Dredging device for water conservancy project

Abstract

The utility model discloses a desilting device for hydraulic engineering, which relates to the technical field of channel desilting and comprises a trolley, a desilting mechanism arranged on the front side of the trolley and a separating mechanism arranged on the rear side of the trolley and used for separating water and sludge. The dredging mechanism comprises a bucket arranged in the notch, a mud pumping cylinder fixedly mounted at the top of the bucket, a driving assembly for driving the bucket to move up and down, and a stirring assembly arranged in the mud pumping cylinder; and the separation mechanism comprises a mud storage box fixedly mounted on the rear side of the trolley. According to the desilting device for the water conservancy project, through the combination of the bucket and the stirring rod, sludge can be effectively smashed, it can be guaranteed that the sludge and water are fully mixed, a cement mixture easy to convey is formed, the separation function of the separation tank is achieved, the silt separation efficiency is further improved, the desilting efficiency is improved, and the desilting effect is good. And the recycling of resources is also realized.

Description

Technical Field

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

[0002] Channel dredging plays a crucial role in the maintenance of water conservancy projects. Its main function is to restore and maintain the water conveyance capacity of the channels, ensuring that water resources can be efficiently and stably delivered to various water-using nodes. It is of great significance for ensuring agricultural irrigation, urban water supply, flood control and drainage, and many other aspects.

[0003] Chinese Utility Model Patent Application No. CN202420035097.9 discloses a channel dredging device for water conservancy projects. The device includes a vehicle body with movable rods movably embedded on both sides of its bottom. Two movable rods are fixedly mounted on their outer sides. A gantry frame is fixedly mounted on the rear top of the vehicle body near the left end. A first rotating shaft is movably embedded at the center of the top of the gantry frame, and a crank handle is fixedly mounted on the top of the first rotating shaft. This channel dredging device for water conservancy projects has several drawbacks. When storing silt in a storage tank, the high water content of the silt significantly reduces the storage capacity of the tank. Furthermore, when the water in the storage tank flows back into the channel, due to the lack of a filtration device, this water is quite turbid and contains a large amount of silt. This silt will redeposit, causing the channel to become blocked again in a short time, affecting the normal use of the channel.

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

[0005] Technical problem to be solved: The purpose of this utility model is to provide a dredging device for water conservancy projects, in order to solve the problems mentioned in the background art of existing dredging devices for water conservancy projects. When using storage tanks to store silt, the water content in the silt is high, which greatly reduces the storage capacity of the storage tanks. In addition, when the water in the storage tank flows back into the canal, due to the lack of a filtration device, this part of the water is relatively turbid and contains a lot of silt. This silt will be deposited again, causing the canal to be blocked again in a short period of time, affecting the normal use of the canal.

[0006] Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: A dredging device for water conservancy projects, comprising a wheelbarrow, a dredging mechanism located at the front of the wheelbarrow, and a separation mechanism located at the rear of the wheelbarrow for separating water and sludge. The wheelbarrow's bottom plate has a slot. The dredging mechanism includes a bucket located within the slot, a sludge suction cylinder fixedly installed on top of the bucket, a drive assembly for moving the bucket up and down, and a stirring assembly located within the sludge suction cylinder. The separation mechanism includes a sludge storage box fixedly installed at the rear of the wheelbarrow, a separation tank fixedly installed within the sludge storage box, and an elastic pushing assembly located on the separation tank. The separation tank is a rotating structure with a cylindrical upper part and a conical lower part. The separator has a drain outlet at the top, a water inlet along its tangential direction in the middle, and a discharge outlet at the bottom. The input end of the sludge pump is connected to the inside of the sludge pumping cylinder, and the output end is connected to the water inlet of the separator. The input end of the drain outlet of the separator is equipped with a filter assembly, and the output end is fixedly installed with a connecting pipe II, the lower end of which passes through the bottom plate of the trolley. Spiral baffles are evenly arranged along the circumference inside the conical section of the separator. A sealing plug is installed inside the discharge outlet of the separator, and an elastic pusher assembly pushes the sealing plug to make it tightly contact with the discharge outlet of the separator. An auger is concentrically rotatably installed on the top of the sealing plug. Screen holes are evenly opened on the spiral blades of the auger. A drive motor is fixedly installed at the bottom of the sealing plug, and the drive motor is connected to the auger.

