Dredging device for water conservancy project

Abstract

The desilting device for the water conservancy project comprises a supporting column, the bottom end of the supporting column is fixedly connected with a protective cover, and a dredge pump is installed in the protective cover; the bottom end of the dredge pump is fixedly connected with a supporting sleeve; the bottom end of the supporting sleeve is rotationally connected with a fixing ring, the top end of the fixing ring is fixedly connected with a connecting ring, and the connecting ring is clamped and rotationally connected with the interior of the supporting sleeve; the bottom end of the fixing ring is fixedly connected with a supporting frame in a circular truncated cone shape, and a plurality of stirring rods are obliquely mounted in the bottom end of the supporting frame; a plurality of spray heads are obliquely installed on the side wall of the supporting frame and communicate with the interior of the fixing ring through connecting pipes. The desilting device for the water conservancy project has the advantages that silt is fully crushed, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy dredging technology, and in particular to a dredging device for water conservancy projects. Background Technology

[0002] Siltation in water conservancy projects has increasingly affected the normal functioning of various functions such as flood control, drainage, irrigation, water supply, and navigation. In order to restore the normal function of river channels and promote the rapid and sustainable development of the economy and society, river dredging and desilting projects are carried out to make river channels deeper and wider and the water clearer.

[0003] When carrying out water dredging, water is sprayed through water guns to stir the bottom mud into mud slurry, forming a mud-water mixture of a certain concentration. The mud slurry is then sucked out by a mud pump on the other side and sent to the storage yard on the shore through pipelines. However, some silt is compacted, and the water guns cannot fully break up the mud and sand. Some mud lumps are too large to be sucked into the mud pump, which reduces the cleaning efficiency. In addition, the mud lumps are too large and can easily clog the pipeline.

[0004] Therefore, it is necessary to provide a new dredging device for water conservancy projects to solve the above problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a dredging device for water conservancy projects that can fully break up silt and accelerate the dredging efficiency.

[0006] To solve the above-mentioned technical problems, the dredging device for water conservancy projects provided by this utility model includes: a support column, a protective cover fixedly connected to the bottom end of the support column, and a sludge pump installed inside the protective cover; a support sleeve fixedly connected to the bottom end of the sludge pump; a fixing ring rotatably connected to the bottom end of the support sleeve, and a connecting ring fixedly connected to the top end of the fixing ring, the connecting ring engaging and rotatably connecting to the interior of the support sleeve; a frustum-shaped support frame fixedly connected to the bottom end of the fixing ring, and multiple stirring rods inclinedly installed inside the bottom end of the support frame; multiple nozzles inclinedly installed on the side wall of the support frame, the nozzles communicating with the interior of the fixing ring through connecting pipes.

[0007] Preferably, the support column is rotatably connected to the dredging vessel, and the two ends of the hydraulic rod are rotatably connected to the dredging vessel and the support column, respectively.

[0008] Preferably, a water pipe and a mud conveying pipe are installed inside the support column, and one end of the mud conveying pipe is connected to the mud suction pump; a high-pressure water pump is installed inside the dredging vessel, and the high-pressure water pump is connected to the water pipe.

[0009] Preferably, the sidewall of the protective cover is fixedly connected to a plurality of connecting rods, and the sidewall of the connecting rods is connected to the sludge pump and the support sleeve.

[0010] Preferably, the support sleeve has an annular storage groove inside, the height of the storage groove gradually decreases from one end of the support sleeve to the other end, the water pipe is tangentially connected to the side wall of the support sleeve, and the highest point of the storage groove is connected to the water pipe.

[0011] Preferably, a connecting bearing is installed at the connection between the connecting ring and the support sleeve, and the interior of the connecting ring is hollow funnel-shaped; the interior of the fixing ring is provided with a groove with a trapezoidal sidewall cross-section, the groove is connected to the storage tank through the connecting ring, and the connecting pipe is installed at the lowest point of the groove.

[0012] Preferably, sealing rings are installed at the connection between the connecting ring and the support sleeve, and at the connection between the support sleeve and the fixing ring, and the side wall cross-section of the sealing ring is trapezoidal.

