Electric environment-friendly dredger and working method thereof

Abstract

The invention relates to the technical field of electric environment-friendly dredgers, in particular to an electric environment-friendly dredger and a working method thereof.The electric environment-friendly dredger comprises a dredger body, an operation room, energy supply boxes, a mud storage pool and a mud discharge port, the operation room is arranged on the dredger body, and the energy supply boxes are symmetrically arranged on the dredger body; the dredger comprises a dredger body, a group of energy supply boxes and a sludge storage pool, the sludge storage pool is arranged on the dredger body and located between the energy supply boxes, the sludge discharge port is formed in the dredger body and communicated with the sludge storage pool, each energy supply box is provided with a sludge discharge seat, the sludge discharge seats are located on one side of the sludge storage pool, and the dredger further comprises a dredging system and a blocking structure. The dredging system is arranged on the ship body and connected with the energy supply boxes, and the blocking structure is arranged on a sludge discharging opening of the ship body. By means of a mechanical linkage structure, the position of the filter plate can be adjusted while the power arm assembly is controlled to work, separation of large-size stones and sludge is facilitated, and the situation that the underwater structure is affected due to the fact that the stones are sucked out mistakenly in the dredging process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric environmental protection dredging vessels, and more specifically, to an electric environmental protection dredging vessel and a working method thereof. Background Art

[0002] A dredging ship is a vessel used to dredge and clear silt from a river, improve the water environment of the river, make the river more unobstructed, and meet the navigation and flood control capabilities of the river. Most of the existing dredging ships work by sucking out the silt from the bottom of a target water area, then transporting the silt to another target water area and pouring the silt into the water area to achieve the work of regulating the water area environment. In order to increase the energy consumption of the hull during the silt transportation process, most of the current dredging ships are driven by electricity instead of oil energy.

[0003] The existing electric environmental protection dredging boats have a simple structure and a single working mode. The existing dredging boats need to move back and forth in the same water area to suck the bottom sludge. The main reason is that the sludge suction is insufficient and there are dead corners. In addition, the bottom stones are easily sucked into the boat during the sludge suction process, which can easily cause damage to the bottom structure of the water area. Summary of the invention

[0004] The purpose of the present invention is to provide an electric environmentally friendly dredging boat to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An electric environmentally friendly dredging boat, comprising a hull, an operation room, an energy supply box, a mud storage tank and a mud discharge port, wherein the operation room is arranged on the hull, the energy supply boxes are arranged in a group and are symmetrically arranged on the hull, the mud storage tank is arranged on the hull and is located between a group of the energy supply boxes, the mud discharge port is arranged on the hull and is connected to the mud storage tank, each of the energy supply boxes is provided with a mud discharge seat, and the mud discharge seat is located on one side of the mud storage tank, the dredging boat also comprises a dredging system and a blocking structure, the dredging system is arranged on the hull and is connected to a group of the energy supply boxes, and is used for dredging riverbed mud, and the blocking structure is arranged on the mud discharge port of the hull, and is used for controlling the opening and closing of the mud discharge port;

[0007] The dredging system includes a power arm assembly and a mud crushing and pumping assembly. The number of the power arm assemblies is the same as the number of the energy supply boxes. The power arm assembly is movably arranged on the hull and connected to the function box. The mud crushing and pumping assembly is movably arranged on the lower side of the hull and connected to the power arm assembly. The power arm assembly adjusts the position of the mud crushing and pumping assembly when working. The mud crushing and pumping assembly is connected to the mud discharge seat. When the mud crushing and pumping assembly is working, it crushes the bottom of the riverbed and sucks the silt into the mud discharge seat.

[0008] A further technical solution of the present application is as follows: the crushing and mud extraction assembly includes a mud extraction seat, a crushing motor, a crushing roller and a mud extraction structure; the mud extraction seat is movably arranged on the lower side of the hull and connected to the power arm assembly; the crushing motor is arranged on the mud extraction seat; the crushing roller is movably arranged on the inner side of the mud extraction seat and connected to the output end of the crushing motor; the mud extraction structure is arranged on the mud extraction seat and connected to the mud discharge seat; the mud extraction structure is connected to the crushing roller; and when the crushing roller is working, it controls the mud extraction structure to work synchronously and extract sludge.