[0007] Preferably, the drive assembly includes a U-shaped frame fixedly installed on the left and right sides of the slot, a screw rotatably installed on one of the U-shaped frames, and a crank fixedly installed on the upper end of the screw. Each of the two vertical inner sides of the two U-shaped frames has a vertically opened groove, and a slider is slidably installed in the groove. A movable plate is provided above the bucket, and a fixed rod connecting the two is fixedly installed between the bucket and the movable plate. The movable plate is threadedly connected to the screw, and both ends of the movable plate extend into the two U-shaped frames respectively and are fixedly connected to the sliders on the adjacent sides.

[0008] Preferably, a connecting pipe I is fixedly installed inside the inlet of the separator tank, the other end of the connecting pipe I is connected to the output end of the sludge pump, and a sludge pumping pipe is fixedly installed at the input end of the sludge pump, the other end of the sludge pumping pipe is connected to the sludge pumping cylinder.

[0009] Preferably, the mixing assembly includes a waterproof motor concentrically fixed inside the sludge pumping cylinder. Multiple connecting rods are uniformly fixedly installed around the periphery of the waterproof motor, and the other ends of the multiple connecting rods are fixedly connected to the sludge pumping cylinder. The output shaft of the waterproof motor extends downward into the bucket and is fixedly installed with a fixed base. Multiple mixing rods are uniformly fixedly installed around the periphery of the fixed base.

[0010] Preferably, the filtration assembly includes filter plate I and filter plate II, which are fixedly installed vertically at intervals within the separation tank, and fiber ball filter media disposed between the two filter plates, with the two filter plates positioned between the inlet and outlet of the separation tank.

[0011] Preferably, a turbine is fixedly fitted at the top of the auger's shaft.

[0012] Beneficial Effects: Compared with the prior art, this utility model provides a dredging device for water conservancy projects. This dredging device has a unique structure and is easy to use. During operation, the device is moved to the top of the water channel, and the crank is turned to drive the screw to rotate, causing the moving plate to move downwards. This causes the bucket to be immersed in the water and touch the bottom of the water channel. The mud pump, waterproof motor, and drive motor are started. The mud pump draws water through the mud pumping cylinder, and the waterproof motor drives the stirring rod to rotate, pushing the device to move. The bucket scoops in the silt, and the stirring rod breaks up the silt to form a cement mixture, preventing the mud pump from clogging. The cement mixture enters the separation tank through the pipeline. Because the water inlet is set tangentially, the mixture forms a vortex in the tank. Under the action of centrifugal force, the heavier substances move along the inner wall and accumulate at the bottom. The auger transports the sediment downwards. Through the screen holes, sealing plugs, and tension springs, the sediment is compressed and drained. Finally, the dehydrated sediment is discharged, and the upper clear water is filtered through fiber ball filter media and flows back to the water channel through the connecting pipe, reducing water loss. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the structure of Embodiment 1 of this utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram of the mud suction cylinder structure of this utility model;

[0015] Figure 3 This is a cross-sectional schematic diagram of the separation tank structure of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure in area A.

