Solid waste pollution dredging device

Abstract

This invention discloses a solid waste pollution dredging device, belonging to the field of solid waste pollution control technology. It includes a tracked vehicle and a slurry pump mounted on top of the tracked vehicle. A mounting frame is fixedly installed at the front end of the tracked vehicle, and a sludge loosening component is installed on the top of the mounting frame. This invention, by setting a conical large-pore filter screen at the inlet end of the front-end pipe, and cooperating with an interception and discharge mechanism between the front and rear pipes, can perform secondary filtration of small-diameter solid waste passing through the large-pore filter screen during sludge suction operations. Simultaneously, the conical small-pore filter screen in the interception and discharge mechanism adopts a floating structure design. When too much small-diameter solid waste accumulates and clogs the conical small-pore filter screen, the suction force of the slurry pump can drive the conical small-pore filter screen away from the front-end pipe, allowing the intercepted small-diameter solid waste to be automatically discharged. After the solid waste is discharged, the conical small-pore filter screen can automatically reset by the elastic force of a compression spring.

Description

Technical Field

[0001] This invention relates to a dredging device, and more particularly to a dredging device for solid waste pollution, belonging to the field of solid waste pollution control technology. Background Technology

[0002] Currently, the mainstream approach for dredging operations in solid waste pollution scenarios is to use dredging devices with slurry pumps as the core suction power. These devices pre-filter the pumped slurry through a pre-filter screen and simultaneously use a mud loosening mechanism to pre-treat the hardened silt layer, ensuring the continuity and stability of the dredging operation.

[0003] In the sludge pre-filtration stage, to avoid front-end clogging, the industry generally uses large-pore filter screens, which can effectively prevent rapid clogging of the mesh. However, this can only isolate large-particle block solid waste. Small-particle solid waste cannot be intercepted or discharged during the transportation process and will enter the sludge pump with the sludge, continuously causing wear on the pump body and reducing the service life of the sludge pump. At the same time, during dredging operations, crushing rollers or high-pressure spray nozzles are often used to loosen the sludge. However, relying on a single loosening method is not effective. In addition, the high-pressure nozzles are installed at a fixed angle, and the spray angle and flushing range of the nozzles are constant. They can only impact the sludge layer at fixed points, resulting in poor loosening effect of the sludge layer.

[0004] To address this issue, a solid waste pollution dredging device was designed. Summary of the Invention

[0005] The main objective of this invention is to provide a solid waste pollution dredging device to solve the technical problems in the prior art, such as the difficulty in balancing filtration accuracy and suction efficiency, the inability to intercept and discharge small-particle solid waste online, the easy wear of slurry pumps, and the poor loosening effect of silt layers.

[0006] The objective of this invention can be achieved by adopting the following technical solution: A solid waste pollution dredging device includes a tracked vehicle and a slurry pump installed on top of the tracked vehicle; The front end of the tracked vehicle is fixedly equipped with a mounting bracket, and the top of the mounting bracket is equipped with a silt loosening component; The silt loosening assembly includes a drive motor, a crushing roller, and a high-pressure nozzle. The drive motor is fixedly mounted on the side of the mounting frame, and a shaft is coaxially fixedly mounted on the output shaft of the drive motor. The end of the shaft away from the drive motor is fixedly connected to the crushing roller. The high-pressure nozzle is located at the top of the crushing roller, and a swing mechanism is provided at the bottom of the high-pressure nozzle. The swing mechanism is connected to the shaft for transmission, and is used to synchronously drive the high-pressure nozzle to swing back and forth during the rotation of the crushing roller. The bottom of the mounting frame is equipped with a front-end pipe, and a tapered large-pore filter screen is fixed at the front inlet end of the front-end pipe. The input end of the slurry pump is equipped with a rear-end pipe, and an interception and discharge mechanism is set between the rear outlet end of the front-end pipe and the end of the rear-end pipe. The interception and discharge mechanism is used to perform secondary filtration on small-particle solid waste in the pumped slurry and to automatically discharge the intercepted solid waste online.

