Water supply tank culvert online dredging device and dredging method thereof

Abstract

The water supply tank culvert online dredging device comprises a rack, a driving device and a dredging hopper, the driving device is installed on the rack, the rack is guided to move on a rail structure in a tank culvert in the length direction of the tank culvert through the driving device, the dredging hopper is installed on the lower side of the rack, and the driving device drives the dredging hopper to move in the length direction of the tank culvert. A partition plate is installed in the middle of the desilting hopper and divides the interior of the desilting hopper into an overflowing bin and a sludge bin, the overflowing bin penetrates front and back, and a collecting hopper is installed at the rear end of the sludge bin. In the using state, the collecting hopper is connected with a sludge suction device through a hose. The overflowing bin is used for overflowing and does not affect downstream water supply, the sludge bin is used for shoveling up sludge to enter the collecting head, and the sludge suction device provides negative pressure for the sludge bin through a hose, so that the sludge is sucked from the collecting head and then enters the sludge suction device to be collected without overflowing. According to the dredging device, dredging can be conducted under the working condition that water is not cut off, water turbidity can be reduced in the dredging process, and the production burden of a downstream water treatment plant is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of culvert dredging, and in particular to an on-line dredging device for a water supply culvert and a dredging method thereof. Background Art

[0002] A culvert is a water conveyance culvert with a large rectangular cross-section. After the culvert has been in operation for a period of time, silt will accumulate at the bottom of the culvert, and it is necessary to remove the silt in the culvert.

[0003] Currently, when cleaning silt, generally, after closing the gate to stop the water conveyance, manual cleaning is carried out, or a small excavator is driven for cleaning. This method requires the culvert to stop water conveyance, and it is necessary to transport the silt back and forth, and the dredging efficiency is also low.

[0004] In the prior art, Chinese patent document CN218757885U, publication (announcement) date: Mar. 28, 2023, discloses a traveling mechanism for a dredging device, including a fixing device, a hydraulic telescopic device, and a floating box for providing buoyancy; the fixing device includes a retractable upper tightening device and a lower tightening device, and when the upper tightening device and the lower tightening device extend, they are used to fix the traveling mechanism; the dredging device can be fixed in a pipeline or culvert to be dredged; one end of the hydraulic telescopic device is connected to the floating box, and the other end is connected to the dredging device, and is used to push the dredging device forward or pull the traveling mechanism forward. Although this mechanism can carry out dredging, when dredging, the dredging device will block the water flow in the culvert, and at the same time, it will also make the water body in the culvert seriously turbid. If it is directly used inside a water supply culvert, the turbid water will increase the production burden of the downstream water treatment plant. Summary of the Invention

[0005] In order to solve the current technical problems, the main object of the present invention is to provide an on-line dredging device for a water supply culvert and a dredging method thereof, which can carry out dredging under the condition of non-stop water, and can reduce the turbidity of the water body and reduce the production burden of the downstream water treatment plant when dredging.

[0006] In order to overcome the problems existing in the prior art, the technical solution adopted by the present invention is: an on-line dredging device for a water supply culvert, including a frame, a driving device, and a dredging bucket. The driving device is installed on the frame, and the frame is guided to move along the length direction of the culvert on the track structure in the culvert through the driving device. The dredging bucket is installed on the lower side of the frame, and a partition is installed in the middle of the dredging bucket. The partition divides the interior of the dredging bucket into a flow-through chamber and a silt chamber. The flow-through chamber runs through from front to back, and a collecting hopper is installed at the rear end of the silt chamber; in the use state, the collecting hopper is connected to a mud suction device through a hose.

[0007] The driving device includes at least two rotating shafts and at least one first driver. The rotating shafts are installed on the frame through two bearing seats. Track wheels are respectively installed at both ends of the rotating shafts, and the track wheels are placed on the track structures on the upper sides of the inner side walls of the culvert. The first driver is installed on the frame and is in transmission connection with the rotating shaft.

[0008] The track structure includes a support member and a rack. Support members are installed on the upper sides of the inner side walls of both sides of the culvert. A wheel groove is provided inside the support member, and a rack is installed on the lower side of the wheel groove. The wheel surface of the track wheel is a gear structure, and the track wheel rolls on the rack.

[0009] A plurality of pressing wheels are installed on the top of the frame.

[0010] It further includes a dispersing device. The dispersing device includes a second driver and a first longitudinal shaft. The second driver is installed on the frame. The upper end of the first longitudinal shaft is fixedly connected to the output shaft of the second driver. The lower end of the first longitudinal shaft extends into the silt bin, and dispersing rods are installed on the first longitudinal shaft inside the silt bin.

