A mobile aeration silt-reducing vessel for port and waterway silt reduction

Abstract

This invention discloses a mobile aeration dredging vessel for port and waterway dredging, belonging to the field of port and waterway dredging technology. The mobile aeration dredging vessel includes a tugboat and: a leveling body, mounted on one side of the tugboat for raking up silt from the bottom; and a winch mechanism mounted on the tugboat for hoisting the leveling body, comprising a first winch assembly and a second winch assembly. This invention utilizes the ability of the leveling body to generate microbubbles, effectively activating the silt deposited to the riverbed within 24 hours. The returned silt is mixed with water to form a slurry, which is then transported to the surface via the bubbles. This achieves efficient utilization of the tidal current's sand-carrying power, effectively addressing the problem of large siltation volumes. Furthermore, the tugboat's operating costs are significantly lower than those of a trailing suction hopper dredger. The tugboat is also more flexible than a trailing suction hopper dredger, solving the problems of low siltation efficiency and high costs, greatly improving economic benefits and construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of port and waterway dredging technology, and in particular to a mobile aeration dredging vessel for reducing siltation in port and waterways. Background Technology

[0002] A waterway is a navigation channel in rivers, lakes, seas, or other bodies of water that is designated or constructed for ship navigation. With the long-term operation of ports, the channels and harbor basins suffer from severe siltation due to coastal sand transport and tidal changes. This gradually reduces the depth of the waterways, decreasing their capacity and preventing normal ship passage. Furthermore, without timely dredging, ships frequently suffer damage or accidents due to insufficient water depth or underwater obstacles. Therefore, regular dredging is a crucial maintenance project to ensure the smooth flow and safety of waterways.

[0003] Existing technology allows for the removal of silt from waterways using trailing suction hopper dredgers powered by tidal currents. However, the number of trailing suction hopper dredgers available for dredging is limited, which can lead to resource shortages. Furthermore, the working depth of these dredgers is limited; as the working depth increases, the effectiveness of using tidal currents for silt transport diminishes, resulting in increased siltation. Additionally, continuing dredging after the original soil has been excavated presents challenges of low efficiency and high cost. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a mobile aeration desilting vessel for port and waterway silt reduction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mobile aeration desilting vessel for port and waterway silt reduction includes a tugboat and also includes:

[0007] The rake body is located on one side of the tow wheel and is used to rake up silt from the bottom of the water.

[0008] A winch mechanism, which is mounted on a tugboat and used for hoisting and lowering the rake body, the winch mechanism including a first winch assembly and a second winch assembly;

[0009] An air compressor, fixed to a tow wheel, has an air outlet connected to an air guide pipe, the end of the air guide pipe furthest from the air compressor being connected to the body of a leveling device; and

[0010] A waste collection assembly is disposed on the body of the rake and is used to collect waste attached to the body of the rake.

[0011] Preferably, the first winch assembly includes a first support fixed on the tugboat, a first rotating rod rotatably connected to the first support, a first drum disposed on the first rotating rod, a first pull rope wound around the first drum, and a first motor fixed on the first support with its output end connected to the first rotating rod. The end of the first pull rope away from the first drum is connected to the rake body.

[0012] Preferably, a support frame is fixed on the tug, and a fixed pulley is provided on the support frame that is slidably disposed with the first pull rope. The first pull rope includes a main rope wound and connected to a first drum and two branch ropes disposed at the end of the main rope away from the first drum. The two branch ropes are symmetrically disposed on both sides of the rake body.

[0013] Preferably, the second winch assembly includes second supports symmetrically arranged on both sides of the tractor, a second motor fixed on each second support, the output end of the second motor being connected to a second rotating rod rotatably arranged on the second support, a second drum being arranged on the second rotating rod, a second pull rope being wound and connected on the second drum, and the end of the second pull rope away from the second drum being connected to the front side of the rake body.

[0014] Preferably, a rotating rod is rotatably connected to the first support, the air guide pipe is wound around the rotating rod, a driven gear is provided on the rotating rod, and a driving gear that meshes with the driven gear is provided on the first rotating rod.