[0007] Preferably, the tracked vehicle has a storage tank on its top, which is located below the interception and discharge mechanism, for storing small-diameter solid waste that is intercepted and discharged.

[0008] Preferably, the swing mechanism includes a transmission box, a driving bevel gear, a driven bevel gear, a lever, a rectangular frame plate, and a rotating rod; The transmission box is fixed on the top of the mounting bracket. The shaft passes through the transmission box and rotates with it. The driving bevel gear is coaxially fixed on the outside of the shaft located inside the transmission box. The driven bevel gear is rotatably assembled inside the transmission box, and the driven bevel gear meshes with the driving bevel gear. The lever is eccentrically fixed to the end face of the driven bevel gear. A rectangular frame plate is sleeved on the outside of the lever and slides with it. The rotating rod is rotatably mounted on the top of the transmission box. The bottom end of the rotating rod is fixedly connected to the rectangular frame plate. The high-pressure nozzle is mounted on the top of the rotating rod.

[0009] Preferably, a horizontal plate is fixedly installed inside the transmission box, and the horizontal plate is located at the top of the shaft. The driven bevel gear is rotatably connected to the horizontal plate through a rotating shaft.

[0010] Preferred: The interception and discharge mechanism includes an inner sheath, a slip ring, a compression spring, a conical small-hole filter screen, an outer sheath, a waste discharge pipe, and a rotating component; The inner sheath is fixedly installed at the end of the rear tube near the front tube, and the end of the inner sheath near the front tube is open. The slip ring is slidably installed between the inner sheath and the outside of the rear tube. The compression spring is fitted on the outside of the rear tube, and the two ends of the compression spring abut against the ends of the slip ring and the inner sheath, respectively. A tapered perforated filter screen is fixedly installed at one end of the slip ring near the front end tube. The end of the tapered perforated filter screen is inserted into the interior of the front end tube, and the outer side of the tapered perforated filter screen is in contact with the inner wall of the front end tube. The outer sheath is fixed to one end of the front tube near the rear tube. The inner side of the outer sheath is fixedly connected to the outer side of the inner sheath. The bottom end of the outer sheath is connected to a waste discharge pipe. The inner sleeve has a rotating component inside, which is used to control the rotation of the slip ring when it slides axially.

[0011] Preferably, the rotating component includes a guide rod and a spiral guide groove. The guide rod is uniformly fixed on the outside of the rear end tube in the circumferential direction. The end of the slip ring away from the tapered small hole filter screen is provided with a spiral guide groove that slides with the guide rod. The guide rod slides inside the spiral guide groove.

[0012] Preferably, there are four sets of guide rods, and the included angle between two adjacent sets of guide rods is 90°.

[0013] Preferably, the inner wall of the inner sheath near the front end of the tube is provided with a sealing ring, and the sealing ring is in a sealed fit with the outer wall of the slip ring.

[0014] Preferably, the tracked vehicle is equipped with a protective cover on top, and the protective cover covers the top of the interception and discharge mechanism.

[0015] Preferably, the top of the rotating rod is fixed with a mounting sleeve, and the high-pressure nozzle is fixed inside the mounting sleeve.