[0011] The dispersing device further includes a second longitudinal shaft. The second longitudinal shaft is rotationally connected to the frame and the dredging bucket. The upper end of the second longitudinal shaft is in transmission connection with the first longitudinal shaft through a transmission structure, and the dispersing rods are also installed at the lower end of the second longitudinal shaft.

[0012] A front shovel is installed at the front end of the silt bin. The front shovel expands outward in a trumpet shape, and a plurality of limiting wheels are installed on the outer side walls of both sides of the dredging bucket.

[0013] A filter screen is installed at the rear end of the flow-through bin.

[0014] A sludge pump is installed at the small-mouth end of the collection hopper, and the outlet end of the sludge pump is connected to a hose.

[0015] An on-line dredging method for a water supply culvert adopts the on-line dredging device for a water supply culvert as described above. The dredging method includes the following steps: S1. Install the dredging device into the culvert, and place and support the driving device on the track structure inside the culvert. S2. Install the collection hopper at the rear end of the silt bin, and then connect the collection hopper to the mud suction device through a hose. S3. Start the driving device to drive the frame to move along the length direction of the culvert. During this process, the silt at the bottom of the culvert is shoveled into the silt bin for collection by the dredging bucket. Then, the mud suction device is started, a negative pressure is generated in the collection hopper, and under the action of the mud suction device, the silt enters the mud suction device through the hose, and the water flow on the upper side flows downstream through the flow-through bin. S4. After dredging, disassemble the collection hopper and the hose, and the water flow passes through the flow-through bin and the silt bin.

[0016] The present invention has the following beneficial effects: 1. The overflow chamber of the present invention is used for overflow, without affecting the downstream water supply. The silt chamber is used to shovel up silt into the collection head. The sludge suction device provides negative pressure for the silt chamber through a hose, so that the silt is sucked in from the collection head and then enters the sludge suction device for collection without overflowing. This enables the present invention to carry out silt cleaning under the condition of non-stop water supply, and during silt cleaning, it can reduce water turbidity and reduce the production burden of the downstream water treatment plant.

[0017] 2. The track structure of the present invention includes a support member and a rack. The support members are installed on the upper sides of the two inner side walls of the culvert box. The inner side of the support member has a wheel groove, and a rack is installed on the lower side of the wheel groove. The wheel surface of the track wheel is a gear structure, and the track wheel rolls on the rack, which can prevent the track wheel from slipping on the track structure during silt cleaning and provide a stable and reliable driving force. Moreover, the support member is embedded in the inner wall of the concrete-structured culvert box. After the installation of the culvert box is completed, the track structure is formed, and there is no need to install the track structure additionally, making it more convenient to install the silt cleaning device of the present application later.

[0018] 3. The present invention further includes a dispersing device, which disperses the lumpy silt to facilitate suction into the sludge suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a front view structural schematic diagram of the present invention when installed in the culvert box.

[0021] Figure 2 It is a side view structural schematic diagram of the present invention when installed in the culvert box.

[0022] Figure 3 It is a structural schematic diagram of the frame and driving device of the present invention.

[0023] Figure 4 It is a front view structural schematic diagram of the present invention.

[0024] Figure 5 For Figure 1 The enlarged structural schematic diagram at A in

[0025] Figure 6 It is a usage state diagram of the present invention.

[0026] Figure 7This is a top - view structural schematic diagram of the front shovel and the collection hopper of the present invention respectively installed on the silt bin.

[0027] Reference numerals: Box culvert 1, support member 2, wheel groove 3, rack 4; Frame 10; Drive device 20, bearing seat 21, rotating shaft 22, track wheel 23, wheel surface 231, driven sprocket 24, first driver 25, driving sprocket 26, chain 27; Silt - cleaning hopper 30, partition plate 31, flow - through bin 32, filter screen 321, silt bin 33, front shovel 34, collection hopper 35, limit wheel 36; Press - down wheel 40, support 41, wheel body 42; Dispersing device 50, second driver 51, upper bearing seat 52, lower bearing seat 53, first longitudinal shaft 54, dispersing rod 55, second longitudinal shaft 56, drive belt 57; Sludge pump 60; Monitoring and scanning device 70; Silt - suction device 80, power - supply cable 81, hose 82. Specific implementation mode