[0015] Preferably, the rake body includes an outer frame connected to the first and second pull ropes and a support tube disposed inside the outer frame. Both the outer frame and the support tube are hollow tubes connected to the air guide tube. The outer frame and the support tube are provided with a plurality of air holes. The bottom of the outer frame is provided with a plurality of rake teeth at equal intervals, and the rake teeth are provided with barbs.

[0016] Preferably, the waste collection assembly includes a collection filter screen fixed on the outer frame, a feed inlet at the bottom of the collection filter screen, a rotating shaft rotatably mounted inside the collection filter screen, a waterproof motor connected to the rotating shaft fixed on the outside of the collection filter screen, a material-pulling plate fixed on the rotating shaft, and an movable hole cooperating with the material-pulling plate on the side of the collection filter screen away from the feed inlet.

[0017] Preferably, the material feeding plate has a movable groove that cooperates with the rake teeth, the rake teeth are movably disposed in the movable groove, the material feeding plate is configured as a telescopic plate, the telescopic end of the material feeding plate is provided with a counterweight block, and the side of the material feeding plate is provided with a cutting surface.

[0018] Preferably, a plurality of fixed shafts are equidistantly arranged inside the feed inlet, each fixed shaft being located in the middle of two rake teeth, and a first baffle and a second baffle are respectively rotatably arranged on both sides of each fixed shaft to move against the collection filter screen.

[0019] Preferably, the outer frame, support tube, and rake teeth are all made of high-strength steel, the outer diameter of the outer frame and the support tube are 220mm and 76mm respectively, and the thickness of the outer frame and the support tube are 12mm and 6mm respectively.

[0020] Compared with the prior art, the present invention provides a mobile aeration desilting vessel for port and waterway silt reduction, which has the following beneficial effects:

[0021] 1. This mobile aeration silt-reducing vessel for port and waterway silt reduction generates high-pressure gas through an air compressor and guides the gas into a leveling device through an air pipe. This causes the leveling device to generate microbubbles, which fully utilize the ability of the bubbles to move silt. It effectively mobilizes the silt that has fallen to the riverbed within 24 hours, mixes the silt with water to form a slurry, and then sends it to the water surface through the bubbles. This achieves efficient utilization of the tidal current's sand transport power, effectively addressing the problem of large siltation volumes. Furthermore, the operating cost of tugboats is far lower than that of trailing suction hopper dredgers. Tugboats are more flexible than trailing suction hopper dredgers, solving the problems of low silt reduction efficiency and high costs, and greatly improving economic benefits and construction efficiency.

[0022] 2. This mobile aeration silt-reducing vessel for port and waterway silt reduction has a waste collection component installed on the upper side of the rake leveler. This component can clean and collect underwater waste hooked by the rake teeth during operation, preventing excessive debris from adhering to the rake leveler and affecting the airflow from the rake leveler's ability to push the silt, thus ensuring the silt-reducing effect of the rake leveler. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 The main view;

[0025] Figure 3 This is a schematic diagram of the structure of the first winch assembly of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the body of the rake leveler of the present invention;

[0027] Figure 5 For the present invention Figure 4 A partially enlarged structural diagram of section A in the middle;

[0028] Figure 6 This is a schematic cross-sectional view of the collection filter screen of the present invention. Figure 1 ;

[0029] Figure 7 This is a schematic cross-sectional view of the collection filter screen of the present invention. Figure 2 .

[0030] In the diagram: 1. Drag wheel; 2. Rake body; 201. Outer frame; 202. Support pipe; 203. Air hole; 204. Rake teeth; 2041. Hook; 3. Air compressor; 4. Air guide pipe; 5. First support; 501. First rotating rod; 5011. Drive gear; 502. First drum; 503. First pull rope; 5031. Main rope; 5032. Branch rope; 504. First motor; 6. Support frame; 601. Fixed pulley; 7. 701. Second support; 702. Second motor; 703. Second rotating rod; 704. Second drum; 705. Second pull rope; 8. Rotating rod; 806. Driven gear; 9. Collection filter screen; 907. Rotating shaft; 908. Material feeding plate; 909. Movable groove; 909. Counterweight; 9000. Movable hole; 10. Feed inlet; 1001. Fixed shaft; 1002. First baffle; 1003. Second baffle; 11. Waterproof motor. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A mobile aeration desilting vessel for port channel siltation, comprising a tugboat 1, and further comprising:

[0035] The rake body 2 is located on one side of the tow wheel 1 and is used to rake up the silt at the bottom of the water.