[0017] In the diagram: 1. Trolley; 2. Dredging mechanism; 21. Bucket; 22. U-shaped frame; 23. Screw; 24. Handle; 25. Moving plate; 26. Mud pump; 27. Mud suction cylinder; 28. Waterproof motor; 29. ​​Stirring rod; 210. Fixing rod; 211. Mud suction pipe; 3. Separation mechanism; 31. Mud storage tank; 32. Separation tank; 33. Connecting pipe I; 34. Connecting pipe II; 35. Filter plate I; 36. Filter plate II; 37. Fiber ball filter media; 38. Spiral baffle; 39. Fixing ring; 310. Sealing plug; 311. Slide rod; 312. Fixing plate; 313. Tension spring; 314. Drive motor; 315. Screw; 316. Turbine. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Example 1: This Example 1 provides a dredging device for water conservancy projects. It is a direct improvement on existing channel dredging devices and has a unique structure. Please refer to [link / reference]. Figure 1-4 As shown, the device includes a trolley 1, a sludge removal mechanism 2 located at the front of the trolley 1, and a separation mechanism 3 located at the rear of the trolley 1 for separating water and sludge. The bottom plate of the trolley 1 has a slot. The sludge removal mechanism 2 includes a bucket 21 located in the slot, a sludge suction cylinder 27 fixedly installed on the top of the bucket 21, a drive assembly for driving the bucket 21 to move up and down, and a stirring assembly located in the sludge suction cylinder 27.

[0020] The drive assembly includes a U-shaped frame 22 fixedly installed on the left and right sides of the slot, a screw 23 rotatably installed on one of the U-shaped frames 22, and a crank 24 fixedly installed on the upper end of the screw 23. The two vertical inner sides of the two U-shaped frames 22 are provided with vertical grooves, and sliders are slidably installed in the grooves. A movable plate 25 is provided above the bucket 21. A fixed rod 210 is fixedly installed between the bucket 21 and the movable plate 25 to connect the two. The movable plate 25 is threadedly connected to the screw 23, and both ends of the movable plate 25 extend into the two U-shaped frames 22 respectively and are fixedly connected to the sliders on the adjacent sides.

[0021] There are several ways to install the U-shaped frame 22, such as fixing it to both sides of the slot by welding or bolting to ensure its stability. There are also several ways to install the screw 23, such as having a through hole at the top of one of the U-shaped frames 22 with a bearing inside, and the screw 23 being rotated and fitted into the through hole via the bearing. The lower end of the screw 23 is also rotatably connected to the base plate of the trolley 1 via a bearing. There are also several ways to connect the moving plate 25 and the screw 23 by thread, such as having a threaded hole on the moving plate 25, and the screw 23 being threadedly fitted into the threaded hole.

[0022] The mixing assembly includes a waterproof motor 28 concentrically fixed inside the sludge pump 27. The waterproof motor 28 can be installed in various ways, such as: multiple connecting rods are evenly fixedly installed around the periphery of the waterproof motor 28, and the other ends of the multiple connecting rods are fixedly connected to the sludge pump 27. The output shaft of the waterproof motor 28 extends downward into the bucket 21 and is fixedly installed with a fixed base. Multiple mixing rods 29 are evenly fixedly installed around the periphery of the fixed base.

[0023] The separation mechanism 3 includes a sludge storage box 31 fixedly installed on the rear side of the trolley 1, a separation tank 32 fixedly installed inside the sludge storage box 31, and an elastic pusher assembly installed in the separation tank 32. The separation tank 32 is a rotating body with a cylindrical upper part and a conical lower part. The top of the separation tank 32 is provided with a drain outlet, the middle part is provided with a water inlet along its tangential direction, and the bottom part is provided with a discharge outlet. The input end of the sludge pump 26 is connected to the inside of the sludge pumping cylinder 27, and the output end is connected to the water inlet of the separation tank 32. The input end of the drain outlet of the separation tank 32 is provided with a filter assembly, and the output end is fixedly installed with a connecting pipe II 34. The lower end of the connecting pipe II 34 penetrates the bottom plate of the trolley 1.

[0024] Spiral baffles 38 are evenly arranged along the circumference of the conical section of the separator 32. A sealing plug 310 is installed in the discharge port of the separator 32. The elastic pusher assembly pushes the sealing plug 310 to make it tightly contact with the discharge port of the separator 32. An auger 315 is concentrically rotatably installed on the top of the sealing plug 310. Screen holes are evenly opened on the spiral blades of the auger 315. A drive motor 314 is fixedly installed at the bottom of the sealing plug 310. The drive motor 314 is connected to the auger 315 through a transmission. There are various transmission connection methods. For example, the sealing plug 310 has a through hole. The lower end of the rotating shaft of the auger 315 passes through the through hole and is fixedly connected to the output shaft of the drive motor 314 through a coupling. A sealing sleeve is provided in the gap between the rotating shaft of the auger 315 and the through hole.

