Riverway sludge treatment system

Abstract

The present application relates to the technical field of river bottom sludge treatment, and discloses a river sludge treatment system which comprises a ground treatment unit, a dredging unit and a conveying unit, the dredging unit is detachably connected with the ground treatment unit through the conveying unit, the dredging unit comprises a dredging ship, a dredging module, a power module and a control module, a temporary storage bin is matched on the dredging ship, dredging modules are symmetrically installed on the left and right sides of the dredging ship, the dredging module comprises an overhanging mechanism, an upper rotating seat, a side turnover frame, a pipe seat, an elastic constraint assembly and a dredging pipe, the upper rotating seat is fixedly installed on the dredging ship through the overhanging mechanism, and the side turnover frame is installed on the upper rotating seat; the present application aims to solve the problems of the existing technology, such as the impact damage of the dredging equipment, the existence of the operation blind area, the low efficiency and the disconnection with the subsequent resource treatment link, by means of the self-adaptive bottom sinking and fan-shaped swinging dredging mechanism, so as to realize the low-disturbance, dead-angle-free and high-efficiency environmental protection dredging and resource integration operation.

Description

Technical Field

[0001] This invention belongs to the field of riverbed silt treatment technology, and specifically relates to a river silt treatment system. Background Technology

[0002] River silt is a viscous mixture rich in organic matter, heavy metals, and pollutants deposited in riverbeds. Excessive accumulation of silt can lead to a decline in the flood control capacity of rivers, water quality deterioration, and ecosystem degradation. It may also pose a long-term threat to the surrounding environment and water source safety through the release of pollutants. Therefore, regular and scientific dredging is an important measure to maintain the health of river networks and public safety.

[0003] Currently, river dredging mainly relies on traditional equipment such as mechanical dredging vessels and cutter suction dredgers. Mechanical dredging vessels use grab buckets or shovels for excavation, which can handle hard silt, but the operation causes significant disturbance, easily damages the original riverbed structure, and has a significant blind spot at the bottom. Cutter suction dredgers break up the mud layer and pump it out by rotating a cutter head, which can achieve continuous operation, but its core drawback is that the working head is in rigid contact or forced engagement with the riverbed. When encountering underwater rocks, construction waste, or other hard obstacles, it is very easy to get stuck, collide, or even suffer structural damage, leading to equipment failure and downtime. At the same time, this forced mechanical action can also cause irreversible impact and disturbance to the riverbed matrix. Summary of the Invention

[0004] To address the existing defects and problems, this invention provides a river silt treatment system. This invention aims to solve the problems of existing dredging equipment being susceptible to impact damage, having blind spots, low efficiency, and being disconnected from subsequent resource recovery processes by using an adaptive bottom-sinking and fan-shaped swing dredging mechanism. This achieves low-disturbance, blind-spot-free, and highly efficient integrated environmental dredging and resource recovery operations.

[0005] The solution adopted by this invention to solve its technical problem is: a river silt treatment system, including a ground treatment unit, a dredging unit, and a conveying unit. The dredging unit is detachably connected to the ground treatment unit through the conveying unit. The dredging unit includes a dredging vessel, dredging modules, a power module, and a control module. A temporary storage compartment is matched on the dredging vessel. Dredging modules are symmetrically installed on the left and right sides of the dredging vessel. The dredging module includes an extension mechanism, an upper rotating seat, a side-tilting frame, a pipe seat, an elastic constraint component, and a sludge suction pipe. The upper rotating seat is fixedly installed on the dredging vessel through the extension mechanism. The side-tilting frame is installed on the upper rotating seat. The pipe seat is rotatably installed on the top of the side-tilting frame and connected to the elastic constraint component. The elastic constraint component constrains the pipe in its natural state. The seat remains stationary; the control module can drive the rotating shaft of the pipe seat to rotate outward to a horizontal state via the side-tilting frame; the sludge suction pipe is installed inside the pipe seat, and in the retracted state, the tail end of the sludge suction pipe is set horizontally backward; the control module can drive the sludge suction pipe to extend parallel away from the dredging vessel via the extension mechanism; the front end of the sludge suction pipe extends forward out of the pipe seat and is connected to the temporary storage compartment via the power module; when the rotating shaft of the pipe seat is flipped to a horizontal state, the pipe seat will be driven to rotate by the weight of the sludge suction pipe, and drive the elastic constraint component to store energy, causing the tail end of the sludge suction pipe to tilt and sink into the riverbed; the control module can also drive the sludge suction pipe in the tilted and sunk state to rotate around the central rotating shaft of the upper rotating seat via the upper rotating seat, causing the movement trajectory of the tail end of the sludge suction pipe to cover the area below the dredging vessel.

