A water conservancy gallery drainage dredging structure and a method for using the same

Abstract

The application provides a water conservancy gallery drainage dredging structure and a use method thereof. The dredging structure is integrated with a vehicle body adapted to a narrow space, replaces manual entry into a water conservancy gallery to complete dredging work, effectively reduces the labor intensity of manual dredging, and avoids the operation safety risk in a closed and humid environment. A reducer motor drives a shovel to realize mechanical shoveling and feeding of the accumulated material. A driving motor drives a stirring and separating roller to disperse and process the accumulated material. The accumulated material that is hardened and cemented can be pretreated, and equipment blockage in the dredging process is avoided. The accumulated material is separated by a filter screen, and a water pump and a spray pipe are used for spraying assistance. The separation and processing effect of the accumulated material is improved, and the dredging work is continuously processed without additional transfer and screening treatment. The efficiency and overall processing effect of the water conservancy gallery dredging work are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of drainage and dredging technology for hydraulic engineering corridors, and in particular to a drainage and dredging structure for hydraulic engineering corridors and its application method. Background Technology

[0002] Hydraulic corridors are core underground / semi-underground passages in water conservancy and hydropower projects (such as dams and hydropower stations) that serve functions such as drainage and flood discharge, equipment inspection, and seepage monitoring. These passages are typically characterized by narrow cross-sections (usually 1-3m wide and 2-4m high) and a damp, enclosed environment. During long-term operation, the water flow within the corridor continuously carries silt, gravel, and debris, gradually forming a silt layer of varying thickness. Long-term accumulation of silt can harden and compact, significantly reducing the corridor's drainage capacity and, in severe cases, even blocking the passage. Furthermore, the silt load increases the structural pressure on the corridor lining, leading to potential engineering hazards such as cracking and leakage. Therefore, regular dredging of hydraulic corridors is a necessary part of the operation and maintenance of water conservancy projects.

[0003] Currently, dredging operations in hydraulic engineering corridors largely rely on manual entry, using shovels and other tools for excavation and cleaning. Due to the narrow space of the corridors, manual dredging has a limited operational range, extremely high labor intensity, and very low efficiency. Furthermore, the enclosed and damp environment poses safety risks such as oxygen deficiency and the accumulation of harmful gases, making it only suitable for small-scale emergency cleaning and unable to meet the needs of routine, large-scale corridor dredging. Existing conventional dredging equipment is mostly adapted to open rivers and large canals, but its large size prevents it from entering the narrow interiors of hydraulic engineering corridors. Some small dredging devices only have basic digging functions and cannot pre-treat hardened silt, nor do they have the ability to break up, screen, or separate solids and liquids from the silt. Equipment blockages are common during dredging, and the cleaned silt requires additional transportation and screening, resulting in poor continuity and treatment effectiveness, failing to efficiently meet the dredging needs of hydraulic engineering corridors. Summary of the Invention

[0004] The purpose of this invention is to provide a drainage and dredging structure for hydraulic tunnels, thereby improving the dredging efficiency of hydraulic tunnels.

[0005] In accordance with the above objectives, the present invention provides a drainage and dredging structure for hydraulic corridors, comprising a vehicle body, an open-top housing fixedly mounted on the top of the vehicle body, a bucket rotatably mounted on the front side of the housing, and a geared motor fixedly mounted on the housing for driving the bucket to rotate; a mixing and separating roller rotatably mounted inside the housing, a drive motor fixedly mounted on the outside of the housing for driving the mixing and separating roller to rotate, a filter screen installed below the mixing and separating roller inside the housing, a water tank fixedly mounted on the vehicle body, a water pump installed inside the water tank, and a spray pipe installed at the top of the housing, the spray pipe being connected to the water pump.

[0006] Furthermore, the side of the chassis is provided with a first discharge port and a second discharge port on the upper and lower sides of the filter screen, respectively, and both the first discharge port and the second discharge port are detachably fitted with sealing plugs.

[0007] Furthermore, the bottom of the machine casing gradually decreases in height from all sides to the second discharge port.

[0008] Furthermore, a fixed base is fixedly installed on the front side of the chassis, the bucket is rotatably mounted on the fixed base, the geared motor is fixedly mounted on the outside of the fixed base, and the rotating shaft of the bucket is fixedly connected to the output shaft of the geared motor.

[0009] Furthermore, the stirring and separating roller includes a rotating shaft on which multiple stirring blades are arranged in an array.

[0010] Furthermore, the bottom end of the spray pipe is provided with multiple spray ports along its axial direction, and each spray port is equipped with a spray nozzle.

[0011] Furthermore, a spraying assembly is fixedly installed on the front side of the bucket, and the water pump is connected to the spray pipe and the spraying assembly respectively through a three-way valve.

