Riverway sludge cleaning device and cleaning ship

Abstract

The application provides a river sludge cleaning device and a cleaning ship, which comprises a bucket, the bucket comprises a top plate and a bottom plate, the top plate and the bottom plate are two triangular plates which are folded along a center line, the two sides of the top plate are folded downward, and the two sides of the bottom plate are folded upward; the top plate and the bottom plate are provided with a right opening on the front and back sides; a sewage pipeline is arranged on the upper part of the side wall of the main pipe; a feeding mechanism is arranged in the main pipe and used for feeding; a connecting plate is fixedly arranged on the left side wall of the main pipe; and a threaded hole is arranged on the connecting plate. The application provides a river sludge cleaning device, which can dig in the water through the shuttle-shaped bucket, has high stone breaking efficiency during the movement, can effectively push the stones to the two sides, does not affect the work of the bucket, and can directly discharge the sludge dug to the two sides of the river when digging some small rivers, so that the feeding car can work on the two sides of the river at the same time, and the digging efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of river management machinery technology, and more specifically, to a river silt removal device and a cleaning vessel. Background Technology

[0002] River silt is unconsolidated, soft, fine-grained or extremely fine soil formed through physicochemical and biochemical processes. Due to its high water content, it contains pollutants such as heavy metals and organic matter. In still or slow-flowing rivers or waterways, it easily accumulates, producing foul odors and polluting the surrounding air.

[0003] Existing methods typically involve using excavators to dredge along the shore, while the silt in the middle is dredged by excavators carried by ships. This method is costly and requires a lot of manual intervention.

[0004] Chinese Patent Application No. 202111415528.1 discloses a river dredging device and dredging method, including: a dredging vessel body, a salvage component disposed at the bottom of the dredging vessel body for separating debris from silt in the river silt layer, a suction component disposed on the dredging vessel body and connected to the salvage component for extracting silt separated from the salvage component, a debris treatment component disposed on the dredging vessel body and connected to the salvage component for treating debris separated from the river silt layer, and a silt treatment component disposed on the dredging vessel body and connected to the suction component for treating silt discharged from the suction component.

[0005] The salvage components in the aforementioned prior art are similar to the buckets of excavators. During navigation, when the buckets dredge silt, the large contact area causes them to tip over after prolonged use, potentially rendering them unusable. Therefore, these buckets are unsuitable for use while the vessel is in motion; they are only suitable for dredging in fixed areas, resulting in low dredging efficiency. Furthermore, the aforementioned prior art essentially involves loading silt onto the vessel, leading to low silt dredging efficiency in smaller waterways. To address these issues, we propose a river silt removal device and a dredging vessel. Summary of the Invention

[0006] To overcome the above-mentioned technical problems, the present invention provides a river silt removal device and a cleaning vessel.

[0007] The technical solution of the present invention is as follows:

[0008] A river silt removal device, comprising,

[0009] The excavator bucket includes a top plate and a bottom plate, which are two triangular plates folded along the center line. The top plate is folded downwards on both sides, and the bottom plate is folded upwards on both sides. The top and bottom plates are fixed along their front and rear sides and have an opening on the right side. A rear plate for supporting the entire excavator bucket is also fixedly connected to the right side of the top and bottom plates. The rear plate seals the right-side opening of the top and bottom plates. The top plate has multiple through holes evenly spaced to communicate with the outside.

[0010] The main pipe is fixedly installed at the bottom of the upper end of the bucket and is connected to the inside of the bucket; a first sewage pipe communicating with the inside is provided on the top of the left side wall of the main pipe;

[0011] A sewage pipe is located on the upper part of the side wall of the main pipe and is connected to the interior of the main pipe.

[0012] A feeding mechanism, which is installed inside the main pipe, is used for feeding materials;

[0013] The connecting plate is fixedly installed on the left side wall of the main pipe and located below the first sewage pipe; the connecting plate is provided with an internal threaded hole.

