A vertical dredging passage unblocking system

By introducing high-pressure air and water into the dredging channel, and using a sludge pump to remove the sludge, the problem of low dredging efficiency in vertical dredging channels was solved, achieving a highly efficient sludge removal effect.

CN117721868BActive Publication Date: 2026-08-25YANGTZE RIVER YICHANG WATERWAY ENG BUREAU
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Patent Information

Application Number
CN202410088017.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-01-22
Publication Date
2026-08-25
Estimated Expiration
2044-01-22

AI Technical Summary

Technical Problem

Existing technologies have low efficiency in clearing vertical sludge channels, and it is difficult to clean up sludge effectively once it becomes blocked.

Method used

The method combines high-pressure air and high-pressure water. High-pressure air and high-pressure water are introduced into the dredging channel through air inlet pipes and water inlet pipes, respectively. The sludge pump is used to extract the mixture of sludge and high-pressure air, and the nozzle is used to impact and clear the sludge blockage.

Benefits of technology

It improved the dredging efficiency of the dredging channels, ensured the rapid discharge of silt, avoided equipment blockage, and improved the efficiency and effectiveness of dredging operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a vertical dredging channel dredging system, which comprises a suction casing, a suction head connected to one end of the suction casing and a sludge pump connected to the other end of the suction casing, an air increasing pipe, one end of which is located in the suction casing and the other end of which is connected to an air compressor and penetrates through the suction casing, and a water increasing pipe, one end of which is fixedly connected to a spraying ring surrounding the outside of the suction casing and the other end of which is connected to a high-pressure water pump, a plurality of nozzles being further installed on the spraying ring, the high-pressure water pump supplying high-pressure water into the water increasing pipe and then into the spraying ring, and the high-pressure water being sprayed out through the nozzles, the suction head being located in a dredging channel, and the sludge pump and the air compressor being located outside the dredging channel. The application solves the problem of low dredging efficiency of the vertical dredging channel in the prior art.
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Description

Technical Field

[0001] This invention relates to the field of vertical dredging channel maintenance equipment technology, and in particular to a vertical dredging channel dredging system. Background Technology

[0002] Over time, the bottom of water conservancy projects such as reservoirs and rivers accumulates a large amount of silt, necessitating regular dredging. Dredging can typically be carried out using a dredging vessel. Specifically, the dredging vessel is equipped with pipes that extend to the silt at the bottom, and then the silt is sucked up using a silt pump or similar equipment. Alternatively, a fixed system can be used, which is more suitable for reservoirs. This involves pre-burying pipes and suction inlets on the seabed, and setting up a water intake near the dam. Pipes extend below the water intake and then connect to it via a vertical dredging channel. During dredging, the silt passes through the dredging channel and pipes within the water intake, entering the pipes through the suction inlet and finally being sucked to the water intake. From there, it is transferred to a dredging truck for transport and removal. In practice, vertical dredging channels are easily blocked by silt. Over time, the silt can clump together, preventing dredging from proceeding properly. Therefore, it is necessary to clear the dredging channels before dredging. During clearing, mechanical tools can be used to loosen the silt, and then pumps can be used to remove it, but this method is relatively inefficient. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a vertical dredging channel clearing system, which solves the problem of low clearing efficiency in existing vertical dredging channels.

[0004] According to an embodiment of the present invention, a vertical dredging channel clearing system includes:

[0005] A sludge suction sleeve, one end of which is connected to a sludge suction head and the other end of which is connected to a sludge pump;

[0006] An air-increasing pipe, one end of which is located inside the suction sleeve, and the other end of which extends out of the suction sleeve and is connected to an air compressor;

[0007] A water-increasing pipe is provided, with a spray ring fixedly connected to one end of the water-increasing pipe and a high-pressure water pump connected to the other end. Several nozzles are also installed on the spray ring. The high-pressure water pump supplies high-pressure water into the water-increasing pipe, which then enters the spray ring and is sprayed out through the nozzles.

[0008] The suction head is located inside the dredging channel, while the sludge pump and the air compressor are located outside the dredging channel.

[0009] In the above embodiment, the air-increasing pipe can introduce high-pressure air into the blockage in the dredging channel via an air compressor. The high-pressure air can then impact the silt blockage, causing it to disperse. At the same time, the silt pump sucks the dispersed silt and high-pressure air away together, thereby improving the dredging efficiency.

[0010] Furthermore, it also includes a support cylinder, which includes a cylindrical section that is incorporated into the upper end of the dredging channel, and a support ring plate that is fixedly connected to the upper end of the cylindrical section. The support ring plate abuts against the outer edge of the upper end of the dredging channel. The bottom of the cylindrical section is also provided with a first through hole and a second through hole for the suction sleeve and the water-increasing pipe to pass through, respectively.