[0016] The beneficial effects of this invention are as follows: This invention provides a solid waste pollution dredging device. By installing a conical large-pore filter screen at the inlet end of the front-end pipe, it can perform primary filtration of large-particle solid waste in the pumped sludge. Combined with the interception and discharge mechanism between the front-end and rear-end pipes, which consists of an inner sleeve, slip ring, compression spring, conical small-pore filter screen, outer sleeve, waste discharge pipe, guide rod, and spiral guide groove, it can perform secondary filtration of small-diameter solid waste passing through the large-pore filter screen during sludge pumping operations. At the same time, the conical small-pore filter screen in the interception and discharge mechanism adopts a floating structure design. When too much small-diameter solid waste accumulates and causes blockage of the conical small-pore filter screen, the suction force of the sludge pump can drive the conical small-pore filter screen to move away from the front-end pipe, so that the intercepted small-diameter solid waste can be automatically discharged. After the solid waste is discharged, the conical small-pore filter screen can be automatically reset by the elastic force of the compression spring. While ensuring the solid waste interception effect throughout the process, it effectively avoids small-particle solid waste entering the sludge pump and causing impact wear on the components, thus significantly improving the service life of the equipment. By integrating a crushing roller and a high-pressure nozzle at the top of the mounting frame, the compacted mud can be loosened and pre-treated by a combination of mechanical crushing and high-pressure flushing during operation. A swing mechanism consisting of a driving bevel gear, a horizontal plate, a driven bevel gear, a lever, a rectangular frame, a rotating rod, a mounting sleeve, and a transmission box is also installed. This swing mechanism is linked to the drive motor of the crushing roller, synchronously driving the high-pressure nozzle to swing back and forth during the rotation of the crushing roller, achieving a swing-type reciprocating flushing of the mud, effectively expanding the flushing coverage area, significantly improving the mud loosening effect, and enhancing the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the protective cover of the present invention; Figure 3 This is a schematic diagram of the top structure of the mounting bracket of the present invention; Figure 4 This is a schematic cross-sectional view of the overall structure of the mounting bracket of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the swing mechanism of the present invention; Figure 6 This is a cross-sectional view of the overall structure at the connection between the front end tube and the rear end tube of the present invention; Figure 7 This is a schematic diagram of the internal structure of the outer sheath and inner sheath of the present invention; Figure 8 This is a schematic diagram of the end structure of the rear tube of the present invention; Figure 9 This is a schematic diagram of the outer structure of the slip ring of the present invention.

[0018] In the diagram: 1. Tracked vehicle; 2. Mounting frame; 3. Drive motor; 4. Shaft; 5. Crushing roller; 6. High-pressure nozzle; 7. Swinging mechanism; 701. Driving bevel gear; 702. Horizontal plate; 703. Driven bevel gear; 704. Lever; 705. Rectangular frame plate; 706. Rotating rod; 707. Mounting sleeve; 708. Transmission box; 8. Front-end tube; 9. Conical large-pore filter screen; 10. Rear-end tube; 11. Interception and discharge mechanism; 1101. Inner sheath; 1102. Slip ring; 1103. Compression spring; 1104. Conical small-hole filter screen; 1105. Outer sheath; 1106. Waste discharge pipe; 1107. Guide rod; 1108. Spiral guide groove; 12. Storage tank; 13. Slurry pump; 14. Protective cover. Detailed Implementation

[0019] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] Example 1: As Figures 1-9 As shown, this embodiment provides a solid waste pollution dredging device, including a tracked vehicle 1 and a slurry pump 13 installed on the top of the tracked vehicle 1; A mounting frame 2 is fixedly installed at the front end of the tracked vehicle 1, and a siltation loosening component is provided on the top of the mounting frame 2; The silt loosening assembly includes a drive motor 3, a crushing roller 5, and a high-pressure nozzle 6. The drive motor 3 is fixedly installed on the side of the mounting frame 2. A shaft 4 is coaxially fixedly installed on the output shaft of the drive motor 3. The end of the shaft 4 away from the drive motor 3 is fixedly connected to the crushing roller 5. The high-pressure nozzle 6 is located at the top of the crushing roller 5. A swing mechanism 7 is provided at the bottom of the high-pressure nozzle 6. The swing mechanism 7 is connected to the shaft 4 for transmission and is used to synchronously drive the high-pressure nozzle 6 to swing back and forth during the rotation of the crushing roller 5. The bottom of the mounting frame 2 is equipped with a front end pipe 8. A conical large-hole filter screen 9 is fixed at the front inlet end of the front end pipe 8. A rear end pipe 10 is installed at the input end of the slurry pump 13. An interception and discharge mechanism 11 is provided between the rear outlet end of the front end pipe 8 and the end of the rear end pipe 10. The interception and discharge mechanism 11 is used to perform secondary filtration on small-diameter solid waste in the pumped slurry and to automatically discharge the intercepted solid waste online.