[0006] The side-tilting frame includes a base plate, a top plate, and a tilting drive mechanism. The base plate is fixed on the upper rotating seat, and the top plate is arranged parallel to the base plate above it. The outer end of the top plate is hinged to the outer end of the base plate, and the other end of the top plate is connected to the tilting drive mechanism. The control module can drive the top plate to tilt outward around the hinge end and stand up through the tilting drive mechanism. Under the control of the control module, the hinge end of the side-tilting frame is always facing outward.

[0007] The flipping drive mechanism includes a telescopic cylinder disposed between the top plate and the bottom plate. The telescopic cylinder is electrically connected to the control module, and its two ends are respectively hinged to the bottom plate and the top plate.

[0008] The extension mechanism includes a lower rotating seat and a linear module. The linear module is fixedly mounted on the dredging vessel via the lower rotating seat, and the upper rotating seat is fixedly mounted on the slider seat of the linear module. The control module can drive the linear module to rotate horizontally and extend out of the dredging vessel via the lower rotating seat. During the extension process of the linear module, the control module controls the suction pipe to keep its tail end facing backward via the upper rotating seat. The control module can also drive the suction pipe to move outward and away from the dredging vessel via the linear module.

[0009] A lifting frame is fixedly installed at the bottom of the lower rotating seat. The lifting frame is fixedly installed on the dredging vessel and electrically connected to the control module to adjust the overall height of the dredging unit. A support frame is provided on the dredging vessel behind each extension mechanism to support the tail end of the dredging pipe that is suspended in the air when the dredging module is in the retracted state.

[0010] The elastic constraint component includes an elastic component and a constraint component. The constraint component includes a fixed block and a stop block. The fixed block is installed on a side-flipping frame on one side of the tube seat, and the stop block is fixedly installed on the side wall of the tube seat. The elastic component includes a tension spring fixedly installed on the side-flipping frame inside the tube seat. The other end of the tension spring is connected to the tube seat. In its natural state, the tension spring will pull the tube seat to rotate, so that the stop block and the fixed block remain in contact.

[0011] The upper part of the wall of the temporary storage tank is provided with an overflow port, which is connected to an overflow pipe extending to the outside of the ship; the mud-liquid mixture pumped into the temporary storage tank by the power module can overflow and be discharged through the overflow port.

[0012] The dredging unit also includes a pretreatment module. The front end of the dredging pipe is connected to the inlet of the pretreatment module through the power module, and the outlet of the pretreatment module is connected to the temporary storage chamber for preliminary filtration of the mud-liquid mixture.

[0013] The beneficial effects of this invention are as follows: The river silt treatment system provided by this invention utilizes an adaptive bottom-sinking mechanism based on self-weight settling and elastic constraints in the dredging unit. This allows the tail end of the dredging pipe to gently touch the bottom with low disturbance and passively lift or slide when encountering riverbed obstacles, effectively avoiding damage to the dredging equipment and riverbed structure from rigid impacts, and significantly improving operational reliability and environmental friendliness. Simultaneously, the upper rotating seat drives the inclined bottom-sinking dredging pipe to perform horizontal fan-shaped swings, ensuring that the movement trajectory of its tail end covers the area beside the dredging vessel and even directly below its bottom. Combined with the vessel's movement, this achieves blind-spot-free, continuous strip-shaped dredging of the river cross-section, greatly improving the efficiency and coverage of single-vessel operations. The modular design of the system allows for rapid docking and separation of the dredging, transportation, and ground treatment units. Detachable pipes enable seamless connection between silt pumping from the river to onshore resource recovery, shortening vessel downtime. Finally, dewatering and solidification transform the silt into usable soil, forming a closed-loop sludge treatment system that balances environmental protection and economic efficiency. In addition, the dredging module can be retracted to a storage state parallel to the hull via a rotation and translation mechanism, reducing the navigation width. The optional lifting storage compartment and support frame further enhance the equipment's maneuverability and storage safety. The pretreatment module set on the suction path can pre-filter large-sized debris, effectively preventing blockage and wear of subsequent pipelines and equipment, and enhancing the system's adaptability to complex working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the frame structure of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the dredging unit of the present invention.