[0013] Compared with related technologies, the dredging device for water conservancy projects provided by this utility model has the following beneficial effects:

[0014] This utility model provides a dredging device for water conservancy projects. When cleaning a silt layer, high-speed water sequentially passes through the water pipe, the support sleeve, the fixing ring, and the connecting pipe into the interior of the nozzle. The high-speed water is then sprayed out obliquely through the nozzle, which is obliquely mounted on the side wall of the support frame (as shown in the attached figure). Figure 5 As shown in the diagram, the water sprayed from the nozzle pushes the support frame to rotate continuously. During the process of water agitating the sludge, the continuously rotating support frame enters the interior of the sludge layer, breaking up the sludge and accelerating the breaking-up efficiency. Simultaneously, the support frame drives the stirring rod to rotate, further breaking up the sludge inside the support frame and mixing it with the water, reducing the volume of the mud lumps and facilitating the extraction of the sludge by the mud pump. The nozzle outlet is inclined inwards towards the support frame. When water is sprayed out through the nozzle and squeezes downwards against the sludge layer, the nozzle rotates continuously with the support frame, causing the water flow to enter the interior of the sludge layer and squeeze the sludge layer from different angles. The crushed sludge moves upwards towards the center of the support frame, and simultaneously, the operation of the mud pump generates suction inside the support frame (as shown in the diagram). Figure 6 As shown in the figure, this pushes the broken sludge into the interior of the support frame quickly, thus accelerating the efficiency of sludge removal. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the dredging device for water conservancy projects provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows an enlarged view of the structure at point A.

[0017] Figure 3 for Figure 2 The diagram shows the internal structure of the support sleeve.

[0018] Figure 4 for Figure 2 The top view of the internal structure of the support sleeve is shown.

[0019] Figure 5 for Figure 2 The top view of the support frame structure shown;

[0020] Figure 6 for Figure 2 The diagram shows a nozzle flushing a layer of silt.

[0021] Numbered in the diagram: 1. Dredging vessel, 2. Silt layer, 3. Support column, 31. Hydraulic rod, 4. Protective cover, 41. Connecting rod, 5. Mud suction pump, 51. Mud conveying pipe, 6. Water pipe, 7. Support sleeve, 71. Storage tank, 8. Fixing ring, 81. Groove, 82. Connecting ring, 83. Connecting bearing, 9. Nozzle, 91. Connecting pipe, 10. Support frame, 11. Sealing ring, 12. Mixing rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1 to 6 , Figure 1 A schematic diagram of a preferred embodiment of the dredging device for water conservancy projects provided by this utility model; Figure 2 for Figure 1 The diagram shows an enlarged view of the structure at point A. Figure 3 for Figure 2 The diagram shows the internal structure of the support sleeve. Figure 4 for Figure 2 The top view of the internal structure of the support sleeve is shown. Figure 5 for Figure 2 The top view of the support frame structure shown; Figure 6 for Figure 2 The diagram shows a spray nozzle flushing a layer of silt. The dredging device for hydraulic engineering includes: a support column 3, with a protective cover 4 fixedly connected to its bottom end; a sludge pump 5 is installed inside the protective cover 4; multiple connecting rods 41 are fixedly connected to the side walls of the protective cover 4, and the side walls of the connecting rods 41 connect the sludge pump 5 and the support sleeve 7; to facilitate the protection of the sludge pump 5 by the protective cover 4, and to increase the stability and robustness of the sludge pump 5 and the support sleeve 7, the connecting rods 41 are used.