[0036] A winch mechanism is mounted on the tug 1 and is used to lift the rake body 2. The winch mechanism includes a first winch assembly and a second winch assembly.

[0037] Air compressor 3 is fixed on the towing wheel 1. An air guide pipe 4 is connected to the air outlet of air compressor 3. The end of the air guide pipe 4 furthest from air compressor 3 is connected to the rake body 2.

[0038] Waste collection component, which is installed on the rake body 2, is used to collect waste attached to the rake body 2.

[0039] Specifically, numerous tugboats 1 exist in the port channel. A leveling device can be installed on each tugboat 1. The leveling device body 2 is lowered via a winch mechanism. The first and second winch assemblies ensure stable force distribution on the leveling device body 2, allowing it to be steadily lowered to the bottom of the water. An air compressor 3 draws in air and converts it into high-pressure gas, which is then guided to the leveling device body 2 through an air pipe 4. This generates microbubbles in the leveling device, fully utilizing the ability of these bubbles to move silt and effectively activating the silt that has settled to the riverbed within 24 hours. The returned silt is mixed with water to form a slurry, which is then transported to the surface via the bubbles. This achieves efficient utilization of the tidal current's sand-carrying power and effectively handles large volumes of returned silt. The problem is that the tugboat 1 removes volatile substances and odors from the water through aeration, reducing pollution caused by silt removal. Moreover, the operating cost of the tugboat 1 is much lower than that of the trailing suction hopper. The tugboat 1 is more flexible than the trailing suction hopper and can solve the problems of low silt removal efficiency and high cost, greatly improving economic benefits and construction efficiency. In addition, by setting a waste collection component on the upper side of the tugboat, the underwater waste hooked by the tugboat during operation, such as plastic bags, woven net bags, and discarded clothing, can be cleaned and collected, avoiding the accumulation of too much debris on the tugboat, which would affect the effect of the airflow sprayed by the tugboat on pushing the silt, thus ensuring the silt removal effect of the tugboat.

[0040] Reference Figure 1 , Figure 2 and Figure 3As a preferred technical solution of the present invention, the first winch assembly includes a first support 5 fixed on the tractor 1, a first rotating rod 501 rotatably connected to the first support 5, a first drum 502 disposed on the first rotating rod 501, a first pull rope 503 wound and connected to the first drum 502, and a first motor 504 fixed on the first support 5 and whose output end is connected to the first rotating rod 501. The end of the first pull rope 503 away from the first drum 502 is connected to the rake body 2.

[0041] Furthermore, a support frame 6 is fixed on the tow wheel 1, and a fixed pulley 601 is provided on the support frame 6 to slide with the first pull rope 503. The first pull rope 503 includes a main rope 5031 wound and connected to the first drum 502 and two branch ropes 5032 provided at one end of the main rope 5031 away from the first drum 502. The two branch ropes 5032 are symmetrically arranged on both sides of the rake body 2.

[0042] Furthermore, the second winch assembly includes second supports 7 symmetrically arranged on both sides of the tractor 1. A second motor 701 is fixed on each second support 7. The output end of the second motor 701 is connected to a second rotating rod 702 rotatably arranged on the second support 7. A second drum 703 is arranged on the second rotating rod 702. A second pull rope 704 is wound and connected to the second drum 703. The end of the second pull rope 704 away from the second drum 703 is connected to the front side of the rake body 2.