[0011] Furthermore, it also includes a movable frame, which includes a movable ring sleeved outside the suction sleeve and located above the spray ring, and a connecting rod fixedly connected to the movable ring, and the connecting rod is also fixedly connected to the spray ring.

[0012] Furthermore, the water supply pipe also passes through the moving ring.

[0013] Furthermore, two limiting rings located above and below the moving ring are fixedly connected to the water supply pipe.

[0014] Furthermore, a partition plate is fixedly connected to the end of the air booster pipe away from the air compressor. Several air outlets are also provided on the air booster pipe, and all the air outlets are located on both sides of the partition plate of the air compressor. The suction head includes an outer shell that is threadedly connected to and communicates with the suction sleeve. Several suction holes are also provided on the outer shell, and an inner sleeve is also provided inside the outer shell. The partition plate is also in sliding contact with the inner sleeve.

[0015] Furthermore, the outer shell has a tapered structure at the end opposite to the suction sleeve, and the inner sleeve is fixedly connected to the end of the tapered structure. All the suction ports are located on the tapered surface of the tapered structure.

[0016] Furthermore, the suction head is also fixedly connected to a connecting cylinder, which is threadedly connected to the suction sleeve.

[0017] Furthermore, a frame is fixedly connected to the end of the suction sleeve away from the sludge removal head, and the air-increasing pipe moves through the frame.

[0018] Furthermore, an elastic bladder is fixedly connected within the frame, the elastic bladder is also connected to the suction sleeve and the air-increasing pipe passes through the elastic bladder, and a flexible pipe is also provided between the sludge pump and the elastic bladder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] High-pressure air is used to disperse the silt blockage, and at the same time, a silt pump is used to suck out the mixture of silt and high-pressure air, thereby improving the dredging efficiency and solving the problem of low dredging efficiency in existing vertical dredging channels. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged schematic diagram of a local structure at point A;

[0023] In the above attached figures:

[0024] 1. Suction sleeve; 2. Sludge pump; 3. Air inlet pipe; 4. Air compressor; 5. Water inlet pipe; 6. Spray ring; 7. High-pressure water pump; 8. Nozzle; 9. Sludge blockage channel; 10. Temporary storage tank; 11. Support cylinder; 12. Cylinder section; 13. Support ring plate; 14. Moving frame; 15. Moving ring; 16. Connecting rod; 17. Limiting ring; 18. Partition plate; 19. Air outlet; 20. Outer shell; 21. Suction hole; 22. Inner sleeve; 23. Connecting cylinder; 24. Frame; 25. Elastic bladder; 26. Flexible tube; 27. Detailed Implementation

[0025] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 this invention and 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 this invention.

[0027] In an exemplary implementation, such as Figure 1 , 2 As shown, this embodiment provides a vertical dredging channel clearing system, which includes:

[0028] A sludge suction sleeve 1, one end of which is connected to a sludge suction head and the other end of which is connected to a sludge pump 2;

[0029] A gas-increasing pipe 3, one end of which is located inside the suction sleeve 1 and the other end extends out of the suction sleeve 1 and is connected to an air compressor 4;

[0030] The water supply pipe 5 has a spray ring 6 fixedly connected to one end of the water supply pipe 5 and a high-pressure water pump 7 connected to the other end. Several nozzles 8 are also installed on the spray ring 6. The high-pressure water pump 7 supplies high-pressure water into the water supply pipe 5 and then into the spray ring 6, and sprays it out through the nozzles 8.

[0031] The suction head is located inside the dredging channel 9, while the sludge pump 2 and the air compressor 4 are located outside the dredging channel 9.

[0032] In the above embodiment, the air-increasing pipe 3 can introduce high-pressure air into the blockage in the dredging channel 9 via the air compressor 4. The high-pressure air can impact the sludge blockage 10, causing the sludge blockage 10 to disperse. At the same time, the sludge pump 2 sucks outward, causing the dispersed sludge and high-pressure air to be sucked away together, thereby improving the dredging efficiency.

[0033] Simultaneously, the water supply pipe 5 introduces high-pressure water into the dredging channel 9. The high-pressure water provides a medium for the sludge, allowing the sludge, high-pressure air, and high-pressure water to form a mixture that is then pumped away by the sludge pump 2, thus increasing the pumping efficiency. Furthermore, the high-pressure water, sprayed through the nozzle 8, can also impact the sludge blockage 10, working in conjunction with the high-pressure air to disperse the blockage and improve dredging efficiency. More specifically, a sludge temporary storage tank 11 is also installed outside the dredging channel 9, and the sludge pump 2 pumps the mixture into the temporary storage tank 11. Within 1, with the assistance of high-pressure air and high-pressure water, the sludge can be pumped out more quickly without causing blockage of the suction sleeve 1. Furthermore, in this embodiment, the air-increasing pipe 3 is located inside the suction sleeve 1, and high-pressure air is sprayed from the lower end of the suction sleeve 1 towards the sludge blockage 10. This saves the space occupied by the overall equipment, and at the same time, the sprayed high-pressure air is guided by the suction sleeve 1 to be aimed at the sludge blockage 10, so as to more efficiently impact the sludge blockage 10. Then, it mixes with the dispersed sludge and high-pressure water and is sucked into the suction sleeve 1 through the suction head.