[0009] A further technical solution of the present application: the mud pumping structure includes a mud pump, a movable seat, a bidirectional reciprocating screw and a connecting piece, the movable seats are two in number and are symmetrically and movably arranged on the mud pumping seat, a plurality of mud suction nozzles are equidistantly arranged on the movable seat, each of the movable seats is provided with a mud pump, the mud pump is connected to the mud discharge seat, the bidirectional reciprocating screw is movably arranged on the mud pumping seat and slides through the movable seat, reciprocating threads are formed on both ends of the bidirectional reciprocating screw, the bidirectional reciprocating screw and the movable seat are threadedly matched, and the bidirectional reciprocating screw is connected to the crushing roller through a connecting piece.

[0010] A further technical solution of the present application: the connecting member includes a driving disk, a driven disk and a chain, the driving disk is movably arranged on the mud pumping seat and is coaxially connected to the crushing roller, the driven disk is movably arranged on the mud pumping seat and is coaxially connected to the bidirectional reciprocating screw, and the driven disk and the driving disk are connected by a chain.

[0011] The present application has a further technical solution: a flow reducing plate is symmetrically arranged on one side of the mud pumping seat away from the operating chamber, and the flow reducing plate is arranged obliquely relative to the mud pumping seat.

[0012] The present application has a further technical solution: the power arm assembly includes a main arm structure, a sub-arm structure, a driving motor, a mud pumping pipe, a connecting pipe and a filtering structure; the main arm structure is movably arranged on a function box; the driving motor is arranged on the function box and its output end is connected to the main arm structure; the mud pumping pipe is arranged on the main arm structure; the connecting pipe is connected between a mud discharge seat and one end of the mud pumping pipe; the other end of the mud pumping pipe is connected to the mud pump; the sub-arm structure is connected between the function box and the main arm structure to assist the main arm structure in working; the filtering structure is arranged between the sub-arm structure and the mud storage tank to screen out large volumes of silt or stones in the mud storage tank.

[0013] The present application has a further technical solution: the main arm structure includes a main driving arm, a slave driving arm, a threaded rod and a positioning motor, one end of the main driving arm is movably arranged on the energy supply box, the slave driving arm is slidably inserted in the main driving arm, the end of the slave driving arm away from the main driving arm is connected to the mud pumping seat, a connecting block is movably arranged on the main driving arm, the connecting block is connected to the slave driving arm, the threaded rod is movably arranged on the main driving arm and threadedly cooperates with the connecting block, and the positioning motor is arranged on the main driving arm and its output end is connected to the threaded rod.

[0014] The present application has a further technical solution: the auxiliary arm structure comprises a main auxiliary arm, a slave auxiliary arm, a slider and a slide groove, the slide groove is arranged on the main driving arm, the slider is movably arranged in the slide groove and the two are elastically connected, one end of the main auxiliary arm is movably connected to the energy supply box, the slave auxiliary arm is slidably inserted on the main auxiliary arm, one end of the slave auxiliary arm away from the main auxiliary arm is movably connected to the slider, and the filtering structure is connected to the slave auxiliary arm;

[0015] The filtering structure includes a filter plate, a cylinder, an exhaust pipe and an air extraction piston arm. The filter plate is movably arranged in a mud storage tank. There are several cylinders arranged on the hull. The movable end of the cylinder is connected to the filter plate. The air extraction piston arm is movably inserted in a cavity formed in the slave arm. One end of the air extraction piston arm away from the slave arm is connected to the main arm. An air extraction port connected to the cavity is formed on the slave arm, and the air extraction port is connected to the cylinder through the exhaust pipe.

[0016] A further technical solution of the present application is as follows: the blocking structure includes an electric telescopic rod, a sealing bottom plate, a through window and a push arm, the sealing bottom plate is movably arranged in the mud discharge port, the through window is arranged on the sealing bottom plate, the mud discharge port is located on the moving path of the through window, the electric telescopic rod is arranged on the hull, and the movable end of the electric telescopic rod is movably connected to the sealing bottom plate through the push arm.

[0017] A working method of an electric environmental protection dredging boat is applied to the electric environmental protection dredging boat in the above technical solution, and the specific steps of the working method are as follows:

[0018] S100: Using the operation room to control the hull to travel to the first target waters, and controlling the power arm assembly to work through the operation room, so that the power arm assembly can control the crushing and suction mud assembly to be released to the bottom of the water;

[0019] S200: When the position of the crushing and pumping mud assembly reaches the bottom of the water, the operation room controls the energy supply box and the crushing and pumping mud assembly to work, and the crushing and pumping mud assembly can crush the bottom of the water when working;

[0020] S300: While the bottom of the water is being crushed, the crushing and suction mud assembly can be controlled to simultaneously pump the crushed sludge into the mud discharge seat and finally input it into the mud storage tank. When the hull moves to the second target water area, the sealing structure can be controlled to open the mud discharge port and release the sludge into the second target water area.