[0021] During operation, the tracked vehicle 1 moves the entire device to the area to be dredged, aligns the silt loosening component at the front end of the mounting frame 2 with the hardened silt layer to be cleaned, and simultaneously starts the drive motor 3 and the slurry pump 13 to complete the silt loosening and slurry suction operations.

[0022] In the silt loosening operation, after the drive motor 3 starts, it drives the shaft 4, which is coaxially fixed on the output shaft, to rotate. The shaft 4 synchronously drives the crushing roller 5, which is fixed at the end, to rotate. The rotating crushing roller 5 directly crushes the compacted silt layer, breaking up the clumps of bottom mud and solid waste, thus completing the first stage of silt loosening. At the same time, during the rotation of the shaft 4, the high-pressure nozzle 6 is synchronously driven to reciprocate through the swing mechanism 7 connected by the transmission. The high-pressure nozzle 6 is connected to a high-pressure water supply system. The high-pressure water jets sprayed out perform secondary flushing and loosening on the crushed silt layer, so that the compacted bottom mud and solid waste are fully dispersed into flowable slurry.

[0023] In the slurry suction and graded filtration operation, after the slurry pump 13 starts, a continuous suction negative pressure is formed inside the front-end pipe 8 and the rear-end pipe 10. The loosened slurry flows towards the inlet end of the front-end pipe 8 under the action of negative pressure. First, it passes through the conical large-pore filter 9 fixed at the inlet end of the front-end pipe 8. The conical large-pore filter 9 performs primary filtration and interception of large-diameter block solid waste in the slurry to prevent large-volume solid waste from entering the pipeline and causing flow blockage. The slurry passing through the large-pore filter continues to flow into the pipeline and passes through the interception and discharge mechanism 11 set between the front-end pipe 8 and the rear-end pipe 10. The interception and discharge mechanism 11 performs secondary precise filtration and interception of small-diameter hard solid waste in the slurry. The clean slurry after interception enters the slurry pump 13 through the rear-end pipe 10 and is finally transported by the slurry pump 13 to the subsequent treatment stage.

[0024] When excessive accumulation of small-diameter solid waste in the interception and discharge mechanism 11 causes internal blockage, the continuous suction of the slurry pump 13 increases the negative pressure inside the interception and discharge mechanism 11. Under the action of negative pressure suction, the interception and discharge mechanism 11 discharges the small-diameter solid waste online, and resets the interception and discharge mechanism 11 after the solid waste is discharged, ensuring the continuous interception and filtration effect of the interception and discharge mechanism 11.

[0025] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details: In this embodiment, the tracked vehicle 1 is provided with a storage tank 12 on its top, and the storage tank 12 is located below the interception and discharge mechanism 11, for storing intercepted and discharged small-diameter solid waste.

[0026] The slurry carrying small-diameter solid waste discharged by the interception and discharge mechanism 11 falls directly into the storage tank 12 below. The storage tank 12 collects and stores the discharged solid waste in a centralized manner, preventing the slurry containing solid waste from falling back into the dredging water body and causing secondary pollution. At the same time, the solid waste collected in the storage tank 12 can be centrally transferred and disposed of after the operation is completed, improving the environmental friendliness of the dredging operation and the convenience of solid waste disposal.

[0027] In this embodiment, the swing mechanism 7 includes a transmission box 708, a driving bevel gear 701, a driven bevel gear 703, a lever 704, a rectangular frame plate 705, and a rotating rod 706; The transmission box 708 is fixed on the top of the mounting bracket 2. The shaft 4 passes through the transmission box 708 and rotates with the transmission box 708. The driving bevel gear 701 is coaxially fixed on the outside of the shaft 4 located inside the transmission box 708. The driven bevel gear 703 is rotatably assembled inside the transmission box 708, and the driven bevel gear 703 meshes with the driving bevel gear 701. The lever 704 is eccentrically fixed to the end face of the driven bevel gear 703. The rectangular frame plate 705 is sleeved on the outside of the lever 704 and slides in cooperation with the lever 704. The rotating rod 706 is rotatably mounted on the top of the transmission box 708. The bottom end of the rotating rod 706 is fixedly connected to the rectangular frame plate 705. The high-pressure nozzle 6 is mounted on the top of the rotating rod 706.

