A new river dredging device
By introducing a crushing section and a vibrating screen filter pretreatment into the dredging device, combined with a mud-water separation system and a liquid level sensor, the problems of poor crushing effect and easy clogging of the filter screen in the existing device are solved, achieving efficient sludge cleaning and self-controlled submersion, thus improving dredging efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGTZE THREE GORGES TECHNOLOGY & ECONOMY DEVELOPMENT CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
Existing dredging devices suffer from poor crushing effect, easy clogging of the filter screen, and inability to automatically control the diving depth of the suction head, resulting in low dredging efficiency.
A novel river dredging device was designed, comprising a crushing section, a filtering section, and a suction section. It uses a crushing drill bit motor and a vibrating screen for pretreatment, and combines a mud-water separation system and a liquid level sensor to achieve self-controlled submersion, ensuring unobstructed flow and efficient separation of the suction head.
It improves crushing efficiency, prevents filter clogging, achieves efficient separation of sludge and clean water, enhances the self-control capability of the dredging device, and improves work efficiency.
Smart Images
Figure CN224338319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a new type of river dredging device. Background Technology
[0002] Cleaning silt from river channels has always been a challenging problem in water conservancy projects, leading to the development of silt removal devices. However, traditional silt removal devices often suffer from problems such as clogged suction pipes, fixed suction depths that cannot be adjusted in real time, and inadequate silt treatment. Therefore, ensuring unobstructed suction pipes, adapting to different siltation depths, and achieving mud-water separation have become key research areas for silt removal devices.
[0003] Existing dredging devices, such as the "River Dredging Equipment" with announcement number CN212641577U, have the following problems:
[0004] 1. Poor crushing effect: The device crushes on the outside of the suction head, which cannot effectively crush the gravel. Many hard materials will disperse in all directions and clog the suction head.
[0005] 2. The filter screen of the device is prone to clogging, which affects the cement separation effect;
[0006] 3. The diving depth of the device cannot be controlled automatically. Utility Model Content
[0007] This utility model provides a new type of river dredging device, which aims to solve the defects of the existing dredging devices mentioned above, such as poor crushing effect, easy clogging of the filter screen resulting in poor cement separation effect, and inability to control the diving depth of the suction head.
[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0009] A novel river dredging device includes a dredging platform that navigates on the water surface via a drive device. The top of the dredging platform is equipped with a mud-water separation system, and the bottom of the dredging platform is equipped with a retractable suction head device. The inlet of the suction head device faces the front of the dredging platform and is arranged horizontally.
[0010] The suction head device is provided with a crushing section, a filtering section and a suction section in sequence along the suction direction. The filtering section includes a vibrating screen filter screen provided in the suction head device. The crushing section and the suction section are separated by the vibrating screen filter screen. The suction head device is provided with a vibrating screen motor that is linked with the vibrating screen filter screen to form screen vibration.
[0011] The mud-water separation system includes a mud-water separation device that separates mud and water by centrifugation, and the discharge port of the suction head device is connected to the inlet of the mud-water separation device through a suction pipe.
[0012] Preferably, the crushing part of the suction head device includes a crushing drill motor bracket located at the inlet of the suction head device, a crushing drill motor is mounted on the crushing drill motor bracket, and a crushing drill bit is linkedly mounted on the output shaft of the crushing drill motor.
[0013] Preferably, the bottom of the suction head device located on the side of the vibrating screen filter screen near the crushing part is provided with a sewage outlet. Material that cannot pass through the vibrating screen filter screen after being crushed by the crushing part is discharged from the suction head device through the sewage outlet.
[0014] Preferably, the suction part of the suction head device includes a suction motor bracket located at the outlet of the suction head device, a suction motor is mounted on the suction motor bracket, and a suction rotary impeller is linkedly mounted on the output shaft of the suction motor.
[0015] Preferably, the suction head device is a square tubular structure located in front of the suction section, the crushing section is concentric and coaxial with the suction section through the filtering section, and the suction head device is a frustum-shaped tubular structure located behind the suction section, gradually contracting to the inlet of the suction pipe.