[0043] Specifically, when the first winch assembly is working, it controls the operation of the first motor 504, causing the output end of the first motor 504 to drive the first rotating rod 501 to rotate on the first support 5. The first rotating rod 501 drives the first drum 502 to release the first pull rope 503. The fixed pulley 601 can guide the direction of the first pull rope 503. The end of the first pull rope 503 is connected to the two sides of the middle part of the rake body 2 through two branch ropes 5032. The second winch assembly is provided with two sets. When each set of the second winch assembly is working, the output end of the second motor 701 drives the second rotating rod 702 to rotate. The second rotating rod 702 drives the second drum 703 to release the second pull rope 704. The second pull ropes 704 on both sides of the tug wheel 1 are connected to the two sides of the front end of the rake body 2, so that the force on all parts of the rake body 2 is stable when it is hoisted down, so that the rake body 2 is stably lowered to the bottom of the water body.

[0044] Reference Figure 1 and Figure 3 As a preferred technical solution of the present invention, a rotating rod 8 is rotatably connected to the first support 5, and an air guide pipe 4 is wound around the rotating rod 8. A driven gear 801 is provided on the rotating rod 8, and a driving gear 5011 that meshes with the driven gear 801 is provided on the first rotating rod 501.

[0045] Specifically, when the first rotating rod 501 rotates, the outer drive gear 5011 meshes with the driven gear 801 on the rotating rod 8, and the rotating rod 8 releases the air guide pipe 4, causing the air guide pipe 4 to move with the lowered rake body 2.

[0046] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As a preferred technical solution of the present invention, the rake body 2 includes an outer frame 201 connected to the first pull rope 503 and the second pull rope 704, and a support tube 202 disposed inside the outer frame 201. Both the outer frame 201 and the support tube 202 are hollow tubes connected to the air guide tube 4. A plurality of air holes 203 are opened on the outer frame 201 and the support tube 202. A plurality of rake teeth 204 are equidistantly arranged at the bottom of the outer frame 201, and barbs 2041 are provided on the rake teeth 204.

[0047] Furthermore, the outer frame 201, support pipe 202 and rake teeth 204 are all made of high-strength steel. The outer diameters of the outer frame 201 and support pipe 202 are 220mm and 76mm, respectively, and the thicknesses of the outer frame 201 and support pipe 202 are 12mm and 6mm, respectively.

[0048] Specifically, the rake body 2 is made of high-strength steel. Considering the lifting capacity of the winch of the tugboat 1, the outer diameters of the outer frame 201 and the support pipe 202 of the rake body 2 are determined to be 220mm and 76mm, respectively, and the thicknesses are 12mm and 6mm, respectively. Finite element calculations show that these pipe diameters and thicknesses meet the strength requirements of the operating conditions. Micro-pores 203 are formed on the rake body 2. The diameter of the pores 203 directly determines the size of the generated bubbles; excessively large pores 203 will lead to... Large-diameter silt enters the rake and then clogs the pipes along the air tube. Due to the power limitation of the air compressor 3, if the air hole 203 is too large, the number of air bubbles will be insufficient, affecting the lifting effect. If the air hole 203 is too small, the small air bubbles will not be able to lift the sludge effectively. Therefore, the size of the air hole 203 is 0.75mm to 1mm. The rake teeth 204 set on the lower side of the outer frame 201 can directly contact the silt on the riverbed and effectively scrape the silt. The barbs 2041 set on the rake teeth 204 can effectively hook the waste.

[0049] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7As a preferred technical solution of the present invention, the waste collection assembly includes a collection filter 9 fixed on the outer frame 201, a feed inlet 10 is provided at the bottom of the collection filter 9, a rotating shaft 901 is rotatably provided inside the collection filter 9, a waterproof motor 11 connected to the rotating shaft 901 is fixed on the outside of the collection filter 9, a material-pulling plate 902 is fixed on the rotating shaft 901, and an active hole 903 that cooperates with the material-pulling plate 902 is provided on the side of the collection filter 9 away from the feed inlet 10.