[0028] During the rotation of the shaft 4 driven by the drive motor 3, the shaft 4 synchronously drives the active bevel gear 701 inside the transmission box 708 to rotate coaxially. The active bevel gear 701 drives the driven bevel gear 703 to rotate synchronously through meshing transmission. When the driven bevel gear 703 rotates, it drives the lever 704, which is eccentrically fixed at the end face, to make a circular motion. During the circular motion, the lever 704 slides back and forth along the inner side wall of the rectangular frame plate 705, and at the same time drives the rectangular frame plate 705 to make a reciprocating forward and reverse swing. The rectangular frame plate 705 synchronously drives the rotating rod 706 fixed at the top to make a reciprocating forward and reverse rotation around its own axis. Finally, the rotating rod 706 drives the high-pressure nozzle 6 installed at the top to make a reciprocating swing, realizing the swing-type dynamic flushing of high-pressure water flow.

[0029] In this embodiment, a horizontal plate 702 is fixedly installed inside the transmission box 708, and the horizontal plate 702 is located at the top of the shaft 4. The driven bevel gear 703 is rotatably connected to the horizontal plate 702 through a rotating shaft.

[0030] The horizontal plate 702 provides a stable rotational mounting support for the driven bevel gear 703, limiting the driven bevel gear 703 to a height position that precisely meshes with the driving bevel gear 701. This prevents the driven bevel gear 703 from axially moving or radially shifting during rotation, ensuring the stability and accuracy of the meshing transmission between the driving bevel gear 701 and the driven bevel gear 703. At the same time, it isolates the transmission structure inside the transmission box 708 from the shaft 4 below, preventing interference between rotating parts and improving the stability and service life of the swing mechanism 7.

[0031] In this embodiment, the interception and discharge mechanism 11 includes an inner sheath 1101, a slip ring 1102, a compression spring 1103, a tapered small hole filter screen 1104, an outer sheath 1105, a waste discharge pipe 1106, and a rotating component; The inner sleeve 1101 is fixedly installed at one end of the rear end tube 10 near the front end tube 8, and the end of the inner sleeve 1101 near the front end tube 8 is open. The slip ring 1102 is slidably installed between the inner sleeve 1101 and the outer side of the rear end tube 10. The compression spring 1103 is fitted on the outer side of the rear end tube 10, and the two ends of the compression spring 1103 abut against the ends of the slip ring 1102 and the inner sleeve 1101, respectively. A tapered perforated filter screen 1104 is fixedly installed at one end of the slip ring 1102 near the front end tube 8. The end of the tapered perforated filter screen 1104 is inserted into the interior of the front end tube 8, and the outer side of the tapered perforated filter screen 1104 is in contact with the inner wall of the front end tube 8. The outer sheath 1105 is fixed to one end of the front end tube 8 near the rear end tube 10. The inner side of the outer sheath 1105 is fixedly connected to the outer side of the inner sheath 1101. The bottom end of the outer sheath 1105 is connected to the waste discharge pipe 1106. The inner sleeve 1101 has a rotating component inside, which is used to control the rotation of the slip ring 1102 when the slip ring 1102 slides axially.

