Hydraulic engineering desilting assembly, equipment and desilting method

Abstract

The invention discloses a hydraulic engineering desilting assembly, equipment and a desilting method, and relates to the technical field of hydraulic engineering desilting. The hydraulic engineering desilting assembly comprises a bottom frame, a slurry pump with a water inlet extending into the bottom frame is fixedly mounted at the top of the bottom frame, and a plurality of first perforated plates are fixed in the bottom frame; a plurality of second punching plates staggered with the first punching plates are slidably connected into the bottom frame, the adjacent first punching plates and second punching plates make contact with each other, a lifting unit is arranged at the top of the bottom frame, the first punching plates and the second punching plates partition the interior of the bottom frame, and the second punching plates are matched with the first punching plates to filter broken stones and rhizomes in sludge when being static. The second punching plate is driven by the lifting unit to ascend and descend, on one hand, filtered broken stone is lifted upwards and discharged out of a ditch, and therefore the dredging effect is remarkably improved; and on the other hand, the first punching plate is mutually rubbed, the plant rhizomes in the sludge are sheared and crushed, and the crushed rhizomes can be smoothly pumped and discharged by a part mud pump along with the sludge.

Description

Technical Field

[0001] This invention relates to the field of dredging technology in water conservancy projects, and in particular to a dredging component, equipment, and dredging method for water conservancy projects. Background Technology

[0002] Water conservancy projects refer to a general term for various engineering facilities constructed to control, regulate, guide, develop, manage, and protect surface water and groundwater in nature in order to achieve the purpose of eliminating harm and promoting benefits.

[0003] Ditches are common waterways in water conservancy projects, built for irrigation and drainage. As water and impurities in the surrounding environment accumulate and form silt, they can become blocked. To ensure their drainage capacity, they need to be dredged regularly.

[0004] Traditional mud pump dredging equipment faces significant challenges in dredging operations of small, shallow, and narrow ditches. These ditches are often built along roadsides, with their outer edges frequently adjacent to wasteland. This unique geographical environment results in complex silt composition, with stones from the road and weed roots from the wasteland easily mixing into the ditches and becoming entangled with the silt. When traditional dredging equipment uses a mud pump to suck up the silt, these impurities cause double damage to the equipment: firstly, if the size of the stones exceeds the mud pump's throughput capacity, it will directly wear down the impeller and clog the pipes; secondly, weed roots are flexible and easily entangle the pump's rotating parts, leading to mechanical failures or power loss. Therefore, it is evident that traditional dredging equipment struggles to balance dredging efficiency and equipment safety when dealing with complex silt containing stones and plant roots, thus necessitating improvements to existing devices. Summary of the Invention

[0005] The purpose of this invention is to address the problem that traditional dredging equipment struggles to balance dredging efficiency and equipment safety when dealing with complex silt containing stones and plant roots, and to propose a dredging component, equipment, and dredging method for water conservancy projects.

[0006] To achieve the above objectives, the present invention employs the following technology: a dredging component for water conservancy projects, comprising a base frame, a mud pump with an inlet extending into the base frame fixedly installed on the top of the base frame, a plurality of perforated plates I fixed inside the base frame, a plurality of perforated plates II slidably connected inside the base frame and arranged alternately with the perforated plates I, adjacent perforated plates I and perforated plates II contacting each other, and a lifting unit provided on the top of the base frame;

[0007] The perforated plate one and perforated plate two divide the interior of the bottom frame;

[0008] When the perforated plate 2 is stationary, it works in conjunction with the perforated plate 1 to filter out gravel and roots in the silt.

[0009] When the lifting unit moves the second perforating plate up and down, the second perforating plate, in conjunction with the first perforating plate, cuts off the rootstock and conveys the gravel upwards.

[0010] As a further description of the above technical solution: it also includes a cutting unit, the cutting unit including a connecting rod slidably connected to the side of the second perforated plate near the first perforated plate, a blade fixedly connected to the top of the connecting rod, and staggered sawtooth grooves opened on both sides of the inner wall of the bottom frame, with the two ends of the connecting rod respectively embedded in the two sawtooth grooves.

