A dredging device for river construction

Abstract

The utility model discloses a kind of dredging devices for river construction, it is related to dredging device technical field, including ship body, the front side of the ship body is fixedly connected with connecting frame, the front side of the connecting frame is fixedly connected with fixed plate, the upside of the ship body is fixedly connected with sludge pump, the output end of the sludge pump is fixedly connected with feed pipe, the upside of the ship body is fixedly connected with fixed tank, the outer wall of the feed pipe is fixedly connected with fixed tank, the outer wall lower end of the fixed tank is equipped with a plurality of drainage holes. The utility model through the cooperation of fixed seat, pivot, stirring blade, drive shaft, limit strip, limit slot, connecting plate and limit post, can carry out pre-stirring to the silt of river channel, pre-stirring is agitated into loose state by mechanical force to the silt of hardening or consolidation, significantly reduce its viscosity, make it more easily to be sucked, the silt after stirring is mixed with water to form slurry, fluidity is enhanced, it is convenient to be transported by pipeline or pump body long distance, reduce the risk of blockage.

Description

Technical Field

[0001] This utility model relates to the technical field of dredging devices, specifically to a dredging device for river construction. Background Technology

[0002] During long-term use of a river, water flow carries sediment and other materials that are deposited on the riverbed. This silt gradually accumulates, causing the riverbed to rise. Dredging equipment can penetrate deep into the riverbed to remove the silt. Using dredging equipment can effectively remove this silt, restore the original depth of the river, and ensure the river's water carrying capacity.

[0003] The existing technology has the following problems:

[0004] Existing equipment cannot pre-mix river silt during use. Unmixed silt is usually highly viscous and tightly bound, resulting in poor flowability when directly pumped, which can easily lead to pipe blockage or insufficient suction power, resulting in low dredging efficiency. Directly pumping unmixed silt requires more power and more frequent operation. In addition, existing equipment cannot dewater the pumped sludge. Undewatered sludge has an extremely high water content and is bulky, requiring a large number of vehicles and frequent trips for transportation, which leads to a significant increase in fuel, labor and time costs. Utility Model Content

[0005] This utility model provides a dredging device for river construction to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A dredging device for river construction includes a hull, a connecting frame fixedly connected to the front side of the hull, a fixing plate fixedly connected to the front side of the connecting frame, a sludge pump fixedly connected to the upper side of the hull, a feed pipe fixedly connected to the output end of the sludge pump, a fixed tank fixedly connected to the upper side of the hull, the outer wall of the feed pipe fixedly connected to the fixed tank, and a plurality of drainage holes opened at the lower end of the outer wall of the fixed tank.

[0008] A further improvement of the present invention is that: a first motor is fixedly connected to the left side of the fixed plate, a fixed seat is fixedly connected to the left side of the inner surface of the fixed plate, a rotating shaft is rotatably connected to the right side of the fixed seat, and a plurality of stirring blades are fixedly connected to the outer wall of the rotating shaft.

[0009] A further improvement of the present invention is that: a drive shaft is fixedly connected to the output end of the first motor, a plurality of limiting strips are fixedly connected to the outer wall of the drive shaft, the outer wall of the limiting strips is slidably connected to the rotating shaft, a ring is fixedly connected to the inner surface of the fixed seat, an inclined surface is provided on the right side of the ring, a limiting groove is provided on the inclined surface of the ring, and a connecting plate is fixedly connected to the outer wall of the rotating shaft.

[0010] A further improvement of the present invention is that: a limiting post is fixedly connected to the left side of the connecting plate, the outer wall of the limiting post is slidably connected to the limiting groove, and the outer wall of the drive shaft is rotatably connected to the fixed seat.

[0011] A further improvement of this utility model is that: a second motor is fixedly connected to the outer wall of the fixed tank, a bevel gear is fixedly connected to the output shaft of the second motor, a bevel gear ring is meshed with the outer wall of the bevel gear, a turntable is fixedly connected to the lower side of the bevel gear ring, and a dehydration tank is fixedly connected to the inner surface of the turntable.

