An automatic cleaning high pressure sludge dewatering device

Abstract

The utility model discloses an automatic cleaning's high pressure sludge dewatering equipment relates to the technical field of cleaning device. Including dewatering bin, the discharge end of dewatering bin is equipped with the sludge discharge bin and sludge discharge hopper, and the sludge discharge hopper is located below the bottom opening of sludge discharge bin. The sludge discharge bin is equipped with a cleaning pipe, the cleaning pipe is equipped with a plurality of spray heads, and the spray heads are used for spraying water flow towards the sludge discharge bin and the sludge discharge hopper. The sludge discharge hopper is equipped with a wastewater collection box, which is rotatably arranged at the bottom of the sludge discharge hopper. The wastewater collection box has a wastewater collection groove. When the spray head sprays water flow, the wastewater collection box rotates to the sludge outlet end of the sludge discharge hopper, and the sludge outlet end of the sludge discharge hopper is inserted into the wastewater collection groove. By using the utility model, the inside of the sludge discharge hopper and the sludge discharge bin can be flushed through the spray head after sludge dewatering, which is convenient to operate and facilitates the collection of the flushed wastewater, saving time and effort.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and more specifically, to an automatic cleaning high-pressure sludge dewatering device. Background Technology

[0002] Many existing sludge dewatering equipment are equipped with automatic cleaning devices to remove internal impurities from the sludge after dewatering. For example, the commonly used screw press sludge dewatering machine... Figure 1 As shown, variable-pitch spiral blades are installed in the dewatering chamber 1, and a drive motor 4 is installed on the sludge discharge chamber 3. The drive motor 4 drives the variable-pitch spiral blades to rotate through the main shaft to dewater the sludge. The dewatered sludge enters the sludge discharge chamber 3 and is then discharged through the sludge discharge hopper 6. Generally, a spray pipe 8 and a nozzle 7 are installed at the top of the dewatering chamber 1 to automatically clean the inside of the dewatering chamber 1. However, existing screw press sludge dewatering machines cannot clean the sludge discharge chamber 3 and the sludge discharge hopper 6. After each sludge dewatering, many sludge particles and other impurities adhere to the sludge discharge chamber 3 and the sludge discharge hopper 6. Generally, workers need to clean the sludge discharge hopper 6 and the sludge discharge chamber 3 with a small broom. Since the sludge discharge chamber 3 only has an opening at the bottom and is obstructed by the main shaft, cleaning the sludge discharge chamber 3 is inconvenient, time-consuming, and labor-intensive. If the nozzle is used directly to rinse the inside of the sludge discharge hopper 6 and the sludge discharge chamber 3, a large amount of water will splash during rinsing, making it difficult to collect the wastewater. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic cleaning high-pressure sludge dewatering device, which can rinse the inside of the sludge discharge hopper and sludge discharge chamber through a spray nozzle after the sludge dewatering is completed. It is easy to operate and facilitates the collection of wastewater after rinsing, saving time and labor.

[0004] The technical solution adopted in this utility model is as follows:

[0005] This application provides an automatic cleaning high-pressure sludge dewatering device, including a dewatering chamber. The discharge end of the dewatering chamber is provided with a sludge discharge chamber and a sludge discharge hopper. The bottom of the sludge discharge chamber is open and the sludge discharge hopper is located below the bottom opening of the sludge discharge chamber.

[0006] The sludge discharge chamber is equipped with a cleaning pipe, which has multiple nozzles for spraying water into the sludge discharge chamber and the sludge discharge bucket.

[0007] The sludge discharge hopper is equipped with a wastewater collection box, which is rotatably mounted at the bottom of the sludge discharge hopper and has a wastewater collection trough.

[0008] When the nozzle sprays water, the wastewater collection box rotates to the sludge discharge end of the sludge discharge hopper, and the sludge discharge end of the sludge discharge hopper is inserted into the wastewater collection tank.

[0009] Furthermore, in some embodiments of this utility model, a rotary adjusting motor is provided on the bottom side of the sludge discharge hopper, and a drive arm is provided on the wastewater collection box, the drive arm being connected to the drive shaft of the rotary adjusting motor.

