Sludge solidification device for ecological dredging of rivers and lakes

Abstract

The invention relates to a river and lake ecological desilting and sludge solidifying device which comprises a desilting ship, a sludge separating mechanism, a sludge conveying mechanism and a sludge drying mechanism. The sludge separation mechanism comprises a filter barrel used for receiving sludge sucked out by the dredging ship and a vibrating screen arranged in the filter barrel and used for filtering garbage such as stones in the sludge, and a power assembly used for driving the vibrating screen to swing is arranged in the filter barrel; the sludge conveying mechanism is used for conveying sludge in the filtering barrel to the sludge drying mechanism, and the sludge conveying mechanism comprises a conveying barrel and a driving part which is arranged in the conveying barrel and used for conveying the sludge to move; the sludge drying mechanism comprises a drying barrel and a heating wire arranged in the drying barrel, one side of the conveying barrel communicates with the drying barrel, the other side of the conveying barrel communicates with the filtering barrel, a blocking air cylinder is arranged at a discharging opening of the drying barrel, and a blocking plate used for blocking the discharging opening is arranged on the end face of a piston rod of the blocking air cylinder; the device has the beneficial effects that sludge is cleaned, meanwhile, the situation that the sludge is stacked on the shore is replaced, and pollution is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of ecological management and environmental protection, and specifically relates to a river and lake ecological dredging and sludge solidification device. Background Art

[0002] With the acceleration of urbanization and the rise of industrialization, pollution and siltation in rivers, lakes, and other water bodies are becoming increasingly serious. This accumulated silt not only affects the aesthetics and ecological environment of rivers and lakes, but can also seriously impact their flood control and drainage capabilities. Traditional silt removal methods often involve manual or mechanical excavation, followed by direct transportation of the silt to a storage yard for stacking or landfill. This approach is not only inefficient but also prone to secondary pollution.

[0003] In water environment management, silt management has always been a key and challenging aspect of water management projects. The current method of silt disposal involves using a suction device to suck the silt into a shore dump. This not only occupies a large amount of land, but also, despite prolonged storage, the silt still contains a large amount of water, lacks bearing capacity, and exhibits a fluid, plastic state, making it difficult to stack. Furthermore, the stacking process can cause secondary pollution to the air and groundwater. Summary of the Invention

[0004] In order to improve the problem of silt piling up on the shore and easily causing pollution, the present invention provides a river and lake ecological silt solidification device, the specific technical solution is as follows: A river and lake ecological silt desilting and solidification device, comprising a silt desilting vessel, a silt separation mechanism, a silt conveying mechanism, and a silt drying mechanism; The sludge separation mechanism includes a filter barrel for receiving sludge sucked out by a dredging vessel and a vibrating screen arranged in the filter barrel for filtering out stones and other garbage in the sludge. The filter barrel is provided with a power assembly for driving the vibrating screen to swing; The sludge conveying mechanism is used to convey the sludge in the filter barrel to the sludge drying mechanism, and the sludge conveying mechanism includes a conveying barrel and a driving member arranged in the conveying barrel for conveying the sludge; The sludge drying mechanism includes a drying cylinder and a heating wire arranged in the drying cylinder. One side of the conveying barrel is connected to the drying cylinder and the other side is connected to the filter barrel. The discharge port of the drying cylinder is provided with a sealing cylinder, and the end face of the sealing cylinder piston rod is provided with a sealing plate for sealing the discharge port.

[0005] First, a dredging ship is used to suck the silt in the river channel and transport it to the filter barrel. The silt in the filter barrel is vibrated by a vibrating screen, and the power component is used to drive the vibrating screen to swing to improve the filtering effect. After the silt is filtered, the driving part is used to drive the silt along the conveying barrel to the drying drum, and the silt is heated by the heating wire. Finally, after drying, the sealing cylinder is used to open the sealing plate and the discharge port, so that the dry silt can be discharged from the drying drum, thereby cleaning the silt and reducing pollution instead of piling the silt on the shore.

