A vertical high-pressure sludge deep dewatering device with sludge characteristic matching

Abstract

This invention discloses a vertical high-pressure sludge deep dewatering device for sludge characteristic matching, relating to the field of sludge treatment technology. It includes a fixed U-shaped plate, with first support columns fixedly connected to the bottom of the fixed U-shaped plate near each of its four corners. A horizontal plate is attached to the front side of the fixed U-shaped plate near its bottom. A first cylinder drives a first U-shaped frame, and a second cylinder drives a second U-shaped frame, causing the unwinding and rewinding rollers to move towards or away from each other, thus unfolding and retracting the filter cloth. A third cylinder, via a movable block, drives a limiting roller, which supports or bends the filter cloth. When the filter cloth is bent, the thin sludge layer on the filter cloth is automatically divided into multiple pieces, with some of the thin sludge layer automatically detaching from the filter cloth. The segmentation and separation of the thin sludge layer requires no manual intervention, making the operation simple and reliable. When the movable U-shaped plate moves, a slider slides along a groove on the fixed U-shaped plate, guiding the movement of the movable U-shaped plate.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a vertical high-pressure sludge deep dewatering device that matches sludge characteristics. Background Technology

[0002] Sludge is a byproduct of wastewater treatment, characterized by high water content and large volume. Deep dewatering is essential for reducing sludge moisture content and achieving sludge reduction and resource utilization. Existing sludge dewatering devices mostly employ plate and frame filter presses or belt filter presses, which generally suffer from limitations such as limited operating pressure, high sludge moisture content, and easy clogging and wear of the filter cloth, making it difficult to meet the needs of deep sludge dewatering. Vertical high-pressure sludge deep dewatering devices utilize a thin layer of sludge formed by the winding, conveying, and spreading of filter cloth, and then apply high-pressure compression to this sludge layer using a pressing component. This effectively reduces the sludge moisture content, and related technologies are gradually being applied.

[0003] However, existing vertical high-pressure sludge deep dewatering devices have some problems in use. During the process of winding and conveying the sludge thin layer through the existing filter cloth, there is a lack of reliable mechanisms for segmenting and separating the sludge thin layer. The sludge thin layer that detaches from the filter cloth is easy to scatter in the equipment and workshop, requiring manual cleaning and re-entry into the dewatering process, resulting in insufficient continuity and automation of operations. The pressurization method during press dewatering is relatively simple, making it difficult to adjust the pressurization process according to the differences in sludge quality, and its adaptability to different sludge types needs to be improved. In addition, the actions of each link in the process of filter cloth unfolding, sludge thin layer conveying, segmentation, collection and press dewatering are relatively cumbersome, and the overall structure of the device needs to be optimized. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a vertical high-pressure sludge deep dewatering device for sludge characteristic matching, comprising a fixed U-shaped plate, wherein a first support column is fixedly connected to the bottom of the fixed U-shaped plate near the four corners, a horizontal plate is attached to the front side of the fixed U-shaped plate near the bottom, a second support column is fixedly connected to the bottom of the horizontal plate near the four corners, and a limiting mechanism is provided on the fixed U-shaped plate. The limiting mechanism includes two sets of connecting plates, arranged left and right, with four connecting plates in each set. All four connecting plates on the same side are fixedly connected to the outer edge of the fixed U-shaped plate. Each connecting plate has a first movable groove on its front side, and four second movable grooves are formed on the rear side of the inner cavity of the fixed U-shaped plate. The first and second movable grooves are interconnected. Two limiting rollers are provided on both the left and right sides of the fixed U-shaped plate, located in front of adjacent connecting plates. Movable blocks are rotatably inserted into the rear ends of each limiting roller, and these movable blocks are movably connected within adjacent first movable grooves. Two third cylinders are provided on both the left and right sides of the fixed U-shaped plate, with their rear ends fixedly connected to the front sides of adjacent connecting plates. The end of the third cylinder closest to the fixed U-shaped plate is fixedly connected to one side of the adjacent movable block. A tensioning mechanism is provided on the outer edge of the fixed U-shaped plate.

[0005] Preferably, the tensioning mechanism includes two base plates, which are respectively located at the bottom of the fixed U-shaped plate near the front and rear sides. Each base plate has a first T-slot near the left side of its top and a second T-slot near the right side of its top. The two base plates share a first U-shaped frame near the left side of their tops. The bottom of the first U-shaped frame is fixedly connected to a first T-shaped plate near the front and rear sides. The first T-shaped plate is movably connected within adjacent first T-slots. An unwinding roller is located near the top of the inner cavity of the first U-shaped frame. First through holes are located on both the front and rear sides of the first U-shaped frame near the top. A first motor is located near the top of the front side of the first U-shaped frame. A first rotating rod is fixedly connected to the power output shaft of the first motor. The rear end of the first rotating rod passes through the first through hole on the front side and is fixedly connected to the front end of the unwinding roller. A first crossbar is fixedly connected to the rear end of the unwinding roller. The rear end of the first crossbar passes through the first through hole on the rear side and is fixedly connected to a first fixing plate.