[0012] Furthermore, the spray assembly includes a connecting plate, the inlet of which is connected to the three-way valve via a flexible hose, and multiple nozzles are arrayed on the front side of the connecting plate.

[0013] Furthermore, a limiting ring is provided at the top of the vehicle body, and a counterweight is embedded in the limiting ring.

[0014] A method for using a drainage and dredging structure for a hydraulic gallery, based on the aforementioned drainage and dredging structure, specifically includes the following steps: S1: Start the vehicle and make it move intermittently along the hydraulic corridor. During the movement of the vehicle, control the three-way valve to connect the connecting plate with the water pump to soften the hardened silt. S2: After the vehicle body moves forward a certain distance, the bucket is turned over by starting the reduction motor to dump the silt into the machine box; S3: Start the drive motor to drive the stirring and separating roller to stir and separate the silt. At the same time, control the three-way valve to connect with the spray pipe to flush the solidified silt. After being screened by the filter screen, the silt is discharged from the first discharge port and the second discharge port respectively.

[0015] The technical solution of this invention utilizes an integrated dredging structure mounted on a vehicle body adapted to narrow spaces, replacing manual labor in entering hydraulic channels to complete dredging operations. This effectively reduces the labor intensity of manual dredging and avoids the safety risks of operating in enclosed and humid environments. A geared motor drives the bucket to mechanically excavate and load silt, while a drive motor-driven mixing and separating rollers further disperse the silt, pre-treating hardened silt and preventing equipment blockage during dredging. Simultaneously, a filter screen separates the silt into solid and liquid components, and the addition of a water pump and spray pipes enhances the separation effect, eliminating the need for additional transfer and screening. This achieves continuous dredging operations, significantly improving the efficiency and overall treatment effect of hydraulic channel dredging. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a cross-sectional view of the chassis and water tank in this invention.

[0019] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1-Car body, 2-Chassis, 3-Bucket, 4-Fixed seat, 5-Gear motor, 6-Water tank, 7-Water pump, 8-Three-way valve, 9-Spray pipe, 10-Spray nozzle, 11-Rotating shaft, 12-Agitator blade, 13-Drive motor, 14-Filter screen, 15-First discharge port, 16-Second discharge port, 17-Sealing plug, 18-Connecting plate, 19-Limiting ring, 20-Counterweight, 21-Spray head. Detailed Implementation

[0021] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1 like Figures 1-3 As shown, the present invention provides a drainage and dredging structure for a hydraulic tunnel, including a vehicle body 1. A top-open casing 2 is fixedly installed on the top of the vehicle body 1. An agitator and separator roller is rotatably mounted inside the casing 2. A drive motor 13 for driving the agitator and separator roller is fixedly installed on the outside of the casing 2. The agitator and separator roller includes a rotating shaft 11 with multiple agitator blades 12 arranged in an array on the rotating shaft 11. A filter screen 14 is installed below the agitator and separator roller inside the casing 2. The filter screen 14 is inclined inside the casing 2. The bottom of the casing 2 extends from the perimeter to the second discharge point. The height of the inlet 16 gradually decreases, and the filter screen 14 is parallel to the inner bottom surface of the casing 2. The side of the casing 2 is provided with a first discharge port 15 and a second discharge port 16 on the upper and lower sides of the filter screen 14, respectively. The first discharge port 15 and the second discharge port 16 are detachably installed with a sealing plug 17. The discharge port can be opened and closed by removing or inserting the sealing plug 17, which facilitates the discharge of materials above and below the filter screen 14. During operation, the rotating shaft 11 drives the stirring blades 12 to break up blocky sludge, preventing the filter screen 14 from being blocked by large particles, and intercepting gravel through the filter screen 14.

[0025] A mounting base 4 is fixedly installed on the front side of the casing 2. A bucket 3 is rotatably mounted on the mounting base 4. A geared motor 5 for driving the bucket 3 to rotate is installed on the outside of the mounting base 4. The rotating shaft of the bucket 3 is fixedly connected to the output shaft of the geared motor 5. The geared motor 5 should be selected to meet the requirements of the bucket 3 for tipping and slewing under heavy load conditions. In order to ensure that as much of the silt scooped up by the bucket 3 falls into the casing 2 as possible, the casing 2 can be designed with a front-wide and rear-narrow structure, that is, the width of the side closer to the bucket 3 is greater than the width of the side farther away from the bucket 3, so as to maximize the amount of silt scooped up by the bucket 3.