[0010] Furthermore, in some embodiments of this utility model, two baffles are provided at opposite ends of the wastewater collection box, and a baffle is provided between the wastewater collection box and the two baffles; when the nozzle sprays water, the sludge discharge hopper is located between the two baffles, and the baffle is placed over the top of the sludge discharge hopper.

[0011] Furthermore, in some embodiments of this utility model, a wastewater collection box is also included. The wastewater collection box is provided with a wastewater collection hole that communicates with the wastewater collection tank. The wastewater collection hole and the wastewater collection box are connected by a wastewater collection pipe.

[0012] Furthermore, in some embodiments of this utility model, a water tank is also included, wherein a water pump is provided in the water tank, and the water pump is connected to the cleaning pipe via a water supply pipe.

[0013] Furthermore, in some embodiments of this utility model, the dehydration chamber is provided with a mounting base, the mounting base is provided with a first sliding hole, a control slider is slidably arranged in the first sliding hole in the vertical direction, and the control slider is provided with a conductive rod;

[0014] The mounting base has two conductive plates facing each other, and the conductive rod is located between the two conductive plates. When the control slider is at the lower limit of its stroke, both conductive plates abut against the conductive rod.

[0015] Furthermore, in some embodiments of this utility model, a mounting ring is also included. The mounting ring is used to fix the main shaft of the high-pressure sludge dewatering equipment. The mounting ring is located below the mounting base. A plurality of second sliding holes are evenly spaced along the circumference of the mounting ring. A magnet is slidably disposed in any of the second sliding holes. The control slider is a magnetic block. When the control slider and the magnet approach each other, the control slider and the magnet repel each other.

[0016] Furthermore, in some embodiments of this utility model, the two conductive sheets are inclined and arranged in a V-shape, the conductive rod is horizontally disposed on the top of the control slider, and the two ends of the conductive rod extend out from both sides of the control slider.

[0017] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0018] 1. During sludge dewatering, the wastewater collection box rotates to the bottom of the sludge discharge hopper. The wastewater collection box will not interfere with the discharge of the sludge discharge hopper, allowing for normal sludge dewatering operations. When the sludge needs cleaning after dewatering, rotate the wastewater collection box so that it is positioned at the sludge discharge end of the sludge discharge hopper, with the discharge end embedded in the wastewater collection tank. Then, start the water pump for cleaning. During cleaning, wastewater generated inside the sludge discharge chamber flows into the sludge discharge hopper and then, together with the wastewater in the sludge discharge hopper, flows down into the wastewater collection tank of the wastewater collection box for collection. This allows for rinsing of the sludge discharge hopper and sludge discharge chamber after sludge dewatering via nozzles. The operation is convenient, and it facilitates the collection of wastewater after rinsing, preventing splashing and saving time and labor.

[0019] 2. This application, by setting up a magnet and a control slider to work together, ensures that the water pump will not start even if the control terminal is accidentally turned on while the sludge dewatering equipment is working; when the sludge dewatering equipment stops working, the water pump can be turned on through the control terminal for flushing operations. This prevents the water pump from being accidentally turned on during the operation of the sludge dewatering equipment, thus enhancing safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a screw press sludge dewatering machine in the prior art;

[0022] Figure 2 A front view of the sludge dewatering equipment provided in this embodiment of the present invention during cleaning;

[0023] Figure 3 A front view of the sludge dewatering equipment provided in this embodiment of the utility model during sludge dewatering;

[0024] Figure 4 A partial cross-sectional view of the sludge dewatering equipment provided in this embodiment of the present invention during sludge dewatering;

[0025] Figure 5 A structural schematic diagram showing the location of the wastewater collection box provided in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the sludge discharge bin provided in an embodiment of the present utility model;

[0027] Figure 7A partial longitudinal sectional view of the main shaft position provided in an embodiment of this utility model;

[0028] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0029] Figure 9 A longitudinal sectional view of the mounting base and mounting ring during spindle rotation, provided in an embodiment of this utility model;

[0030] Figure 10 A cross-sectional view of the mounting ring provided in an embodiment of the present utility model along its radial direction;

[0031] Figure 11 A water pump installation circuit diagram provided for an embodiment of this utility model.