[0016] Figure 3 This is a schematic diagram of the extension mechanism of the present invention.

[0017] Figure 4 This is a schematic diagram of the linear module structure of the present invention.

[0018] Figure 5 This is a schematic diagram of the elastic constraint component structure of the present invention.

[0019] Figure 6 This is a schematic diagram of the rotating seat structure of the present invention.

[0020] Figure 7 This is a schematic diagram of the side-tilting frame structure of the present invention.

[0021] Figure 8 This is a schematic diagram of the tilting of the suction pipe by its own weight according to the present invention.

[0022] Figure 9 This is a schematic diagram of the fan-shaped swing range of the suction pipe of the present invention.

[0023] The diagram is labeled as follows: 1 is the dredging vessel, 11 is the temporary storage bin, 12 is the overflow hole, 13 is the receiving bin, 2 is the pretreatment module, 3 is the extension mechanism, 31 is the lower rotating seat, 311 is the lower seat shell, 312 is the central rotating shaft, 313 is the turbine, 314 is the worm gear, 315 is the tilting drive mechanism, 32 is the linear module, 321 is the linear guide rail, 323 is the slider seat, 324 is the lead screw drive assembly, 33 is the lifting frame, 34 is the support frame, 4 is the upper rotating seat, 5 is the side tilting frame, 51 is the bottom plate, 52 is the top plate, 53 is the telescopic cylinder, 54 is the pin, 6 is the pipe seat, 71 is the fixing block, 72 is the stop block, 73 is the tension spring, and 8 is the dredging pipe. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. In this application, the end away from the hull and in contact with the riverbed is the stern end, and the end connected to the hull pipeline is the front end.

[0025] Example 1: As Figure 1-9 As shown, this embodiment provides a river silt treatment system, including a ground treatment unit, a dredging unit, and a conveying unit. The ground treatment unit is used for dewatering, solidifying, and pre-treating the silt for resource utilization. The dredging unit is used for pumping and temporarily storing silt from the river. The conveying unit is detachably connected between the dredging unit and the ground treatment unit. When the dredging unit docks at the riverbank, the temporarily stored silt is transferred to the ground treatment unit.

[0026] When in use, the dredging unit is fully loaded or needs to unload sludge, and it docks at the shore. In this embodiment, the conveying unit is a detachable pipeline system consisting of a high-pressure pump and quick connectors, which connects the dredging unit to the ground dewatering and solidification unit. The temporarily stored sludge is transported to the ground dewatering and solidification unit. After receiving the sludge, the ground dewatering and solidification unit performs deep dewatering, stabilization, and resource-based pretreatment by adding solidifying agents and mechanical filtration, producing mud cakes that can be used for roadbed filling, landscaping soil, etc.

[0027] like Figure 1 and Figure 2 As shown, the dredging unit includes a dredging vessel 1, a dredging module, a power module, and a control module. The dredging vessel 1 is the main body and has a built-in PLC or industrial control computer to form the control module. The dredging vessel 1 is equipped with a temporary storage tank 11, which is welded from high-strength steel plates. Its top is open. The tank wall at the stern of the temporary storage tank 11 has several overflow holes 12 near the top. Each overflow hole 12 is connected to a main overflow pipe through a pipe. This pipe extends to the outside of the hull and is used to discharge the upper layer of clarified water in the tank back into the river channel.

[0028] Two identical dredging modules are symmetrically installed on the left and right sides of the dredging vessel 1. The dredging modules are connected to the power module, which provides power for the dredging module to pump silt from the riverbed. The dredging module includes an extension mechanism 3, an upper rotating seat 4, a side-tilting frame 5, a pipe seat 6, an elastic constraint component, and a dredging pipe 8. The upper rotating seat 4 is fixedly installed on the dredging vessel 1 through the extension mechanism 3. The side-tilting frame 5 is installed on the upper rotating seat 4. The pipe seat 6 is rotatably installed on the top of the side-tilting frame 5 and connected to the elastic constraint component. The elastic constraint component constrains the pipe seat 6 to remain stationary in its natural state. The dredging pipe 8 is installed inside the pipe seat 6. In the retracted state, the tail end of the dredging pipe 8 is horizontally positioned with its tail end facing backward. The front end of the dredging pipe 8 extends forward out of the pipe seat 6 and is connected to the temporary storage chamber 11 through the power module. The power module provides power for the dredging operation of the dredging pipe 8. The front end of the dredging pipe 8 is connected to the suction end of the power module through a hose. The control module can drive the dredging pipe 8 to extend parallel away from the dredging vessel 1 through the extension mechanism 3.