[0024] The bottom end of the sludge pump 5 is fixedly connected to a support sleeve 7, the bottom end of the support sleeve 7 is rotatably connected to a fixing ring 8, and the top end of the fixing ring 8 is fixedly connected to a connecting ring 82. The connecting ring 82 engages and rotatably connects to the interior of the support sleeve 7. The bottom end of the fixing ring 8 is fixedly connected to a frustum-shaped support frame 10, and multiple stirring rods 12 are inclinedly installed inside the bottom end of the support frame 10. Multiple nozzles 9 are inclinedly installed on the side wall of the support frame 10, and the nozzles 9 are connected to the interior of the fixing ring 8 through a connecting pipe 91. When cleaning the sludge layer 2, high-speed water is sprayed out at an angle through the nozzles 9, which are inclinedly installed on the side wall of the support frame 10. The water sprayed from the nozzles 9 pushes the support frame 10 to rotate continuously. During the process of water stirring the sludge, the continuously rotating support frame 10... The water enters the interior of the sludge layer 2, breaking up the sludge and accelerating the breaking efficiency. Simultaneously, the support frame 10 drives the stirring rod 12 to rotate, further breaking up the sludge inside the support frame 10 and mixing it with water, reducing the volume of the mud lumps and facilitating the extraction of the sludge by the mud pump 5. The outlet of the nozzle 9 is inclined towards the interior of the support frame 10. When water is sprayed out through the nozzle 9 and squeezes downwards against the sludge layer, the nozzle 9 rotates continuously with the support frame 10, causing the water flow to rotate and enter the interior of the sludge layer 2, squeezing the sludge layer from different angles. The crushed sludge moves upwards towards the center of the support frame 10. Simultaneously, the operation of the mud pump 5 generates suction inside the support frame 10, thereby propelling the crushed sludge quickly into the interior of the support frame 10, accelerating the sludge removal efficiency.

[0025] The support sleeve 7 has an annular storage groove 71 inside. The water pipe 6 is tangentially connected to the side wall of the support sleeve 7, and the highest point of the storage groove 71 is connected to the water pipe 6. When water enters the storage groove 71 through the water pipe 7, the water rotates along the annular storage groove 71 and enters the highest point of the storage groove 71. The height of the storage groove 71 gradually decreases along one end of the support sleeve 7 towards the other end, causing the rotational movement along the storage groove 71 to move downward clockwise. The connecting ring 82 also rotates clockwise inside the storage groove 71, facilitating the flow of water through the storage groove 71 and the connecting ring 82 into the interior of the groove 81.

[0026] A connecting bearing 83 is installed at the connection between the connecting ring 82 and the support sleeve 7. To facilitate the rotation of the connecting ring 82 on the side wall of the support sleeve 7, the interior of the connecting ring 82 is hollow and funnel-shaped, allowing water inside the storage tank 71 to pass through the connecting ring 82. The interior of the fixing ring 8 is provided with a groove 81 with a trapezoidal side wall cross-section. The groove 81 is connected to the storage tank 71 through the connecting ring 82, and the connecting pipe 91 is installed at the lowest point of the groove 81, allowing water inside the storage tank 71 to enter the interior of the connecting pipe 91.

[0027] Sealing rings 11 are installed at the connection between the connecting ring 82 and the support sleeve 7, and at the connection between the support sleeve 7 and the fixing ring 8. The side wall cross section of the sealing ring 11 is trapezoidal. In order to increase the sealing performance of the connection by the sealing ring 11, water inside the support sleeve 7 is prevented from flowing out from the gap between the support sleeve 7 and the fixing ring 8.

[0028] The support column 3 is rotatably connected to the dredging vessel 1, and the two ends of the hydraulic rod 31 are rotatably connected to the dredging vessel 1 and the support column 3 respectively; a water pipe 6 and a mud conveying pipe 51 are installed inside the support column 3, and one end of the mud conveying pipe 51 is connected to the mud suction pump 5; a high-pressure water pump is installed inside the dredging vessel 1, and the high-pressure water pump is connected to the water pipe 6. In order to facilitate opening the hydraulic rod 31, the hydraulic rod 31 drives the support column 3 to rotate, so that the support frame 10 enters the interior of the silt layer 2.