[0006] In a specific feasible implementation scheme, the power assembly includes at least three power electric cylinders arranged in the filter barrel, at least three of the power electric cylinders are evenly distributed along the circumference of the filter barrel, and a lifting block is provided on the end wall of the lifting and retraction rod of each power electric cylinder, and the lifting block is provided with a rotating shaft on the side close to the central axis of the filter barrel, the axis of the rotating shaft is perpendicular to the axis of the power electric cylinder, and both ends of the rotating shaft are hinged with a linkage rod, and the linkage rods at both ends of the same rotating shaft are arranged oppositely, and two linkage rods constitute a group of rotating parts, and the rotating part is hinged with a rotating rod at one end away from the lifting block, the axis of the rotating rod is parallel to the axis of the rotating shaft, the axis of the rotating rod and the axis of the rotating shaft are both perpendicular to the axis of the hinge points at both ends of the linkage rod, one end of the rotating rod is hinged to one of the linkage rods of the corresponding rotating part, and the other end is hinged to another linkage rod of the corresponding rotating part; at least three of the rotating rods are connected by a tripod, and the vibrating screen is arranged on the tripod.

[0007] When the silt falls into the vibrating screen, the vibrating screen vibrates and screens the silt. One of the power cylinders pushes the lifting block downward, and the linkage rod on the lifting block pushes the tripod and the vibrating screen to move. The other two linkage rods rotate synchronously along the rotating shaft and the rotating rod. This can drive the vibrating screen to shake at multiple angles, enhance the filtering effect of the vibrating screen, and improve the filtering effect.

[0008] In a specific embodiment, the vibrating screen includes a filter screen cartridge and a fixing ring arranged on a tripod, and the filter screen cartridge is connected to the fixing ring via a plurality of springs.

[0009] In a specific possible implementation scheme, the filter cylinder includes a vibrating cylinder, a connecting ring and several swing rods, one end of the swing rod is hinged to the connecting ring ball, and the other end is hinged to the top wall ball of the vibrating cylinder, and the end of the connecting ring away from the swing rod is connected to the spring.

[0010] When the vibrating net drum takes on the silt, the vibrating net drum vibrates and filters. When the linkage rod pushes the vibrating net drum to swing, the balls at both ends of the swing rod are hinged to make the vibrating net drum swing in a vertical state, avoiding the situation where the vibrating net drum deflects due to shaking, causing the silt to fall without being filtered.

[0011] In a specific feasible implementation scheme, a guide arc plate is provided inside the filter barrel, and the guide arc plate extends into the conveying barrel. A plurality of filter holes are provided on the side of the guide arc plate extending into the conveying barrel. A drain pipe is provided at the bottom of the filter barrel. The driving member includes a driving motor arranged on the filter barrel, and a motor shaft of the driving motor is coaxially provided with an auger. One end of the auger is arranged in the filter barrel, and the other end extends into the filter barrel. The tail of the conveying barrel is provided with a discharge pipe extending into the drying cylinder.

[0012] The filtered sludge falls to the bottom of the filter barrel, and the motor shaft of the drive motor drives the auger to rotate, so that the sludge can be transported along the guide arc plate to the conveying barrel. The liquid in the sludge can be filtered out through the filter holes, which can reduce the liquid in the sludge and reduce the difficulty of drying.

[0013] In a specific embodiment, a stirring motor is provided on the top wall of the drying drum, a stirring rod is coaxially provided with the motor shaft of the stirring motor, the stirring rod extends into the drying drum, and stirring blades are provided on the side walls of the stirring rod.

[0014] During drying, the stirring motor is used to drive the stirring rod and stirring blades to rotate, which can improve the heating effect.

[0015] The beneficial technical effects of the present invention are as follows: the silt in the river channel is sucked and transported to the filter barrel by a dredging ship, the silt in the filter barrel is vibrated by a vibrating screen, and the vibrating screen is driven to swing by a power component to improve the filtering effect. After the silt is filtered, the silt is driven by a driving member to be transported along the conveying barrel to the drying drum, and the silt is heated by a heating wire. Finally, after drying, the sealing plate is opened by a sealing cylinder, and the discharge port is opened, so that the dry silt can be discharged from the drying drum, thereby cleaning the silt and reducing pollution instead of piling the silt on the shore. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a river and lake ecological silt solidification device according to an embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional view showing the internal structure of the filter barrel.