[0026] A water tank 6 is fixedly installed on the vehicle body 1, and a water pump 7 is installed inside the water tank 6. A spray pipe 9 is installed at the top inside the engine compartment 2. A spraying assembly is fixedly installed on the front side of the bucket 3. The water pump 7 is connected to the spray pipe 9 and the spraying assembly through a three-way valve 8. Multiple spray nozzles are opened along the axial direction at the bottom end of the spray pipe 9, and each spray nozzle is equipped with a spray nozzle 10 to flush away the solidified silt. The spraying assembly includes a connecting plate 18. The water inlet of the connecting plate 18 is connected to the three-way valve 8 through a flexible hose. Multiple nozzles 21 are arranged in an array on the front side of the connecting plate 18. During operation, the nozzles 21 on the front side of the connecting plate 18 spray high-pressure water towards the front of the bucket 3 to soften the hardened silt and reduce digging resistance.

[0027] The top of the vehicle body 1 is provided with a limiting ring 19, and a counterweight 20 is embedded in the limiting ring 19 to prevent the vehicle body 1 from tipping forward.

[0028] Working principle: When in use, the vehicle body 1 is started and travels intermittently along the hydraulic corridor for a certain distance (the movement stops when the reduction motor drives the bucket to tilt). The reduction motor 5 drives the bucket 3 to tilt, pouring the silt into the machine box 2. At this time, the water pump 7 is turned on, and the water pump 7 delivers the water in the water tank 6 to the three-way valve 8. The three-way valve 8 delivers the water to the spray pipe 9 and the connecting plate 18. The connecting plate 18 sprays water through the nozzle 21 to soften the hardened silt. The spray pipe 9 sprays water through the spray nozzle 10. At the same time, the drive motor 13 is turned on, driving the mixing and separating roller to rotate. The mixing blades 12 on the rotating shaft 11 mix the silt. The filter screen 14 intercepts the gravel. The silt passes through the filter screen 14, separating the gravel and silt, which is convenient for subsequent cleaning.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drainage and dredging structure for a hydraulic corridor, characterized in that, The vehicle includes a body, with an open-top housing fixedly mounted on its top. A bucket is rotatably mounted on the front of the housing, and a geared motor for driving the bucket to rotate is fixedly mounted on the housing. A mixing and separating roller is rotatably mounted inside the housing, and a drive motor for driving the mixing and separating roller is fixedly mounted on the outside of the housing. A filter screen is installed below the mixing and separating roller inside the housing. A water tank is fixedly mounted on the vehicle body, and a water pump is installed inside the water tank. A spray pipe is installed at the top of the housing, and the spray pipe is connected to the water pump.

2. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, The side of the chassis is provided with a first discharge port and a second discharge port on the upper and lower sides of the filter screen, respectively. Both the first discharge port and the second discharge port are detachably fitted with sealing plugs.

3. The drainage and dredging structure for hydraulic corridors according to claim 2, characterized in that, The bottom of the machine casing gradually decreases in height from all sides to the second discharge port.

4. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, A fixed base is fixedly installed on the front side of the chassis, the bucket is rotatably mounted on the fixed base, the geared motor is fixedly mounted on the outside of the fixed base, and the rotating shaft of the bucket is fixedly connected to the output shaft of the geared motor.

5. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, The stirring and separating roller includes a rotating shaft, on which multiple stirring blades are arranged in an array.

6. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, The bottom end of the spray pipe has multiple spray ports along its axial direction, and each spray port is equipped with a spray nozzle.

7. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, A spraying assembly is fixedly installed on the front side of the bucket, and the water pump is connected to the spray pipe and the spraying assembly through a three-way valve.

8. The drainage and dredging structure for hydraulic corridors according to claim 7, characterized in that, The spraying assembly includes a connecting plate, the inlet of which is connected to the three-way valve via a flexible hose, and multiple nozzles are arrayed on the front side of the connecting plate.

9. The drainage and dredging structure for hydraulic corridors according to claim 1, characterized in that, The top of the vehicle body is provided with a limiting ring, and a counterweight is embedded in the limiting ring.

10. A method of using a drainage and dredging structure for a hydraulic gallery, characterized in that, The hydraulic gallery drainage and dredging structure based on any one of claims 1-9 is implemented by the following steps: S1: Start the vehicle and make it move intermittently along the hydraulic corridor. During the movement of the vehicle, control the three-way valve to connect the connecting plate with the water pump to soften the hardened silt. S2: After the vehicle body moves forward a certain distance, the bucket is turned over by starting the reduction motor to dump the silt into the machine box; S3: Start the drive motor to drive the stirring and separating roller to stir and separate the silt. At the same time, control the three-way valve to connect with the spray pipe to flush the solidified silt. After being screened by the filter screen, the silt is discharged from the first discharge port and the second discharge port respectively.

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