[0032] Under normal filtration operation, the spring force of the compression spring 1103 pushes the slip ring 1102 towards the front end tube 8, so that the conical small-hole filter screen 1104 fixed at the end of the slip ring 1102 is stably inserted into the interior of the front end tube 8. The outer side of the conical small-hole filter screen 1104 is tightly fitted with the inner wall of the front end tube 8, forming a closed filtration channel. When the slurry after primary filtration by the conical large-hole filter screen 9 flows through the conical small-hole filter screen 1104, small-particle hard solid waste is intercepted in the conical small-hole filter screen 1104. The front surface of the 4-channel filter completes secondary filtration. When the mesh of the conical micro-pore filter 1104 is blocked by solid waste, the pressure difference between the front and back surfaces of the conical micro-pore filter 1104 increases continuously with the continuous suction of the slurry pump 13. When the axial suction force generated by the pressure difference is greater than the elastic force of the compression spring 1103, the suction force drives the conical micro-pore filter 1104 and the slip ring 1102 to slide axially towards the rear end pipe 10 in sync, while compressing the compression spring 1103, causing the conical micro-pore filter 1104 to... 04. The conical micro-perforated filter screen 1104 is dislodged from the inside of the front-end pipe 8, and an annular waste discharge gap is formed between the conical micro-perforated filter screen 1104 and the outlet end of the front-end pipe 8. The solid waste intercepted on the upstream side of the conical micro-perforated filter screen 1104 enters the interior of the outer sheath 1105 with the sludge through the waste discharge gap, and is finally discharged through the waste discharge pipe 1106 at the bottom of the outer sheath 1105. After the solid waste is discharged, the mesh of the conical micro-perforated filter screen 1104 is restored to unobstructed, the pressure difference on both sides of the filter screen decreases rapidly, and the restoring force of the compression spring 1103 pushes the slip ring 110. 2. The conical small-hole filter screen 1104 slides back towards the front end tube 8 and is re-inserted into the front end tube 8, restoring the closed filter channel and continuing the secondary filtration operation. At the same time, during the axial sliding of the slip ring 1102, the rotating component synchronously drives the slip ring 1102 to rotate around its own axis, thereby driving the conical small-hole filter screen 1104 to rotate synchronously. The centrifugal force generated by the rotation quickly throws away the solid waste attached to the surface of the filter screen, accelerating the unblocking of the filter screen.

[0033] In this embodiment, the rotating component includes a guide rod 1107 and a spiral guide groove 1108. The guide rod 1107 is uniformly fixed on the outer side of the rear end tube 10 in the circumferential direction. The slip ring 1102 has a spiral guide groove 1108 that slides with the guide rod 1107 at one end away from the tapered small hole filter screen 1104. The guide rod 1107 slides inside the spiral guide groove 1108.

[0034] The spiral guide groove 1108 adopts a spiral inclined groove structure. During the process of the slip ring 1102 sliding along the rear end tube 10, the guide rod 1107 fixed on the outside of the rear end tube 10 slides relative to the spiral guide groove 1108 at the end of the slip ring 1102. Under the limiting and guiding action of the guide rod 1107, the spiral guide groove 1108 converts the axial linear motion of the slip ring 1102 into rotational motion around the axis, so that the slip ring 1102 completes the rotational action simultaneously while sliding axially.

[0035] In this embodiment, four sets of guide rods 1107 are provided, and the included angle between two adjacent sets of guide rods 1107 is 90°.

[0036] The guide rod 1107 provides multi-point uniform guiding support for the axial sliding and rotational motion of the slip ring 1102, avoiding the problem of unilateral wear and jamming of the slip ring 1102 during sliding and rotation, and ensuring the smoothness of the axial sliding and circumferential rotation of the slip ring 1102.

[0037] In this embodiment, the inner wall of the inner sheath 1101 near the end of the front tube 8 is provided with a sealing ring, and the sealing ring is sealed and fitted to the outer wall of the slip ring 1102.

[0038] The sealing ring seals the gap between the inner sleeve 1101 and the slip ring 1102, which not only prevents slurry from entering the gap and causing the slip ring 1102 to get stuck, but also maintains the stability of the suction negative pressure in the pipeline, ensuring that the slip ring 1102 can slide axially and return to its elastic state stably.