[0012] A further improvement of this utility model is that: the outer wall of the dehydration tank is provided with two filter plates, the outer wall of the fixed tank is fixedly connected with a drain pipe, the outer wall of the drain pipe is rotatably connected to the dehydration tank, the outer wall of the feed pipe is rotatably connected to the dehydration tank, and the outer wall of the turntable is rotatably connected to the fixed tank.

[0013] A further improvement of this utility model is that a third motor is fixedly connected to the outer wall of the sewage pipe, and a screw rod is fixedly connected to the output end of the third motor. The outer wall of the screw rod is rotatably connected to the sewage pipe.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a dredging device for river construction. Through the cooperation of a fixed base, rotating shaft, stirring blade, drive shaft, limiting strip, limiting groove, connecting plate and limiting column, it can pre-stir the silt in the river. The pre-stirring uses mechanical force to stir the hardened or solidified silt into a loose state, significantly reducing its viscosity and making it easier to be pumped. The stirred silt is mixed with water to form mud, which has enhanced fluidity and is easy to transport over long distances through pipelines or pumps, reducing the risk of blockage.

[0016] 2. This utility model provides a dredging device for river construction. Through the cooperation of bevel gears, bevel gear rings, turntables, filter plates, sewage pipes, third motors, screw rods, connecting frames and feed pipes, it can dewater the pumped sludge. After dewatering, the sludge occupies less space, the disposal cost is significantly reduced, and long-distance transportation is safer and the risk of leakage is reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixing base of this utility model;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the fixed tank of this utility model;

[0021] Figure 5 This is a schematic diagram of the sewage pipe structure of this utility model.

[0022] In the diagram: 1. Hull; 2. Fixing plate; 3. First motor; 4. Fixing base; 5. Rotating shaft; 6. Agitator blade; 7. Sludge pump; 8. Fixing tank; 9. Drain hole; 10. Drive shaft; 11. Limiting strip; 12. Limiting groove; 13. Connecting plate; 14. Limiting post; 15. Second motor; 16. Bevel gear; 17. Bevel gear ring; 18. Turntable; 19. Filter plate; 20. Sewage pipe; 21. Third motor; 22. Screw rod; 23. Connecting frame; 24. Feed pipe; 25. Ring; 26. Dewatering tank. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a dredging device for river construction, including a hull 1. A connecting frame 23 is fixedly connected to the front of the hull 1, and a fixing plate 2 is fixedly connected to the front of the connecting frame 23. A sludge pump 7 is fixedly connected to the upper side of the hull 1, and a feed pipe 24 is fixedly connected to the output end of the sludge pump 7. A fixed tank 8 is fixedly connected to the upper side of the hull 1. The outer wall of the feed pipe 24 is fixedly connected to the fixed tank 8. Several drainage holes 9 are opened at the lower end of the outer wall of the fixed tank 8. The dredging device for river construction uses the hull 1 as the base for movement and installation. The fixing plate 2 is fixed to the front of the hull 1 by the connecting frame 23 for installing the mixing mechanism. The sludge pump 7 on the upper side of the hull 1 serves as the power source. The mixed sludge is transported to the fixed tank 8 through the feed pipe 24. The drainage holes 9 at the lower end of the outer wall of the fixed tank 8 are used to discharge the water separated during the dewatering process, realizing the initial solid-liquid separation preparation. The whole device forms a dredging operation process framework of "mixing-suction-dewatering".