[0021] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0022] The embodiment of the present invention sets a power arm assembly and a crushing and mud pumping assembly, controls the driving motor to be energized and rotated, thereby controlling the power arm assembly to release the crushing and mud pumping assembly to the bottom of the water, and utilizes a mechanical linkage structure to control the reciprocating movement of a movable seat and a mud suction nozzle to suck mud from different positions while crushing the bottom of the water, thereby improving the dredging effect of the bottom mud. At the same time, the mechanical linkage structure is also utilized to control the operation of the power arm assembly while adjusting the position of the filter plate, thereby facilitating the separation of large-volume stones and mud, and avoiding the accidental suction of stones during dredging to affect the bottom structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of an electric environmentally friendly dredging boat in an embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the hull of an electric environmentally friendly dredging ship in an embodiment of the present invention;

[0025] Figure 3 A half-section view of the hull of an electric environmentally friendly dredging vessel in an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a dredging system in an electric environmentally friendly dredging vessel according to an embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of a power arm assembly in an electric environmentally friendly dredging vessel according to an embodiment of the present invention;

[0028] Figure 6 It is a partial cross-sectional view of the jib structure in the electric environmentally friendly dredging vessel according to an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the mud crushing and pumping assembly in the electric environmentally friendly dredging vessel according to an embodiment of the present invention;

[0030] Figure 8 It is a partial exploded view of the mud crushing and suction assembly in the electric environmentally friendly dredging vessel in the embodiment of the present invention.

[0031] Explanation of the symbols in the schematic diagram:

[0032] 1-hull, 2-operating room, 3-energy box, 4-cylinder, 5-mud storage tank, 6-filter plate, 7-drive motor, 8-mud discharge seat, 9-connecting pipe, 10-sealed bottom plate, 11-electric telescopic rod, 12-push arm, 13-mud discharge port, 14-through window, 15-flow reduction plate, 16-main and auxiliary arms, 17-slave auxiliary arms, 18-exhaust pipe, 19-main drive arm, 20-slave drive arm, 21-mud suction pipe, 22-mud suction seat, 23-slide, 24-slider, 25-threaded rod, 26-air suction piston arm, 27-crushing motor, 28-mud pump, 29-crushing roller, 30-movable seat, 31-bidirectional reciprocating screw, 32-active disk, 33-driven disk, 34-chain, 35-connecting block, 36-air suction port, 37-mud suction nozzle, 38-positioning motor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention is further described below in combination with the embodiments.

[0034] See also Figure 1-Figure 8 In one embodiment of the present application, an electric environmentally friendly dredging boat comprises a hull 1, an operating room 2, an energy supply box 3, a mud storage tank 5 and a mud discharge port 13, wherein the operating room 2 is arranged on the hull 1, the energy supply boxes 3 are in a group and are symmetrically arranged on the hull 1, the mud storage tank 5 is arranged on the hull 1 and is located between a group of the energy supply boxes 3, the mud discharge port 13 is arranged on the hull 1 and is connected to the mud storage tank 5, each of the energy supply boxes 3 is provided with a mud discharge seat 8, and the mud discharge seat 8 is located on one side of the mud storage tank 5, the dredging boat further comprises a dredging system and a blocking structure, the dredging system is arranged on the hull 1 and is connected to a group of the energy supply boxes 3, and is used for dredging riverbed sediment, and the blocking structure is arranged on the mud discharge port 13 of the hull 1, and is used to control the opening and closing of the mud discharge port 13;

[0035] The dredging system includes a power arm assembly and a crushing and mud pumping assembly. The number of the power arm assemblies is the same as the number of the energy supply boxes 3. The power arm assembly is movably arranged on the hull 1 and connected to the function box. The crushing and mud pumping assembly is movably arranged on the lower side of the hull 1 and connected to the power arm assembly. The power arm assembly adjusts the position of the crushing and mud pumping assembly when working. The crushing and mud pumping assembly is connected to the mud discharge seat 8. When the crushing and mud pumping assembly is working, it crushes the bottom of the riverbed and sucks the silt into the mud discharge seat 8.

