River bottom sludge cleaning device
By designing a vertical pipe body and a power pump system, the problem of poor cleaning effect of riverbed silt removal devices in low-flow-rate waters was solved, achieving efficient silt removal and storage and reducing environmental impact.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIZHAO SHANHAITIAN RURAL WATER SUPPLY CO LTD
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-17
AI Technical Summary
Existing riverbed silt removal devices are ineffective in areas with low water flow rates, failing to remove silt effectively and leading to silt accumulation that affects water quality.
The system employs a vertical pipe body and a power pump system. The sludge is impacted and transferred within the vertical pipe body, and the power pump is used to discharge the sludge slurry. Combined with a gradually changing diameter pipe structure and an inclined temporary storage cavity design, the dredging effect and sludge storage capacity are improved.
It effectively reduced the negative impact on the external environment, improved the efficiency of sludge removal, reduced mud leakage, and enhanced sludge storage capacity.
Smart Images

Figure CN224133826U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a device for cleaning riverbed silt. Background Technology
[0002] Rivers, lakes, reservoirs, dams, and other bodies of water all accumulate bottom silt. This silt contains not only mud and gravel but also a large amount of organic matter. Long-term accumulation can negatively impact water quality. Currently, bottom silt is typically removed by flushing, but this method is less effective in areas with low water flow, where silt continues to accumulate. Therefore, effective and regular silt removal is necessary, but existing treatment systems are inadequate. Utility Model Content
[0003] To address the aforementioned problems, this application proposes a riverbed silt removal device, comprising a bottom cover, an outer protective shell at the top of the bottom cover, an annular shell inside the bottom cover, and a plurality of vertical pipes inside the annular shell. The vertical pipes are connected to a vertical main pipe. An auxiliary outlet pipe is located at the top of the annular shell. The top of the vertical main pipe is connected to a buffer tank via a first power pump, and the top of the auxiliary outlet pipe is connected to the buffer tank via a second power pump. The bottom of the buffer tank is connected to a temporary storage cavity via an intermediate pipe. The first power pump, buffer tank, second power pump, intermediate pipe, and temporary storage cavity are mounted on a supporting vessel hull. This application employs a vertical pipe body within the bottom cover to impact and transfer internal sludge. This reduces the negative impact on the external environment during sludge transfer. During removal, the first power pump, through the vertical main pipe, and the second power pump, through the auxiliary outlet pipe, discharge the sludge containing a large amount of sludge from the annular shell to the outside of the system. The timely removal of the second power pump can minimize the possibility of sludge entering the bottom cover and the annular shell, thereby reducing the likelihood of it entering the bottom cover.
[0004] Preferably, the vertical pipe body includes a vertical pipe body located at the bottom, and a horizontal pipe is provided at the top of the vertical pipe body, the horizontal pipe being connected to the side of the vertical main pipe.
[0005] Preferably, several auxiliary vertical pipes are also provided in the middle of the horizontal pipe.
[0006] Preferably, the diameters of the vertical pipe body and the internal channels of the auxiliary vertical pipe are gradually reduced from top to bottom. This application adopts a vertical pipe body and auxiliary vertical pipe structure with gradually decreasing diameters, which can maximize the impact force of cement and thus improve the dredging effect.
[0007] Preferably, a number of connecting reinforcing ribs are provided between the outer protective shell and the annular shell.
[0008] Preferably, the top of the outer protective shell is provided with an upper connecting and reinforcing chain, which is powered by a winch.
[0009] Preferably, the upper portions of the vertical main pipe and the auxiliary outlet pipe are respectively provided with buffer connecting hoses. By using buffer connecting hoses in conjunction with a winch, this application enables the vertical main pipe and the bottom cover to be adjusted and moved at a certain height, while also avoiding structural damage during the relocation process caused by rigid pipe connections.
[0010] Preferably, an intermediate pump connected to an intermediate tube is installed in the temporary storage cavity.
[0011] Preferably, a gravel filter layer is provided at the end of the temporary storage cavity. The temporary storage cavity is inclined, and the gravel filter layer is located on the lower side of the temporary storage cavity. An outlet is provided on the outside of the gravel filter layer, and the outlet is located on the outside of the supporting hull. This application uses an inclined temporary storage cavity and a gravel filter layer, which allows a portion of the water energy in the temporary storage cavity to be filtered through the gravel filter layer and removed from the system, thereby increasing the effective storage capacity of the temporary storage cavity for silt.