[0025] A connecting pipe I 33 is fixedly installed inside the inlet of the separator 32. The other end of the connecting pipe I 33 is connected to the output end of the sludge pump 26. A sludge pumping pipe 211 is fixedly installed at the input end of the sludge pump 26. The other end of the sludge pumping pipe 211 is connected to the sludge pumping cylinder 27. The connecting pipe I 33 is a flexible hose and is long enough. The sludge pump 26, the waterproof motor 28, and the drive motor 314 are all electrically connected to an external power source. The filter assembly includes filter plates I 35 and II 36, which are fixedly installed vertically at intervals inside the separator 32, and fiber ball filter media 37, which is disposed between the two filter plates. The two filter plates are disposed between the inlet and outlet of the separator 32.

[0026] The elastic pusher assembly includes a fixing ring 39 fixedly fitted on the lower end of the separator tank 32 and the outside of the sealing plug 310. The lower fixing ring 39 has multiple through holes evenly opened along its circumference. A slide rod 311 is slidably fitted inside the through holes. The upper end of the slide rod 311 is fixedly connected to the upper fixing ring 39. The lower end of the slide rod 311 extends out of the through hole and is fixedly installed with a fixing plate 312. A tension spring 313 is fitted on the slide rod 311 between the two fixing rings 39. The two ends of the tension spring 313 are fixedly connected to the two fixing rings 39 respectively.

[0027] Working principle: When the operator uses the device, first move the device to the top of the water channel, then turn the crank 24. The crank 24 drives the screw 23 to rotate, and through the threaded connection, drives the moving plate 25 to move downward, thereby driving the bucket 21 to move downward until the bucket 21 is immersed in the water and touches the inner bottom surface of the water channel. At this time, the mud pump 26, the waterproof motor 28 and the drive motor 314 are started. The mud pump 26 pumps water out of the water channel through the mud pumping cylinder 27. During this process, the waterproof motor 28 drives the stirring rod 29 to rotate at high speed.

[0028] The device is moved along the canal. During the movement of the dredging device, the bucket 21 can scoop the silt at the bottom of the canal into its interior. After the silt enters the bucket 21, it will be broken up by the high-speed rotating stirring rod 29 and form a cement mixture under the impact of the water flow. This prevents the sludge pump 26 from being blocked by silt during the dredging process. The cement mixture is transported to the separation tank 32 through the sludge suction pipe 211 and the connecting pipe I 33. Since the water inlet of the separation tank 32 is set along its tangential direction, a vortex will be formed when the cement mixture enters the separation tank 32.

[0029] Under the action of centrifugal force, the heavier substances move along the inner wall of the separator 32 and accumulate at the bottom of the separator 32 under the action of the spiral baffle 38. At this time, the auger 315 continuously conveys the sediment downwards. Since the spiral blades of the auger 315 are provided with sieve holes and the tension spring 313 pulls the sealing plug 310 to block the discharge port, the sediment will be continuously compressed, causing the water in the sediment to be discharged until the pressure at the discharge port output end is greater than the tension of the tension spring 313. The dehydrated sediment is discharged from the gap between the discharge port and the sealing plug 310. As the water level rises, the upper layer of clear water flows into the connecting pipe II 34 through the fiber ball filter media 37 and then flows back into the water channel, thereby reducing the loss of water resources during the dredging process.