[0050] Furthermore, the material feeding plate 902 is provided with a movable groove 9021 that cooperates with the rake teeth 204. The rake teeth 204 are movably disposed in the movable groove 9021. The material feeding plate 902 is configured as a telescopic plate. A counterweight block 9022 is provided at the telescopic end of the material feeding plate 902, and a cutting surface is provided on the side of the material feeding plate 902.

[0051] Furthermore, several fixed shafts 1001 are equidistantly arranged inside the feed inlet 10. Each fixed shaft 1001 is located in the middle of two rake teeth 204. Each fixed shaft 1001 has a first baffle 1002 and a second baffle 1003 rotatably arranged on both sides to move against the collection filter screen 9.

[0052] Specifically, when the waste collection component is working, the waterproof motor 11 is controlled to run. The output end of the waterproof motor 11 drives the rotating shaft 901 to rotate within the collection filter screen 9. When the rotating shaft 901 rotates, it drives the material-pulling plate 902 to rotate. When the material-pulling plate 902 rotates to the underside of the rotating shaft 901, it can further disturb the silt at the bottom of the river, effectively mixing the silt with the water to form a slurry. As the rotating shaft 901 rotates, the material-pulling plate 902, during its rotation, moves the waste (such as plastic bags, woven mesh bags, discarded clothing, etc.) hooked by the rake teeth 204, causing the waste to detach from the rake teeth 204 and be lifted up by the material-pulling plate 902, thus preventing a large amount of debris from adhering to the rake. This affects the pushing effect of the airflow ejected by the rake on the sludge. The material-pushing plate 902 causes the waste to exert a force on the first baffle 1002 and the second baffle 1003 at the feed inlet 10, causing the first baffle 1002 and the second baffle 1003 to rotate around the fixed shaft 1001. The first baffle 1002 and the second baffle 1003 rotate relative to each other, opening the feed inlet 10. The material-pushing plate 902 carries the waste into the collection filter 9. As the material-pushing plate 902 moves away from the feed inlet 10 and no longer abuts against the first baffle 1002 and the second baffle 1003, the first baffle 1002 and the second baffle 1003 return to their original position and move downward under their own gravity. The feed inlet 10 is sealed to prevent waste entering the collection filter 9 from being moved out again. As the material-pulling plate 902 continues to rotate, it gradually moves to the upper side of the rotating shaft 901. The telescopic end of the material-pulling plate 902 retracts downward under the gravity of the counterweight 9022, reducing the length of the material-pulling plate 902. This reduces the resistance from waste as the material-pulling plate 902 moves out of the movable hole 903. When the material-pulling plate 902 rotates to the movable hole 903, the waste is blocked by the collection filter 9 and cannot move down. The cutting surface on the side of the material-pulling plate 902 cuts the waste located at the movable hole 903, preventing the waste from damaging the material-pulling plate 902. As rotation continues, resistance is generated. Subsequently, the material-pulling plate 902 moves out of the collection filter screen 9 along with the rotating shaft 901, passing over the movable hole 903. As the material-pulling plate 902 tilts downward, the telescopic end of the material-pulling plate 902 moves out again under the action of the counterweight 9022, extending the length of the material-pulling plate 902. This allows the material-pulling plate 902 to continue to disturb the silt on the riverbed as it rotates with the rotating shaft 901. It should be noted that when the cutting surface of the material-pulling plate 902 lifts up the waste, the relative force between the waste and the material-pulling plate 902 is small, so the material-pulling plate 902 does not cut the waste when lifting it up, allowing the waste to smoothly enter the collection filter screen 9 along with the material-pulling plate 902.