[0028] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0029] Embodiment 1: Refer to Figure 1-7 , the present invention provides an on - line silt - cleaning device for a water - supply box culvert, including a frame 10, a drive device 20 and a silt - cleaning hopper 30. The drive device 20 is installed on the frame 10, and the frame 10 is guided to move along the length direction of the box culvert 1 on the track structure in the box culvert 1 through the drive device 20. The silt - cleaning hopper 30 is installed on the lower side of the frame 10. A partition plate 31 is installed in the middle of the silt - cleaning hopper 30. The partition plate 31 divides the interior of the silt - cleaning hopper 30 into a flow - through bin 32 and a silt bin 33. The flow - through bin 32 runs through from front to back, and a collection hopper 35 is installed at the rear end of the silt bin 33; in the use state, the collection hopper 35 is connected to the silt - suction device 80 through a hose 82. The flow - through bin 32 is used for water flow - through without affecting the downstream water supply. The silt bin 33 is used to shovel up silt into the collection head 35. The silt - suction device 80 provides negative pressure for the silt bin 33 through the hose 82, so that the silt is sucked from the collection head 35 and then enters the silt - suction device 80 for collection without overflowing. This enables the present invention to carry out silt - cleaning under the condition of not stopping water, and during silt - cleaning, it can reduce water turbidity and reduce the production burden of the downstream water treatment plant.

[0030] In this embodiment, the hose 82 is a steel wire hose, which has good radial support and good flexibility in the axial direction.

[0031] In this embodiment, the sludge suction device 80 is a sewage suction truck.

[0032] See Figure 1-4 , the driving device 20 includes at least two rotating shafts 22 and at least one first driver 25. The rotating shafts 22 are installed on the frame 10 through two bearing seats 21. Track wheels 23 are respectively installed at both ends of the rotating shaft 22, and the track wheels 23 are placed on the track structures on the upper sides of the two inner side walls of the culvert 1; the first driver 25 is installed on the frame 10, and the first driver 25 is in transmission connection with the rotating shaft 22. By driving the rotating shaft 22 to rotate through the first driver 25, the track wheels 23 are driven to rotate, so that the frame 10 moves along the track structure.

[0033] In this embodiment, see Figure 3 , two rotating shafts 22 are installed, and two first drivers 25 are provided. The two first drivers 25 are respectively in transmission connection with the two rotating shafts 22, so as to have greater driving force. The first driver 25 is a reduction motor.

[0034] Specifically, see Figure 3 、 4 , a driving sprocket 26 is installed on the output shaft of the first driver 25, a driven sprocket 24 is installed on the rotating shaft 22, and the driving sprocket 26 and the driven sprocket 24 are connected and driven by a chain 27. Of course, in addition to using chain drive, gear drive can also be used.

[0035] See Figure 1 、 2 、5, the track structure includes a support member 2 and a rack 4. The support members 2 are installed on the upper sides of the two inner side walls of the culvert 1. The inner side of the support member 2 has a wheel groove 3, and the rack 4 is installed on the lower side of the wheel groove 3. The wheel surface 231 of the track wheel 23 is a gear structure, and the track wheel 23 rolls on the rack 4. Through the above structure, it is prevented that the track wheel 23 slips on the track structure during dredging, and a stable and reliable driving force is provided.

[0036] In Figure 5 , the support member 2 is embedded in the inner wall of the concrete-structured culvert 1, and the rack 4 is welded in the wheel groove 3 of the support member 2. After the culvert 1 is installed, the track structure is formed, and there is no need to install the track structure additionally, which makes it more convenient to install the dredging device of the present application later.

[0037] In order to prevent the track wheel 23 from bouncing on the rack 4 during dredging movement, a plurality of pressing wheels 40 are installed on the top of the frame 10. By pressing the pressing wheels 40 against the top of the culvert 1, the frame 10 is limited.

[0038] In this embodiment, refer to Figure 3 and 4 , there are 4 pressing wheels 40 provided. The pressing wheel 40 includes a bracket 41 and a wheel body 42, and the wheel body 42 is rotatably installed on the bracket 41.

[0039] Refer to Figure 2 and 4 and 7. A front shovel 34 is installed at the front end of the silt bin 33. The front shovel 34 expands outward in a horn shape. A plurality of limiting wheels 36 are installed on the outer walls on both sides of the dredging bucket 30. By installing the horn-shaped front shovel 34, it is convenient to scoop up silt and narrow the width of the silt bin 33. After narrowing, the limiting wheels 36 are installed. During the dredging operation, the front shovel 34 abuts against the bottom wall and the left and right side walls of the culvert box, and the limiting wheels 36 on both sides abut against the left and right side walls of the culvert box, so that the dredging bucket 30 is more stable.