[0034] like Figure 2As shown, in a further exemplary embodiment, the dredging system also includes a support cylinder 12. The support cylinder 12 includes a cylindrical section 13 that is incorporated into the upper end of the dredging channel 9, and a support ring plate 14 fixedly connected to the upper end of the cylindrical section 13. The support ring plate 14 rests against the outer edge of the upper end of the dredging channel 9. The bottom of the cylindrical section 13 is also provided with a first through hole and a second through hole for the suction sleeve 1 and the water-increasing pipe 5 to pass through, respectively. The support cylinder 12, through the support ring plate 14, rests against the upper end of the dredging channel 9, providing a relatively stable foundation for the suction sleeve 1 and the water-increasing pipe 5 (the suction sleeve 1 and the water-increasing pipe 5 are movable relative to the first through hole and the second through hole), ensuring the stability of the overall equipment during operation.

[0035] like Figure 1 , 2 As shown, in a further exemplary embodiment, the dredging system also includes a movable frame 15. The movable frame 15 includes a movable ring 16 sleeved on the suction sleeve 1 and located above the spray ring 6, and a connecting rod 17 fixedly connected to the movable ring 16. The connecting rod 17 is also fixedly connected to the spray ring 6. The movable ring 16 can move up and down relative to the suction sleeve 1 under the drive of the water-increasing pipe 5, thereby causing the spray ring 6 to move up and down as well, adjusting the height of the high-pressure water jet. Therefore, it can also flush the inner wall of the dredging channel 9. More specifically, the water-increasing pipe 5 also passes through the movable ring 16. Two limiting rings 18 located above and below the movable ring 16 are fixedly connected to the water-increasing pipe 5. That is, the water-increasing pipe 5 and the movable ring 16 are relatively fixed by the two limiting rings 18, thereby ensuring that the water-increasing pipe 5 can pull the movable ring 16 up and down, while the part between the water-increasing pipe 5 and the spray ring 6 is relatively stable and will not easily detach, so as to ensure that high-pressure water is stably sent into the spray ring 6 and then sprayed out through the nozzle 8.

[0036] like Figure 1 , 2As shown, in a further exemplary embodiment, the end of the air booster pipe 3 facing away from the air compressor 4 is also fixedly connected to a partition plate 19. The air booster pipe 3 is also provided with a plurality of air outlets 20, and all the air outlets are located on both sides of the partition plate 19 of the air compressor 4. The suction head includes an outer shell 21 that is threadedly connected to and communicates with the suction sleeve 1. The outer shell 21 is also provided with a plurality of suction holes 22, and an inner sleeve 23 is also provided inside the outer shell 21. The partition plate 19 is also slidably abutting against the inner sleeve 23. The partition plate 19 is designed to separate the air outlet 20 from the suction sleeve 1, allowing high-pressure air to be ejected through the inner sleeve 23 instead of flowing back into the suction sleeve 1. This allows for better impact on the sludge blockage 10. In particular, the nozzle 8 on the spray ring 6 can be angled outwards and downwards, flushing the inner wall of the sludge removal channel 9 while also impacting the outer periphery of the sludge blockage 10 at the bottom (i.e., the junction of the sludge blockage 10 and the sludge removal channel 9). This, combined with the high-pressure air in the middle, better disperses the sludge blockage 10. Then, the high-pressure air, high-pressure water, and dispersed sludge are drawn into the outer shell 21 through the suction hole 22 and then into the suction sleeve 1.

[0037] like Figure 1 , 2 As shown, in a further exemplary embodiment, the end of the outer shell 21 facing away from the suction sleeve 1 is tapered, and the inner sleeve 23 is fixedly connected to the end of the tapered structure. All suction ports are located on the tapered surface of the tapered structure. The tip of the tapered outer shell 21 is the high-pressure air outlet. After the high-pressure air is released, the tip of the outer shell 21 can penetrate into the inner wall of the sludge blockage 10, thereby further impacting the sludge blockage 10 from the inside, enabling more efficient unblocking. On the other hand, the tapered surface has a relatively larger area, allowing for more suction holes 22 to be provided, thereby improving the efficiency of the mixture entering the outer shell 21. More importantly, the high-pressure water sprayed by the spray ring 6 and nozzle 8 forms a water curtain above the outer shell 21, which can also prevent the mixture from moving upwards onto the spray ring 6, thus allowing more of the mixture to enter the outer shell 21 and be sucked out into the temporary storage tank 11.