[0032] Icons: 1-Dewatering chamber; 2-Variable pitch spiral blade; 3-Sludge discharge chamber; 4-Drive motor; 5-Main shaft; 6-Sludge discharge hopper; 7-Spray head; 8-Water spray pipe; 9-Discharge hole; 10-Washing pipe; 11-Wastewater collection box; 12-Wastewater collection trough; 13-Water tank; 14-Water supply pipe; 15-Rotary adjustment motor; 16-Drive arm; 17-Baffle; 18-Baffle cover; 19-Wastewater collection box; 20-Wastewater collection pipe; 21-Wastewater collection hole; 22-Mounting base; 23-First sliding hole; 24-Control slider; 25-Conductive rod; 26-Conductive sheet; 27-Mounting ring; 28-Second sliding hole; 29-Magnet. Detailed Implementation

[0033] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0034] The screw press sludge dewatering machine is a commonly used sludge dewatering equipment. Its working principle involves a sludge pump transporting sludge to a flocculation mixing device. A high-molecular-weight flocculant is injected into the flocculation mixing tank, causing the sludge to react with the flocculant to form flocs. After gravity concentration by the screw press body in the dewatering chamber 1, the sludge enters the dewatering section for compression dewatering. The screw press sludge dewatering machine utilizes the screw extrusion principle of variable-pitch screw blades 2. The drive motor 4 drives the variable-pitch screw blades 2 to rotate via the main shaft 5. The powerful extrusion force generated by the changes in screw diameter and pitch, along with the tiny gap between the moving and fixed rings, enables the compression dewatering of the sludge. It can be widely used in wastewater treatment in farms, slaughterhouses, food processing plants, coal washing and chemical industries.

[0035] Example 1

[0036] Please refer to Figures 2-11This embodiment provides an automatic cleaning high-pressure sludge dewatering device, including a dewatering chamber 1. The discharge end of the dewatering chamber 1 is provided with a sludge discharge chamber 3 and a sludge discharge hopper 6. The bottom of the sludge discharge chamber 3 is open and the sludge discharge hopper 6 is located below the bottom opening of the sludge discharge chamber 3. The sludge discharge chamber 3 is provided with a discharge hole 9 on the side near the dewatering chamber 1. After the sludge is dewatered by the dewatering chamber 1, it enters the sludge discharge chamber 3 through the discharge hole 9. Then, the dewatered sludge falls into the sludge discharge hopper 6 through the bottom opening of the sludge discharge chamber 3 and is transported out.

[0037] The sludge discharge chamber 3 is equipped with a cleaning pipe 10, which has multiple nozzles 7. In this embodiment, the nozzles 7 are distributed at the top and bottom of the sludge discharge chamber 3. The nozzles 7 at the top of the sludge discharge chamber 3 spray water towards the inside of the sludge discharge chamber 3 to clean the interior. The nozzles 7 at the bottom of the sludge discharge chamber 3 spray water towards the sludge discharge hopper 6 to clean the surface of the sludge discharge hopper 6. A water tank 13 is also included, which contains a water pump. The water pump is connected to the cleaning pipe 10 via a water supply pipe 14. The water tank 13 contains clean water. During cleaning, the water pump is activated, and the clean water in the water tank 13 is transported into the cleaning pipe 10 through the water supply pipe 14, so that clean water can be sprayed from each nozzle 7 for cleaning. The sludge discharge hopper 6 is equipped with a wastewater collection box 11, which is rotatably disposed at the bottom of the sludge discharge hopper 6. The wastewater collection box 11 has a wastewater collection trough 12. In this embodiment, the wastewater collection box 11 is used to collect wastewater generated during cleaning.