[0018] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0019] Figure 4 It is a cross-sectional view showing the internal structure of the conveying barrel and drying drum.

[0020] Explanation of the accompanying symbols: 1. Filter barrel; 2. Vibrating screen; 3. Feed pipe; 4. Power assembly; 5. Power cylinder; 6. Lifting block; 7. Guide rod; 8. Bump; 9. Rotating shaft; 10. First hinge shaft; 11. Linking rod; 12. Second hinge rod; 13. Rotating rod; 14. Tripod; 15. Triangular rod; 16. Connecting rod; 17. Conveying barrel; 18. Driving member; 19. Driving motor; 20. Auger; 21. Guide arc plate; 22. Filter hole; 23. Drain pipe; 24. Drying cylinder; 25. Heating wire; 26. Discharge pipe; 27. Filter screen cylinder; 28. Fixed ring; 29. Spring; 30. Vibrating screen cylinder; 31. Connecting ring; 32. Swinging rod; 33. Stirring motor; 34. Stirring rod; 35. Sealing cylinder; 36. Sealing plate; 37. Stirring blade; 38. Guide inclined plate. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The present invention is described in further detail.

[0022] Reference Figure 1 , a river and lake ecological silt desilting and solidification device, comprising a silt desilting vessel, a silt separation mechanism, a silt conveying mechanism, and a silt drying mechanism; The dredging ship is used to suck the silt in the river channel and initially transport it to the silt separation mechanism.

[0023] Reference Figure 1 and Figure 2 The sludge separation mechanism includes a filter barrel 1 and a vibrating screen 2. The filter barrel 1 is used to receive sludge sucked out by a dredging vessel. A feed pipe 3 is provided on the top wall of the filter barrel 1. In this embodiment, the feed pipe 3 is a hose for receiving sludge discharged from the dredging vessel. The vibrating screen 2 is disposed within the filter barrel 1 to filter out debris such as rocks from the sludge. A power assembly 4 is provided within the filter barrel 1 to drive the vibrating screen 2 to oscillate, thereby improving the filtration effect.

[0024] Reference Figure 2 and Figure 3, the power assembly 4 includes at least three power cylinders 5 arranged in the filter barrel 1. In this embodiment, there are three power cylinders, and the three power cylinders 5 are evenly distributed along the circumference of the filter barrel 1. A lifting block 6 is provided on the end wall of the lifting and retraction rod of each power cylinder 5. A guide rod 7 for sliding the lifting block 6 is provided in the filter barrel 1 to improve the stability of the movement of the lifting block 6. A protrusion 8 is provided on the side of the lifting block 6 close to the central axis of the filter barrel 1. A rotating shaft 9 is rotatably provided on the protrusion 8. The rotating shaft 9 is horizontally arranged, and the axis of the rotating shaft 9 is perpendicular to the axis of the power cylinder 5. A first hinge shaft 10 is provided at both ends of the rotating shaft 9. A linkage rod 11 is rotatably provided on the first hinge shaft 10. The linkage rods 11 at both ends of a rotating shaft 9 are arranged opposite to each other, and the two linkage rods 11 constitute a group of rotating parts. The other ends of the two linkage rods 11 of the same rotating part are provided with a second hinged rod 12. The two second hinged rods 12 are commonly connected to a rotating rod 13. The axis of the rotating rod 13 is parallel to the axis of the rotating shaft 9. The axis of the rotating rod 13 and the axis of the rotating shaft 9 are both perpendicular to the axis of the first hinged shaft 10 and the axis of the second hinged rod 12; the three rotating rods 13 are connected by a tripod 14, and the tripod 14 includes a triangular rod 15. Three connecting rods 16 are provided on the triangular rod 15. The three connecting rods 16 correspond one-to-one to the three rotating rods 13 and are rotatably connected.