[0038] like Figure 2 As shown, in a specific exemplary solution, the suction head is also fixedly connected to a connecting cylinder 24, which is threadedly connected to the suction sleeve 1. That is, the suction head is connected through the threaded engagement between the connecting cylinder 24 and the suction sleeve 1. Furthermore, when the connecting cylinder 24 and the suction sleeve 1 are connected, the inner sleeve 23 and the partition plate 19 also abut against each other, thus separating the outer shell 21 from the inner sleeve 23.

[0039] like Figure 1 As shown, in a further exemplary embodiment, the end of the suction sleeve 1 facing away from the sludge removal head is also fixedly connected to a frame 25. The air-enhancing pipe 3 moves through the frame 25. The frame 25 serves as a handle for easy gripping and operation by the operator. An elastic bladder 26 (made of elastic rubber) is also fixedly connected inside the frame 25. The elastic bladder 26 is also connected to the suction sleeve 1, and the air-enhancing pipe 3 passes through the elastic bladder 26. A flexible pipe 27 is also provided between the sludge pump 2 and the elastic bladder 26. The elastic bladder 26 is connected to the suction sleeve 1 but separated from the air-enhancing pipe 3. That is, after the mixture passes through the suction sleeve 1, it first enters the elastic bladder 26, then enters the sludge pump 2 through the flexible pipe 27, and finally is pumped into the temporary storage tank 11. At the same time, the air-enhancing pipe 3 and the elastic bladder 26 are relatively fixed. The elastic bladder 26 can undergo a certain expansion deformation under the action of high-pressure water and high-pressure air to avoid being damaged by the high-pressure mixture.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A vertical dredging channel clearing system, characterized in that, include: A sludge suction sleeve, one end of which is connected to a sludge suction head and the other end of which is connected to a sludge pump; An air-increasing pipe, one end of which is located inside the suction sleeve, and the other end of which extends out of the suction sleeve and is connected to an air compressor; A water-increasing pipe is provided, with a spray ring fixedly connected to one end of the water-increasing pipe and a high-pressure water pump connected to the other end. Several nozzles are also installed on the spray ring. The high-pressure water pump supplies high-pressure water into the water-increasing pipe, which then enters the spray ring and is sprayed out through the nozzles. The suction head is located inside the dredging channel, while the sludge pump and the air compressor are located outside the dredging channel. A baffle plate is fixedly connected to the end of the air-increasing pipe opposite to the air compressor. Several air outlets are also provided on the air-increasing pipe, with all outlets located on either side of the baffle plate. The suction head includes an outer shell threadedly connected to and communicating with the suction sleeve. Several suction holes are provided on the outer shell, and an inner sleeve is also provided inside the outer shell. The baffle plate slides against the inner sleeve. The end of the outer shell opposite to the suction sleeve is tapered, and the inner sleeve is fixedly connected to the end of the tapered structure. All suction holes are located on the tapered surface of the tapered structure.

2. The vertical dredging channel clearing system as described in claim 1, characterized in that, It also includes a support cylinder, which includes a cylindrical section that is incorporated into the upper end of the dredging channel, and a support ring plate that is fixedly connected to the upper end of the cylindrical section. The support ring plate abuts against the outer edge of the upper end of the dredging channel. The bottom of the cylindrical section is also provided with a first through hole and a second through hole for the suction sleeve and the water-increasing pipe to pass through, respectively.

3. The vertical dredging channel clearing system as described in claim 1, characterized in that, It also includes a movable frame, which includes a movable ring sleeved outside the suction sleeve and located above the spray ring, and a connecting rod fixedly connected to the movable ring, and the connecting rod is also fixedly connected to the spray ring.

4. The vertical dredging channel clearing system as described in claim 3, characterized in that, The water supply pipe also passes through the moving ring.

5. The vertical dredging channel clearing system as described in claim 4, characterized in that, The water supply pipe is also fixedly connected to two limiting rings located above and below the moving ring.

6. The vertical dredging channel clearing system as described in claim 1, characterized in that, The suction head is also fixedly connected to a connecting cylinder, which is threadedly connected to the suction sleeve.

7. The vertical dredging channel clearing system as described in any one of claims 1-6, characterized in that, The end of the suction sleeve opposite to the suction head is also fixedly connected to a frame, and the air-enhancing tube moves through the frame.

8. The vertical dredging channel clearing system as described in claim 7, characterized in that, An elastic bladder is also fixedly connected inside the frame. The elastic bladder is also connected to the suction sleeve, and the air-increasing pipe passes through the elastic bladder. A flexible pipe is also provided between the sludge pump and the elastic bladder.

Citation Information

Patent Citations

  • Channel ecological restoration device in comprehensive land improvement

    CN114059612A

  • Downhole reverse circulation desilting device

    CN219931081U