[0006] Preferably, the two base plates are provided with a second U-shaped frame near the right side of their tops. The bottom of the second U-shaped frame is fixedly connected to a second T-shaped plate near both the front and rear sides. The second T-shaped plate is movably connected in an adjacent second T-shaped groove. A take-up roller is provided near the top of the inner cavity of the second U-shaped frame. A second through hole is provided near the top of both the front and rear sides of the second U-shaped frame. A second motor is provided near the top of the front side of the second U-shaped frame. The power output shaft of the second motor is fixedly connected to a second rotating rod. The rear end of the second rotating rod passes through the second through hole on the front side. The rear end of the second rotating rod is fixedly connected to the front end of the take-up roller. A second crossbar is fixedly connected to the rear end of the take-up roller. The rear end of the second crossbar passes through the second through hole on the rear side. A second fixing plate is fixedly connected to the rear end of the second crossbar.

[0007] Preferably, the outer edge of the unwinding roller is wrapped with filter cloth, the side of the filter cloth away from the unwinding roller passes through four limiting rollers, and the side of the filter cloth away from the unwinding roller is wrapped around the outer edge of the take-up roller.

[0008] Preferably, the fixed U-shaped plate has a movable U-shaped plate near the front side of its inner cavity. The top of the fixed U-shaped plate has grooves near both the left and right sides. The movable U-shaped plate has sliders fixedly connected to its top near both the left and right sides. These sliders are movably connected within adjacent grooves. The movable U-shaped plate has several movable plates. Movable rods are fixedly connected to the front side of each movable plate near both the left and right sides. Vertical grooves are formed on the front side of each movable U-shaped plate near both the left and right sides. The front ends of the movable rods pass through adjacent vertical grooves. Limit plates are fixedly connected to the front ends of each movable rod. A spring is fixedly connected between adjacent movable rods. The movable plates are located at the outer edge of the filter cloth.

[0009] Preferably, the fixed U-shaped plate has a first through groove at the top and bottom, and the movable U-shaped plate has a second through groove at the top and bottom. The first through groove and the second through groove are interconnected. The fixed U-shaped plate has a hydraulic cylinder at the top and bottom. The first through groove has a pressing plate in it. One end of the hydraulic cylinder is fixedly connected to the adjacent pressing plate.

[0010] Preferably, the fixed U-shaped plate has two collection frames on both the left and right sides, and an L-shaped rod is fixedly connected to the front of each collection frame. The end of the L-shaped rod away from the collection frame is fixedly connected to the outer edge of the movable U-shaped plate, and a handle is fixedly connected to the center of the front side of the movable U-shaped plate.

[0011] Preferably, a first cylinder is fixedly connected to the right side of the first U-shaped frame near the bottom, and a first fixing plate is fixedly connected to the bottom of the first cylinder.

[0012] Preferably, a second cylinder is fixedly connected to the left side of the second U-shaped frame near the bottom, and a second fixing plate is fixedly connected to the bottom of the second cylinder.

[0013] Preferably, limit rods are fixedly connected to both the front and rear sides of the hydraulic cylinder, and the end of the limit rod away from the hydraulic cylinder is fixedly connected to the outer edge of the fixed U-shaped plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a first cylinder to drive a first U-shaped frame and a second cylinder to drive a second U-shaped frame, causing the unwinding and rewinding rollers to move towards or away from each other, thus unfolding and retracting the filter cloth. A third cylinder, via a movable block, drives a limiting roller, which supports or bends the filter cloth. When the filter cloth is bent, the thin layer of sludge on it is automatically divided into multiple pieces, with some of the sludge automatically detaching from the filter cloth. The segmentation and separation of the sludge layer requires no manual intervention, making the operation simple and reliable. When the movable U-shaped plate moves, a slider slides along a groove on the fixed U-shaped plate, guiding the movement of the movable U-shaped plate. The movable plate moves to the bend of the filter cloth, and a collection frame, via an L-shaped rod, moves to the outer edge of the adjacent limiting roller, automatically collecting the sludge layer that has detached from the filter cloth. This prevents the sludge layer from scattering in the equipment and workshop, and the collected sludge layer can be directly dewatered again, reducing material loss and the burden of manual cleaning. A hydraulic cylinder drives a pressing plate to squeeze a movable plate, which in turn squeezes and dewaters the filter cloth and the thin layer of sludge on it. During the squeezing process, the hydraulic cylinder employs a segmented pressurization method with low, medium, and high pressure, matching the appropriate pressurization path according to the differences in sludge quality. This adapts to the dewatering needs of different sludge types, ensuring uniformity of squeezing and dewatering and reducing the moisture content of the discharged sludge. During the pressing and dewatering process, the movable rod moves with the movable plate, driving the spring to compress or stretch, providing buffering and resetting for the movable plate. A limiting plate limits the movable plate, ensuring a smooth squeezing process and preventing damage to the filter cloth and sludge layer due to excessive force, thus extending the filter cloth's service life and improving the operational stability of the device. Both the first and second motors are servo motors, which can precisely control the rotation of the unwinding and rewinding rollers, thereby accurately controlling the winding, conveying, and unfolding of the filter cloth. In conjunction with the action of the first, second, and third cylinders and the hydraulic cylinder, the automatic cyclic operation of sludge thin-layer spreading, conveying, segmenting, collecting, pressing, dewatering, and output is realized. The automation level is high and the operation is reliable. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is a front view of the filter cloth component of the present invention; Figure 4 This is a diagram showing the unfolded state of the filter cloth of the component of the present invention; Figure 5 This is a schematic diagram of the movable U-shaped plate structure of the component of the present invention; Figure 6 This is a bottom view of the movable U-shaped plate structure of the component of the present invention; Figure 7 This is a schematic diagram of the movable plate structure of the component of the present invention; Figure 8 This is a schematic diagram of the U-shaped plate structure for fixing the component of the present invention; Figure 9 This is a schematic diagram of the first U-shaped frame structure of the component of the present invention; Figure 10 This is a left view of the unwinding roller of the present invention; Figure 11 This is a schematic diagram of the second U-shaped frame structure of the component of the present invention; Figure 12 This is a left view of the winding roller component of the present invention; Figure 13 This is a schematic diagram of the limiting roller structure of the component of the present invention.