[0014] In the above embodiments, the overall shape of the bucket is spindle-shaped, with pointed sides and a wide middle. Both the top plate and the floor surface are flat. During navigation, this allows the bucket to push rocks in the silt to the sides, facilitating smooth navigation and preventing the bucket from colliding with too many rocks, which could cause the ship to rock. It also effectively prevents the bucket from becoming unusable. Specifically:

[0015] The device is fixed to the stern of the vessel using bolts and threaded holes on the connecting plate, with the top and bottom plates facing the side of the vessel traveling. During navigation, the soft silt enters the bucket through the through-holes. The silt is then moved to the top by the loading mechanism and discharged through the sewage pipe. The sewage pipe can be positioned to face the vessel, accumulating the silt on it; or in smaller waterways, a different sewage pipe can be used, facing both sides of the riverbank, with trucks loading and recycling the silt while the vessel is in motion, further improving work efficiency.

[0016] Preferably, the feeding mechanism includes a drive motor and a first spiral ejector rod. The drive motor is installed on the top of the main pipe, and the first spiral ejector rod is installed inside the main pipe, with the bottom of the first spiral ejector rod penetrating into the inside of the bucket. The upper part of the first spiral ejector rod is connected to the drive motor.

[0017] More preferably, the top of the main tube is provided with an opening, and a detachable main tube top cover is installed on the top of the main tube, with the drive motor installed on the upper part of the main tube top cover.

[0018] Preferably, it further includes a telescopic tube and an elastic element, wherein the telescopic tube is movably sleeved on the bottom of the main tube, and the bottom of the telescopic tube is fixedly connected to the top of the bucket; an elastic element for buffering is connected between the main tube and the telescopic tube.

[0019] More preferably, a limiting ring is fixedly sleeved on the top of the side wall of the telescopic tube; a movable groove that slides with the limiting ring is provided on the lower inner wall of the main tube; the elastic element includes a telescopic rod, a positioning block and a spring; multiple telescopic rods are evenly arranged circumferentially at the bottom of the limiting ring, and the telescopic rods penetrate the bottom of the main tube; a spring is sleeved on the telescopic rod located at the bottom of the main tube, and a positioning block is provided at the bottom end of the telescopic rod.

[0020] Preferably, the bucket is tilted to the lower left of the whole, and the tilt angle of the bucket is 5°-15°.

[0021] Preferably, the bucket further includes an air intake pipe, which is fixed to the rear plate and is connected to the interior of the bucket as a whole.

[0022] Preferably, the sewage pipe is a first sewage pipe, which is located at the top of the left side wall of the main pipe and connected to the main pipe.

[0023] Preferably, the sewage discharge pipe is a second sewage discharge mechanism, which includes a second sewage discharge pipe. Two second sewage discharge pipes are symmetrically arranged at the front and rear ends of the main pipe about the center line of the fold on the top plate, and the included angle between the two second sewage discharge pipes is in the range of 90°-180°. The bottom of the second sewage discharge pipe is also provided with a diagonal support, and the two ends of the diagonal support are respectively fixed to the side wall of the main pipe and the bottom of the second sewage discharge pipe. The bottom of the outer end of the second sewage discharge pipe is also provided with a discharge pipe of the second sewage discharge mechanism.

[0024] More preferably, the second sewage discharge mechanism further includes a second spiral ejector rod and a second sewage discharge mechanism top cover, the second sewage discharge mechanism top cover being fixed to the external opening end of the second sewage discharge pipe; the second spiral ejector rod being located inside the second sewage discharge pipe, and one end of the second spiral ejector rod penetrating into the second sewage discharge mechanism top cover; the other end of the second spiral ejector rod being provided with a driven helical gear, and the upper part of the first spiral ejector rod being fixedly sleeved with a driving helical gear that meshes with the driven helical gear.

[0025] Preferably, the base plate is a corrugated plate, and the corrugated grooves of the base plate are symmetrically arranged on the left and right sides along its folding center line.

[0026] Preferably, multiple sets of the internal threaded holes are vertically arranged on the connecting plate.

[0027] The present invention also provides a river silt removal vessel, including any of the above-mentioned river silt removal devices. The river silt removal device is fixed to the stern of the vessel by bolts and internal threaded holes on a connecting plate, and the top plate is positioned facing the direction of travel of the vessel.