[0039] In this embodiment, the tracked vehicle 1 is provided with a protective cover 14 on its top, and the protective cover 14 covers the top of the interception and discharge mechanism 11.

[0040] During the dredging operation, splashing mud, gravel, and debris at the work site should be prevented from directly impacting and adhering to the outer surface of the interception and discharge mechanism 11. In addition, the protective cover 14 can shield the slurry leaking from the pipeline, preventing slurry splashing and polluting the work environment, and improving the environmental friendliness of the equipment operation.

[0041] In this embodiment, a mounting sleeve 707 is fixed to the top of the rotating rod 706, and the high-pressure nozzle 6 is fixedly mounted inside the mounting sleeve 707.

[0042] The mounting sleeve 707 securely connects the high-pressure nozzle 6 to the rotating rod 706, ensuring that the swinging power of the rotating rod 706 can be stably transmitted to the high-pressure nozzle 6, preventing the high-pressure nozzle 6 from loosening or shifting during reciprocating swing and high-pressure spraying, and ensuring the stability of the high-pressure flushing operation.

[0043] The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. When the entire device is in operation, the tracked vehicle 1 drives the device into position, and the drive motor 3 starts, synchronously driving the crushing roller 5 to rotate and crush, and the swing mechanism 7 drives the high-pressure nozzle 6 to swing and flush, completing the dual-mode loosening of the silt layer; the slurry pump 13 starts simultaneously, and draws the dispersed slurry through the front pipe 8. The slurry first passes through the conical large-pore filter screen 9 to complete the primary filtration of large particles of solid waste, and then passes through the conical small-pore filter screen 1104 to complete the secondary filtration of small particles of solid waste. The clean slurry enters the slurry pump 13 and is then transported to the subsequent stages; when the conical small-pore filter screen 1104 is blocked, the pipeline pressure difference drives the slip ring 1102 to move the conical small-pore filter screen 1104 backward, and completes the automatic slag discharge in conjunction with the rotation of the rotating parts. After the slag discharge is completed, the squeeze spring 1103 pushes the filter screen to reset and restore the filtration state. The entire process does not require stopping the machine, realizing continuous sludge removal operation.

[0044] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A solid waste pollution dredging device, comprising a tracked vehicle (1) and a slurry pump (13) mounted on top of the tracked vehicle (1), characterized in that: A mounting frame (2) is fixedly installed at the front end of the tracked vehicle (1), and a siltation loosening component is provided on the top of the mounting frame (2); The silt loosening assembly includes a drive motor (3), a crushing roller (5), and a high-pressure nozzle (6). The drive motor (3) is fixedly installed on the side of the mounting frame (2). A shaft (4) is coaxially fixedly installed on the output shaft of the drive motor (3). The end of the shaft (4) away from the drive motor (3) is fixedly connected to the crushing roller (5). The high-pressure nozzle (6) is located on the top of the crushing roller (5). A swing mechanism (7) is provided at the bottom of the high-pressure nozzle (6). The swing mechanism (7) is connected to the shaft (4) for transmission. It is used to synchronously drive the high-pressure nozzle (6) to swing back and forth during the rotation of the crushing roller (5). The bottom of the mounting bracket (2) is equipped with a front end pipe (8), and a conical large-hole filter screen (9) is fixed at the front end inlet of the front end pipe (8). The input end of the slurry pump (13) is equipped with a rear end pipe (10). An interception and discharge mechanism (11) is provided between the rear end outlet of the front end pipe (8) and the end of the rear end pipe (10). The interception and discharge mechanism (11) is used to perform secondary filtration on small-particle solid waste in the pumped slurry and to automatically discharge the intercepted solid waste online.

2. The solid waste pollution dredging device according to claim 1, characterized in that: The tracked vehicle (1) has a storage tank (12) on its top, and the storage tank (12) is located below the interception and discharge mechanism (11) for storing small-diameter solid waste that is intercepted and discharged.