[0036] In this exemplary embodiment, the crushing and mud extraction assembly includes a mud extraction seat 22, a crushing motor 27, a crushing roller 29 and a mud extraction structure. The mud extraction seat 22 is movably arranged on the lower side of the hull 1 and is connected to the power arm assembly. The crushing motor 27 is arranged on the mud extraction seat 22. The crushing roller 29 is movably arranged on the inner side of the mud extraction seat 22 and is connected to the output end of the crushing motor 27. The mud extraction structure is arranged on the mud extraction seat 22 and is connected to the mud discharge seat 8. The mud extraction structure is connected to the crushing roller 29. When the crushing roller 29 is working, it controls the mud extraction structure to work synchronously and extract sludge.

[0037] In actual application, the operation room 2 is used to control the hull 1 to travel to the first target water area, and the power arm assembly is controlled by the operation room 2 to work, and the power arm assembly can control the crushing and suction mud assembly to be released to the bottom of the water;

[0038] When the position of the crushing and mud pumping assembly reaches the bottom of the water, the operating room 2 controls the energy supply box 3 and the crushing and mud pumping assembly to work. During this process, the operating room 2 controls the crushing motor 27 to be powered on and rotated, driving the crushing roller 29 to rotate. During the rotation of the crushing roller 29, the bottom of the water can be crushed to avoid the obstruction of large stones. At the same time; while the bottom of the water is crushed, the crushing and mud pumping assembly can be controlled to simultaneously pump the crushed sludge into the mud discharge seat 8 and finally input it into the mud storage tank 5. When the hull 1 moves to the second target waters, the sealing structure can be controlled to open the mud discharge port 13 to release the sludge into the second target waters.

[0039] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the mud pumping structure includes a mud pump 28, a movable seat 30, a bidirectional reciprocating screw 31 and a connecting piece. The number of the movable seats 30 is two and they are symmetrically and movably arranged on the mud pumping seat 22. A number of mud suction nozzles 37 are equidistantly arranged on the movable seat 30. Each of the movable seats 30 is provided with a mud pump 28. The mud pump 28 is connected to the mud discharge seat 8. The bidirectional reciprocating screw 31 is movably arranged on the mud pumping seat 22 and slides through the movable seat 30. Both ends of the bidirectional reciprocating screw 31 are formed with reciprocating threads. The bidirectional reciprocating screw 31 and the movable seat 30 are threadedly matched. The bidirectional reciprocating screw 31 is connected to the crushing roller 29 through a connecting piece.

[0040] In a specific case of this embodiment, the connecting member includes a driving disk 32, a driven disk 33 and a chain 34. The driving disk 32 is movably arranged on the mud pumping seat 22 and is coaxially connected to the crushing roller 29. The driven disk 33 is movably arranged on the mud pumping seat 22 and is coaxially connected to the bidirectional reciprocating screw 31. The driven disk 33 and the driving disk 32 are connected by a chain 34.

[0041] In another specific situation of this embodiment, a flow reducing plate 15 is symmetrically provided on one side of the mud pumping seat 22 away from the operating chamber 2 , and the flow reducing plate 15 is arranged obliquely relative to the mud pumping seat 22 .

[0042] In actual application, by setting the flow reduction plate 15, the flow resistance caused by the mud pumping seat 22 when the hull 1 moves can be reduced. When the entire mud pumping seat 22 is released to the bottom of the water through the power arm assembly, the crushing motor 27 is controlled by the operating room 2 to be powered on and rotated, thereby controlling the synchronous rotation of the crushing roller 29. At the same time, the two-way reciprocating screw 31 can be driven to rotate under the cooperation between the active disk 32, the driven disk 33 and the chain 34. Under the cooperation of the threads between the two-way reciprocating screw 31 and the movable seat 30, the movable seat 30 and the mud suction nozzle 37 are driven to reciprocate relative to the mud pumping seat 22. At the same time, the mud pump 28 is controlled to be powered on, so that the sludge at different positions on the moving path of the mud pumping seat 22 can be sucked. Finally, the sludge can be discharged into the mud discharge seat 8 and finally input into the mud storage tank 5.