[0028] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0029] This invention provides a river silt removal device that uses a shuttle-shaped hollow bucket for excavation, effectively preventing damage to the bucket's teeth. Furthermore, in smaller rivers, the silt can be discharged to both sides of the river for collection by trucks, improving excavation efficiency. Specifically:

[0030] 1) Compared with the existing excavator buckets, the bucket in this device is spindle-shaped with a pointed end, which makes the bucket more efficient at breaking rocks during travel and avoids the bucket coming into contact with too many rocks in the silt, which would cause the ship to rock and further damage the bucket.

[0031] 2) The telescopic tube and elastic components are designed to cushion the impact of the bucket bottom against hard soil or large rocks, thereby improving the stability of the device and preventing damage.

[0032] 3) The air inlet pipe allows for the periodic ejection of high-pressure gas from the device via an external high-pressure air pump, effectively discharging small stones stuck in the through-holes and preventing blockages.

[0033] 4) The second spiral feed rod, driven helical gear and driving helical gear are configured so that when the material enters the upper part of the main pipe, the driven helical gear and driving helical gear mesh to quickly discharge the material through the second sewage discharge mechanism;

[0034] 5) The bottom plate is a corrugated plate. When the bottom plate is squeezed by rocks on the side during the movement, the corrugated plate can undergo a certain elastic deformation to offset part of the side stress, play a good buffering role, and further protect the bucket.

[0035] 6) The multiple sets of internal threaded holes facilitate the adjustment of the height of the device fixed on the cleaning vessel according to the silt depth, and the height of the device can be adjusted. Attached Figure Description

[0036] Figure 1 This is a perspective view of Embodiment 1 of a river silt removal device of the present invention;

[0037] Figure 2 This is a top view of the left side of the bucket of a river silt removal device according to the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of the main pipe and bucket of a river silt removal device according to the present invention.

[0039] Figure 4 This invention relates to a river silt removal device. Figure 3 Enlarged structural diagram at point A in the middle;

[0040] Figure 5 This is a schematic diagram of the structure of the base plate of a river silt removal device according to an embodiment of the present invention;

[0041] Figure 6 This is a perspective view of Embodiment 2 of the river silt removal device of the present invention;

[0042] Figure 7 This is a top view of the internal structure of the second sewage discharge mechanism and the main pipe of a river silt cleaning device according to the present invention.

[0043] Among them: 1. Supervisor; 11. Activity slot;

[0044] 2. Bucket; 21. Top plate; 211. Through hole; 22. Bottom plate; 23. Rear plate; 24. Air inlet pipe;

[0045] 3. Telescopic tube; 31. Limiting ring;

[0046] 4. Elastic element; 41. Telescopic rod; 42. Positioning block; 43. Spring;

[0047] 5. Main pipe top cover;

[0048] 6. Drive motor;

[0049] 7. First sewage pipe;

[0050] 8. Connecting plate; 81. Internal threaded hole;

[0051] 9. First spiral ejector bar; 91. Drive helical gear;

[0052] 10. Second sewage discharge mechanism; 101. Second sewage discharge pipe; 102. Top cover of the second sewage discharge mechanism; 103. Inclined support; 104. Discharge pipe of the second sewage discharge mechanism; 105. Second spiral ejector rod; 106. Driven helical gear. Implementation

[0053] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0054] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0056] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0057] Please see Figure 1-5 A river silt removal device includes a bucket 2, which comprises a top plate 21 and a bottom plate 22. The top plate 21 and the bottom plate 22 are two triangular plates folded along their center lines. The top plate 21 is folded downwards on both sides, and the bottom plate 22 is folded upwards on both sides. The top plate 21 and the bottom plate 22 are fixed along their front and rear sides and have an opening on their right side. A rear plate 23 for supporting the bucket 2 is also fixedly connected to the right side of the top plate 21 and the bottom plate 22. The rear plate 23 seals the right-side opening of the top plate 21 and the bottom plate 22. Multiple evenly spaced grooves are provided on the top plate 21 for connection with the outside. The system includes: a through hole 211; a main pipe 1, the bottom of which is fixedly installed on the upper end of the bucket 2 and connected to the interior of the bucket 2; a first sewage pipe 7 connected to the interior of the main pipe 1, located on the top of the left side wall of the main pipe 1; a sewage pipe located on the upper part of the side wall of the main pipe 1 and connected to the interior of the main pipe 1; a feeding mechanism installed inside the main pipe 1 for feeding materials; and a connecting plate 8, which is fixedly installed on the left side wall of the main pipe 1 and located below the first sewage pipe 7; and a threaded hole 81 through the connecting plate 8.