[0016] Preferably, the bottom of the dredging platform is connected to the suction head device via an underwater hydraulic telescopic rod, and the suction head device forms a telescopic cooperation with the bottom of the dredging platform via the underwater hydraulic telescopic rod. The underwater hydraulic telescopic rod is driven by an underwater hydraulic telescopic rod motor to extend and retract.
[0017] More preferably, the top of the dredging platform is equipped with a control device, and the top of the suction head device is equipped with a liquid level sensor. The underwater hydraulic telescopic rod motor, the suction head device, and the mud-water separation system are all linked and coordinated with the liquid level sensor through the control device.
[0018] Furthermore, the top of the dredging platform is equipped with a power generation device, which is electrically connected to the sludge suction head device, control device, drive device and mud-water separation system.
[0019] Preferably, the bottom front side of the dredging platform is equipped with an underwater forward-looking monitoring system, and the bottom rear side of the dredging platform is equipped with an underwater rear-looking monitoring system.
[0020] Preferably, the water outlet of the mud-water separation device is connected to the navigation water area through a drain pipe, and a sludge tank is provided on the dredging platform on one side of the mud-water separation device. The mud outlet of the mud-water separation device is connected to the sludge tank through a connecting pipe.
[0021] The beneficial effects of this utility model are:
[0022] 1. This utility model arranges a crushing section inside the suction filter head, which crushes the sludge in a limited space after it is rolled in, thereby improving the crushing effect and crushing efficiency and reducing the pressure of subsequent mud-water separation treatment.
[0023] 2. The device uses a vibrating motor to drive the vibrating screen to vibrate and form a vibrating screen to complete the pretreatment, reduce the subsequent separation pressure, ensure the separation effect, and enable the rapid screening and filtration of materials. Materials that meet the conditions are quickly removed from the screen under the traction of the suction filter and enter the subsequent separation. Materials that do not meet the conditions are finally discharged from the sewage outlet, preventing the screen and channel from being blocked and improving the sludge removal efficiency.
[0024] 3. The mud-water separation system separates sludge and clean water through centrifugation and collects them separately;
[0025] 4. It also has liquid level monitoring and real-time environmental inspection functions. The liquid level sensor can realize the automatic control of device lowering and start-up, which greatly improves work efficiency. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a cross-sectional structural diagram of the suction head device of this utility model;
[0028] In the diagram: 1. Crushing drill bit; 2. Liquid level sensor; 3. Vibrating screen motor; 4. Underwater hydraulic telescopic rod; 5. Sludge suction motor; 6. Sludge suction head device; 7. Sludge suction motor bracket; 8. Sludge suction rotary impeller; 9. Vibrating screen filter; 10. Sewage outlet; 11. Crushing drill bit motor bracket; 12. Crushing drill bit motor; 13. Underwater forward-looking monitoring; 14. Dredging platform; 15. Power generation device; 16. Underwater hydraulic telescopic rod motor; 17. Control device; 18. Sludge suction pipe; 19. Connecting pipe; 20. Sludge tank; 21. Mud-water separation device; 22. Drive device; 23. Drainage pipe; 24. Underwater rear-view monitoring. Detailed Implementation
[0029] The embodiments will be further described below with reference to the accompanying drawings.
[0030] like Figure 1 and Figure 2 As shown in the preferred embodiment 1, a novel river dredging device includes a dredging platform 14 that navigates on the water surface via a drive device 22. The top of the dredging platform 14 is equipped with a mud-water separation system, and the bottom of the dredging platform 14 is equipped with a retractable suction head device 6. The inlet of the suction head device 6 faces the front side of the dredging platform 14 and is arranged horizontally.
[0031] The suction head device 6 is provided with a crushing section, a filtering section and a suction section in sequence along the suction direction. The filtering section includes a vibrating screen filter 9 provided in the suction head device 6. The crushing section and the suction section are separated by the vibrating screen filter 9. The suction head device 6 is provided with a vibrating screen motor 3 which is linked with the vibrating screen filter 9 to form screen vibration.