[0043] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the power arm assembly includes a main arm structure, a sub-arm structure, a driving motor 7, a mud pumping pipe 21, a connecting pipe 9 and a filtering structure. The main arm structure is movably arranged on the function box, the driving motor 7 is arranged on the function box and its output end is connected to the main arm structure, the mud pumping pipe 21 is arranged on the main arm structure, the connecting pipe 9 is connected between the mud discharge seat 8 and one end of the mud pumping pipe 21, and the other end of the mud pumping pipe 21 is connected to the mud pump 28. The sub-arm structure is connected between the function box and the main arm structure to assist the main arm structure in working, and the filtering structure is arranged between the sub-arm structure and the mud storage tank 5 to screen out large volumes of silt or stones in the mud storage tank 5.

[0044] In a specific case of the present embodiment, the main arm structure includes a main driving arm 19, a slave driving arm 20, a threaded rod 25 and a positioning motor 38, one end of the main driving arm 19 is movably arranged on the energy supply box 3, the slave driving arm 20 is slidably inserted in the main driving arm 19, the end of the slave driving arm 20 away from the main driving arm 19 is connected to the mud pumping seat 22, a connecting block 35 is movably arranged on the main driving arm 19, the connecting block 35 is connected to the slave driving arm 20, the threaded rod 25 is movably arranged on the main driving arm 19 and is threadedly matched with the connecting block 35, the positioning motor 38 is arranged on the main driving arm 19 and its output end is connected to the threaded rod 25.

[0045] In another specific case of the present embodiment, the auxiliary arm structure includes a main auxiliary arm 16, a slave auxiliary arm 17, a slider 24 and a slide groove 23, the slide groove 23 is arranged on the main driving arm 19, the slider 24 is movably arranged in the slide groove 23 and the two are elastically connected, one end of the main auxiliary arm 16 is movably connected to the energy supply box 3, the slave auxiliary arm 17 is slidably inserted on the main auxiliary arm 16, one end of the slave auxiliary arm 17 away from the main auxiliary arm 16 is movably connected to the slider 24, and the filtering structure is connected to the slave auxiliary arm 17;

[0046] The filtering structure includes a filter plate 6, a cylinder 4, an exhaust pipe 18 and an exhaust piston arm 26. The filter plate 6 is movably arranged in the mud storage tank 5. The cylinder 4 is in multiple numbers and is arranged on the hull 1. The movable end of the cylinder 4 is connected to the filter plate 6. The exhaust piston arm 26 is movably inserted in a cavity formed in the slave arm 17. One end of the exhaust piston arm 26 away from the slave arm 17 is connected to the main and auxiliary arms 16. The slave arm 17 is formed with an exhaust port 36 connected to the cavity, and the exhaust port 36 is connected to the cylinder 4 through the exhaust pipe 18.

[0047] It should be noted that the blocking structure includes an electric telescopic rod 11, a sealing bottom plate 10, a through window 14 and a push arm 12. The sealing bottom plate 10 is movably arranged in a mud discharge port 13. The through window 14 is arranged on the sealing bottom plate 10. The mud discharge port 13 is located on the moving path of the through window 14. The electric telescopic rod 11 is arranged on the hull 1, and the movable end of the electric telescopic rod 11 is movably connected to the sealing bottom plate 10 through the push arm 12.

[0048] When the mud pumping seat 22 is released, the driving motor 7 on the energy supply box 3 is controlled to be powered on and rotated, thereby driving the main driving arm 19 and the slave driving arm 20 to rotate. At the same time, the positioning motor 38 is controlled to be powered on and rotated, driving the threaded rod 25 to rotate. Under the action of the threaded cooperation between the threaded rod 25 and the connecting block 35, the connecting block 35 and the slave driving arm 20 can be driven to move relative to the main driving arm 19, thereby adjusting the distance between the mud pumping seat 22 and the hull 1 so that the mud pumping seat 22 reaches the bottom of the water. When the position of the main driving arm 19 is adjusted, the resistance between the slide groove 23 and the slider 24 can be used to drive the slave arm 17 and the main and auxiliary arms 16 to rotate along the hinges of the main and auxiliary arms 16. At the same time, the slave arm 17 moves and contracts relative to the main and auxiliary arms 16. The gas piston arm 26 moves relative to the cavity of the auxiliary arm 17, and then draws the air in the cylinder 4 into the cavity along the air suction port 36 and the exhaust pipe 18, thereby driving the cylinder 4 to contract. During the contraction of the cylinder 4, the filter plate 6 can be controlled to move upward, and the filter plate 6 reaches the upper position of the mud storage tank 5. At this time, large-volume stones mixed in the sludge discharged from the mud discharge seat 8 can be left on the filter plate 6, which is convenient for the staff to separate the stones and sludge. After completing the underwater dredging work of the first target water area, the hull 1 moves to the second target water area. By controlling the operation of the electric telescopic rod 11, the sealing bottom plate 10 can be controlled to move relative to the hull 1 under the action of the push arm 12, so that the positions of the window 14 and the mud discharge port 13 coincide, and the sludge can be discharged from the mud storage tank 5 into the second target water area.