[0011] As a further description of the above technical solution: the lifting unit includes a second motor fixedly installed on the top of the base frame, a turntable fixed to the end of the drive shaft of the second motor, a connecting frame fixed to the top of the second perforated plate, and a slide rod embedded in the connecting frame fixed to one side of the turntable.

[0012] As a further description of the above technical solution: a second guide pipe connected to the outlet of the mud pump is fixed on one side of the bottom frame, and a first guide pipe for discharging crushed stone is fixed on the other side of the bottom frame.

[0013] This application also provides a dredging device for water conservancy projects, including dredging components for water conservancy projects;

[0014] The base has a housing fixed to its top, and the bottom frame is height-adjustably fixed inside the housing. A drive assembly is installed inside the housing.

[0015] As a further description of the above technical solution: the drive assembly includes a motor fixedly mounted on a base, two sleeves rotatably connected to the base, one of the sleeves being connected to the drive shaft of the motor via a belt, two shafts being slidably connected inside the sleeve, rollers being fixed to the outer ends of the shafts, and a baffle being fixed to one side of the rollers.

[0016] As a further description of the above technical solution: it also includes a positioning mechanism, which includes two bidirectional lead screws rotatably connected to both sides of the housing, and two symmetrically arranged sliders slidably connected to the housing are externally threaded to the bidirectional lead screws. A connecting frame is rotatably connected between two rollers located on the same side of the housing, and a push plate is hinged between the sliders and the connecting frame.

[0017] As a further description of the above technical solution: a guide plate is rotatably connected to one end of the bottom frame, and a buckle for fixing the guide plate to the bottom frame is installed on the rotating shaft of the guide plate.

[0018] As a further description of the above technical solution: it also includes a cutting component, which includes a blade fixed to one side of the baffle, and a mating block fixed to the outside of the connecting frame. When the blade and the mating block intersect, the gathered rhizomes are cut off.

[0019] A method for dredging water conservancy projects includes the following steps:

[0020] S1. Adjust the height of the bottom frame according to the width and depth of the ditch, and adjust the distance between the two sets of rollers and the outer shell through the positioning mechanism;

[0021] S2. After placing the dredging device on the ditch, the two sets of rollers are respectively set up on the two sides of the ditch, the baffle is positioned against the inner wall of the ditch on both sides, and the bottom surface of the bottom frame is in contact with the bottom surface of the ditch.

[0022] S3. The dredging device moves over the ditch, shoveling the silt into the bottom frame, and then starts the mud pump to extract the silt that has been filtered by the perforated plate one and the perforated plate two from the ditch.

[0023] S4. The lifting unit drives the perforated plate to rise and fall, so that the gravel filtered out of the sludge is conveyed upward and discharged. At the same time, the cutting unit crushes the plant roots and stems in the sludge.

[0024] S5. readjust the distance between the roller and the outer shell, adjust the position of the bottom frame in the ditch, and repeat the above operation until the silt in the ditch is cleared.

[0025] In summary, due to the adoption of the above-mentioned technology in the water conservancy engineering dredging component, equipment, and dredging method, the beneficial effects of this invention are:

[0026] Firstly, the perforated plate 2 in this application can not only form a filter barrier with the perforated plate 1 to effectively filter the gravel in the silt and prevent the gravel from clogging or even damaging the mud pump, but also move up and down under the drive of the lifting unit. This lifting action lifts the filtered gravel upward and discharges it from the ditch, thereby significantly improving the dredging effect. On the other hand, during the lifting process, the perforated plate 2 rubs against the perforated plate 1, which can shear and break the plant roots in the silt, so that the broken roots can be smoothly extracted and discharged by the mud pump along with the silt, thereby effectively solving the problem of plant roots getting entangled in the rotating parts of the pump body during the dredging process.