[0016] Numbered in the diagram: 1. Fixed U-shaped plate; 2. Horizontal plate; 3. First support column; 4. Second support column; 5. Movable U-shaped plate; 6. Base plate; 7. First U-shaped frame; 8. Filter cloth; 9. Connecting plate; 10. Second U-shaped frame; 11. Slider; 12. Collection frame; 13. L-shaped rod; 14. Movable plate; 15. Handle; 16. Movable rod; 17. Limiting plate; 18. Spring; 19. Hydraulic cylinder; 20. Pressing plate; 21. Limiting rod; 22. 23. Unwinding roller; 24. First T-shaped plate; 25. First fixed plate; 26. First rotating rod; 27. First crossbar; 28. First fixed plate; 29. ​​Second motor; 30. Rewinding roller; 31. Second cylinder; 32. Second fixed plate; 33. Second T-shaped plate; 34. Second crossbar; 35. Second fixed plate; 36. Second rotating rod; 37. Third cylinder; 38. Movable block; 39. Limiting roller; 40. First motor. Detailed Implementation

[0017] Example 1: Please see Figure 1-13 The present invention provides a technical solution: a vertical high-pressure sludge deep dewatering device for sludge characteristic matching, including a fixed U-shaped plate 1, a first support column 3 fixedly connected to the bottom of the fixed U-shaped plate 1 near the four corners, a horizontal plate 2 attached to the front side of the fixed U-shaped plate 1 near the bottom, a second support column 4 fixedly connected to the bottom of the horizontal plate 2 near the four corners, and a limiting mechanism provided on the fixed U-shaped plate 1. The limiting mechanism includes two sets of connecting plates 9, which are arranged left and right. Each set of connecting plates 9 consists of four plates. All four connecting plates 9 on the same side are fixedly connected to the outer edge of the fixed U-shaped plate 1. The front side of each connecting plate 9 is provided with a first movable groove. The rear side of the inner cavity of the fixed U-shaped plate 1 is provided with four second movable grooves. The first and second movable grooves are interconnected. Two limiting rollers 39 are provided on both the left and right sides of the fixed U-shaped plate 1. The limiting rollers 39 are located on the front side of the adjacent connecting plates 9. The rear end of each limiting roller 39 is rotatably inserted with a movable block 38. The movable block 38 is movably connected in the adjacent first movable groove. Two third cylinders 37 are provided on both the left and right sides of the fixed U-shaped plate 1. The rear side of the third cylinder 37 is fixedly connected to the front side of the adjacent connecting plate 9. The end of the third cylinder 37 near the fixed U-shaped plate 1 is fixedly connected to the side of the adjacent movable block 38. A tensioning mechanism is provided on the outer edge of the fixed U-shaped plate 1. The tensioning mechanism includes two base plates 6, which are located near the front and rear sides of the bottom of the fixed U-shaped plate 1. Each base plate 6 has a first T-slot near the left side of its top and a second T-slot near the right side of its top. A first U-shaped frame 7 is shared near the left side of the top of both base plates 6. A first T-shaped plate 23 is fixedly connected to the bottom of the first U-shaped frame 7 near the front and rear sides, and the first T-shaped plate 23 is movably connected within adjacent first T-slots. A unwinding roller 22 is located near the top of the inner cavity of the first U-shaped frame 7. First through holes are located near the top of the front and rear sides of the first U-shaped frame 7. A first motor 40 is located near the top of the front side of the first U-shaped frame 7. A first rotating rod 26 is fixedly connected to the power output shaft of the first motor 40. The rear end of the first rotating rod 26 passes through the front first through hole and is fixedly connected to the front end of the unwinding roller 22. A first crossbar 27 is fixedly connected to the rear end of the unwinding roller 22, and the rear end of the first crossbar 27 passes through the rear first through hole. A first fixed... The plate 28 has a second U-shaped frame 10 located near the right side of the top of both base plates 6. A second T-shaped plate 33 is fixedly connected to the bottom of the second U-shaped frame 10 near both the front and rear sides. The second T-shaped plate 33 is movably connected within an adjacent second T-shaped groove. A winding roller 30 is located near the top of the inner cavity of the second U-shaped frame 10. Second through holes are opened on both the front and rear sides of the second U-shaped frame 10 near the top. A second motor 29 is located near the top of the front side of the second U-shaped frame 10. The power output shaft of the second motor 29 is fixedly connected to a second… The rotating rod 36 has its rear end passing through the second through hole on the front side. The rear end of the second rotating rod 36 is fixedly connected to the front end of the take-up roller 30. The rear end of the take-up roller 30 is fixedly connected to the second crossbar 34. The rear end of the second crossbar 34 passes through the second through hole on the rear side. The rear end of the second crossbar 34 is fixedly connected to the second fixed plate 35. The outer edge of the unwinding roller 22 is wrapped with filter cloth 8. The side of the filter cloth 8 away from the unwinding roller 22 passes through four limiting rollers 39. The side of the filter cloth 8 away from the unwinding roller 22 is wrapped around the outer edge of the take-up roller 30. A movable U-shaped plate 5 is provided near the front side of the inner cavity of the fixed U-shaped plate 1. Slide grooves are provided on the top of the inner cavity of the fixed U-shaped plate 1 near the left and right sides. Slider blocks 11 are fixedly connected to the top of the movable U-shaped plate 5 near the left and right sides, and the sliders 11 are movably connected in adjacent slide grooves. Several movable plates 14 are provided in the inner cavity of the movable U-shaped plate 5. Movable rods 16 are fixedly connected to the front side of the movable plates 14 near the left and right sides. Vertical grooves are provided on the front side of the movable U-shaped plate 5 near the left and right sides. The front ends of the movable rods 16 pass through adjacent vertical grooves, and limit plates 17 are fixedly connected to the front ends of the movable rods 16. A spring 18 is fixedly connected between adjacent movable rods 16. The movable plates 14 are located at the outer edge of the filter cloth 8. A first through groove is provided at the top and bottom of the fixed U-shaped plate 1, and a second through groove is provided at the top and bottom of the movable U-shaped plate 5. The first and second through grooves are interconnected. Hydraulic cylinders 19 are provided at the top and bottom of the mold plate 1. Pressing plates 20 are provided in the first through groove. One end of the hydraulic cylinder 19 is fixedly connected to the adjacent pressing plate 20. Two collection frames 12 are provided on the left and right sides of the fixed U-shaped plate 1. An L-shaped rod 13 is fixedly connected to the front of the collection frame 12. The end of the L-shaped rod 13 away from the collection frame 12 is fixedly connected to the outer edge of the movable U-shaped plate 5. A handle 15 is fixedly connected to the center of the front side of the movable U-shaped plate 5. A first cylinder 24 is fixedly connected to the right side of the first U-shaped frame 7 near the bottom. A first fixing plate 25 is fixedly connected to the bottom of the first cylinder 24. A second cylinder 31 is fixedly connected to the left side of the second U-shaped frame 10 near the bottom. A second fixing plate 32 is fixedly connected to the bottom of the second cylinder 31. Limiting rods 21 are fixedly connected to both the front and rear sides of the hydraulic cylinder 19. The end of the limiting rod 21 away from the hydraulic cylinder 19 is fixedly connected to the outer edge of the fixed U-shaped plate 1.