[0040] Refer to Figure 2 , in order to prevent floating objects from flowing downstream during the dredging process, a filter screen 321 is installed at the rear end of the flow-through bin 32.

[0041] Refer to Figure 7 , the front shovel 34 and the collecting hopper 35 are respectively detachably installed on both sides of the silt bin 33, so that the installation positions of the front shovel 34 and the collecting hopper 35 can be switched according to needs.

[0042] Specifically, longitudinal card slots are respectively arranged at the front and rear ends of the silt bin 33, and the front shovel 34 and the collecting hopper 35 are respectively clamped in the card slots through flange rings.

[0043] Embodiment 2: On the basis of Embodiment 1, refer to Figure 1 and 2 and 4. It further includes a pulverizing device 50. The pulverizing device 50 pulverizes the lumpy silt to facilitate suction into the mud suction device 80.

[0044] Specifically, refer to Figure 4 , the pulverizing device 50 includes a second driver 51 and a first longitudinal shaft 54. The second driver 51 is installed on the frame 10. The upper end of the first longitudinal shaft 54 is fixedly connected to the output shaft of the second driver 51. The lower end of the first longitudinal shaft 54 extends into the silt bin 33, and pulverizing rods 55 are installed on the first longitudinal shaft 54 inside the silt bin 33. The second driver 51 drives the first longitudinal shaft 54 to rotate, thereby driving the pulverizing rods 55 to rotate, so as to pulverize the lumpy silt.

[0045] In this embodiment, the second driver 51 adopts a reduction motor. Refer to Figure 4, an upper bearing seat 52 is installed on the frame 10, a lower bearing seat 53 is installed on the partition plate 31, and the first longitudinal shaft 54 is installed and connected to the upper bearing seat 52 and the lower bearing seat 53 for rotation.

[0046] Furthermore, the pulverizing device 50 further includes a second longitudinal shaft 56. The second longitudinal shaft 56 is rotationally connected to the frame 10 and the dredging bucket 30. The upper end of the second longitudinal shaft 56 is drivingly connected to the first longitudinal shaft 54 through a transmission structure, and the pulverizing rod 55 is also installed at the lower end of the second longitudinal shaft 56. By providing the second longitudinal shaft 56, a larger pulverizing operation area is provided.

[0047] The transmission structure includes gear transmission, chain transmission or belt transmission. In this embodiment, see Figure 4 , pulleys are respectively installed on the first longitudinal shaft 54 and the second longitudinal shaft 56, and the two pulleys are connected and driven by a transmission belt 57. The lumpy sludge is pulverized by the low-speed stirring of the pulverizing rod 55.

[0048] Embodiment 3: Based on Embodiment 1 or Embodiment 2, see Figure 6 , a sludge pump 60 is installed at the small-mouth end of the collection hopper 35, and the outlet end of the sludge pump 60 is connected to a hose 82.

[0049] Furthermore, see Figure 2 、 6 , a monitoring and scanning device 70 is also installed on the frame 10 for observing the inside of the culvert 1 and scanning the sludge. Specifically, the monitoring and scanning device 70 includes a camera and a lidar.

[0050] Embodiment 4: See Figure 6 , a method for online dredging of a water supply culvert, which adopts the described online dredging device for a water supply culvert. The dredging method includes the following steps: S1. Install the dredging device into the culvert 1, and place and support the driving device 20 on the track structure inside the culvert 1; S2. Install the collection hopper 35 at the rear end of the sludge bin 33, and then connect the collection hopper 35 to the mud suction device 80 through a hose 82; inspection wells are arranged at intervals on the culvert 1, and the power supply cable 81 and the hose 82 pass through the inspection wells; the power supply cable 81 and the hose 82 have a long length margin to ensure the connection of the power supply cable 81 and the hose 82 when the dredging device moves; S3. Start the driving device 20 to drive the frame 10 to move along the length direction of the culvert 1. During this process, the silt located at the bottom of the culvert 1 is shoveled into the silt bin 33 by the silt cleaning bucket 30 for collection. After that, the mud suction device 80 is started, and a negative pressure is generated in the collection hopper 35. Under the action of the mud suction device 80, the silt enters the mud suction device 80 through the hose 82, and the water flow on the upper side flows downstream through the overflow chamber 32 without interruption; S4. After the silt cleaning is completed, disassemble the collection hopper 35 and the hose 82, and let the water flow through the overflow chamber 32 and the silt bin 33, waiting for the next use.