[0027] Secondly, the second perforated plate can clean itself by rubbing against the first perforated plate, preventing the filter holes from becoming clogged. Moreover, the rising and falling of the second perforated plate can promote the flow of sludge from the filter holes at the top, further improving the anti-clogging effect. In addition, as the second perforated plate pushes the gravel upward, the gravel will be washed by the water flow from top to bottom after leaving the sludge layer and entering the clear water layer. The water flow washes away the sludge attached to the surface of the gravel, preventing the gravel from sticking to the inner wall of the first guide pipe, promoting the downward discharge of the gravel, and preventing the surface sludge from causing the gravel to stick to the first guide pipe, thereby improving the gravel cleaning effect.

[0028] Thirdly, this application can adapt to the needs of ditch operations of different widths by adjusting the spacing of the rollers, and is positioned by relying on the baffle support on the inner wall of the ditch, so that the device maintains a precise trajectory during the movement of the ditch, effectively avoiding the problem of operation misalignment caused by deviation, and significantly improving the efficiency and accuracy of dredging or maintenance work. Moreover, the two sets of rollers adopt an independent adjustable design, which can flexibly change the working position of the dredging components according to actual needs. Through regional and staged adjustment, it can not only achieve targeted dredging of specific areas of the ditch, but also seamlessly cover the entire bottom of the ditch through multiple moving operations, significantly improving the integrity and thoroughness of dredging operations, and solving the problem of dredging blind spots caused by the fixed working range of traditional equipment.

[0029] Fourth, by using the cutting component, vegetation clinging to the inner wall of the ditch can be picked up and cut off before the dredging component moves to the working position. This effectively prevents vegetation roots from entangled in key equipment components, reduces the risk of mechanical failure, and creates a smooth working environment for the subsequent dredging component. It also reduces equipment stagnation or efficiency loss caused by vegetation obstruction, ensuring a smooth and efficient dredging process. Attached Figure Description

[0030] Figure 1 An overall side view diagram provided according to an embodiment of the present invention is shown;

[0031] Figure 2 An overall bottom schematic diagram provided according to an embodiment of the present invention is shown;

[0032] Figure 3 A schematic diagram of the interior of the housing provided according to an embodiment of the present invention is shown;

[0033] Figure 4 A schematic diagram of a base provided according to an embodiment of the present invention is shown;

[0034] Figure 5 The present invention provides an embodiment of the invention. Figure 4 Enlarged view of point A in the middle;

[0035] Figure 6 A schematic diagram of a mud pump provided according to an embodiment of the present invention is shown;

[0036] Figure 7 The present invention provides an embodiment of the invention. Figure 6 Enlarged view at point B in the middle;

[0037] Figure 8 A schematic cross-sectional view of the bottom frame provided according to an embodiment of the present invention is shown;

[0038] Figure 9 A schematic diagram of a perforated plate 1 and a perforated plate 2 provided according to an embodiment of the present invention is shown;

[0039] Figure 10 The present invention provides an embodiment of the invention. Figure 9 Enlarged view at point C;

[0040] Figure 11 A schematic diagram of a cutting unit provided according to an embodiment of the present invention is shown;

[0041] Figure 12 A state switching diagram of perforated plate one and perforated plate two provided according to an embodiment of the present invention is shown.

[0042] Legend:

[0043] 10. Base; 11. Housing; 12. Drive assembly; 121. Motor 1; 122. Sleeve; 123. Shaft; 124. Roller; 125. Baffle;

[0044] Dredging Components: 21. Base Frame; 22. Mud Pump; 23. Perforated Plate 1; 24. Perforated Plate 2; 25. Lifting Unit; 251. Motor 2; 252. Turntable; 253. Connecting Frame; 254. Slide Rod; 26. Cutting Unit; 261. Connecting Rod; 262. Serrated Groove; 263. Blade; 27. Guide Pipe 1; 28. Guide Pipe 2;

[0045] Positioning mechanism: 31. Two-way lead screw; 32. Slider; 33. Push plate; 34. Connecting frame; 35. Cutting assembly; 351. Cutting head; 352. Mating block; 36. Guide plate; 37. Buckle. Detailed Implementation

[0046] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a clear and complete description of a dredging component, equipment, and dredging method for water conservancy projects according to the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. 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.