[0049] See also Figure 1-Figure 8 In another embodiment of the present application, a working method of an electric environmental protection dredging boat is applied to the electric environmental protection dredging boat described in the above embodiment, and the specific steps of the working method are as follows:

[0050] S100: Using the operation room 2 to control the hull 1 to travel to the first target waters, the operation room 2 controls the power arm assembly to work, and the power arm assembly can control the crushing and suction mud assembly to be released to the bottom of the water;

[0051] S200: When the position of the crushing and pumping mud assembly reaches the bottom of the water, the operation room 2 controls the energy supply box 3 and the crushing and pumping mud assembly to work, and the crushing and pumping mud assembly can crush the bottom of the water when working;

[0052] S300: While the bottom of the water is being crushed, the crushing and mud pumping assembly can be controlled to simultaneously pump the crushed sludge into the mud discharge seat 8 and finally input it into the mud storage tank 5. When the hull 1 moves to the second target water area, the sealing structure can be controlled to open the mud discharge port 13 and discharge the sludge into the second target water area.

[0053] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electric environmentally friendly dredging boat, comprising a hull, an operating room, an energy supply box, a mud storage tank and a mud discharge port, wherein the operating room is arranged on the hull, the energy supply boxes are arranged in a group and are symmetrically arranged on the hull, the mud storage tank is arranged on the hull and is located between a group of energy supply boxes, the mud discharge port is arranged on the hull and is connected to the mud storage tank, each energy supply box is provided with a mud discharge seat, and the mud discharge seat is located on one side of the mud storage tank, characterized in that: The dredging vessel further comprises a dredging system and a blocking structure. The dredging system is arranged on the hull and connected to a group of the energy supply boxes, and is used to dredge the riverbed sediment. The blocking structure is arranged on the mud discharge port of the hull, and is used to control the opening and closing of the mud discharge port. The dredging system includes a power arm assembly and a mud crushing and pumping assembly. The number of the power arm assemblies is the same as the number of the energy supply boxes. The power arm assembly is movably arranged on the hull and connected to the function box. The mud crushing and pumping assembly is movably arranged on the lower side of the hull and connected to the power arm assembly. The power arm assembly adjusts the position of the mud crushing and pumping assembly when working. The mud crushing and pumping assembly is connected to the mud discharge seat. When the mud crushing and pumping assembly is working, it crushes the bottom of the riverbed and sucks the silt into the mud discharge seat.

2. The electric environmental protection dredging boat according to claim 1, characterized in that: The mud pumping assembly includes a mud pumping seat, a crushing motor, a crushing roller and a mud pumping structure. The mud pumping seat is movably arranged on the lower side of the hull and connected to the power arm assembly. The crushing motor is arranged on the mud pumping seat. The crushing roller is movably arranged on the inner side of the mud pumping seat and connected to the output end of the crushing motor. The mud pumping structure is arranged on the mud pumping seat and connected to the mud discharge seat. The mud pumping structure is connected to the crushing roller. When the crushing roller is working, it controls the mud pumping structure to work synchronously and extract sludge.

3. The electric environmental protection dredging boat according to claim 2, characterized in that: The mud pumping structure includes a mud pump, a movable seat, a bidirectional reciprocating screw and a connecting piece. There are two movable seats and they are symmetrically and movably arranged on the mud pumping seat. A number of mud suction nozzles are equidistantly arranged on the movable seat. Each movable seat is provided with a mud pump. The mud pump is connected to the mud discharge seat. The bidirectional reciprocating screw is movably arranged on the mud pumping seat and slides through the movable seat. Reciprocating threads are formed on both ends of the bidirectional reciprocating screw. The bidirectional reciprocating screw and the movable seat are threadedly matched. The bidirectional reciprocating screw is connected to the crushing roller through a connecting piece.