[0025] The vibrating screen 2 includes a filter screen cartridge 27 and a fixing ring 28 disposed on the triangular rod 15 . The filter screen cartridge 27 is connected to the fixing ring 28 via a plurality of springs 29 .

[0026] The filter screen cylinder 27 includes a vibrating screen cylinder 30, a connecting ring 31 and several swing rods 32. One end of the swing rod 32 is ball-hinged with the connecting ring 31, and the other end is ball-hinged with the top wall of the vibrating screen cylinder 30. The end of the connecting ring 31 away from the swing rod 32 is connected to the spring 29, and the end of the feed pipe 3 away from the inner top wall of the filter barrel 1 extends into the filter barrel 1. In this embodiment, the vibrating screen cylinder 30 is a screen cylinder with filter holes 22, and a vibration motor is provided at the bottom of the screen cylinder.

[0027] Reference Figure 2 、 Figure 4 The sludge conveying mechanism is used to convey the filtered sludge to the sludge drying mechanism. The mechanism includes a conveying barrel 17 and a driving member 18. The conveying barrel 17 is tilted downward, that is, on a vertical plane, the angle between the projection of the axis of the conveying barrel 17 and the projection of the axis of the filter barrel 1 is an obtuse angle. The conveying barrel 17 is connected to the filter barrel 1. The driving member 18 includes a driving motor 19 and an auger 20. The motor shaft of the driving motor 19 is coaxially connected to the auger 20, and the axis of the auger 20 is parallel to the axis of the conveying barrel 17. One end of the auger 20 is set in the filter barrel 1, and the other end extends into the conveying barrel 17. The sludge is conveyed from the filter barrel 1 to the conveying barrel 17 by rotation.

[0028] Reference Figure 2 、 Figure 4 The bottom of the filter barrel 1 is provided with a guide arc plate 21, and the inner bottom wall of the filter barrel 1 is provided with a guide inclined plate 38. The side of the guide inclined plate 38 away from the vibrating screen 2 is connected to the guide arc plate 21. The guide arc plate 21 is located below the auger 20. The side of the guide arc plate 21 that extends into the delivery barrel 17 is provided with a filter hole 22. The bottom of the filter barrel 1 is provided with a drain pipe 23. The filtered sludge falls into the guide arc plate 21 and is transported to the delivery barrel 17 by the rotation of the auger 20. At the same time, the filter hole 22 can filter out the liquid in the sludge, reducing the moisture content in the sludge and making drying easier.

[0029] The sludge drying mechanism includes a drying drum 24 and a heating wire 25. A discharge pipe 26 is provided at the rear end of the delivery drum 17, extending into the drying drum 24 and conveying the sludge into the drying drum 24. The heating wire 25 is located within the sidewall of the drying drum 24 to heat and dry the sludge. A stirring motor 33 is mounted on the top wall of the drying drum 24. Its motor shaft is coaxially connected to a stirring rod 34, the axis of which is parallel to the axis of the filter drum 1. The stirring rod 34 extends into the drying drum 24 and is equipped with stirring blades 37. During the drying process, the stirring motor 33 drives the stirring rod 34 and stirring blades 37 to rotate, enhancing the heating effect.

[0030] The discharge port of the drying drum 24 is provided with a blocking cylinder 35, which is arranged horizontally and has a blocking plate 36 on the end face of its piston rod. When the sludge is dried, the blocking cylinder 35 pushes the blocking plate 36 to open the discharge port, and the dry sludge is discharged from the drying drum 24.