[0032] The mud-water separation system includes a mud-water separation device 21 that separates mud and water by centrifugation, and the discharge port of the suction head device 6 is connected to the inlet of the mud-water separation device 21 through a suction pipe 18.
[0033] The device drives the dredging platform 14 to navigate on the water surface via the drive unit 22, lowering the suction head device 6 to the set depth. While moving, it performs dredging. During movement, the sludge is directly shoveled into the suction head device 6, and the sludge and debris are rolled into and crushed by the crushing part. After being screened by the vibrating screen motor 3 and the vibrating screen filter 9, the sludge enters the mud-water separation system under the traction of the suction part. This ensures that the equipment can withstand underwater scouring without falling off. The sludge is pre-treated and screened to ensure that only sludge is collected. The vibrating screen filter can prevent the filter holes from being blocked. The vibration can loosen the blockage in time, and the suction part can dredge the screen. After entering the mud-water separation system, the sludge is centrifuged by the mud-water separation device 21 to separate the mud and water, which are collected separately. The water is discharged into the water body, and the sludge is collected separately.
[0034] Preferably, the suction pipe 18 uses a telescopic plastic pipe to reduce the weight of the equipment while allowing its length to change with depth.
[0035] Preferably, the mud-water separation device 21 can be an existing mud and sand centrifugal dewatering machine, such as the mud and sand centrifugal dewatering machine with model number I5O-69ZZ-8673.
[0036] In a preferred embodiment 2, the crushing section of the suction head device 6 includes a crushing drill motor bracket 11 located at the inlet of the suction head device 6. A crushing drill motor 12 is mounted on the crushing drill motor bracket 11, and a crushing drill bit 1 is linkedly mounted on the output shaft of the crushing drill motor 12. The crushing drill motor bracket 11 is a hollow bracket, and the crushing drill bit mounting bracket 11 adopts a four-distributed bracket structure. Each bracket is minimized while ensuring strength and support, thereby achieving a drag reduction effect. The crushing drill motor 12 is fixedly installed in the middle of the bracket, driving the crushing drill bit 1 to roll the sludge and dirt into the suction head device 6 for crushing. It crushes hard stones and other debris in the sludge, preventing stones from being sucked in and blocking the suction channel or damaging the suction components.
[0037] In a preferred embodiment 3, the bottom of the suction head device 6, located on the side of the vibrating screen filter 9 near the crushing section, is provided with a drain port 10. Material that cannot pass through the vibrating screen filter 9 after being crushed by the crushing section is discharged from the suction head device 6 through the drain port 10. The drain port 10 is the outlet for debris intercepted by the filter screen, preventing it from accumulating in the channel and causing blockage. It discharges uncrushable materials and materials with excessively large filter diameters that are difficult to collect from the channel as quickly as possible, avoiding blockage inside the suction head.
[0038] In a preferred embodiment 4, the suction head device 6 includes a suction motor bracket 7 located at the outlet of the suction head device 6. A suction motor 5 is mounted on the suction motor bracket 7, and a suction rotary impeller 8 is mounted on the output shaft of the suction motor 5. The suction motor bracket 7 is a hollow bracket, with the suction motor 5 installed in the middle. The suction motor 5 drives the suction rotary impeller 8 to rotate, generating a vortex flow that draws the filtered sludge and water to the mud-water separation device 21. The suction rotary impeller 8 adopts a semi-open front structure, which can achieve the effects of pressurization and increased head. The final barrel-shaped contraction structure smoothly delivers the sucked mud-water mixture into the pipeline.
[0039] In a preferred embodiment 5, the suction head device 6 is a square tubular structure located in front of the suction section. The crushing section is concentric and coaxial with the suction section through the filtering section. The suction head device 6 is a frustum-shaped tubular structure located behind the suction section, gradually narrowing to the inlet of the suction pipe 18. This ensures that the suction head device 6 has a relatively regular shape, facilitating use and arrangement. At the same time, the crushed material can be filtered under traction, improving the filtration effect.