[0038] In the specific implementation process, when the sludge is dewatered, the wastewater collection box 11 rotates to the bottom side of the sludge discharge hopper 6, at which time... Figure 3 and Figure 4 As shown, the wastewater collection box 11 will not interfere with the discharge of the sludge discharge hopper 6, and normal sludge dewatering operations can be carried out.

[0039] When the sludge needs to be washed after dewatering, such as Figure 2 and Figure 5 As shown, first rotate the wastewater collection box 11 so that it is rotated to the sludge discharge end of the sludge discharge hopper 6, and the sludge discharge end of the sludge discharge hopper 6 is inserted into the wastewater collection tank 12. Then, start the water pump to perform the cleaning operation. Clean water is sprayed out through each nozzle 7 to clean the inside of the sludge discharge chamber 3 and the surface of the sludge discharge hopper 6. During the cleaning process, the wastewater generated inside the sludge discharge chamber 3 flows into the sludge discharge hopper 6, and then flows down together with the wastewater in the sludge discharge hopper 6 into the wastewater collection tank 12 of the wastewater collection box 11 for collection. In this way, the sludge discharge hopper and the inside of the sludge discharge chamber can be rinsed through the nozzles after the sludge dewatering is completed. The operation is convenient and it is easy to collect the wastewater after rinsing, preventing the wastewater from splashing everywhere, saving time and effort.

[0040] Exemplary, such as Figures 2-5As shown, in some embodiments, a rotary adjusting motor 15 is provided on the bottom side of the sludge discharge hopper 6, and a drive arm 16 is provided on the wastewater collection box 11. The drive arm 16 is connected to the drive shaft of the rotary adjusting motor 15. In this embodiment, the rotary adjusting motor 15 is used to drive the wastewater collection box 11 to rotate. The rotary adjusting motor 15 can be a stepper motor and controlled by a control terminal such as a computer. Controlling the rotation of the wastewater collection box 11 by the rotary adjusting motor 15 makes operation more convenient, and the rotation angle of the wastewater collection box 11 can be controlled more precisely.

[0041] As the nozzle 7 sprays water onto the surface of the sludge discharge hopper 6 for cleaning, water may also splash off the surface of the sludge discharge hopper 6. Example, such as... Figure 2 and Figure 5 As shown, in some embodiments, two baffles 17 are provided at opposite ends of the wastewater collection box 11, and a cover 18 is provided between the wastewater collection box 11 and the two baffles 17; in this embodiment, the cover 18 can be made of elastic fabric, which is easy to deform to cover the top of the sludge discharge hopper 6. By setting the baffles 17 and the cover 18, when cleaning, after the wastewater collection box 11 is rotated to the correct position, the wastewater collection box 11 drives the two baffles 17 and the cover 18 to rotate synchronously together, such as... Figure 2 As shown, the two baffles 17 move to both sides of the sludge discharge hopper 6, while the baffle 18 is placed over the top of the sludge discharge hopper 6. In this way, even if the water sprayed by the nozzle 7 splashes, it will be blocked by the baffle 18, preventing wastewater from splashing onto the outside ground.

[0042] Exemplary, such as Figure 2 As shown, in some embodiments, a wastewater collection tank 19 is also included. The wastewater collection box 11 is provided with a wastewater collection hole 21 communicating with the wastewater collection tank 12. The wastewater collection hole 21 and the wastewater collection tank 19 are connected by a wastewater collection pipe 20. By setting up the wastewater collection tank 19, the wastewater generated during cleaning can flow into the wastewater collection pipe 20 through the wastewater collection hole 21 at the bottom of the wastewater collection tank 12, and then flow into the wastewater collection tank 19 for collection. The operation is simple and facilitates subsequent wastewater treatment, such as filtering and recycling the wastewater.