[0058] The working principle of the above embodiment is as follows: using bolts to connect the internal threaded holes 81 on the connecting plate 8, the river silt cleaning device is first fixed to the rear of the ship, so that the top plate 21 and the bottom plate 22 face the direction of the ship's travel. At this time, the bucket 2 is completely submerged in the silt. Then the ship travels in the river. During the travel, the top plate 21 and the bottom plate 22 will push the stones in the silt to both sides without affecting the ship's travel. At the same time, the silt enters the bucket 2 through the through hole 221. At this time, the loading mechanism and the sewage pipe are opened. The loading mechanism can be to use a high-pressure pump to extract the silt, or to use a transmission mechanism to move the silt inside the bucket 2 to the top. The sewage pipe can face the ship and pile the silt on the ship, or in some small rivers, the sewage pipe can be directly discharged to the bank, allowing the truck and the ship to travel synchronously to collect the silt.

[0059] Based on the above embodiments, such as Figure 3 As shown, the feeding mechanism includes a drive motor 6 and a first spiral ejector bar 9. The drive motor 6 is installed on the top of the main pipe 1, and the first spiral ejector bar 9 is installed inside the main pipe 1, with the bottom of the first spiral ejector bar 9 penetrating into the inside of the bucket 2; the upper part of the first spiral ejector bar 9 is connected to the drive motor 6.

[0060] In this embodiment, a spiral feeding rod is used for feeding. The first spiral unloading rod 9 is driven by the drive motor 6 to rotate in the feeding direction. When rotating, the sludge inside the bucket 2 can be moved to the top and finally discharged through the sewage pipe.

[0061] Furthermore, the top of the main pipe 1 has an opening, and a removable main pipe cover 5 is installed on the top of the main pipe 1, with the drive motor 6 mounted on the upper part of the main pipe cover 5. This facilitates the disassembly and maintenance of the first spiral ejector rod 9 inside the main pipe 1.

[0062] Based on the above embodiments, such as Figure 4 As shown, the river silt removal device also includes a telescopic pipe 3 and an elastic element 4. The telescopic pipe 3 is movably sleeved on the bottom of the main pipe 1, and the bottom of the telescopic pipe 3 is fixedly connected to the top of the bucket 2. An elastic element 4 for buffering is connected between the main pipe 1 and the telescopic pipe 3.

[0063] A limiting ring 31 is fixedly sleeved on the top of the side wall of the telescopic pipe 3; a movable groove 11 that slides with the limiting ring 31 is provided on the lower inner wall of the main pipe 1; the elastic element 4 includes a telescopic rod 41, a positioning block 42 and a spring 43; multiple telescopic rods 41 are evenly arranged circumferentially at the bottom of the limiting ring 31, and the telescopic rods 41 penetrate the bottom of the main pipe 1; a spring 43 is sleeved on the telescopic rod 41 located at the bottom of the main pipe 1, and a positioning block 42 is provided at the bottom end of the telescopic rod 41.

[0064] When the bottom of the base plate 22 is impacted, the telescopic tube 3 on the upper part of the bucket 2 will extend into the main tube 1. The positioning block 42 below the telescopic tube 3 will compress the spring 43, thereby using elastic force to buffer the bucket 2 and protect it.

[0065] Based on the above embodiment, the bucket 2 is tilted to the lower left of the whole, and the tilt angle of the bucket 2 is 5°-15°.