[0012] This application can bring the following beneficial effects:
[0013] 1. This application uses a vertical pipe body to impact and transfer the internal sludge within the bottom cover, which can reduce the negative impact on the external environment during sludge transfer. During removal, the first power pump discharges the sludge containing a large amount of sludge from the annular shell to the outside of the system through the vertical main pipe and the second power pump discharges it through the auxiliary outlet pipe. The timely removal of the second power pump can minimize the possibility of sludge entering the bottom cover and the annular shell, thereby reducing the possibility of it entering the bottom cover.
[0014] 2. This application adopts a vertical pipe body with a gradually changing diameter and an auxiliary vertical pipe structure, which can maximize the impact force of cement and thus improve the dredging effect.
[0015] 3. This application uses an inclined temporary storage chamber and a gravel filter layer, which allows some of the water in the temporary storage chamber to be filtered by the gravel filter layer and then removed from the system, thereby increasing the effective storage capacity of the temporary storage chamber for sludge. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this application.
[0018] Figure 2 This is a schematic diagram of the internal structure of the bottom cover section.
[0019] Figure 3 This is a top view of the present application.
[0020] Figure 4 This is a schematic diagram of the first state structure used in this application.
[0021] Figure 5 This is a schematic diagram of the second state structure when used in this application.
[0022] Figure 6 This is a schematic diagram of the third-state structure used in this application. Detailed Implementation
[0023] To clearly illustrate the technical features of this solution, the following detailed description, in conjunction with the accompanying drawings, will be provided.
[0024] In the first embodiment, such as Figure 1-2 As shown, a riverbed silt removal device includes a bottom cover 1, an outer protective shell 2 on the upper part of the bottom cover 1, an annular shell 3 inside the bottom cover 1, and several vertical pipes 4 inside the annular shell 3. The vertical pipes 4 are connected to a vertical main pipe 5. An auxiliary outlet pipe 6 is provided on the upper part of the annular shell 3. The top of the vertical main pipe 5 is connected to a buffer tank 8 through a first power pump 7. The top of the auxiliary outlet pipe 6 is connected to the buffer tank 8 through a second power pump 9. The bottom of the buffer tank 8 is connected to a temporary storage cavity 11 through an intermediate pipe 10. The first power pump 7, the buffer tank 8, the second power pump 9, the intermediate pipe 10, and the temporary storage cavity 11 are mounted on a supporting hull 12.
[0025] In use, the device is first placed at the location where sludge needs to be removed. Then, the first power pump 7 draws water from the temporary storage chamber 11 and supplies water to the vertical main pipe 5 and vertical pipe body 4 for flushing, so that the sludge can be flushed up from the bottom cover 1. At this time, the second power pump 9 continuously discharges water with sludge from the auxiliary outlet pipe 6. After the set time is reached, the second power pump 9 reverses its action, so that the water with sludge enters the vertical main pipe 5 and vertical pipe body 4, and then enters the buffer tank 8. The material in the buffer tank 8 then enters the temporary storage chamber 11 through the intermediate pipe 10.
[0026] In the second embodiment, as Figure 1-6 As shown, a riverbed silt removal device includes a bottom cover 1, an outer protective shell 2 on the upper part of the bottom cover 1, an annular shell 3 inside the bottom cover 1, and several vertical pipes 4 inside the annular shell 3. The vertical pipes 4 are connected to a vertical main pipe 5. An auxiliary outlet pipe 6 is provided on the upper part of the annular shell 3. The top of the vertical main pipe 5 is connected to a buffer tank 8 through a first power pump 7. The top of the auxiliary outlet pipe 6 is connected to the buffer tank 8 through a second power pump 9. The bottom of the buffer tank 8 is connected to a temporary storage cavity 11 through an intermediate pipe 10. The first power pump 7, the buffer tank 8, the second power pump 9, the intermediate pipe 10, and the temporary storage cavity 11 are mounted on a supporting hull 12.
[0027] The vertical pipe body 4 includes a lower vertical pipe body 13, and a horizontal pipe 14 is provided at the top of the vertical pipe body 13. The horizontal pipe 14 is connected to the side of the vertical main pipe 5. Several auxiliary vertical pipes 15 are also provided in the middle of the horizontal pipe 14. The diameter of the internal channels of the vertical pipe body 13 and the auxiliary vertical pipes 15 gradually decreases from top to bottom.