[0043] Example 2

[0044] The sludge dewatering equipment provided in this application is mainly used for cleaning operations after sludge dewatering. If the water pump is accidentally turned on for cleaning during the sludge dewatering process, clean water will be sprayed onto the dewatered sludge after spraying out through nozzle 7, affecting the dryness of the sludge and easily causing rework. To prevent the water pump from being accidentally turned on, please refer to [reference needed]. Figure 4 , Figures 7-11In this embodiment, based on embodiment 1, a mounting base 22 is provided inside the dehydration chamber 1. The mounting base 22 has a first sliding hole 23, and a control slider 24 is slidably arranged vertically inside the first sliding hole 23. The control slider 24 has a conductive rod 25. Two conductive pieces 26 are arranged opposite each other inside the mounting base 22. The conductive rod 25 is located between the two conductive pieces 26, and when the control slider 24 is at the lower limit of its stroke, both conductive pieces 26 abut against the conductive rod 25. In this embodiment, the control slider 24 is a magnetic block, and the conductive rod 25 and the conductive pieces 26 are both made of copper with good conductivity.

[0045] In this embodiment, one conductive sheet 26, the conductive rod 25, another conductive sheet 26, and the water pump are connected in series. This series structure is used to connect a control terminal, which can be a computer or other similar device. Figure 11 As shown, since one of the conductive plates 26, the conductive rod 25, the other conductive plate 26, and the water pump are connected in series, the series structure will only be conductive when the conductive rod 25 contacts the two conductive plates 26 respectively. At this time, the control terminal can control the water pump to start. Otherwise, the series structure is short-circuited and cannot be started for cleaning.

[0046] The system also includes a mounting ring 27, which is used to fix the main shaft 5 of the high-pressure sludge dewatering equipment. The mounting ring 27 is located below the mounting base 22. Multiple second sliding holes 28 are evenly spaced along the circumference of the mounting ring 27, and a magnet 29 is slidably disposed within each of the second sliding holes 28. When the control slider 24 and the magnet 29 approach each other, they repel each other. In this embodiment, the mounting ring 27 is preferably a regular hexagon, with each side of the mounting ring 27 corresponding to one second sliding hole 28 and one magnet 29.

[0047] The specific control principle is as follows:

[0048] When the sludge dewatering equipment is working, that is, during the sludge dewatering process, the main shaft 5 rotates under the drive of the drive motor 4, driving the variable pitch spiral blades 2 to rotate for sludge dewatering. At this time, the rotating main shaft 5 drives the mounting ring 27 to rotate synchronously. Under the action of centrifugal force, the magnet 29 in the second sliding hole 28 will be thrown to the outward end of the second sliding hole 28. Figure 9As shown, the topmost magnet 29 is located at the top of the second sliding hole 28, at which point the topmost magnet 29 is closest to the control slider 24. Since the control slider 24 and the magnet 29 repel each other when they are close, the repulsive force is greatest at this closest point. Under the magnetic repulsion, the control slider 24 is pushed upwards and slides a certain distance upwards within the first sliding hole 23. At this time, the conductive rod 25 moves upwards and separates from the two conductive plates 26, and the series circuit is in an open circuit state. Therefore, even if the control terminal is accidentally turned on while the sludge dewatering equipment is working, the water pump will not start.

[0049] When the sludge dewatering equipment stops working, the main shaft 5 stops rotating, that is, the mounting ring 27 stops rotating. Figure 7 and Figure 8 As shown, under the influence of gravity, the topmost magnet 29 is located at the bottom of the second sliding hole 28. At this time, the distance between the topmost magnet 29 and the control slider 24 is relatively far, and the repulsive force is insufficient to drive the control slider 24 to move upward. The control slider 24 is located at the lowest point of the first sliding hole 23. At this time, the conductive rod 25 abuts against the two conductive plates 26, and the series circuit is in a closed state. Therefore, when the sludge dewatering equipment stops working, the water pump can be turned on through the control terminal for flushing operations. Therefore, by setting the magnet 29 and the control slider 24 to cooperate with each other, this application can prevent the water pump from being accidentally turned on during the operation of the sludge dewatering equipment, thus improving safety.

[0050] Exemplary, such as Figures 7-8 As shown, in some embodiments, the two conductive sheets 26 are inclined and arranged in a V-shape, and the conductive rod 25 is horizontally disposed on the top of the control slider 24, with both ends of the conductive rod 25 extending out from both sides of the control slider 24. The inclined arrangement of the two conductive sheets 26 in this invention facilitates the rapid separation of the conductive rod 25 from the two conductive sheets 26 when it moves upward, ensuring that the two conductive sheets 26 do not affect the upward movement of the conductive rod 25.