[0029] Specifically: the extension mechanism 3 includes a lower rotating seat 31 and a linear module 32. The lower rotating seat 31 has a similar structure to the upper rotating seat 4, and both are provided with a central rotating shaft 312, wherein the lower rotating seat 31 is the central rotating shaft a and the upper rotating seat 4 is the central rotating shaft b.

[0030] In this embodiment, the lower rotating base 31 also includes a lower base housing 311, a transmission assembly a, and a driving component a. The lower base housing 311 is fixedly installed on the dredging vessel 1 by bolts. The central rotating shaft a is vertically rotatably installed inside the lower base housing 311 and is connected to the driving component a through the transmission assembly a. The top of the central rotating shaft a extends upward out of the lower base housing 311 and is coaxially fixed with a flange for fixing the linear module 32. The driving component a is electrically connected to the control module and can drive the central rotating shaft a to rotate at a certain angle.

[0031] There are various types of transmission components a and driving components a. In this embodiment, transmission component a includes a worm gear and a worm 314. The driving component a is an extension motor that is fixedly installed on the lower housing 311 and electrically connected to the control module. The turbine 313 is fixedly mounted on the central rotating shaft a inside the lower housing 311. The worm 314 is rotatably installed inside the lower housing 311 on one side of the turbine 313 and meshes with the turbine 313. The worm 314 is connected to the extension motor in a transmission connection.

[0032] The linear module 32 is an existing screw-type linear module 32, including a transverse platform and a linear guide rail 321, a slider, a slider seat 323 and a screw drive assembly 324 mounted on the transverse platform. The screw drive assembly 324 is connected to the control module, and the control module can drive the slider seat 323 to slide along the linear guide rail 321 through the screw drive assembly 324. The transverse platform of the linear module 32 is fixedly mounted on the dredging vessel 1 through the lower rotating seat 31. The front end of the transverse platform of the linear module 32 is directly fixedly connected to the flange on the top of the lower rotating seat 31 by bolts. When the dredging module is in the storage state, the transverse platform of the linear module 32 is set horizontally backward to reduce the width of the dredging vessel 1.

[0033] The upper rotating seat 4 has the same structure as the lower rotating seat 31, including an upper seat shell, a central rotating shaft b, a transmission assembly b, and a driving component b. The upper seat shell is fixedly mounted on the slider seat 323 of the linear module 32 by bolts. The central rotating shaft b is mounted vertically inside the upper seat shell and is connected to the driving component b through the transmission assembly b. The top of the central rotating shaft b extends upward out of the upper seat shell and is coaxially fixed with a flange for fixing the side tilting frame 5. The driving component b is electrically connected to the control module and can drive the central rotating shaft b to rotate at a certain angle. In this embodiment, the transmission assembly b and the driving component b of the upper rotating seat 4 have the same structure as the transmission assembly a and the driving component a in the lower rotating seat 31.

[0034] In use, the control module can drive the linear module 32 to rotate horizontally and extend the dredging vessel 1 vertically through the lower rotating seat 31. During the process of the linear module 32 rotating and extending the dredging vessel 1, the control module will control the suction pipe 8 to keep its tail end facing backward through the upper rotating seat 4 to avoid the suction pipe 8 colliding with the riverbank. After the linear module 32 extends the dredging vessel 1 horizontally and vertically, the control module controls the lead screw drive assembly 324 of the linear module 32 to drive the slider seat 323 electric suction pipe 8 to move outward and away from the dredging vessel 1 along the linear guide rail 321.