[0066] The purpose of this embodiment is to further reduce the contact area between the front section of the bucket 2 and the silt in the direction of travel, reduce resistance, and allow the ship to travel more smoothly. At the same time, in some cases, there are stones in the silt targeting the front section of the bucket 2. During the ship's movement, the bucket 2 can easily pry up the stones. By tilting the bucket 2, the bucket 2 can apply a downward force to the stones during its movement, making it easier to pry up the stones.

[0067] Based on the above embodiments, the bucket 2 also includes an air intake pipe 24, which is fixed on the rear plate 23 and is connected to the interior of the bucket 2.

[0068] The purpose of this embodiment is to circulate air through the air inlet pipe 24 using an air pump, and to clean the bucket 2 using high-pressure gas, thereby expelling small stones from the through hole 221 and preventing blockage.

[0069] Based on the above embodiments, the sewage pipe is a first sewage pipe 7, which is located at the top of the left side wall of the main pipe 1 and connected to the main pipe 1.

[0070] In this embodiment, the first sewage pipe 7 is directly facing the ship, allowing the ship to collect the silt. Example

[0071] Please see Figure 6-7 A river silt cleaning device includes a bucket 2, which comprises a top plate 21 and a bottom plate 22. The top plate 21 and the bottom plate 22 are two triangular plates folded along the center line. The top plate 21 is folded downwards on both sides, and the bottom plate 22 is folded upwards on both sides. The top plate 21 and the bottom plate 22 are fixed along their front and rear sides and have an opening on the right side. A rear plate 23 for supporting the bucket 2 is also fixedly connected to the right side of the top plate 21 and the bottom plate 22. The rear plate 23 seals the opening on the right side of the top plate 21 and the bottom plate 22. The top plate 21 has multiple through holes 211 evenly reserved for communication with the outside. A main pipe 1 is fixedly installed at the bottom of the upper end of the bucket 2 and is connected to the inside of the bucket 2. A first sewage pipe 7 is provided at the top of the left side wall of the main pipe 1 and is connected to the inside of the main pipe 1. A sewage discharge pipe is located on the upper part of the side wall of the main pipe 1 and is connected to the inside of the main pipe 1. A feeding mechanism is installed inside the main pipe 1 for feeding. A connecting plate 8 is fixedly installed on the top side wall of the main pipe 1. On the left side wall of the main pipe 1, and below the first drain pipe 7; a threaded hole 81 is provided through the connecting plate 8; the feeding mechanism includes a drive motor 6 and a first spiral ejector rod 9, the drive motor 6 is installed on the top of the main pipe 1, the first spiral ejector rod 9 is installed inside the main pipe 1, and the bottom of the first spiral ejector rod 9 penetrates into the inside of the bucket 2; the upper part of the first spiral ejector rod 9 is connected to the drive motor 6; the drain pipe is a second drain mechanism 10, the second drain mechanism 10 includes a second drain pipe 101, two second drain pipes 101 are symmetrically arranged at the front and rear ends of the main pipe 1 about the center line of the fold on the top plate 21, and the included angle between the two second drain pipes 101 is in the range of 90°-180°; the bottom of the second drain pipe 101 is also provided with a diagonal support 103, the two ends of the diagonal support 103 are respectively fixed to the side wall of the main pipe 1 and the bottom of the second drain pipe 101; the bottom of the outer end of the second drain pipe 101 is also provided with a second drain mechanism discharge pipe 104.

[0072] The difference from Embodiment 1 is that: in this embodiment, there are two second sewage pipes 101, which are inclined respectively. Specifically, in some smaller waterways, the second sewage pipes 101 can directly discharge silt to both sides of the waterway, allowing trucks and ships to travel at the same time. During the silt excavation process, the silt is collected, improving the excavation efficiency.