[0040] In a preferred embodiment 6, the bottom of the dredging platform 14 is connected to the suction head device 6 via an underwater hydraulic telescopic rod 4, and the suction head device 6 forms a telescopic fit with the bottom of the dredging platform 14 via the underwater hydraulic telescopic rod 4. The underwater hydraulic telescopic rod 4 is driven by an underwater hydraulic telescopic rod motor 16 to extend and retract. The underwater hydraulic telescopic rod 4 is driven by the underwater hydraulic telescopic rod motor 16, and its upper and lower ends are fixed to the suction head device 6 and the dredging platform 14 by bolts. This device specifically uses an underwater hydraulic telescopic rod 4, which can adapt to the underwater pressure environment for a long time. The underwater hydraulic telescopic rod motor 16 receives signals from the control center to perform extension and retraction operations, realizing the real-time adjustment of the suction head height according to the dredging situation.
[0041] In a preferred embodiment 7, the top of the dredging platform 14 is equipped with a control device 17, and the top of the suction head device 6 is equipped with a liquid level sensor 2. The underwater hydraulic telescopic rod motor 16, the suction head device 6, and the mud-water separation system are all linked and coordinated with the liquid level sensor 2 through the control device 17. The control device 17 includes a controller and a display screen, serving as the control center and display and adjustment mechanism for achieving automatic control. When the platform descends to a set depth, dredging begins. The underwater hydraulic telescopic rod motor 16 is braked to fix the depth of the suction head device 6, and the suction head device 6 and the mud-water separation system are activated to begin sludge collection and removal. After use, the process is terminated via the control device 17.
[0042] In a preferred embodiment 8, the top of the dredging platform 14 is equipped with a power generation device 15, which is electrically connected to the suction head device 6, the control device 17, the drive device 22, and the mud-water separation system. The power generation device uses a gasoline generator to accommodate the dredging volume, providing long-term power to all electrical components of the system and enabling it to withstand high-intensity dredging operations.
[0043] As a preferred embodiment 9, the dredging platform 14 is provided with an underwater forward-looking monitor 13 on the bottom front side and an underwater rear-looking monitor 24 on the bottom rear side. The video signals of the underwater forward-looking monitor 13 and the underwater rear-looking monitor 24 can be acquired by the control device 17 for real-time monitoring, which facilitates understanding of the surrounding environment of the device and allows for dynamic adjustment of the dredging position, further improving work efficiency.
[0044] In a preferred embodiment 10, the outlet of the mud-water separation device 21 is connected to the navigation area via a drain pipe 23. A sludge tank 20 is installed on a dredging platform 14 on one side of the mud-water separation device 21, and the sludge outlet of the mud-water separation device 21 is connected to the sludge tank 20 via a connecting pipe 19. The drain pipe 23 enables the purified water separated by the mud-water separation device 21 to be directly discharged back into the river, thereby reducing the overall external discharge load. The connecting pipe 19 of the sludge tank 20 adopts a quick-release structure, which allows for the replacement of the sludge tank 20 or conversion to a pipeline for external discharge.
[0045] The working principle of this utility model:
[0046] The device drives the dredging platform 14 to navigate on the water surface via the drive unit 22, lowering the suction head device 6 to the set depth. While moving, it performs dredging. During movement, the sludge is directly shoveled into the suction head device 6, and the sludge and debris are rolled into and crushed by the crushing part. After being screened by the vibrating screen motor 3 and the vibrating screen filter 9, the sludge enters the mud-water separation system under the traction of the suction part. This ensures that the equipment can withstand underwater scouring without falling off. The sludge is pre-treated and screened to ensure that only sludge is collected. The vibrating screen filter can prevent the filter holes from being blocked. The vibration can loosen the blockage in time, and the suction part can dredge the screen. After entering the mud-water separation system, the sludge is centrifuged by the mud-water separation device 21 to separate the mud and water, which are collected separately. The water is discharged into the water body, and the sludge is collected separately.