[0035] like Figure 7 As shown, the side-tilting frame 5 includes a base plate 51, a top plate 52, and a tilting drive mechanism 315. The base plate 51 is fixedly connected to the flange on the top of the upper rotating seat 4 by bolts. The top plate 52 is arranged parallel to the base plate 51, and the outer end of the top plate 52 is hinged to the outer end of the base plate 51 by a pin 54. The other end of the top plate 52 is connected to the tilting drive mechanism 315. The tilting drive mechanism 315 includes a telescopic cylinder 53 arranged between the top plate 52 and the base plate 51. The telescopic cylinder 53 is electrically connected to the control module and is used to control the extension and retraction of the telescopic cylinder 53. The two ends of the telescopic cylinder 53 are respectively hinged to the base plate 51 and the top plate 52. The bottom of the tube seat 6 is provided with a rotating shaft. The rotating shaft is vertically mounted on the top of the side-tilting frame 5. The control module can drive the top plate 52 to tilt outward around the hinge end and stand up through the tilting drive mechanism 315, so that the rotating shaft of the tube seat 6 is tilted to a horizontal state. Under the control of the control module, the hinge ends of the two plates of the side-tilting frame 5 are always facing outward.

[0036] like Figure 8 As shown, when the shaft of the pipe seat 6 is flipped to a horizontal position, the pipe seat 6 will be driven to rotate by the weight of the dredging pipe 8, which will cause the elastic constraint component to store energy, causing the tail end of the dredging pipe 8 to tilt and sink into the riverbed, as shown. Figure 8 As shown, in this state, the control module can drive the dredging pipe 8, which is in an inclined, submerged state, to rotate around the central axis 312 of the upper rotating seat 4 via the upper rotating seat 4. This causes the tail end of the dredging pipe 8 to move and cover the area below the dredging vessel 1. The energy-stored elastic constraint component is used to drive the pipe seat 6 to reset the dredging pipe 8 after the tilting frame is reset. Specifically, the elastic constraint component includes an elastic component and a constraint component. The constraint component includes a fixing block 71 and a stop block 72. The fixing block 71 is installed on the tilting frame 5 on one side of the pipe seat 6, and the stop block 72... 2. Fixedly installed on the side wall of the pipe seat 6; the elastic component includes a tension spring 73 fixedly installed on the inner side tilting frame 5 of the pipe seat 6. The other end of the tension spring 73 is connected to the pipe seat 6. In its natural state, the tension spring 73 will pull the pipe seat 6 to rotate, so that the stop block 72 and the fixed block 71 are in contact. The direction in which the tension spring 73 pulls the pipe seat 6 to rotate is opposite to the direction in which the tail end of the dredging pipe 8 tilts and sinks into the river bottom. When the dredging pipe 8 tilts by its own weight, it will drive the pipe seat 6 to rotate synchronously. During this process, the rotating pipe seat 6 will stretch the tension spring 73 to store energy.

[0037] Before the dredging operation begins, the control module first controls the lower rotating seat 31 to rotate the linear module 32 from a retracted state parallel to the hull to an extended state perpendicular to the ship's side. During this rotation, the control module simultaneously controls the upper rotating platform to perform compensatory rotation, ensuring that the tail end of the dredging pipe 8 on the side-tilting frame 5 remains pulled back and parallel to the longitudinal direction of the hull, avoiding interference with the hull or the riverbanks on both sides. Next, the control module controls the lead screw drive assembly 324 on the linear module 32 to push the upper rotating platform, the side-tilting frame 5, and the dredging pipe 8 together to move outward from the ship, so that the tail end of the dredging pipe 8 moves away from the hull to a preset position. At this time, the dredging pipe 8 is still basically in a horizontal state. Then, the control module controls the tilting drive mechanism 315 of the side-tilting frame 5 to actuate, pushing the top plate 52 to rotate 90° outward around the pin 54, so that the rotating shaft of the pipe seat 6 rotates to a horizontal state. Due to the design of the center of gravity of the dredging pipe 8 and the pipe seat 6, the length of the dredging pipe 8 behind the pipe seat 6 is greater than the length of the dredging pipe 8 in front of the pipe seat 6. Therefore, under the action of gravity torque, the dredging pipe 8 will drive the pipe seat 6 to rotate around its axis, causing the tail end of the dredging pipe 8 to begin to tilt downward. Since the dredging pipe 8 is only connected through the flexible hose power module at this time, its tail end is in a suspended state. Thus, the tail end of the dredging pipe 8 will eventually gently touch the bottom at an angle that is appropriate to the natural slope of the riverbed. During this process, the tail end of the dredging pipe 8 sinks into the silt by its own weight and the weight of part of the pipe section, rather than being forcibly pressed in by the mechanical mechanism. Therefore, when the dredging vessel encounters hard subgrade, rocks or obstacles under the riverbed during its forward movement, the tail end of the dredging pipe 8 will be lifted or slid over, and the extended mechanism 3, the side tilting frame 5, the rotating platform, etc., will not bear huge impact forces, thus achieving adaptive avoidance and protecting the equipment and the riverbed.