[0018] Working principle: After the sludge is spread out, it forms a thin layer of uniform thickness. At this point, the first cylinder 24 and the second cylinder 31 are activated. The first cylinder 24 moves the first U-shaped frame 7 to the left, and the second cylinder 31 moves the second U-shaped frame 10 to the right. The first U-shaped frame 7 moves the unwinding roller 22 to the left, and the second U-shaped frame 10 moves the winding roller 30 to the right, thus unfolding the filter cloth 8. Simultaneously, the third cylinder 37 moves the limiting rollers 39 via the movable block 38. The two middle limiting rollers 39 move away from the filter cloth 8, while the top and bottom limiting rollers 39 adhere to the surface of the filter cloth 8, thus supporting it. When the uniformly thick sludge layer falls onto the filter cloth 8, the first motor 40 drives the unwinding roller 22 via the first rotating rod 26. The unwinding roller 22 rotates, driving the first crossbar 27 to rotate. The first crossbar 27 drives the first fixed plate 28 to rotate. The second motor 29 drives the take-up roller 30 to rotate via the second rotating rod 36. The take-up roller 30 drives the second crossbar 34 and the second fixed plate 35 to rotate. With the cooperation of the unwinding roller 22 and the take-up roller 30, the filter cloth 8 is wound up. During the winding process, the filter cloth 8 conveys the sludge thin layer. After the sludge thin layer passes through the fixed U-shaped plate 1, the first motor 40 and the second motor 29 are turned off, and the first cylinder 24, the second cylinder 31, and the third cylinder 37 are started. The third cylinder 37 drives the limit roller 39 to move via the movable block 38. The movable block 38 has a first movable groove on the connecting plate 9 and the fixed U-shaped plate 1. The filter cloth 8 moves within the second movable groove, and the limiting roller 39 bends the filter cloth 8, causing it to be in a bent state. The first cylinder 24 drives the unwinding roller 22 to move to the right via the first U-shaped frame 7, and the second cylinder 31 drives the take-up roller 30 to move to the left via the second U-shaped frame 10. The sludge layer on the filter cloth 8 will be divided into three pieces, and part of the sludge layer will detach from the filter cloth 8. While the limiting roller 39 is bending the filter cloth 8, the movable U-shaped plate 5 moves backward. The movable U-shaped plate 5 drives the slider 11 to move, and the slider 11 enters the groove on the fixed U-shaped plate 1. The movable U-shaped plate 5 drives the movable plate 14 to move backward, and the movable plate 14 will be located between the bent filter cloths 8. The movable U-shaped plate 5 drives the collection frame 12 to move backward via the L-shaped rod 13. The collection frame 12 moves to the outer edge of the adjacent limiting roller 39, collecting the thin layer of sludge that has detached from the filter cloth 8 for subsequent dewatering. At this point, two hydraulic cylinders 19 are activated, moving the pressing plate 20. The upper and lower pressing plates 20 squeeze the movable plate 14, which in turn squeezes the filter cloth 8 and the thin layer of sludge on it, squeezing out the water. The hydraulic cylinders 19 employ segmented pressurization during the squeezing process, using low-medium-high pressure stages to match the pressure increase path for different sludge types. The movable plate 14 then moves the movable rod 16, which in turn compresses or stretches the spring 18. The limiting plate 17 limits the movable plate 14. Once the water in the thin layer of sludge has been squeezed out...The movable U-shaped plate 5 moves forward, and the third cylinder 37 drives the limiting roller 39 away from the filter cloth 8. The filter cloth 8 returns to its unfolded state. With the cooperation of the first motor 40 and the second motor 29, the filter cloth 8 is rewound, and the dewatered sludge layer is conveyed and removed from the filter cloth 8. The movement of the movable U-shaped plate 5 is controlled by external machinery. When the movable U-shaped plate 5 is not working, it is placed on top of the horizontal plate 2. Both the first motor 40 and the second motor 29 are servo motors. After one round of pressing and dewatering, the first motor 40 rewound the filter cloth 8 through the unwinding roller 22, thus performing subsequent pressing and dewatering operations.