[0053] The above description is only a preferred 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 of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mobile aeration desilting vessel for port and waterway silt reduction, comprising a tugboat (1), characterized in that, Also includes: The rake body (2) is located on one side of the tow wheel (1) and is used to rake up the silt at the bottom of the water. A winch mechanism is mounted on a tugboat (1) and is used to lift the rake body (2). The winch mechanism includes a first winch assembly and a second winch assembly. An air compressor (3) is fixed on a tow wheel (1). An air outlet end of the air compressor (3) is connected to an air guide pipe (4). The end of the air guide pipe (4) furthest from the air compressor (3) is connected to the rake body (2). Waste collection assembly, which is disposed on the rake body (2) for collecting waste attached to the rake body (2); The rake body (2) includes an outer frame (201) connected to the first pull rope (503) and the second pull rope (704) and a support tube (202) disposed inside the outer frame (201). The outer frame (201) and the support tube (202) are both hollow tubes connected to the air guide tube (4). The outer frame (201) and the support tube (202) are provided with a number of air holes (203). The bottom of the outer frame (201) is provided with a number of rake teeth (204) at equal intervals. The rake teeth (204) are provided with barbs (2041). The waste collection assembly includes a collection filter (9) fixed on the outer frame (201), a feed inlet (10) is provided at the bottom of the collection filter (9), a rotating shaft (901) is rotatably provided inside the collection filter (9), a waterproof motor (11) connected to the rotating shaft (901) is fixed on the outside of the collection filter (9), a material-pulling plate (902) is fixed on the rotating shaft (901), and an active hole (903) that cooperates with the material-pulling plate (902) is provided on the side of the collection filter (9) away from the feed inlet (10); The material feeding plate (902) is provided with a movable groove (9021) that cooperates with the rake teeth (204). The rake teeth (204) are movably disposed in the movable groove (9021). The material feeding plate (902) is configured as a telescopic plate. The telescopic end of the material feeding plate (902) is provided with a counterweight (9022), and the side of the material feeding plate (902) is provided with a cutting surface. The feed inlet (10) is provided with several fixed shafts (1001) at equal intervals. Each fixed shaft (1001) is located in the middle of two rake teeth (204). Each fixed shaft (1001) is provided with a first baffle (1002) and a second baffle (1003) on both sides, which move against the collection filter (9).

2. The mobile aeration desilting vessel for port and waterway silt reduction according to claim 1, characterized in that, The first winch assembly includes a first support (5) fixed on the tug (1), a first rotating rod (501) rotatably connected to the first support (5), a first drum (502) disposed on the first rotating rod (501), a first pull rope (503) wound around the first drum (502), and a first motor (504) fixed on the first support (5) and whose output end is connected to the first rotating rod (501). The end of the first pull rope (503) away from the first drum (502) is connected to the rake body (2).

3. A mobile aeration desilting vessel for port and waterway silt reduction according to claim 2, characterized in that, A support frame (6) is fixed on the tug (1). A fixed pulley (601) is provided on the support frame (6) and is slidably disposed with the first pull rope (503). The first pull rope (503) includes a main rope (5031) wound and connected to the first drum (502) and two branch ropes (5032) disposed at the end of the main rope (5031) away from the first drum (502). The two branch ropes (5032) are symmetrically disposed on both sides of the rake body (2).

4. A mobile aeration desilting vessel for port and waterway silt reduction according to claim 2, characterized in that, The second winch assembly includes second supports (7) symmetrically arranged on both sides of the tractor (1). A second motor (701) is fixed on each second support (7). The output end of the second motor (701) is connected to a second rotating rod (702) rotatably arranged on the second support (7). A second drum (703) is arranged on the second rotating rod (702). A second pull rope (704) is wound and connected on the second drum (703). The end of the second pull rope (704) away from the second drum (703) is connected to the front side of the rake body (2).

5. A mobile aeration desilting vessel for port and waterway silt reduction according to claim 4, characterized in that, A rotating rod (8) is rotatably connected to the first support (5), and the air guide pipe (4) is wound around the rotating rod (8). A driven gear (801) is provided on the rotating rod (8), and a driving gear (5011) that meshes with the driven gear (801) is provided on the first rotating rod (501).

6. A mobile aeration desilting vessel for port and waterway silt reduction according to claim 1, characterized in that, The outer frame (201), support tube (202) and rake teeth (204) are all made of high-strength steel. The outer diameters of the outer frame (201) and support tube (202) are 220mm and 76mm, respectively, and the thicknesses of the outer frame (201) and support tube (202) are 12mm and 6mm, respectively.

Images