[0038] After the sludge suction pipe 8 sinks to the bottom in an inclined state and begins suction, the control module activates the upper rotating seat 4, which drives the side tilting frame 5 and the entire inclined sludge suction pipe 8 to swing back and forth around the central axis 312 of the upper rotating seat 4. Since the sludge suction pipe 8 is long and inclined, the trajectory of its tail end on the horizontal plane is a fan-shaped surface. By accurately calculating the length of the sludge suction pipe 8, the initial outward extension distance and the swing angle, it is possible to design that this fan-shaped surface can cover most of the area from the side of the ship to directly below the keel line of the hull. Thus, when the upper rotating seat 4 rotates towards the hull, the tail end of the inclined sludge suction pipe 8 will swing towards the bottom of the dredging vessel 1; when rotating outward, it will swing towards a more distant part of the river channel. By coordinating the slow forward movement of the dredging vessel 1 with the left and right swing of the sludge suction pipe 8, blind-spot-free, strip-shaped dredging of the entire river channel cross section can be achieved.

[0039] Example 2: The difference between this example and Example 1 is that: the dredging vessel has symmetrically arranged receiving compartments 13 with open tops on the left and right sides. The two dredging modules are respectively installed in the corresponding receiving compartments 13. The bottom of the lower rotating seat 31 is fixedly installed with a lifting frame 33. The lifting frame 33 is fixedly installed in the receiving compartment 13 and is electrically connected to the control module. In this example, the lifting frame 33 is a hydraulic scissor type lifting frame 33, which is used to adjust the overall height of the dredging unit. Before the dredging operation begins, the control module first controls the lifting platform to lift, so that the entire linear module is lifted out of the receiving compartment 13.

[0040] Furthermore, each extension mechanism 3 has a support frame 34 in the receiving compartment 13 on the rear side, which is used to support the tail end of the dredging pipe 8 which is suspended in the air when the dredging module is stored.

[0041] Example 3: The difference between this example and Example 2 is that the dredging unit also includes a pretreatment module 2. The pretreatment module 2 is fixedly installed on the dredging vessel 1 in front of the temporary storage tank 11. The front end of the dredging pipe 8 is connected to the inlet of the pretreatment module 2 through the power module, and the outlet of the pretreatment module 2 is connected to the temporary storage tank 11. The pretreatment module 2 is an existing filter screen, which is used to perform preliminary filtration of stones, branches, garbage and other debris in the mud mixture.

[0042] It should be noted that the above embodiments and accompanying drawings are merely illustrative examples of the core principles and key structures of the "River Silt Treatment System" of this invention. The accompanying drawings are simplified schematic diagrams, intended to clearly illustrate the structural, process, or data flow relationships related to the innovative points of the technical solution, and are not intended to limit the complete form of the actual product. This specification focuses on the innovative technical means necessary to achieve the invention's objectives and solve the technical problems. While auxiliary or common-sense details such as "hull stability calculation," "hydraulic pipeline layout," "sensor signal anti-interference processing," "conventional anti-corrosion coating," and "standard parts fastening methods," which can be implemented by those skilled in the art without creative effort, are not elaborated upon, they should all be understood as naturally included in the specific implementation of this invention and fall within the protection and implementation scope of this technical solution.

Claims

1. A river silt treatment system, comprising a ground treatment unit, a dredging unit, and a conveying unit, wherein the dredging unit is detachably connected to the ground treatment unit via the conveying unit, characterized in that, The dredging unit includes a dredging vessel (1), a dredging module, a power module, and a control module. The dredging vessel (1) is equipped with a temporary storage compartment (11). The dredging modules are symmetrically installed on the left and right sides of the dredging vessel (1). The dredging module includes an extension mechanism (3), an upper rotating seat (4), a side-tilting frame (5), a pipe seat (6), an elastic constraint component, and a dredging pipe (8). The upper rotating seat (4) is fixedly installed on the dredging vessel (1) through the extension mechanism (3). The side-tilting frame (5) is installed on the upper rotating seat (4). The pipe seat (6) is rotatably installed on the top of the side-tilting frame (5) and connected to the elastic constraint component. The elastic constraint component constrains the pipe seat (6) to maintain a static posture in its natural state. The control module drives the side-tilting frame (5) to unfold, so that the rotation axis of the pipe seat (6) changes from vertical to horizontal. In the retracted state, the dredging pipe (8) is installed inside the pipe seat (6), and the tail end of the dredging pipe (8) is horizontally positioned with its tail end facing backward. The control module can drive the dredging pipe (8) to extend parallel away from the dredging vessel (1) through the extension mechanism (3). The front end of the dredging pipe (8) extends forward out of the pipe seat (6) and is connected to the temporary storage chamber (11) through the power module. When the rotating shaft of the pipe seat (6) is flipped to the horizontal state, the pipe seat (6) will be driven to rotate by the weight of the dredging pipe (8) and drive the elastic constraint component to store energy, so that the tail end of the dredging pipe (8) tilts and sinks into the river bottom. The control module drives the dredging pipe (8) in the tilted and sunk state to rotate around the central rotating shaft (312) of the upper rotating seat (4) through the upper rotating seat (4), so that the movement trajectory of the tail end of the dredging pipe (8) covers the area below the dredging vessel (1).