[0019] Example 2: like Figure 1 and Figure 2 As shown, the vertical high-pressure sludge deep dewatering device for sludge characteristic matching of the present invention includes a fixed U-shaped plate 1. The fixed U-shaped plate 1 is a U-shaped frame structure with the opening facing forward. First support columns 3 are fixedly connected to the bottom of the fixed U-shaped plate 1 near the four corners. The four first support columns 3 provide stable support for the fixed U-shaped plate 1. A horizontal plate 2 is attached to the front side of the fixed U-shaped plate 1 near the bottom. Second support columns 4 are fixedly connected to the bottom of the horizontal plate 2 near the four corners. The horizontal plate 2 is attached to the front bottom of the fixed U-shaped plate 1. The second support columns 4 provide support for the horizontal plate 2. The horizontal plate 2 is used to receive materials falling from the front of the device or to provide a foothold for the operator. The fixed U-shaped plate 1 is equipped with a limiting mechanism, which includes two sets of connecting plates 9, arranged left and right. Each set of connecting plates 9 consists of four plates, and the four connecting plates 9 on the same side are all fixedly connected to the outer edge of the fixed U-shaped plate 1. A first movable groove is formed on the front side of each connecting plate 9, and four second movable grooves are formed on the rear side of the inner cavity of the fixed U-shaped plate 1. The first and second movable grooves are interconnected. Two limiting rollers 39 are provided on both the left and right sides of the fixed U-shaped plate 1. The limiting rollers 39 are located on the front side of the adjacent connecting plates 9, and movable blocks 38 are rotatably inserted into the rear end of each limiting roller 39. The movable blocks 38 are movably connected in the adjacent first movable groove. Two third cylinders 37 are provided on both the left and right sides of the fixed U-shaped plate 1. The rear side of the third cylinder 37 is fixedly connected to the front side of the adjacent connecting plate 9, and the end of the third cylinder 37 closest to the fixed U-shaped plate 1 is fixedly connected to the side of the adjacent movable block 38. When the third cylinder 37 extends or retracts, it drives the movable block 38 to move along the first movable groove. The movable block 38 drives the limiting roller 39 to move back and forth, so that the limiting roller 39 supports the filter cloth 8 or causes the filter cloth 8 to bend. A tensioning mechanism is provided on the outer edge of the fixed U-shaped plate 1. The tensioning mechanism includes two base plates 6, which are located at the bottom of the fixed U-shaped plate 1 near the front and rear sides respectively. A first T-slot is provided on the top of each base plate 6 near the left side, and a second T-slot is provided on the top of each base plate 6 near the right side. like Figure 9 and Figure 10 As shown, the top of the two base plates 6 is provided with a first U-shaped frame 7 near the left side. The bottom of the first U-shaped frame 7 is fixedly connected with a first T-shaped plate 23 near the front and rear sides. The first T-shaped plate 23 is movably connected in the adjacent first T-shaped groove. The first T-shaped plate 23 and the first T-shaped groove cooperate to guide the left and right movement of the first U-shaped frame 7. The first U-shaped frame 7 has an unwinding roller 22 near the top of its inner cavity. The first U-shaped frame 7 has a first through hole near the top on both the front and rear sides. The first motor 40 is located near the top on the front side of the first U-shaped frame 7. The power output shaft of the first motor 40 is fixedly connected to a first rotating rod 26. The rear end of the first rotating rod 26 passes through the first through hole on the front side and is fixedly connected to the front end of the unwinding roller 22. The rear end of the unwinding roller 22 is fixedly connected to a first crossbar 27. The rear end of the first crossbar 27 passes through the first through hole on the rear side and is fixedly connected to a first fixing plate 28. The first fixing plate 28 provides axial limiting for the first crossbar 27 to prevent the unwinding roller 22 from coming out of the first U-shaped frame 7. The first motor 40 drives the first rotating rod 26 to rotate, and the first rotating rod 26 drives the unwinding roller 22 to rotate, thereby realizing the unwinding of the filter cloth 8. like Figure 11 and Figure 12 As shown, the top of the two base plates 6 is provided with a second U-shaped frame 10 near the right side. The bottom of the second U-shaped frame 10 is fixedly connected with a second T-shaped plate 33 near the front and rear sides. The second T-shaped plate 33 is movably connected in the adjacent second T-shaped groove. The second T-shaped plate 33 and the second T-shaped groove cooperate to guide the left and right movement of the second U-shaped frame 10. A take-up roller 30 is located near the top of the inner cavity of the second U-shaped frame 10. Second through holes are provided on both the front and rear sides of the second U-shaped frame 10 near the top. A second motor 29 is located near the top of the front side of the second U-shaped frame 10. A second rotating rod 36 is fixedly connected to the power output shaft of the second motor 29. The rear end of the second rotating rod 36 passes through the front second through hole and is fixedly connected to the front end of the take-up roller 30. A second crossbar 34 is fixedly connected to the rear end of the take-up roller 30. The rear end of the second crossbar 34 passes through the rear second through hole and is fixedly connected to a second fixing plate 35. The second fixing plate 35 axially limits the second crossbar 34, preventing the take-up roller 30 from detaching from the second U-shaped frame 10. The second motor 29 drives the second rotating rod 36 to rotate, which in turn drives the take-up roller 30 to rotate, thus achieving the winding of the filter cloth 8. A filter cloth 8 is wound around the outer edge of the unwinding roller 22. The side of the filter cloth 8 furthest from the unwinding roller 22 passes through four limiting rollers 39. The side of the filter cloth 8 furthest from the unwinding roller 22 is wound around the outer edge of the take-up roller 30. The four limiting rollers 39 are located on the left and right sides of the fixed U-shaped plate 1, respectively. After being drawn from the unwinding roller 22, the filter cloth 8 passes sequentially around the two left and two right limiting rollers 39, and finally wraps around the take-up roller 30. The limiting rollers 39 provide tension and guidance for the filter cloth 8. Both the first motor 40 and the second motor 29 are servo motors, capable of precisely controlling the rotation of the unwinding roller 22 and the take-up roller 30, thereby precisely controlling the winding, conveying, and unwinding of the filter cloth 8.

