Intelligent river dredging equipment

Abstract

This invention relates to the field of river dredging equipment technology. The invention discloses an intelligent river dredging operation device, including a dredging vehicle with a sludge extraction port at its bottom; a treatment channel with a sewage inlet, a drainage outlet, and a bypass channel, the sewage inlet being connected to the sludge extraction port; a flexible filter cloth fixedly installed on the treatment channel; two water guiding zones on both sides of the treatment channel, each with a drainage hole at its bottom; a sludge discharge port in the middle of the bypass channel; and a separation device installed on the bypass channel. In this intelligent river dredging operation device, sludge-water is pumped into the sewage inlet, filtered through the flexible filter cloth, and then directly discharged into the river through the drainage outlet. Two electric rotating shafts are alternately controlled to rotate and wind the flexible filter cloth, tightening and squeezing the sludge on the cloth, causing water to be squeezed out again. The squeezed sludge is then scraped off and discharged, effectively reducing the water content of the extracted sludge, shortening the drying cycle, and avoiding the occupation of large amounts of land and pollution.

Description

Technical Field

[0001] This invention belongs to the technical field of river dredging equipment, and in particular relates to intelligent river dredging equipment. Background Technology

[0002] Rivers are complex ecosystems that include land, plants and animals, and water. Whether they are natural rivers or urban rivers, they are often subject to scouring and siltation, which can easily lead to water damage. River ecological restoration plays a very important role in the urban environment.

[0003] River pollution primarily results from large amounts of non-point source pollutants entering waterways through urban storm drains or overflows, causing continuous siltation on the riverbed. During the biological oxidation and decomposition of these pollutants in the water, large amounts of dissolved oxygen are consumed. Insufficient oxygen supply in the water leads to anaerobic fermentation of organic matter, emitting foul odors and poisoning organisms. This not only affects the river landscape but also pollutes the water downstream, seriously threatening the stability of the ecosystem and the human living environment.

[0004] River dredging is a core part of water environment management. Traditional river dredging methods generally involve underwater dredging of sludge. Dredging is done by using suction dredgers, grab buckets, and pumps to remove the sludge. The sludge with high water content needs to be transported to land for natural drying. The sludge with extremely high water content accumulates naturally on land and drains itself, which takes 30-60 days and occupies a large amount of land. In addition, the leachate flows back into the river, causing a serious odor in the area. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an intelligent underwater integrated, continuous, and uninterrupted river dredging operation device, which effectively solves the problem of high water content in the extracted sludge.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: intelligent river dredging equipment.

[0007] include: A dredging vehicle, the bottom of which is equipped with tracks and a sludge extraction port; The treatment device includes a treatment channel installed on the sludge dredging vehicle. The treatment channel has a sludge inlet, a drain outlet, and a bypass channel. The sludge inlet is connected to the sludge pumping outlet. A flexible filter cloth is fixedly installed on the treatment channel, between the sludge inlet and the drain outlet. Two water guiding zones are respectively provided on both sides of the treatment channel. The two water guiding zones are respectively connected to the two ends of the bypass channel. A drain hole is opened at the bottom of each water guiding zone. The two ends of the flexible filter cloth are respectively fixed on the two water guiding zones. A sludge discharge outlet is opened in the middle of the bypass channel. A separation device is slidably installed on the bypass channel with a single degree of freedom. The separation device includes a support frame that slides within a clearance channel with a single degree of freedom. Both sides of the support frame are provided with processing zones. Both sides of the inner wall of each processing zone are provided with electric push rods. The movable end of each electric push rod is fixed with a pressing head. The pressing head can move and contact the flexible filter cloth. Both processing zones are fixed with electric rotating shafts, and both electric rotating shafts are fixedly connected to the flexible filter cloth.

[0008] Furthermore, the sludge extraction port is located at the front end of the bottom of the sludge removal vehicle, and an anti-clogging grille cover is installed in front of the sludge extraction port.

[0009] Furthermore, a spring telescopic rod is fixedly installed on each of the water guiding zones, and a sealing plate is fixedly connected to the movable end of the spring telescopic rod.