[0025] like Figure 2-3As shown, this utility model provides a technical solution: Preferably, a first motor 3 is fixedly connected to the left side of the fixed plate 2, a fixed seat 4 is fixedly connected to the left side of the inner surface of the fixed plate 2, a rotating shaft 5 is rotatably connected to the right side of the fixed seat 4, a plurality of stirring blades 6 are fixedly connected to the outer wall of the rotating shaft 5, a drive shaft 10 is fixedly connected to the output end of the first motor 3, a plurality of limiting strips 11 are fixedly connected to the outer wall of the drive shaft 10, the outer wall of the limiting strips 11 is slidably connected to the rotating shaft 5, a ring 25 is fixedly connected to the inner surface of the fixed seat 4, an inclined surface is provided on the right side of the ring 25, a limiting groove 12 is provided on the inclined surface of the ring 25, a connecting plate 13 is fixedly connected to the outer wall of the rotating shaft 5, a limiting post 14 is fixedly connected to the left side of the connecting plate 13, and the outer wall of the limiting post 14 slides with the limiting groove 12. The drive shaft 10 is rotatably connected to the fixed base 4. The first motor 3 on the left side of the fixed plate 2 drives the drive shaft 10 to rotate. The limiting strip 11 on the outer wall of the drive shaft 10 is slidably connected to the rotating shaft 5, thereby driving the rotating shaft 5 and the stirring blades 6 on the outer wall to rotate, stirring the river silt. At the same time, when the rotating shaft 5 rotates, the connecting plate 13 on its outer wall drives the limiting column 14 to slide in the limiting groove 12 of the inner ring 25 of the fixed base 4. Since the right side of the ring 25 is an inclined surface, the trajectory of the limiting groove 12 guides the limiting column 14 to make axial reciprocating motion, thereby enabling the rotating shaft 5 to move up and down while rotating. This composite motion of "rotation + axial movement" allows the stirring blades 6 to stir the silt more fully, break the hardened state, enhance the mixing effect of silt and water, and provide convenience for subsequent pumping.

[0026] like Figure 4-5As shown, this utility model provides a technical solution: Preferably, a second motor 15 is fixedly connected to the outer wall of the fixed tank 8, a bevel gear 16 is fixedly connected to the output shaft of the second motor 15, a bevel gear ring 17 is meshed with the outer wall of the bevel gear 16, a turntable 18 is fixedly connected to the lower side of the bevel gear ring 17, a dehydration tank 26 is fixedly connected to the inner surface of the turntable 18, two filter plates 19 are provided on the outer wall of the dehydration tank 26, a drain pipe 20 is fixedly connected to the outer wall of the fixed tank 8, the outer wall of the drain pipe 20 is rotatably connected to the dehydration tank 26, the outer wall of the feed pipe 24 is rotatably connected to the dehydration tank 26, the outer wall of the turntable 18 is rotatably connected to the fixed tank 8, a third motor 21 is fixedly connected to the outer wall of the drain pipe 20, and the output end of the third motor 21 is fixedly connected to... A screw rod 22 is connected to the outer wall of the sludge pump 7, which is rotatably connected to the sewage pipe 20. The sludge pump 7 sends the sludge into the dewatering tank 26 through the feed pipe 24. The second motor 15 drives the bevel gear 16 to rotate, which drives the turntable 18 and the dewatering tank 26 to rotate through meshing with the bevel gear ring 17. Under the action of centrifugal force, the water in the sludge passes through the filter plate 19 on the outer wall of the dewatering tank 26 into the fixed tank 8 and is discharged from the drain hole 9, thus achieving dewatering. The dewatered sludge remains in the dewatering tank 26. The third motor 21 drives the screw rod 22 in the sewage pipe 20 to rotate, and the dewatered sludge is spirally conveyed to the outside. The whole process reduces the water content of the sludge through centrifugal dewatering and then achieves efficient discharge of sludge through spiral conveying, reducing subsequent disposal and transportation costs.

[0027] The working principle of the dredging device used in the river construction will be explained in detail below.