[0031] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A river and lake ecological silt desilting and solidification device, comprising a silt desilting vessel, characterized in that: It also includes a sludge separation mechanism, a sludge conveying mechanism, and a sludge drying mechanism; The sludge separation mechanism comprises a filter barrel (1) for receiving sludge sucked out by a dredging vessel, and a vibrating screen (2) arranged in the filter barrel (1) for filtering out garbage such as stones in the sludge. The filter barrel (1) is provided with a power assembly (4) for driving the vibrating screen (2) to swing. The sludge conveying mechanism is used to convey the sludge in the filter barrel (1) to the sludge drying mechanism, and the sludge conveying mechanism includes a conveying barrel (17) and a driving member (18) arranged in the conveying barrel (17) for conveying the sludge. The sludge drying mechanism comprises a drying cylinder (24) and a heating wire (25) arranged in the drying cylinder (24); one side of the conveying barrel (17) is connected to the drying cylinder (24) and the other side is connected to the filter barrel (1); a sealing cylinder (35) is provided at the discharge port of the drying cylinder (24); and a sealing plate (36) for sealing the discharge port is provided on the end surface of the piston rod of the sealing cylinder (35).

2. The river and lake ecological desilting sludge solidification device according to claim 1, characterized in that: The power assembly (4) includes at least three power electric cylinders (5) arranged in the filter barrel (1), and the at least three power electric cylinders (5) are evenly distributed along the circumference of the filter barrel (1). A lifting block (6) is provided on the end wall of the lifting and retracting rod of each power electric cylinder (5). A rotating shaft (9) is provided on the side of the lifting block (6) close to the central axis of the filter barrel (1). The axis of the rotating shaft (9) is perpendicular to the axis of the power electric cylinder (5). Both ends of the rotating shaft (9) are hinged with linkage rods (11). The linkage rods (11) at both ends of the same rotating shaft (9) are arranged opposite to each other, and the two linkage rods (11) are arranged opposite to each other. A group of rotating parts is formed, wherein one end of the rotating part away from the lifting block (6) is hinged with a rotating rod (13), the axis of the rotating rod (13) is parallel to the axis of the rotating shaft (9), the axis of the rotating rod (13) and the axis of the rotating shaft (9) are both perpendicular to the axis of the hinge points at both ends of the linkage rod (11), one end of the rotating rod (13) is hinged to one of the linkage rods (11) of the corresponding rotating part, and the other end is hinged to another linkage rod (11) of the corresponding rotating part; at least three rotating rods (13) are connected by a tripod (14), and the vibrating screen (2) is arranged on the tripod (14).

3. The river and lake ecological desilting and sludge solidification device according to claim 2, characterized in that: The vibrating screen (2) comprises a filter screen cylinder (27) and a fixing ring (28) arranged on a tripod (14); the filter screen cylinder (27) is connected to the fixing ring (28) via a plurality of springs (29).

4. The river and lake ecological silt solidification device according to claim 3 is characterized by: The filter screen cylinder (27) comprises a vibrating screen cylinder (30), a connecting ring (31), and a plurality of swinging rods (32). One end of the swinging rod (32) is ball-jointed to the connecting ring (31), and the other end is ball-jointed to the top wall of the vibrating screen cylinder (30). The end of the connecting ring (31) away from the swinging rod (32) is connected to the spring (29).

5. The river and lake ecological silt solidification device according to claim 1 is characterized by: A guide arc plate (21) is provided inside the filter barrel (1), and the guide arc plate (21) extends into the conveying barrel (17). A plurality of filter holes (22) are provided on the side of the guide arc plate (21) extending into the conveying barrel (17). A drain pipe (23) is provided at the bottom of the filter barrel (1). The driving member (18) includes a driving motor (19) provided on the filter barrel (1). A motor shaft of the driving motor (19) is coaxially provided with an auger (20). One end of the auger (20) is provided in the filter barrel (1), and the other end extends into the filter barrel (1). A discharge pipe (26) extending into the drying drum (24) is provided at the tail of the conveying barrel (17).

6. The river and lake ecological desilting sludge solidification device according to claim 1, characterized in that: A stirring motor (33) is provided on the top wall of the drying cylinder (24), a stirring rod (34) is coaxially provided on the motor shaft of the stirring motor (33), the stirring rod (34) extends into the drying cylinder (24), and a stirring blade (37) is provided on the side wall of the stirring rod (34).

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