2. The river silt treatment system according to claim 1, characterized in that, The side-tilting frame (5) includes a base plate (51), a top plate (52), and a tilting drive mechanism (315). The base plate (51) is fixed on the upper rotating seat (4). The top plate (52) is arranged parallel to the base plate (51) above it, and the outer end of the top plate (52) is hinged to the outer end of the base plate (51). The other end of the top plate (52) is connected to the tilting drive mechanism (315). The control module can drive the top plate (52) to tilt outward around the hinge end through the tilting drive mechanism (315). Under the control of the control module, the hinge end of the side-tilting frame (5) is always facing outward.

3. The river silt treatment system according to claim 2, characterized in that, The flipping drive mechanism (315) includes a telescopic cylinder (53) disposed between the top plate (52) and the bottom plate (51). The telescopic cylinder (53) is electrically connected to the control module. The two ends of the telescopic cylinder (53) are respectively hinged to the bottom plate (51) and the top plate (52).

4. The river silt treatment system according to claim 1, characterized in that, The extension mechanism (3) includes a lower rotating seat (31) and a linear module (32). The linear module (32) is fixedly installed on the dredging vessel (1) via the lower rotating seat (31). The upper rotating seat (4) is fixedly installed on the slider seat (323) of the linear module (32). The control module can drive the linear module (32) to rotate horizontally and extend out of the dredging vessel (1) via the lower rotating seat (31). During the extension of the linear module (32), the control module controls the suction pipe (8) to keep its tail end facing backward via the upper rotating seat (4). The control module can drive the suction pipe (8) to move outward away from the dredging vessel (1) via the linear module (32).

5. The river silt treatment system according to claim 4, characterized in that, The bottom of the lower rotating seat (31) is fixedly installed with a lifting frame (33), which is fixedly installed on the dredging vessel (1) and electrically connected to the control module for adjusting the overall height of the dredging unit; a support frame (34) is provided on the dredging vessel (1) behind each extension mechanism (3) for supporting the tail end of the dredging pipe (8) which is in a suspended state when the dredging module is stored.

6. The river silt treatment system according to claim 1, characterized in that, The elastic constraint component includes an elastic component and a constraint component. The constraint component includes a fixed block (71) and a stop block (72). The fixed block (71) is installed on the side-flipping frame (5) on one side of the tube seat (6). The stop block (72) is fixedly installed on the side wall of the tube seat (6). The elastic component includes a tension spring between the tube seat (6) and the side-flipping frame (5). The tension spring is located inside the tube seat (6). The two ends of the tension spring are connected to the tube seat (6) and the side-flipping frame (5) respectively. In its natural state, the tension spring will pull the tube seat (6) to rotate, so that the stop block (72) and the fixed block (71) remain in contact.

7. The river silt treatment system according to claim 1, characterized in that, The upper part of the wall of the temporary storage tank (11) is provided with an overflow port, which is connected to an overflow pipe extending to the outside of the ship; the mud-liquid mixture pumped into the temporary storage tank (11) by the power module can overflow and be discharged through the overflow port.

8. The river silt treatment system according to claim 1, characterized in that, The dredging unit also includes a pretreatment module (2). The front end of the dredging pipe (8) is connected to the inlet of the pretreatment module (2) through the power module, and the outlet of the pretreatment module (2) is connected to the temporary storage chamber (11) for preliminary filtration of the mud mixture.

Images