[0020] A first cylinder 24 is fixedly connected to the right side of the first U-shaped frame 7 near the bottom. A first fixing plate 25 is fixedly connected to the bottom of the first cylinder 24. The first fixing plate 25 is fixedly installed. When the first cylinder 24 extends or retracts, it drives the first U-shaped frame 7 to move left and right along the first T-slot. A second cylinder 31 is fixedly connected to the left side of the second U-shaped frame 10 near the bottom. A second fixing plate 32 is fixedly connected to the bottom of the second cylinder 31. The second fixing plate 32 is fixedly installed. When the second cylinder 31 extends or retracts, it drives the second U-shaped frame 10 to move left and right along the second T-slot. When the first cylinder 24 and the second cylinder 31 operate synchronously, the first U-shaped frame 7 and the second U-shaped frame 10 move towards or away from each other, thereby driving the unwinding roller 22 and the winding roller 30 to move towards or away from each other, realizing the unfolding and retraction of the filter cloth 8. like Figure 5 , Figure 6 and Figure 7 As shown, a movable U-shaped plate 5 is provided near the front side of the inner cavity of the fixed U-shaped plate 1. Slide grooves are provided on the top of the inner cavity of the fixed U-shaped plate 1 near the left and right sides. Slide blocks 11 are fixedly connected to the top of the movable U-shaped plate 5 near the left and right sides. The slide blocks 11 are movably connected in the adjacent slide grooves. The slide blocks 11 cooperate with the slide grooves to guide the forward and backward movement of the movable U-shaped plate 5. A handle 15 is fixedly connected to the center of the front side of the movable U-shaped plate 5. The operator can pull the movable U-shaped plate 5 along the slide groove to move it forward and backward through the slide groove using the handle 15. The inner cavity of the movable U-shaped plate 5 is provided with several movable plates 14. Movable rods 16 are fixedly connected to the front side of each movable plate 14 near the left and right sides. Vertical grooves are opened on the front side of the movable U-shaped plate 5 near the left and right sides. The front end of each movable rod 16 passes through the adjacent vertical groove. Limiting plates 17 are fixedly connected to the front end of each movable rod 16. A spring 18 is fixedly connected between two adjacent movable rods 16. The movable plates 14 are located at the outer edge of the filter cloth 8. The movable plates 14 can move up and down along the vertical groove with the movable rods 16. The springs 18 connect and reset adjacent movable rods 16. The limiting plates 17 axially limit the movable rods 16 to prevent them from coming out of the vertical groove. The fixed U-shaped plate 1 has a first through groove at both its top and bottom, and the movable U-shaped plate 5 has a second through groove at both its top and bottom. The first and second through grooves are interconnected. A hydraulic cylinder 19 is installed at both the top and bottom of the fixed U-shaped plate 1, and a pressing plate 20 is installed in each of the first through grooves. One end of the hydraulic cylinder 19 is fixedly connected to an adjacent pressing plate 20. Limiting rods 21 are fixedly connected to both the front and rear sides of the hydraulic cylinder 19. The end of the limiting rod 21 away from the hydraulic cylinder 19 is fixedly connected to the outer edge of the fixed U-shaped plate 1, and the limiting rods 21 provide fixation and support for the hydraulic cylinder 19. When the hydraulic cylinder 19 extends or retracts, it drives the pressing plate 20 through the first and second through grooves, applying pressure to the movable plate 14. The movable plate 14 then squeezes and dewaters the filter cloth 8 and the thin layer of sludge on the filter cloth 8. During the squeezing process, the hydraulic cylinder 19 uses a segmented pressurization method with low, medium, and high pressure, which can match the corresponding pressurization path according to the difference in sludge quality, adapting to the dewatering needs of different sludge types. Two collection frames 12 are provided on both the left and right sides of the fixed U-shaped plate 1. An L-shaped rod 13 is fixedly connected to the front of each collection frame 12. The end of the L-shaped rod 13 away from the collection frame 12 is fixedly connected to the outer edge of the movable U-shaped plate 5. When the movable U-shaped plate 5 moves back and forth, the collection frames 12 move with the L-shaped rod 13. When the filter cloth 8 is bent, the thin layer of sludge that has detached from the filter cloth 8 falls into the collection frame 12 and is collected, thus preventing the thin layer of sludge from scattering on the equipment and in the workshop.