[0010] Furthermore, the cross-section of the pressure clamp is U-shaped, and the pressure clamp is engaged with the side rib of the processing area.

[0011] Furthermore, the unfolded length of the flexible filter cloth is greater than twice the width of the processing channel.

[0012] Furthermore, a support grid is fixed to the inner wall of the processing channel, and the flexible filter cloth is attached to the support grid.

[0013] Furthermore, the dredging vehicle is equipped with a variable frequency sludge pump, a posture sensor, and an anti-collision ultrasonic probe.

[0014] Furthermore, the attitude sensor collects the vehicle body tilt angle in real time, and automatically adjusts the speed of the walking track to restore horizontality when the tilt angle is greater than 5°.

[0015] Furthermore, the anti-collision ultrasonic probe detects obstacles in the river channel, and automatically decelerates, stops, and turns when the distance to the obstacle is less than 0.5m.

[0016] Furthermore, it also includes a variable frequency vibration motor, which is installed on the top of the processing channel and located directly above the sludge discharge port.

[0017] Compared with the prior art, the beneficial effects of the present invention are: By using flexible filter cloth filtration and dual-shaft winding and squeezing for double dewatering, the water content of the sludge is significantly reduced, eliminating the need for land drying, shortening the treatment cycle, and saving land resources. The dual electric shafts work alternately to achieve continuous sludge removal without stopping, resulting in high operating efficiency. The dewatered clean water is directly returned to the river channel, avoiding leachate backflow and odor diffusion, which is highly environmentally friendly. This effectively reduces the water content of the extracted sludge, shortens the draining cycle, and avoids occupying a large amount of land and causing pollution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the processing device in a specific embodiment of the present invention.

[0020] Figure 3 This is a perspective sectional view of the processing device in a specific embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the processing channel in a specific embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the flexible filter cloth and support frame in a specific embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the separation device in a specific embodiment of the present invention.

[0024] Figure label: 10. Dredging vehicle; 11. Tracked walking vehicle; 12. Sludge extraction port; 13. Attitude sensor; 14. Anti-collision ultrasonic probe; 20. Treatment device; 21. Treatment channel; 211. Sludge inlet; 212. Drainage outlet; 213. Water guiding zone; 214. Clearance path; 215. Sealing plate; 216. Drainage hole; 217. Sludge discharge port; 218. Support fence; 22. Flexible filter cloth; 23. Separation device; 231. Support frame; 2311. Treatment area; 232. Pressure clamp; 233. Electric rotating shaft; 30. Variable frequency vibration motor. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] refer to Figures 1 to 6 As shown, the intelligent river dredging equipment of the present invention mainly includes a dredging vehicle 10 as the main frame of the intelligent river dredging equipment, a processing device 20 configured and installed on the dredging vehicle 10 to compress the silt, and a variable frequency vibration motor 30 configured and installed on the processing device 20 to vibrate and unload the processed silt.

[0027] refer to Figure 1As shown, the dredging vehicle 10 is mainly welded from 304 stainless steel, which is corrosion-resistant and waterproof, allowing for long-term underwater operation. The bottom of the dredging vehicle 10 has tracks 11, resulting in low ground pressure, enabling it to remain in silty riverbeds without getting stuck or overturning. Once deployed into the river, the dredging vehicle 10 can be controlled to move within the river channel. A sludge suction port 12 is located at the bottom front of the dredging vehicle 10, close to the riverbed, ensuring thorough sludge removal. An anti-clogging grating cover is also installed on the sludge suction port 12, with a 5mm gap to intercept large debris and prevent blockage. A variable frequency sludge pump (not shown) is fixedly installed on the dredging vehicle 10. The variable frequency sludge pump is equipped with… The sludge concentration sensor and flow sensor, along with the variable frequency sludge pump, can adjust the power based on feedback from the sludge concentration sensor. It operates at low concentrations for energy saving and increases suction power when the concentration is high. The flow sensor monitors the flow rate in real time and automatically alarms when abnormalities occur. The sludge at the bottom of the river is suctioned under negative pressure by the sludge pump. The sludge at the bottom of the river is drawn in through the sludge inlet 12 and treated by the treatment device 20. The sludge dredging vehicle 10 is equipped with an attitude sensor 13 and an anti-collision ultrasonic probe 14. The attitude sensor 13 collects the vehicle's tilt angle in real time; when the tilt angle is >5°, it automatically adjusts the left and right track speeds to restore horizontality. The anti-collision ultrasonic probe 14 detects obstacles in the river; when the distance is <0.5m, it automatically decelerates, stops, and steers.