[0029] The working principle of the dredging device for water conservancy projects provided by this utility model is as follows: a high-pressure water pump and a drive power supply are installed inside the dredging vessel 1. The wire connecting the drive power supply and the mud pump 5 is placed inside the support column 3, so the operation of the mud pump 5 can be controlled from the dredging vessel 1. When it is necessary to clean the silt layer 2, the hydraulic rod 31 is opened, which drives the support column 3 to rotate, allowing the support frame 10 to enter the interior of the silt layer 2. At the same time, the high-pressure water pump and the mud pump 5 are turned on, allowing the high-pressure water pump to draw water into the interior of the water pipe 6. The high-speed water flows sequentially through the water pipe 6, the support sleeve 7, the fixing ring 8, and the connecting pipe 91 into the interior of the nozzle 9. The high-speed water is sprayed out at an angle through the nozzle 9, which is installed at an angle on the side wall of the support frame 10. The water sprayed from the nozzle 9 pushes the support frame 10 to rotate continuously. The support frame 9 drives the fixing ring 8 and the connecting ring 82 to rotate. The connecting ring 82 rotates inside the support sleeve 7. At this time, the storage tank 71 and the groove 81 are in a connected state, which facilitates the continued flow of water into the interior of the connecting pipe 91, so that water is continuously sprayed out from the nozzle 9. During the process of water mixing with sludge, the continuously rotating support frame 10 enters the interior of the sludge layer 2, breaking up the sludge and accelerating the breaking efficiency. At the same time, the support frame 10 drives the stirring rod 12 to rotate, further breaking up the sludge inside the support frame 10 and mixing it with water, reducing the volume of the mud blocks, making it easier for the mud pump 5 to extract the sludge. The outlet of the nozzle 9 is inclined towards the interior of the support frame 10. When water is sprayed out through the nozzle 9 and squeezes the sludge layer downwards, the nozzle 9 rotates continuously with the support frame 10, and the water flow rotates into the interior of the sludge layer 2, squeezing the sludge layer from different angles. The squeezed and broken sludge moves upwards towards the center of the support frame 10. At the same time, when the mud pump 5 is running, the interior of the support frame 10 generates suction, thereby pushing the broken sludge quickly into the interior of the support frame 10. The mud pump 5 then transports the sludge to the designated location through the mud conveying pipe 51.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dredging device for hydraulic engineering, characterized in that, The utility model relates to a kind of dredging device, including: Support column (3), the bottom end of support column (3) is fixedly connected protective cover (4), the inside of protective cover (4) is installed suction dredge pump (5);The bottom end of suction dredge pump (5) is fixedly connected support sleeve (7); The bottom end of support sleeve (7) is rotatably connected fixed ring (8), the top end of fixed ring (8) is fixedly connected connecting ring (82), connecting ring (82) is engaged and rotatably connected the inside of support sleeve (7);The bottom end of fixed ring (8) is fixedly connected to support frame (10) of circular truncated cone, the inside of the bottom end of support frame (10) is obliquely installed multiple stirring rods (12);Multiple spray heads (9) are obliquely installed in the side wall of support frame (10), and the inside of fixed ring (8) is communicated with spray head (9) by connecting pipe (91).

2. The hydraulic dredging device of claim 1, wherein Support column (3) is rotatably connected between dredging vessel (1), and the two ends of hydraulic rod (31) are rotatably connected dredging vessel (1) and support column (3) respectively.

3. The hydraulic dredging device of claim 2, wherein Water pipe (6) and mud pipe (51) are installed in the inside of support column (3), one end of mud pipe (51) is connected suction dredge pump (5);High-pressure water pump is placed in the inside of dredging vessel (1), and high-pressure water pump is connected water pipe (6).

4. The hydraulic dredging device of claim 3, wherein Multiple connecting rods (41) are fixedly connected in the side wall of protective cover (4), and the side wall of connecting rod (41) is connected suction dredge pump (5) and support sleeve (7).

5. The hydraulic dredging device of claim 4, wherein Annular storage groove (71) is arranged in the inside of support sleeve (7), the height of storage groove (71) gradually decreases along one end of support sleeve (7) to the direction of the other end of support sleeve (7), water pipe (6) is tangentially connected with the side wall of support sleeve (7), and the highest point of storage groove (71) is communicated with water pipe (6).

6. The hydraulic dredging device of claim 5, wherein Connecting bearing (83) is installed at the connection of connecting ring (82) and support sleeve (7), the inside of connecting ring (82) is hollow funnel shape;Groove (81) with the side wall section of trapezoidal shape is arranged in the inside of fixed ring (8), the groove (81) is communicated with storage groove (71) through connecting ring (82), and the lowest point of groove (81) is installed connecting pipe (91).

7. The hydraulic dredging device of claim 1, wherein Sealing ring (11) is installed at the connection of connecting ring (82) and support sleeve (7) and the connection of support sleeve (7) and fixed ring (8), and the side wall section of sealing ring (11) is trapezoidal shape.

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