[0028] Several reinforcing ribs (not shown in the figure) are provided between the outer protective shell 2 and the annular shell 3. An upper connecting and reinforcing chain 16 is provided on the top of the outer protective shell 2, and the upper connecting and reinforcing chain 16 is poweredly connected to a winch 17. The upper parts of the vertical main pipe 5 and the auxiliary outlet pipe 6 are respectively provided with buffer connecting hoses (not shown in the figure).
[0029] An intermediate pump connected to an intermediate pipe 10 is installed inside the temporary storage chamber 11. A gravel filter layer 19 is installed at the end of the temporary storage chamber 11. The temporary storage chamber 11 is inclined, and the gravel filter layer 19 is located on the lower side of the temporary storage chamber 11. An outlet 18 is provided on the outside of the gravel filter layer 19, and the outlet 18 is located on the outside of the supporting hull 12.
[0030] In use, the outer protective shell 2 and internal components are lifted by a winch. The application is first placed at the location where sludge needs to be removed. Then, the first power pump 7 draws water from the temporary storage chamber 11 and supplies water to the vertical main pipe 5 and vertical pipe body 4 for flushing, so that the sludge can be flushed up from the bottom cover 1. At this time, the second power pump 9 continuously discharges water with sludge from the auxiliary outlet pipe 6. After the set time is reached, the second power pump 9 reverses its action, so that the water with sludge enters the vertical main pipe 5 and vertical pipe body 4, and then enters the buffer tank 8. The material in the buffer tank 8 then enters the temporary storage chamber 11 through the intermediate pipe 10 powered by the intermediate pump. In the temporary storage chamber 11, the water in the sludge is filtered back into the water body through the gravel filter layer at the end, so as to maximize the effective storage capacity of the sludge in the temporary storage chamber 11.
[0031] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A river bottom silt cleaning device characterized by: The device includes a bottom cover, an outer protective shell on the upper part of the bottom cover, an annular shell inside the bottom cover, and several vertical tubes inside the annular shell. The vertical tubes are connected to a vertical main pipe. An auxiliary outlet pipe is provided on the upper part of the annular shell. The top of the vertical main pipe is connected to a buffer tank via a first power pump, and the top of the auxiliary outlet pipe is connected to the buffer tank via a second power pump. The bottom of the buffer tank is connected to a temporary storage cavity via an intermediate pipe. The first power pump, the buffer tank, the second power pump, the intermediate pipe, and the temporary storage cavity are mounted on the hull of the supporting vessel.
2. A river bed silt cleaning device as claimed in claim 1, characterised in that: The vertical pipe body includes a vertical pipe body located at the bottom, and a horizontal pipe is provided at the top of the vertical pipe body. The horizontal pipe is connected to the side of the vertical main pipe.
3. A river bed silt clearing device as claimed in claim 2, characterised in that: Several auxiliary vertical pipes are also installed in the middle of the horizontal pipe.
4. A river bed silt clearing device as claimed in claim 3, characterised in that: The diameter of both the main vertical pipe and the internal channels of the auxiliary vertical pipe gradually decreases from top to bottom.
5. A river bottom sludge cleaning device as claimed in claim 1, characterized in that: Several connecting and reinforcing ribs are provided between the outer protective shell and the annular shell.
6. A riverbed silt cleaning device as claimed in claim 1, characterized in that: The top of the outer protective shell is provided with an upper connecting and reinforcing chain, which is powered by a winch.
7. A riverbed silt cleaning device as claimed in claim 1, characterized in that: The upper parts of the vertical main pipe and the auxiliary outlet pipe are respectively equipped with buffer connecting hoses.
8. A riverbed silt cleaning device as claimed in claim 1, characterized in that: An intermediate pump connected to the intermediate pipe is installed in the temporary storage chamber.
9. A riverbed silt cleaning device as claimed in claim 1, characterized in that: A gravel filter layer is provided at the end of the temporary storage cavity. The temporary storage cavity is inclined and the gravel filter layer is located on the lower side of the temporary storage cavity. An outlet is provided on the outside of the gravel filter layer and the outlet is located on the outside of the supporting hull.