[0021] like Figure 3 and Figure 4 As shown, the filter cloth 8 is in a straight state when unfolded, and the thin layer of sludge is evenly spread on the filter cloth 8; when the limiting roller 39 moves forward to bend the filter cloth 8, the filter cloth 8 is in a bent state, and the thin layer of sludge on the filter cloth 8 is automatically divided into multiple pieces, and some of the thin layer of sludge automatically detaches from the filter cloth 8. Work process: In the initial state, the first cylinder 24 and the second cylinder 31 are in the retracted state, the first U-shaped frame 7 and the second U-shaped frame 10 move in opposite directions, the distance between the unwinding roller 22 and the winding roller 30 is large, and the filter cloth 8 is in the retracted state; the third cylinder 37 is in the retracted state, the limiting roller 39 is located away from the fixed U-shaped plate 1, and the filter cloth 8 is in a flat and unfolded state. During operation, the sludge to be dewatered is first spread on the filter cloth 8 to form a thin layer of sludge. The first motor 40 and the second motor 29 start synchronously. The first motor 40 drives the unwinding roller 22 to unwind, and the second motor 29 drives the winding roller 30 to wind. The filter cloth 8 carries the thin layer of sludge towards the winding roller 30. When the thin layer of sludge is conveyed to the pressing area inside the fixed U-shaped plate 1, the first motor 40 and the second motor 29 stop rotating. Subsequently, hydraulic cylinder 19 is activated, driving pressing plate 20 to move towards movable plate 14. Pressing plate 20 squeezes movable plate 14, which in turn squeezes and dewaters filter cloth 8 and the thin layer of sludge on it. During the squeezing process, hydraulic cylinder 19 uses a segmented pressurization method with low, medium, and high pressure, matching the appropriate pressurization path according to the differences in sludge quality. During the squeezing and dewatering process, movable rod 16 moves along the vertical groove with movable plate 14, driving spring 18 to compress or stretch, which buffers and resets movable plate 14; limiting plate 17 limits movable plate 14, making the squeezing process smooth and preventing filter cloth 8 and thin layer of sludge from being damaged due to excessive force. After the dewatering process is completed, the hydraulic cylinder 19 drives the pressing plate 20 to retract, and the spring 18 drives the movable plate 14 to reset. Then, the third cylinder 37 extends, and the third cylinder 37 drives the limiting roller 39 to move towards the fixed U-shaped plate 1 via the movable block 38. The limiting roller 39 pushes the filter cloth 8, causing the filter cloth 8 to bend into a curved state. The thin layer of sludge on the filter cloth 8 is automatically divided into multiple pieces, and some of the thin layer of sludge automatically detaches from the filter cloth 8. At the same time, the operator pulls the movable U-shaped plate 5 forward along the chute through the handle 15. The movable plate 14 moves to the space between the bent filter cloth 8, and the collection frame 12 moves to the outer edge of the adjacent limiting roller 39 via the L-shaped rod 13. The thin layer of sludge that has detached from the filter cloth 8 falls into the collection frame 12 and is collected. After collection is complete, the third cylinder 37 retracts, the limit roller 39 retracts, and the filter cloth 8 returns to a straight state; the movable U-shaped plate 5 is pushed back to its original position. The first cylinder 24 and the second cylinder 31 extend, the first U-shaped frame 7 and the second U-shaped frame 10 move towards each other, the distance between the unwinding roller 22 and the take-up roller 30 decreases, and the filter cloth 8 is gathered. Then the first motor 40 and the second motor 29 start again, and the filter cloth 8 continues to be conveyed, entering the next work cycle; With the coordinated action of the first cylinder 24, the second cylinder 31, the third cylinder 37, and the hydraulic cylinder 19, this device achieves automatic cyclic operation of sludge thin-layer spreading, conveying, segmenting, collecting, pressing, dewatering, and output. It has a high degree of automation and reliable operation.

Claims

1. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching, comprising a fixed U-shaped plate (1), characterized in that: The fixed U-shaped plate (1) is fixedly connected to the four corners of the bottom with a first support column (3), the fixed U-shaped plate (1) is attached to the bottom of the front side with a horizontal plate (2), the bottom of the horizontal plate (2) is fixedly connected to the four corners of the bottom with a second support column (4), and the fixed U-shaped plate (1) is provided with a limiting mechanism. The limiting mechanism includes two sets of connecting plates (9), which are arranged left and right. Each set of connecting plates (9) consists of four plates. The four connecting plates (9) on the same side are all fixedly connected to the outer edge of the fixed U-shaped plate (1). The front side of each connecting plate (9) is provided with a first movable groove, and the rear side of the inner cavity of the fixed U-shaped plate (1) is provided with four second movable grooves. The first and second movable grooves are interconnected. The fixed U-shaped plate (1) is provided with two limiting rollers (39) on both the left and right sides. 39) Located on the front side of the adjacent connecting plate (9), the rear end of the limiting roller (39) is rotatably inserted with a movable block (38). The movable block (38) is movably connected in the adjacent first movable groove. The left and right sides of the fixed U-shaped plate (1) are provided with two third cylinders (37). The rear side of the third cylinder (37) is fixedly connected to the front side of the adjacent connecting plate (9). The end of the third cylinder (37) near the fixed U-shaped plate (1) is fixedly connected to the side of the adjacent movable block (38). The outer edge of the fixed U-shaped plate (1) is provided with a tensioning mechanism.