4. The electric environmental protection dredging boat according to claim 3, characterized in that: The connecting member includes a driving disk, a driven disk and a chain. The driving disk is movably arranged on the mud pumping seat and is coaxially connected to the crushing roller. The driven disk is movably arranged on the mud pumping seat and is coaxially connected to the bidirectional reciprocating screw. The driven disk and the driving disk are connected by a chain.

5. The electric environmental protection dredging boat according to claim 2, characterized in that: A flow reducing plate is symmetrically arranged on one side of the mud pumping seat away from the operating room, and the flow reducing plate is arranged obliquely relative to the mud pumping seat.

6. The electric environmental protection dredging boat according to claim 3, characterized in that: The power arm assembly includes a main arm structure, a sub-arm structure, a driving motor, a mud pumping pipe, a connecting pipe and a filtering structure. The main arm structure is movably arranged on a function box. The driving motor is arranged on the function box and its output end is connected to the main arm structure. The mud pumping pipe is arranged on the main arm structure. The connecting pipe is connected between a mud discharge seat and one end of the mud pumping pipe. The other end of the mud pumping pipe is connected to the mud pump. The sub-arm structure is connected between the function box and the main arm structure to assist the main arm structure in working. The filtering structure is arranged between the sub-arm structure and the mud storage tank to screen out large volumes of silt or stones in the mud storage tank.

7. The electric environmental protection dredging ship according to claim 6, characterized in that: The main arm structure includes a main driving arm, a slave driving arm, a threaded rod and a positioning motor. One end of the main driving arm is movably arranged on the energy supply box, the slave driving arm is slidably inserted in the main driving arm, the end of the slave driving arm away from the main driving arm is connected to the mud pumping seat, a connecting block is movably arranged on the main driving arm, the connecting block is connected to the slave driving arm, the threaded rod is movably arranged on the main driving arm and threadedly cooperates with the connecting block, and the positioning motor is arranged on the main driving arm and its output end is connected to the threaded rod.

8. The electric environmental protection dredging ship according to claim 7, characterized in that: The auxiliary arm structure comprises a main auxiliary arm, a slave auxiliary arm, a slider and a slide slot, wherein the slide slot is arranged on the main driving arm, the slider is movably arranged in the slide slot and the two are elastically connected, one end of the main auxiliary arm is movably connected to the energy supply box, the slave auxiliary arm is slidably inserted on the main auxiliary arm, one end of the slave auxiliary arm away from the main auxiliary arm is movably connected to the slider, and the filtering structure is connected to the slave auxiliary arm; The filtering structure includes a filter plate, a cylinder, an exhaust pipe and an air extraction piston arm. The filter plate is movably arranged in a mud storage tank. There are several cylinders arranged on the hull. The movable end of the cylinder is connected to the filter plate. The air extraction piston arm is movably inserted in a cavity formed in the slave arm. One end of the air extraction piston arm away from the slave arm is connected to the main arm. An air extraction port connected to the cavity is formed on the slave arm, and the air extraction port is connected to the cylinder through the exhaust pipe.

9. The electric environmental protection dredging ship according to claim 8, characterized in that: The blocking structure includes an electric telescopic rod, a sealing bottom plate, a through window and a push arm. The sealing bottom plate is movably arranged in the mud discharge port. The through window is arranged on the sealing bottom plate. The mud discharge port is located on the moving path of the through window. The electric telescopic rod is arranged on the hull. The movable end of the electric telescopic rod is movably connected to the sealing bottom plate through the push arm.

10. A working method of an electric environmental protection dredging vessel, applied to the electric environmental protection dredging vessel according to claim 1, characterized in that: The specific steps of the working method are as follows: S100: Using the operation room to control the hull to travel to the first target waters, and controlling the power arm assembly to work through the operation room, so that the power arm assembly can control the crushing and suction mud assembly to be released to the bottom of the water; S200: When the position of the crushing and pumping mud assembly reaches the bottom of the water, the operation room controls the energy supply box and the crushing and pumping mud assembly to work, and the crushing and pumping mud assembly can crush the bottom of the water when working; S300: While the bottom of the water is being crushed, the crushing and suction mud assembly can be controlled to simultaneously pump the crushed sludge into the mud discharge seat and finally input it into the mud storage tank. When the hull moves to the second target water area, the sealing structure can be controlled to open the mud discharge port and release the sludge into the second target water area.

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