[0028] like Figure 1-5As shown, the first motor 3 on the left side of the fixed plate 2 drives the drive shaft 10 to rotate. The limiting strip 11 on the outer wall of the drive shaft 10 is slidably connected to the rotating shaft 5, thereby driving the rotating shaft 5 and the stirring blades 6 on the outer wall to rotate, stirring the river silt. At the same time, when the rotating shaft 5 rotates, the connecting plate 13 on its outer wall drives the limiting post 14 to slide in the limiting groove 12 of the inner ring 25 of the fixed seat 4. Since the right side of the ring 25 is inclined, the trajectory of the limiting groove 12 guides the limiting post 14 to make axial reciprocating motion, thereby enabling the rotating shaft 5 to move up and down while rotating. This composite motion of "rotation + axial movement" allows the stirring blades 6 to stir the silt more fully, break the slab state, and enhance the mixing effect of silt and water. To facilitate subsequent suction, sludge pump 7 feeds sludge into dewatering tank 26 through feed pipe 24. Second motor 15 drives bevel gear 16 to rotate, which in turn drives turntable 18 and dewatering tank 26 to rotate through meshing with bevel gear ring 17. Under centrifugal force, water in the sludge passes through filter plate 19 on the outer wall of dewatering tank 26 into fixed tank 8 and is discharged from drain hole 9, thus achieving dewatering. The dewatered sludge remains in dewatering tank 26. Third motor 21 drives screw rod 22 in drain pipe 20 to rotate, conveying the dewatered sludge to the outside through screw conveying. The whole process reduces the water content of sludge through centrifugal dewatering and then achieves efficient discharge of sludge through screw conveying, reducing subsequent disposal and transportation costs.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A dredging device for river construction, characterized in that: The vessel includes a hull (1), a connecting frame (23) is fixedly connected to the front side of the hull (1), a fixing plate (2) is fixedly connected to the front side of the connecting frame (23), a sludge pump (7) is fixedly connected to the upper side of the hull (1), a feed pipe (24) is fixedly connected to the output end of the sludge pump (7), a fixed tank (8) is fixedly connected to the upper side of the hull (1), the outer wall of the feed pipe (24) is fixedly connected to the fixed tank (8), and several drainage holes (9) are opened at the lower end of the outer wall of the fixed tank (8).

2. The dredging device for river construction according to claim 1, characterized in that: The left side of the fixed plate (2) is fixedly connected to the first motor (3), the left side of the inner surface of the fixed plate (2) is fixedly connected to the fixed seat (4), the right side of the fixed seat (4) is rotatably connected to the rotating shaft (5), and the outer wall of the rotating shaft (5) is fixedly connected to multiple stirring blades (6).

3. A dredging device for river construction according to claim 2, characterized in that: The output end of the first motor (3) is fixedly connected to a drive shaft (10). The outer wall of the drive shaft (10) is fixedly connected to a plurality of limiting strips (11). The outer wall of the limiting strips (11) is slidably connected to the rotating shaft (5). The inner surface of the fixed seat (4) is fixedly connected to a ring (25). The right side of the ring (25) is provided with an inclined surface. The inclined surface of the ring (25) is provided with a limiting groove (12). The outer wall of the rotating shaft (5) is fixedly connected to a connecting plate (13).

4. A dredging device for river construction according to claim 3, characterized in that: A limiting post (14) is fixedly connected to the left side of the connecting plate (13). The outer wall of the limiting post (14) is slidably connected to the limiting groove (12). The outer wall of the drive shaft (10) is rotatably connected to the fixed seat (4).

5. A dredging device for river construction according to claim 1, characterized in that: A second motor (15) is fixedly connected to the outer wall of the fixed tank (8). A bevel gear (16) is fixedly connected to the output shaft of the second motor (15). A bevel gear ring (17) is meshed with the outer wall of the bevel gear (16). A turntable (18) is fixedly connected to the lower side of the bevel gear ring (17). A dehydration tank (26) is fixedly connected to the inner surface of the turntable (18).

6. A dredging device for river construction according to claim 5, characterized in that: The outer wall of the dehydration tank (26) is provided with two filter plates (19). The outer wall of the fixed tank (8) is fixedly connected with a drain pipe (20). The outer wall of the drain pipe (20) is rotatably connected to the dehydration tank (26). The outer wall of the feed pipe (24) is rotatably connected to the dehydration tank (26). The outer wall of the turntable (18) is rotatably connected to the fixed tank (8).

7. A dredging device for river construction according to claim 6, characterized in that: A third motor (21) is fixedly connected to the outer wall of the sewage pipe (20), and a screw rod (22) is fixedly connected to the output end of the third motor (21). The outer wall of the screw rod (22) is rotatably connected to the sewage pipe (20).

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