Claims

1. An on-line silt cleaning device for a water supply culvert, characterized in that: It includes a frame (10), a driving device (20) and a dredging bucket (30). The driving device (20) is installed on the frame (10). The frame (10) is guided to move along the length direction of the culvert (1) on the track structure inside the culvert (1) through the driving device (20). The dredging bucket (30) is installed on the lower side of the frame (10). A partition plate (31) is installed in the middle of the dredging bucket (30). The partition plate (31) divides the interior of the dredging bucket (30) into a flow-through chamber (32) and a sludge chamber (33). The flow-through chamber (32) runs through from front to back. A collecting hopper (35) is installed at the rear end of the sludge chamber (33). In the use state, the collecting hopper (35) is connected to a mud suction device (80) through a hose (82).

2. The on-line silt cleaning device for a water supply culvert according to claim 1, characterized in that: The driving device (20) includes at least two rotating shafts (22) and at least one first driver (25). The rotating shafts (22) are installed on the frame (10) through two bearing seats (21). Track wheels (23) are respectively installed at both ends of the rotating shafts (22). The track wheels (23) are placed on the track structures on the upper sides of the inner side walls of the culvert (1). The first driver (25) is installed on the frame (10). The first driver (25) is in transmission connection with the rotating shafts (22).

3. The on-line silt cleaning device for a water supply culvert according to claim 2, characterized in that: The track structure includes a support member (2) and a rack (4). Support members (2) are installed on the upper sides of the inner side walls of the culvert (1). The inner sides of the support members (2) have wheel grooves (3). A rack (4) is installed on the lower side of the wheel grooves (3). The wheel surface (231) of the track wheel (23) is a gear structure. The track wheel (23) rolls on the rack (4).

4. The on-line silt cleaning device for a water supply culvert according to claim 3, characterized in that: A plurality of pressing wheels (40) are installed on the top of the frame (10).

5. The on-line silt cleaning device for a water supply culvert according to claim 1, characterized in that: It further includes a dispersing device (50). The dispersing device (50) includes a second driver (51) and a first longitudinal shaft (54). The second driver (51) is installed on the frame (10). The upper end of the first longitudinal shaft (54) is fixedly connected to the output shaft of the second driver (51). The lower end of the first longitudinal shaft (54) extends into the sludge chamber (33). Dispersing rods (55) are installed on the first longitudinal shaft (54) inside the sludge chamber (33).

6. The on-line silt cleaning device for a water supply culvert according to claim 5, characterized in that: The dispersing device (50) further includes a second longitudinal shaft (56). The second longitudinal shaft (56) is rotationally connected to the frame (10) and the dredging bucket (30). The upper end of the second longitudinal shaft (56) is in transmission connection with the first longitudinal shaft (54) through a transmission structure. The dispersing rods (55) are also installed at the lower end of the second longitudinal shaft (56).

7. An on-line silt cleaning device for a water supply culvert according to claim 1, characterized in that: A front shovel (34) is installed at the front end of the sludge chamber (33). The front shovel (34) expands outwards in a horn shape. A plurality of limiting wheels (36) are installed on the outer side walls of both sides of the dredging bucket (30).

8. The on-line silt cleaning device for a water supply culvert according to claim 1, characterized in that: A filter screen (321) is installed at the rear end of the flow-through chamber (32).

9. The online silt cleaning device for a water supply culvert according to claim 1, wherein: A sludge pump (60) is installed at the small-mouth end of the collecting hopper (35). The outlet end of the sludge pump (60) is connected to the hose (82).

10. A method for online dredging of a water supply culvert, characterized in that: Adopting an on-line dredging device for a water supply culvert according to any one of claims 1-9, the dredging method includes the following steps: S1. Install the dredging device into the culvert (1), and place and support the driving device (20) on the track structure inside the culvert (1). S2. Install the collecting hopper (35) at the rear end of the silt bin (33), and then connect the collecting hopper (35) to the mud suction device (80) through a hose (82). S3. Start the driving device (20) to drive the frame (10) to move along the length direction of the culvert (1). During this process, the silt at the bottom of the culvert (1) is shoveled into the silt bin (33) for collection by the dredging bucket (30). Then, the mud suction device (80) is started, a negative pressure is generated in the collecting hopper (35), and under the action of the mud suction device (80), the silt enters the mud suction device (80) through the hose (82), and the water flow on the upper side flows downstream through the overflow bin (32). S4. After the dredging is completed, disassemble the collecting hopper (35) and the hose (82), and the water flows through the overflow bin (32) and the silt bin (33).

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