[0073] Based on the above embodiments, such as Figure 7 As shown, the second sewage discharge mechanism 10 also includes a second spiral ejector rod 105 and a second sewage discharge mechanism top cover 102. The second sewage discharge mechanism top cover 102 is fixed to the external opening end of the second sewage discharge pipe 101. The second spiral ejector rod 105 is located inside the second sewage discharge pipe 101, and one end of the second spiral ejector rod 105 penetrates into the second sewage discharge mechanism top cover 102. The other end of the second spiral ejector rod 105 is provided with a driven helical gear 106, and the upper part of the first spiral ejector rod 9 is fixedly sleeved with a driving helical gear 91 that meshes with the driven helical gear 106.

[0074] When the drive motor 6 drives the first spiral feed rod 9 to feed material, the active helical gear 91 and the two driven helical gears 106 mesh, further driving the second spiral feed rod 105 to push material inside the second sewage pipe 101. By utilizing the synchronization principle, the sludge that enters the upper part of the main pipe 1 can be quickly discharged from the second sewage pipe 101 by the second spiral feed rod 105 through the discharge pipe 104 of the second sewage mechanism, thereby improving the sewage discharge efficiency.

[0075] In some optional embodiments, the bottom plate 22 is a corrugated plate, with the corrugated grooves symmetrically arranged along its fold center line. When the bottom plate 22 is subjected to pressure from rocks on the side during its movement, the corrugated plate can undergo a certain degree of elastic deformation, offsetting part of the side stress and providing a good buffering effect, further protecting the bucket 2.

[0076] In some alternative embodiments, multiple sets of internal threaded holes 81 are vertically arranged on the connecting plate 8. This facilitates adjustment of the height at which the device is fixed to the cleaning vessel according to the silt depth, allowing the device's height to be adjusted to adapt to water depths.

[0077] The present invention also provides a river silt cleaning vessel. In any of the above embodiments, the river silt cleaning device is fixed to the stern of the cleaning vessel by means of bolts and internal threaded holes 81 on the connecting plate 8, and the top plate 21 is set facing the direction of travel of the cleaning vessel.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A river silt removal device, characterized in that, include, The bucket (2) includes a top plate (21) and a bottom plate (22). The top plate (21) and the bottom plate (22) are two triangular plates folded along the center line. The top plate (21) is folded downward on both sides, and the bottom plate (22) is folded upward on both sides. The top plate (21) and the bottom plate (22) are fixed along the front and rear sides and have an overall right-side opening. The right side of the top plate (21) and the bottom plate (22) is also fixedly connected to a rear plate (23) for supporting the bucket (2). The rear plate (23) seals the right-side opening of the top plate (21) and the bottom plate (22). The top plate (21) has multiple through holes (211) evenly reserved to communicate with the outside. The main pipe (1) is fixedly installed at the top of the bucket (2) and is connected to the inside of the bucket (2); a first sewage pipe (7) is provided on the top of the left side wall of the main pipe (1) and is connected to its inside. The sewage pipe is located on the upper part of the side wall of the main pipe (1) and is connected to the interior of the main pipe (1); A feeding mechanism is installed inside the main pipe (1) for feeding materials; The connecting plate (8) is fixedly installed on the left side wall of the main pipe (1) and located below the first sewage pipe (7); the connecting plate (8) is provided with an internal threaded hole (81). The telescopic tube (3) and the elastic element (4) are connected together. The telescopic tube (3) is movably sleeved at the bottom of the main tube (1), and the bottom of the telescopic tube (3) is fixedly connected to the top of the bucket (2). An elastic element (4) for buffering is connected between the main tube (1) and the telescopic tube (3). A limit ring (31) is fixedly sleeved at the top of the side wall of the telescopic tube (3). A movable groove (11) that slides with the limit ring (31) is provided at the bottom of the inner wall of the main tube (1). The elastic element (4) includes a telescopic rod (41), a positioning block (42) and a spring (43). Multiple telescopic rods (41) are evenly arranged circumferentially at the bottom of the limit ring (31). The telescopic rods (41) penetrate the bottom of the main tube (1). A spring (43) is sleeved on the telescopic rod (41) at the bottom of the main tube (1), and a positioning block (42) is provided at the bottom end of the telescopic rod (41). The feeding mechanism includes a drive motor (6) and a first spiral ejector rod (9). The drive motor (6) is installed on the top of the main pipe (1), and the first spiral ejector rod (9) is installed inside the main pipe (1). The bottom of the first spiral ejector rod (9) penetrates into the inside of the bucket (2). The upper part of the first spiral ejector rod (9) is connected to the drive motor (6). The sewage pipe is the first sewage pipe (7), which is located at the top of the left side wall of the main pipe (1) and connected to the main pipe (1); Alternatively, the sewage pipe may be a second sewage discharge mechanism (10), which includes a second sewage pipe (101). Two second sewage pipes (101) are symmetrically arranged at the front and rear ends of the main pipe (1) about the center line of the fold on the top plate (21). The included angle between the two second sewage pipes (101) is 90°-180°. A diagonal support (103) is also provided at the bottom of the second sewage pipe (101). The two ends of the diagonal support (103) are respectively fixed to the side wall of the main pipe (1) and the bottom of the second sewage pipe (101). A discharge pipe (104) of the second sewage discharge mechanism is also provided at the bottom of the outer end of the second sewage pipe (101). The second sewage discharge mechanism (10) further includes a second spiral ejector rod (105) and a second sewage discharge mechanism top cover (102). The second sewage discharge mechanism top cover (102) is fixed to the external opening end of the second sewage discharge pipe (101). The second spiral ejector rod (105) is located inside the second sewage discharge pipe (101), and one end of the second spiral ejector rod (105) penetrates into the second sewage discharge mechanism top cover (102). The other end of the second spiral ejector rod (105) is provided with a driven helical gear (106). The upper part of the first spiral ejector rod (9) is fixedly sleeved with an active helical gear (91) that meshes with the driven helical gear (106). The base plate (22) is a corrugated plate, and the corrugated grooves of the base plate (22) are symmetrically arranged on the left and right sides along its folding center line.