[0028] Continue to refer to Figures 1 to 6As shown, the treatment device 20 includes a treatment channel 21 and a flexible filter cloth 22 disposed on the treatment channel 21. The treatment channel 21 has an inlet 211 and an outlet 212. The treatment channel 21 is generally continuous. The inlet 211 is connected to the output end of the sludge pump to receive the sludge pumped by the sludge pump. The treatment channel 21 is a sealed stainless steel cavity. The sludge enters from the inlet 211, is filtered by the flexible filter cloth 22, and the clean water is discharged from the outlet 212. The treatment channel 21 is provided with [missing information - likely related to a specific device or equipment]. The system has two water guiding zones 213. The two ends of the flexible filter cloth 22 are fixedly connected to the two water guiding zones 213 respectively. A clearance channel 214 is provided at the bottom of the inner wall of the treatment channel 21. The clearance channel 214 provides a sliding track for the separation device 23, allowing the separation device 23 to slide freely within the clearance channel 214. Both ends of the clearance channel 214 are connected to the two water guiding zones 213 respectively. Thus, the separation device 23 can slide directly to the water guiding zone 213. The inner walls of each water guiding zone 213... A sealing plate 215 is elastically connected to the side via a spring telescopic rod. The sealing plate 215 is driven by the spring telescopic rod and normally closes the water guiding area to prevent excessive sewage from entering the water guiding area 213 through the treatment channel 21. Both water guiding areas 213 are provided with drainage holes 216. The water guiding area 213 collects the squeezed and dewatered clean water, which flows back to the river channel and is discharged directly through the drainage holes 216. A sludge discharge port 217 with a diameter of 200mm is provided in the middle of the bypass channel 214 for directional discharge of dewatered water. The sludge is collected and transported to the shore. The inner wall of the treatment channel 21 is welded with a support fence 218. The flexible filter cloth 22 can be attached to the support fence 218. The support fence 218 is a high-strength stainless steel grid that supports the flexible filter cloth 22 throughout the process, preventing water pressure from damaging the filter cloth. When filtering sludge, the pressure of the waste liquid flow will push the flexible filter cloth 22, and the support fence 218 can support the flexible filter cloth 22 to improve its bearing capacity.

[0029] The sludge pump draws the sludge water into the inlet 211 on the treatment channel 21. After being filtered by the flexible filter cloth 22, the sludge water is directly discharged into the river through the outlet 212. Large-sized sludge is blocked on the flexible filter cloth 22. The separation device 23 then squeezes the blocked sludge. The squeezed water is discharged through the outlet 216 on the water guiding area 213 and directly fed into the river.

[0030] The separation device 23 includes a support frame 231, which is made of lightweight aluminum alloy. The support frame 231 restricts sliding within the clearance channel 214. Two processing zones 2311 are provided on the support frame 231. These processing zones 2311 can temporarily store sludge and, in conjunction with winding and pressurization, complete dewatering. Electric push rods are provided on both sides of the inner wall of each processing zone 2311. The movable ends of the electric push rods are fixedly connected to pressing heads 232. The pressing heads 232 have a "U"-shaped cross-section, allowing them to engage with the side ribs of each processing zone 2311 of the support frame 231 (e.g., ...). Figure 6As shown), the extension of the electric push rod can drive the pressure clamp 232 to contact the flexible filter cloth 22, thereby controlling the scraping of sludge on the flexible filter cloth 22. Two electric rotating shafts 233 are fixedly installed in the two treatment zones 2311 respectively. Both electric rotating shafts 233 are fixedly connected to one side of the flexible filter cloth 22. It should be noted that the length of the flexible filter cloth 22 is greater than twice the width of the treatment channel 21, so as to ensure that the flexible filter cloth 22 can be alternately wound on the two electric rotating shafts 233. The two electric rotating shafts 233 work alternately. One shaft winds the flexible filter cloth 22 to dehydrate and clear blockages, while the other shaft simultaneously unfolds the filter cloth for filtration, realizing non-stop operation.