[0051] Exemplary, such as Figures 7-9As shown, the distance between the highest point of the mounting ring 27 and the lowest point of the mounting base 22 is L, where 0 < L < 1 mm, and preferably 0.5 mm. Since the mounting ring 27 rotates continuously during the operation of the sludge dewatering equipment, by setting the distance between the highest point of the mounting ring 27 and the lowest point of the mounting base 22 to be greater than 0, a certain distance is maintained between them. This prevents friction between the mounting ring 27 and the lowest point of the mounting base 22 during rotation, thus preventing wear and tear on the mounting ring 27 or the mounting base 22. Furthermore, setting the distance between the highest point of the mounting ring 27 and the lowest point of the mounting base 22 to less than 1 mm allows for a smaller distance between the control slider 24 and the magnet 29 without friction, thus facilitating the generation of a greater repulsive force to move the control slider 24 upwards.

[0052] In this specification, the terms "one embodiment," "another embodiment," "embodiment," etc., refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same term in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0053] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. An automatic cleaning high-pressure sludge dewatering device, comprising a dewatering chamber, wherein the discharge end of the dewatering chamber is provided with a sludge discharge chamber and a sludge discharge hopper, the bottom of the sludge discharge chamber is open and the sludge discharge hopper is located below the bottom opening of the sludge discharge chamber; characterized in that: The sludge discharge chamber is equipped with a cleaning pipe, which has multiple nozzles for spraying water into the sludge discharge chamber and the sludge discharge bucket. The sludge discharge hopper is equipped with a wastewater collection box, which is rotatably mounted at the bottom of the sludge discharge hopper and has a wastewater collection trough. When the nozzle sprays water, the wastewater collection box rotates to the sludge discharge end of the sludge discharge hopper, and the sludge discharge end of the sludge discharge hopper is inserted into the wastewater collection tank.

2. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 1, characterized in that: The bottom of the sludge discharge hopper is equipped with a rotary adjustment motor, and the wastewater collection box is equipped with a drive arm, which is connected to the drive shaft of the rotary adjustment motor.

3. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 1, characterized in that: The wastewater collection box has two baffles at opposite ends, and a baffle is provided between the wastewater collection box and the two baffles; when the nozzle sprays water, the sludge discharge hopper is located between the two baffles, and the baffle is placed on top of the sludge discharge hopper.

4. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 1, characterized in that: It also includes a wastewater collection box, which has a wastewater collection hole that communicates with the wastewater collection tank, and the wastewater collection hole and the wastewater collection box are connected by a wastewater collection pipe.

5. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 1, characterized in that: It also includes a water tank, which contains a water pump, and the water pump is connected to the cleaning pipe via a water supply pipe.

6. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 5, characterized in that: The dehydration chamber is provided with a mounting base, the mounting base is provided with a first sliding hole, a control slider is slidably disposed in the first sliding hole along the vertical direction, and the control slider is provided with a conductive rod; The mounting base has two conductive plates facing each other, and the conductive rod is located between the two conductive plates. When the control slider is at the lower limit of its stroke, both conductive plates abut against the conductive rod.

7. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 6, characterized in that: It also includes a mounting ring, which is used to fix the main shaft of the high-pressure sludge dewatering equipment. The mounting ring is located below the mounting base. The mounting ring has a plurality of second sliding holes evenly spaced along its circumference. A magnet is slidably installed in any of the second sliding holes. The control slider is a magnetic block. When the control slider and the magnet are close to each other, the control slider and the magnet repel each other.

8. The high-pressure sludge dewatering equipment for automatic cleaning according to claim 7, characterized in that: The two conductive sheets are inclined and arranged in a V-shape, and the conductive rod is horizontally positioned on top of the control slider, with both ends of the conductive rod extending out from both sides of the control slider.

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