides a siphon sludge suction machine, which includes a sedimentation tank wall cleaning device. The sedimentation tank wall cleaning device is fixedly installed on the siphon sludge suction machine. When the siphon sludge suction machine moves back and forth along the track on the sedimentation tank to suction sludge, the sedimentation tank wall cleaning device can automatically perform a comprehensive cleaning of the sedimentation tank wall, which greatly reduces the intensity of manual labor and improves the cleaning efficiency of the sedimentation tank wall.

[0076] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0077] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clarifier wall cleaning device, characterized by, The device is fixedly installed on a gantry-type siphon suction sludge machine, and the device includes: a controller, a drive motor, a cleaning brush, a first sensor, and a second sensor; The output end of the drive motor is connected to the cleaning brush and is used to drive the cleaning brush to rotate. The first sensor and the second sensor are respectively disposed on the front and rear sides of the cleaning brush along the running direction of the pool wall, and are used to detect whether there are obstacles in front of or behind the cleaning brush; The controller is communicatively connected to the first sensor, the second sensor, and the drive motor, respectively. When the gantry siphon sludge suction machine is running along the pool wall, it receives a first sensing signal sent by the first sensor and a second sensing signal sent by the second sensor. Based on the first sensing signal and the second sensing signal, if no obstacle is detected, it controls the drive motor to work.

2. The clarifier wall cleaning apparatus of claim 1, wherein, The controller includes a comparison circuit, and the controller is specifically used for: Receives a first sensing signal sent by the first sensor and a second sensing signal sent by the second sensor; Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that neither the first sensor nor the second sensor has detected an obstacle, a start signal is sent to the drive motor. The start signal is used to control the drive motor to work. The preset signal is a reference signal when the sensor detects an obstacle.

3. The clarifier wall cleaning apparatus of claim 2, wherein, The controller is also used for: Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that at least one of the first sensor or the second sensor has detected an obstacle, a stop signal is sent to the drive motor. The stop signal is used to control the drive motor to stop working.

4. The clarifier wall cleaning apparatus of claim 3, wherein, Also includes: Lifting mechanism; The lifting mechanism is connected to the controller and is used to support the cleaning brush.

5. The clarifier wall cleaning apparatus of claim 4, wherein, The controller is also used for: Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that neither the first sensor nor the second sensor has detected an obstacle, a lifting signal is sent to the lifting mechanism. The lifting signal is used to control the lifting mechanism to raise the cleaning brush by a preset length.

6. The clarifier wall cleaning apparatus of claim 5, wherein, The controller is also used for: Based on the comparison circuit, the first sensing signal and the second sensing signal are compared with a preset signal respectively. If it is determined that at least one of the first sensor or the second sensor has detected an obstacle, a descent signal is sent to the lifting mechanism. The descent signal is used to control the lifting mechanism to lower the cleaning brush to the working position.

7. A clarifier wall cleaning device according to any one of claims 1-6, characterized in that, Also includes: Timer; The timer is connected to the controller and is used to send a start / stop signal to the controller based on a set working duration. The start / stop signal is used to control the running time of the drive motor.

8. The clarifier wall cleaning apparatus of any one of claims 1-6, wherein, The length of the cleaning brush is determined based on the depth of the sedimentation tank.

9. The clarifier wall cleaning apparatus of any one of claims 1-6, wherein, The sedimentation tank wall cleaning device is fixed to the gantry-type siphon sludge suction machine by a mounting bracket, and the mounting bracket allows the cleaning brush to be in close contact with the sedimentation tank wall when working.

10. A siphon suction dredger, characterized in that Includes the sedimentation tank wall cleaning device as described in any one of claims 1-9, wherein the sedimentation tank wall cleaning device is fixedly installed on the siphon sludge suction machine.

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