2. The river silt removal device according to claim 1, characterized in that: The top opening of the main tube (1) is provided, and a detachable main tube top cover (5) is installed on the top of the main tube (1), and the drive motor (6) is installed on the upper part of the main tube top cover (5).

3. The river silt removal device according to claim 1, characterized in that: The bucket (2) is tilted to the lower left of the whole, and the tilt angle of the bucket (2) is 5°-15°.

4. The river silt removal device according to claim 1, characterized in that: The bucket (2) also includes an air inlet pipe (24), which is fixed on the rear plate (23) and is connected to the interior of the bucket (2).

5. The river silt removal device according to claim 1, characterized in that: Multiple sets of internal threaded holes (81) are vertically arranged on the connecting plate (8).

6. A river silt removal vessel, comprising the river silt removal device according to any one of claims 1-5, characterized in that, The river silt removal device is fixed to the stern of the cleaning vessel by means of bolts and internal threaded holes (81) on the connecting plate (8), and the top plate (21) is set facing the direction of travel of the cleaning vessel.

7. The river silt removal vessel according to claim 6, characterized in that, The application method of the river silt removal device on the cleaning vessel is as follows: First, fix the river silt removal device to the rear of the cleaning vessel, so that the top plate (21) and bottom plate (22) face the direction of the vessel's travel. At this time, the bucket (2) is completely submerged in the silt. Then, let the cleaning vessel travel in the river. During the travel, the top plate (21) and bottom plate (22) push the stones in the silt to both sides. At the same time, the silt enters the bucket through the through hole (211). Then, turn on the drive motor (6) to drive the first spiral feed rod (9) to rotate in the feeding direction. When rotating, the silt inside the bucket (2) is drawn to the top. The sludge is discharged from either the first sewage pipe (7) or the second sewage pipe (101). The discharge of sludge from the second sewage pipe (101) is suitable for small rivers. The specific method is as follows: when the drive motor (6) drives the first spiral feed rod (9) to feed the material, the active helical gear (91) and the two driven helical gears (106) mesh, further driving the second spiral feed rod (105) to push the material inside the second sewage pipe (101), so that the sludge entering the upper part of the main pipe (1) is discharged from the second sewage pipe (101) by the second spiral feed rod (105) through the discharge pipe (104) of the second sewage mechanism.

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