[0030] Example 2: The difference between Example 2 and Example 1 is as follows: Figure 3 As shown, a turbine 316 is fixedly mounted on the upper end of the shaft of the auger 315. The turbine 316 rotates in the same direction as the vortex, thereby further enhancing the rotational speed of the vortex.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dredging device for water conservancy projects, comprising a wheelbarrow (1), characterized in that: It also includes a sludge removal mechanism (2) located on the front side of the trolley (1) and a separation mechanism (3) located on the rear side of the trolley (1) for separating water and sludge. The trolley (1) has a slot on its bottom plate. The sludge removal mechanism (2) includes a bucket (21) located in the slot, a sludge pumping cylinder (27) fixedly installed on the top of the bucket (21), a drive assembly for moving the bucket (21) up and down, and a stirring assembly located in the sludge pumping cylinder (27). The separation mechanism (3) includes a sludge storage box (31) fixedly installed on the rear side of the trolley (1), a separation tank (32) fixedly installed in the sludge storage box (31), and an elastic pusher assembly located on the separation tank (32). The separation tank (32) is a rotating body with a cylindrical upper part and a conical lower part. The top of the separation tank (32) has a drain outlet, the middle part has a water inlet along its tangent direction, and the bottom part has a discharge outlet. The input end of the sludge pump (26) is connected to the inside of the sludge pump cylinder (27), and the output end is connected to the inlet of the separator (32). The input end of the drain outlet of the separator (32) is equipped with a filter assembly, and the output end is fixedly installed with a connecting pipe II (34). The lower end of the connecting pipe II (34) passes through the bottom plate of the trolley (1). The conical section of the separator (32) is uniformly provided with spiral baffles (38) along the circumference. The discharge port of the separator (32) is matched with a sealing plug (310). The elastic push assembly pushes the sealing plug (310) and it is in close contact with the discharge port of the separator (32). The top of the sealing plug (310) is concentrically rotated with an auger (315). The spiral blades of the auger (315) are uniformly provided with screen holes. The bottom of the sealing plug (310) is fixedly installed with a drive motor (314). The drive motor (314) is connected to the auger (315) in a transmission connection.

2. The dredging device for water conservancy projects according to claim 1, characterized in that: The drive assembly includes a U-shaped frame (22) fixedly installed on the left and right sides of the slot, a screw (23) rotatably installed on one of the U-shaped frames (22), and a crank (24) fixedly installed on the upper end of the screw (23). The two vertical inner sides of the two U-shaped frames (22) are provided with vertical grooves, and sliders are slidably installed in the grooves. A movable plate is provided above the bucket (21). A fixed rod (210) connecting the bucket (21) and the movable plate (25) is fixedly installed between them. The movable plate (25) is threadedly connected to the screw (23), and both ends of the movable plate (25) extend into the two U-shaped frames (22) respectively and are fixedly connected to the sliders on the adjacent sides.

3. The dredging device for water conservancy projects according to claim 1, characterized in that: A connecting pipe I (33) is fixedly installed inside the inlet of the separation tank (32). The other end of the connecting pipe I (33) is connected to the output end of the mud pump (26). A mud pumping pipe (211) is fixedly installed at the input end of the mud pump (26). The other end of the mud pumping pipe (211) is connected to the mud pumping cylinder (27).

4. A dredging device for water conservancy projects according to claim 1, characterized in that: The mixing assembly includes a waterproof motor (28) concentrically fixed inside the mud pumping cylinder (27). Multiple connecting rods are uniformly fixedly installed around the periphery of the waterproof motor (28), and the other ends of the multiple connecting rods are fixedly connected to the mud pumping cylinder (27). The output shaft of the waterproof motor (28) extends downward into the bucket (21) and is fixedly installed with a fixed seat. Multiple mixing rods (29) are uniformly fixedly installed around the periphery of the fixed seat.

5. A dredging device for water conservancy projects according to claim 1, characterized in that: The filter assembly includes filter plate I (35) and filter plate II (36) fixedly installed vertically at intervals in the separation tank (32), and fiber ball filter media (37) disposed between the two filter plates, with the two filter plates disposed between the inlet and outlet of the separation tank (32).

6. A dredging device for water conservancy projects according to claim 1, characterized in that: The turbine (316) is fixedly mounted on the top of the shaft of the auger (315).

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