3. The solid waste pollution dredging device according to claim 1, characterized in that: The swing mechanism (7) includes a transmission box (708), a driving bevel gear (701), a driven bevel gear (703), a lever (704), a rectangular frame plate (705), and a rotating rod (706). The transmission box (708) is fixed on the top of the mounting bracket (2), the shaft (4) passes through the transmission box (708) and rotates with the transmission box (708), the driving bevel gear (701) is coaxially fixed on the outside of the shaft (4) located inside the transmission box (708), and the driven bevel gear (703) is rotatably assembled inside the transmission box (708), and the driven bevel gear (703) meshes with the driving bevel gear (701); The lever (704) is eccentrically fixed to the end face of the driven bevel gear (703). The rectangular frame plate (705) is sleeved on the outside of the lever (704) and slides in cooperation with the lever (704). The rotating rod (706) is rotatably mounted on the top of the transmission box (708). The bottom end of the rotating rod (706) is fixedly connected to the rectangular frame plate (705). The high-pressure nozzle (6) is mounted on the top of the rotating rod (706).

4. A solid waste pollution dredging device according to claim 3, characterized in that: A horizontal plate (702) is fixedly installed inside the transmission box (708), and the horizontal plate (702) is located at the top of the shaft (4). The driven bevel gear (703) is rotatably connected to the horizontal plate (702) through a rotating shaft.

5. A solid waste pollution dredging device according to claim 1, characterized in that: The interception and discharge mechanism (11) includes an inner sheath (1101), a slip ring (1102), a compression spring (1103), a conical small-hole filter screen (1104), an outer sheath (1105), a waste discharge pipe (1106), and a rotating component; The inner sleeve (1101) is fixedly installed at one end of the rear end tube (10) near the front end tube (8), and the end of the inner sleeve (1101) near the front end tube (8) is open. The slip ring (1102) is slidably installed between the inner sleeve (1101) and the outer side of the rear end tube (10). The compression spring (1103) is fitted on the outer side of the rear end tube (10), and the two ends of the compression spring (1103) abut against the ends of the slip ring (1102) and the inner sleeve (1101) respectively. A conical small hole filter screen (1104) is fixedly installed at one end of the slip ring (1102) near the front end tube (8). The end of the conical small hole filter screen (1104) is inserted into the interior of the front end tube (8), and the outer side of the conical small hole filter screen (1104) is in contact with the inner wall of the front end tube (8). The outer sheath (1105) is fixed to one end of the front end tube (8) near the rear end tube (10). The inner side of the outer sheath (1105) is fixedly connected to the outer side of the inner sheath (1101). The bottom end of the outer sheath (1105) is connected to the waste discharge pipe (1106). The inner sleeve (1101) has a rotating component inside, which is used to control the rotation of the slip ring (1102) when the slip ring (1102) slides axially.

6. A solid waste pollution dredging device according to claim 5, characterized in that: The rotating component includes a guide rod (1107) and a spiral guide groove (1108). The guide rod (1107) is uniformly fixed on the outside of the rear end tube (10) in the circumferential direction. The slip ring (1102) has a spiral guide groove (1108) at one end away from the conical small hole filter screen (1104) that slides with the guide rod (1107). The guide rod (1107) slides inside the spiral guide groove (1108).

7. A solid waste pollution dredging device according to claim 6, characterized in that: There are four sets of guide rods (1107), and the included angle between two adjacent sets of guide rods (1107) is 90°.

8. A solid waste pollution dredging device according to claim 5, characterized in that: The inner sleeve (1101) has a sealing ring on the inner wall near the front end of the tube (8), and the sealing ring is sealed and fitted to the outer wall of the slip ring (1102).

9. A solid waste pollution dredging device according to claim 1, characterized in that: The tracked vehicle (1) is provided with a protective cover (14) on top, and the protective cover (14) covers the top of the interception and discharge mechanism (11).

10. A solid waste pollution dredging device according to claim 3, characterized in that: The top of the rotating rod (706) is fixed with a mounting sleeve (707), and the high-pressure nozzle (6) is fixedly mounted inside the mounting sleeve (707).

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