[0047] like Figures 1-12 As shown, the present invention provides a dredging device for water conservancy projects, including a base 10, a housing 11 fixed on the top of the base 10, and a drive assembly 12 for driving the device to move inside the housing 11.

[0048] Reference Figure 3 and Figure 4The drive assembly 12 includes a motor 121 fixedly mounted on the base 10. Two sleeves 122 are rotatably connected to the base 10. One of the sleeves 122 is connected to the drive shaft of the motor 121 via a belt. Two shafts 123 are slidably connected inside each sleeve 122. A roller 124 is fixed to the outer end of each shaft 123. The four rollers 124 are divided into left and right groups. When the motor 121 is started, it drives the sleeves 122 to rotate via the belt. The sleeves 122 drive the shafts 123 and rollers 124 to rotate, so that the dredging equipment can move forward to dredge. A baffle 125 is fixed to one side of the rollers 124.

[0049] Reference Figure 1 and Figure 2 It also includes a positioning mechanism and a dredging component. The positioning mechanism includes two bidirectional lead screws 31 that are rotatably connected to both sides of the housing 11. The external threads of the bidirectional lead screws 31 are connected to two symmetrically arranged sliders 32 that are slidably connected to the housing 11. The two sliders 32 are respectively engaged with two opposite threads on the bidirectional lead screws 31. A connecting frame 34 is rotatably connected between two rollers 124 located on the same side of the housing 11. A push plate 33 is hinged between the sliders 32 and the connecting frame 34. Rotating the bidirectional lead screws 31 can drive the two sliders 32 to move towards or away from each other, thereby supporting or pulling the connecting frame 34 through the push plate 33, so that the rollers 124 connected to the connecting frame 34 move away from or closer to the housing 11, thereby adjusting the distance between the rollers 124 and the housing 11.

[0050] During the process of adjusting the distance between the roller 124 and the outer casing 11 using the positioning mechanism, the roller 124 drives the shaft 123 to slide in the sleeve 122. The sleeve 122 and the shaft 123 always maintain a transmission state. By adjusting the position of the two sets of rollers 124, the two sets of rollers 124 can be supported on both sides of the ditch, so that the dredging equipment can be set up on the ditch for operation. After the rollers 124 are set up on the ditch, the baffle 125 fits against the inner wall of the ditch. The dredging equipment can move accurately along the ditch through the positioning of the baffle 125, effectively avoiding equipment deviation that would cause misalignment of the dredging operation area.

[0051] The positions of the two sets of rollers 124 can be adjusted independently through two positioning mechanisms. This design can adjust the position of the dredging components in the ditch when the dredging equipment is set up on the ditch. When the width of the ditch is greater than the dredging width of the dredging equipment during a single movement, the dredging equipment can perform dredging operations in multiple areas, so that the dredging range can seamlessly cover the bottom of the ditch, significantly improving the integrity and thoroughness of the dredging operation and solving the problem of blind spots in dredging caused by the fixed working range of traditional equipment.

[0052] Reference Figure 5Considering that vegetation around the ditch may climb onto the inner wall of the ditch and become entangled in the equipment during dredging, a cutting component 35 is provided on the roller 124 in front of the dredging equipment. The cutting component 35 includes a cutter head 351 fixed to one side of the baffle 125. The side of the cutter head 351 near the baffle 125 is set as an inclined surface. A mating block 352 is fixed to the outside of the connecting frame 34. When the roller 124 rolls and drives the baffle 125 to rotate, the cutter head 351 hooks up the roots of the vegetation climbing on the inner wall of the ditch through the inclined surface. When the cutter head 351 rotates with the baffle 125 and crosses with the mating block 352, it cuts off the roots and prevents the dredging equipment from being entangled by vegetation during subsequent movement.

[0053] The side of the cutter head 351 closest to the roller 124 contacts the side wall of the ditch and works together with the baffle 125 to provide positioning. Several cutter heads 351 are arranged in an equidistant circular array around the center point of the baffle 125 to prevent the baffle 125 from shifting during the movement of the dredging equipment, which would cause the cutter heads 351 to rub against the side wall of the ditch.