2. The vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 1, characterized in that: The tensioning mechanism includes two base plates (6), which are located near the front and rear sides of the bottom of the fixed U-shaped plate (1). Each base plate (6) has a first T-slot near the left side of its top and a second T-slot near the right side of its top. Both base plates (6) share a first U-shaped frame (7) near the left side of their tops. A first T-shaped plate (23) is fixedly connected to the bottom of the first U-shaped frame (7) near the front and rear sides. The first T-shaped plate (23) is movably connected within adjacent first T-slots. A unwinding roller (22) is located near the top of the inner cavity of the first U-shaped frame (7). The first U-shaped frame (7) has a first through hole on both the front and rear sides near the top. The first motor (40) is located on the front side near the top of the first U-shaped frame (7). The power output shaft of the first motor (40) is fixedly connected to a first rotating rod (26). The rear end of the first rotating rod (26) passes through the first through hole on the front side. The rear end of the first rotating rod (26) is fixedly connected to the front end of the unwinding roller (22). The rear end of the unwinding roller (22) is fixedly connected to a first crossbar (27). The rear end of the first crossbar (27) passes through the first through hole on the rear side. The rear end of the first crossbar (27) is fixedly connected to a first fixed plate (28).

3. The vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 2, characterized in that: The two base plates (6) are provided with a second U-shaped frame (10) near the right side of the top. The bottom of the second U-shaped frame (10) is fixedly connected to the front and rear sides of the bottom. The second T-shaped plate (33) is movably connected in the adjacent second T-shaped groove. The inner cavity of the second U-shaped frame (10) is provided with a take-up roller (30) near the top. The front and rear sides of the second U-shaped frame (10) are provided with a second through hole near the top. The front side of the second U-shaped frame (10) is provided with a second motor (29) near the top. The power output shaft of the second motor (29) is fixedly connected to a second rotating rod (36). The rear end of the second rotating rod (36) passes through the front second through hole. The rear end of the second rotating rod (36) is fixedly connected to the front end of the take-up roller (30). The rear end of the take-up roller (30) is fixedly connected to a second crossbar (34). The rear end of the second crossbar (34) passes through the rear second through hole. The rear end of the second crossbar (34) is fixedly connected to a second fixed plate (35).

4. The vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 3, characterized in that: The outer edge of the unwinding roller (22) is wrapped with filter cloth (8), and the side of the filter cloth (8) away from the unwinding roller (22) passes through four limiting rollers (39). The side of the filter cloth (8) away from the unwinding roller (22) is wrapped around the outer edge of the winding roller (30).

5. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 1, characterized in that: The fixed U-shaped plate (1) has a movable U-shaped plate (5) near the front side of its inner cavity. The fixed U-shaped plate (1) has a sliding groove at the top of its inner cavity near the left and right sides. The movable U-shaped plate (5) has a slider (11) fixedly connected at the top of its inner cavity near the left and right sides. The slider (11) is movably connected in the adjacent sliding groove. The movable U-shaped plate (5) has several movable plates (14) in its inner cavity. The movable plates (14) have a movable rod (16) fixedly connected at the front side near the left and right sides. The movable U-shaped plate (5) has a vertical groove at the front side near the left and right sides. The front end of the movable rod (16) passes through the adjacent vertical groove. The front end of the movable rod (16) is fixedly connected to a limit plate (17). A spring (18) is fixedly connected between two adjacent movable rods (16). The movable plate (14) is located at the outer edge of the filter cloth (8).

6. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 5, characterized in that: The fixed U-shaped plate (1) has a first through groove at the top and bottom, and the movable U-shaped plate (5) has a second through groove at the top and bottom. The first through groove and the second through groove are interconnected. The fixed U-shaped plate (1) has a hydraulic cylinder (19) at the top and bottom. The first through groove has a pressing plate (20) in it. One end of the hydraulic cylinder (19) is fixedly connected to the adjacent pressing plate (20).

7. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 5, characterized in that: The fixed U-shaped plate (1) has two collection frames (12) on both the left and right sides. Each collection frame (12) has an L-shaped rod (13) fixedly connected to its front side. The end of the L-shaped rod (13) away from the collection frame (12) is fixedly connected to the outer edge of the movable U-shaped plate (5). A handle (15) is fixedly connected to the center of the front side of the movable U-shaped plate (5).

8. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 2, characterized in that: A first cylinder (24) is fixedly connected to the right side of the first U-shaped frame (7) near the bottom, and a first fixing plate (25) is fixedly connected to the bottom of the first cylinder (24).

9. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 3, characterized in that: A second cylinder (31) is fixedly connected to the left side of the second U-shaped frame (10) near the bottom, and a second fixing plate (32) is fixedly connected to the bottom of the second cylinder (31).

10. A vertical high-pressure sludge deep dewatering device for sludge characteristic matching according to claim 6, characterized in that: Limiting rods (21) are fixedly connected to both the front and rear sides of the hydraulic cylinder (19). The end of the limiting rod (21) away from the hydraulic cylinder (19) is fixedly connected to the outer edge of the fixed U-shaped plate (1).

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