[0031] When one of the electric shafts 233 rotates, the rotating electric shaft 233 can drive the connected portion of the flexible filter cloth 22 to rotate around the electric shaft 233, thereby causing the flexible filter cloth 22 to be wound around the electric shaft 233. At the same time, the winding of the flexible filter cloth 22 by the electric shaft 233 will also force the electric shaft 233 to move into the water guiding zone 213 in the same direction. The movement of the electric shaft 233 will drive the entire separation device 23 to move along the avoidance path 214 towards the water guiding zone 213 in the same direction. Finally, the support frame 231 will push the sealing plate 215 in the same direction to overcome the movement of the spring telescopic rod, so that the processing area 2311 at this position enters the water guiding zone 213 to the limit position and no longer moves, and continue to control the electric shaft 233. The electric shaft 233 rotates and winds the flexible filter cloth 22 in place. As the flexible filter cloth 22 is wound and squeezed, the sludge on it is also squeezed, and a large amount of water is squeezed out. The water collects in the treatment area 2311 and is discharged through the drain hole 216 of the water guiding area 213. It should be noted that when the electric shaft 233 winds the flexible filter cloth 22, the flexible filter cloth 22 on the other electric shaft 233 of the flexible filter cloth 22 unfolds. The unfolded flexible filter cloth 22 continues to perform filtration without stopping the machine. It should also be noted that when one electric shaft 233 moves to the top of the drain hole 216 in the water guiding area 213 in the same direction, the other electric shaft 233 moves to the top of the sludge discharge port 217, corresponding to the sludge discharge port 217.

[0032] refer to Figure 1 and Figure 4 As shown, the intelligent river dredging equipment of the present invention also includes a variable frequency vibration motor 30 with an adjustable vibration frequency. The variable frequency vibration motor 30 is fixedly installed on the top of the treatment channel 21 and located directly above the sludge discharge port 217. When a treatment zone 2311 moves to the corresponding position of the variable frequency vibration motor 30, the variable frequency vibration motor 30 starts to vibrate and transmits the vibration force to the treatment zone 2311 to vibrate the dewatered sludge in the treatment zone 2311. The sludge falls and is discharged quickly without residue or blockage, and is finally discharged from the sludge discharge port 217.

[0033] In operation, the sludge pump draws the sludge-water into the inlet 211 of the treatment channel 21. After being filtered through the flexible filter cloth 22, the sludge-water is directly discharged into the river through the outlet 212. Large sludge particles are blocked on the flexible filter cloth 22, and the separation device 23 then squeezes the blocked sludge. During the treatment process, two electric rotating shafts 233 are alternately controlled. When the electric rotating shaft 233 on one treatment zone 2311 is rotated, the two electric push rods on the other treatment zone 2311 are simultaneously activated to extend. The two pressure clamps 232 on the treatment zone 2311 abut against the flexible filter cloth 22. The activated electric shaft 233 rotates and winds the flexible filter cloth 22, winding the sludge on the flexible filter cloth 22 along with it. At the same time, the electric shaft 233 is also pulled by the flexible filter cloth 22 and moves towards the water guiding zone 213 in the same direction. This drives the entire separation device 23 to move along the avoidance path 214 towards the water guiding zone 213. After pushing the top sealing plate 215, it enters the water guiding zone 213 and stops moving at its limit. Then, the electric shaft 233 continues to rotate, and its winding force tightens the flexible filter cloth 22 it is wound on, causing the flexible filter cloth 22 to tighten and squeeze the silt on it, squeezing out the water again, which is then discharged into the river through the drain hole 216. During the process of the electric shaft 233 winding the flexible filter cloth 22, another electric shaft 233 also passively moves along with the separation device 23. The flexible filter cloth 22 wound on the passively moving electric shaft 233 is also unfolding synchronously. The 22 moves relative to the pressure head 232 to scrape and clean the surface of the unfolded flexible filter cloth 22, so as to scrape off the sludge on the flexible filter cloth 22. The scraped-off sludge is retained in the space enclosed by the treatment zone 2311 and the flexible filter cloth 22. As the separation device 23 moves, the treatment zone 2311 also moves to the top of the sludge discharge port 217. The sludge in the treatment zone 2311 after the water is squeezed out will be discharged through the sludge discharge port 217 under the vibration of the variable frequency vibration motor 30 for collection.