Claims
1. A novel river dredging device, comprising a dredging platform (14) that navigates on the water surface via a drive device (22), characterized in that, The dredging platform (14) is equipped with a mud-water separation system at the top and a dredging head device (6) is provided at the bottom of the dredging platform (14) in a retractable manner. The inlet of the dredging head device (6) faces the front side of the dredging platform (14) and is arranged horizontally. The suction head device (6) is provided with a crushing part, a filtering part and a suction part in sequence along the suction direction. The filtering part includes a vibrating screen filter (9) provided in the suction head device (6). The crushing part and the suction part are separated by the vibrating screen filter (9). The suction head device (6) is provided with a vibrating screen motor (3) which is linked with the vibrating screen filter (9) to form screen vibration. The mud-water separation system includes a mud-water separation device (21) that separates mud and water by centrifugation, and the discharge port of the suction head device (6) is connected to the inlet of the mud-water separation device (21) through a suction pipe (18).
2. The novel river dredging device according to claim 1, characterized in that, The crushing part of the suction head device (6) includes a crushing drill motor bracket (11) located at the inlet of the suction head device (6), a crushing drill motor (12) is installed on the crushing drill motor bracket (11), and a crushing drill bit (1) is installed on the output shaft of the crushing drill motor (12).
3. The novel river dredging device according to claim 1, characterized in that, The bottom of the suction head device (6) located on the side of the vibrating screen filter (9) near the crushing part is provided with a drain port (10). Material that cannot pass through the vibrating screen filter (9) after being crushed by the crushing part is discharged from the suction head device (6) through the drain port (10).
4. The novel river dredging device according to claim 1, characterized in that, The suction head device (6) includes a suction motor bracket (7) located at the outlet of the suction head device (6), a suction motor (5) is mounted on the suction motor bracket (7), and a suction rotary impeller (8) is mounted on the output shaft of the suction motor (5).
5. A novel river dredging device according to claim 1, characterized in that, The suction head device (6) is a square tubular structure located in front of the suction section. The crushing section is coaxial with the suction section through the filtering section. The suction head device (6) is a frustum-shaped tubular structure located behind the suction section, which gradually shrinks to the inlet of the suction pipe (18).
6. The novel river dredging device according to claim 1, characterized in that, The bottom of the dredging platform (14) is connected to the suction head device (6) via an underwater hydraulic telescopic rod (4), and the suction head device (6) forms a telescopic cooperation with the bottom of the dredging platform (14) via the underwater hydraulic telescopic rod (4). The underwater hydraulic telescopic rod (4) is driven by the underwater hydraulic telescopic rod motor (16) to form a telescopic connection.
7. A novel river dredging device according to claim 6, characterized in that, The top of the dredging platform (14) is equipped with a control device (17), and the top of the suction head device (6) is equipped with a liquid level sensor (2). The underwater hydraulic telescopic rod motor (16), the suction head device (6) and the mud-water separation system are all linked and coordinated with the liquid level sensor (2) through the control device (17).
8. A novel river dredging device according to claim 7, characterized in that, The top of the dredging platform (14) is equipped with a power generation device (15), which is electrically connected to the suction head device (6), the control device (17), the drive device (22) and the mud-water separation system.
9. A novel river dredging device according to claim 1, characterized in that, The dredging platform (14) is equipped with an underwater forward-looking monitor (13) on the bottom front side and an underwater rear-looking monitor (24) on the bottom rear side.
10. A novel river dredging device according to claim 1, characterized in that, The water outlet of the mud-water separation device (21) is connected to the navigation water area through the drain pipe (23). A sludge tank (20) is provided on the dredging platform (14) on one side of the mud-water separation device (21). The mud outlet of the mud-water separation device (21) is connected to the sludge tank (20) through the connecting pipe (19).