Claims

1. Intelligent river dredging equipment, characterized in that, include: Dredging vehicle (10), the bottom of which is provided with a walking track (11) and a mud pumping port (12). The treatment device (20) includes a treatment channel (21) installed on the sludge removal vehicle (10). The treatment channel (21) has a sludge inlet (211), a drain outlet (212), and a bypass (214). The sludge inlet (211) is connected to the sludge pumping outlet (12). A flexible filter cloth (22) is fixedly installed on the treatment channel (21). The flexible filter cloth (22) is located between the sludge inlet (211) and the drain outlet (212). Two water guiding zones (213) are respectively provided on both sides of the flexible filter cloth (22). The two water guiding zones (213) are respectively connected to the two ends of the bypass channel (214). Each water guiding zone (213) has a drainage hole (216) at the bottom. The two ends of the flexible filter cloth (22) are respectively fixed on the two water guiding zones (213). A mud discharge port (217) is provided in the middle of the bypass channel (214). A separation device (23) is slidably installed on the bypass channel (214) with a single degree of freedom. The separation device (23) includes a support frame (231) that slides within a clearance path (214) with a single degree of freedom. Both sides of the support frame (231) are provided with processing areas (2311). Both sides of the inner wall of each processing area (2311) are provided with electric push rods. The movable end of each electric push rod is fixedly provided with a pressing head (232). The pressing head (232) can move and contact the flexible filter cloth (22). Both processing areas (2311) are fixedly provided with electric rotating shafts (233). Both electric rotating shafts (233) are fixedly connected to the flexible filter cloth (22).

2. The intelligent river dredging equipment according to claim 1, characterized in that: The sludge extraction port (12) is located at the front end of the bottom of the sludge removal vehicle (10), and an anti-clogging grid cover is installed in front of the sludge extraction port (12).

3. The intelligent river dredging equipment according to claim 1, characterized in that: Each of the water guiding zones (213) is fixedly installed with a spring telescopic rod, and the movable end of the spring telescopic rod is fixedly connected to a sealing plate (215).

4. The intelligent river dredging equipment according to claim 1, characterized in that: The cross-section of the pressure head (232) is U-shaped, and the pressure head (232) is engaged with the side rib of the processing area (2311).

5. The intelligent river dredging equipment according to claim 1, characterized in that: The unfolded length of the flexible filter cloth (22) is greater than twice the width of the processing channel (21).

6. The intelligent river dredging equipment according to claim 1, characterized in that: The inner wall of the processing channel (21) is fixed with a support fence (218), and the flexible filter cloth (22) is attached to the support fence (218).

7. The intelligent river dredging equipment according to claim 1, characterized in that: The dredging vehicle (10) is equipped with a variable frequency sludge pump, an attitude sensor (13), and an anti-collision ultrasonic probe (14).

8. The intelligent river dredging equipment according to claim 7, characterized in that: The attitude sensor (13) collects the vehicle body tilt angle in real time. When the tilt angle is greater than 5°, the speed of the walking track (11) is automatically adjusted to restore the horizontal position.

9. The intelligent river dredging equipment according to claim 7, characterized in that: The anti-collision ultrasonic probe (14) detects obstacles in the river channel and automatically decelerates, stops and turns when the distance to the obstacle is less than 0.5m.

10. The intelligent river dredging equipment according to any one of claims 1 to 9, characterized in that: It also includes a variable frequency vibration motor (30), which is installed on top of the processing channel (21) and directly above the sludge discharge port (217).

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