[0054] Reference Figure 8 The dredging assembly includes a height-adjustable base frame 21 fixed inside the outer casing 11. The base frame 21 can be adjusted in height to contact the bottom of the ditch so as to dredge ditches of different depths. A mud pump 22 with an inlet extending into the base frame 21 is fixedly installed on the top of the base frame 21. Several perforated plates 23 are fixed inside the base frame 21, arranged at equal intervals and with increasing heights. Several perforated plates 24 are slidably connected inside the base frame 21, arranged alternately with the perforated plates 23. Adjacent perforated plates 23 and perforated plates 24 are in contact with each other. Both perforated plates 24 and perforated plates 23 are inverted "L" shapes with tilted tops.

[0055] A second guide pipe 28 connected to the outlet of the mud pump 22 is fixed on one side of the bottom frame 21, and a first guide pipe 27 for discharging crushed stone is fixed on the other side of the bottom frame 21.

[0056] The perforated plate 23 and the perforated plate 24 form a filter barrier that separates the interior of the bottom frame 21. When the perforated plate 24 is stationary, it works with the perforated plate 23 to filter gravel and roots in the silt. The mud pump 22 is started to extract the water and silt filtered by the perforated plate 24 and the perforated plate 23 and discharge it to the outside through the guide pipe 28 to achieve dredging of the ditch.

[0057] The top of the bottom frame 21 is provided with a lifting unit 25 for driving the second perforated plate 24 to move up and down. When the lifting unit 25 drives the second perforated plate 24 to move up and down, the second perforated plate 24 and the first perforated plate 23 scrape each other to cut and break the plant roots and stems filtered out of the sludge, so that the broken roots and stems can be smoothly pumped out and discharged along with the sludge by the component mud pump 22.

[0058] Reference Figure 12The gravel filtered by perforated plate 1 23 and perforated plate 24 is blocked by perforated plate 1 23 at the top of perforated plate 24. Perforated plate 24 moves upward to lift the gravel. When perforated plate 24 rises to its highest point, the gravel slides down the top slope of perforated plate 24 onto perforated plate 1 23 and is blocked by another perforated plate 24. Then, when perforated plate 24 descends to its lowest point, the gravel slides down the top slope of perforated plate 1 23 onto the top of perforated plate 24. This process is repeated until the gravel is conveyed upward until it falls into the guide pipe 1 27 and slides out. This design allows the equipment to be free from gravel obstruction during dredging and to discharge the gravel separately, thus improving the dredging effect of the ditch.

[0059] The mutual rubbing of the perforated plate 24 and the perforated plate 23 can also achieve mutual cleaning, reducing the probability of clogging. Furthermore, the lifting and lowering of the perforated plate 24 can promote the flow of sludge from the filter holes at its top through inertia and the impact force of water, further improving the anti-clogging effect.

[0060] During the process of pushing the crushed stone upwards by the perforated plate 24, the crushed stone will be washed by the water flow from top to bottom after leaving the silt layer and entering the clear water layer. The water flow washes away the silt attached to the surface of the crushed stone, which can prevent the crushed stone from sticking to the inner wall of the guide pipe 27, promote the downward discharge of the crushed stone, and thus improve the cleaning effect of the crushed stone.

[0061] Reference Figure 10 and Figure 11 To further improve the ability of the dredging component to cut and crush roots and stems, a cutting unit 26 is also included. The cutting unit 26 includes a connecting rod 261 slidably connected to the side of the perforated plate 24 near the perforated plate 23. A blade 263 is fixedly connected to the top of the connecting rod 261. The inner walls of the bottom frame 21 are provided with staggered sawtooth grooves 262 on both sides. The two ends of the connecting rod 261 are respectively embedded in the two sawtooth grooves 262. The perforated plate 24 moves upward, causing the connecting rod 261 to slide between the two sawtooth grooves 262. The two staggered sawtooth grooves 262 push the connecting rod 261 back and forth, so that the connecting rod 261 drives the blade 263 to slide left and right as it moves upward on the surface of the perforated plate 23. The blade 263 cuts the roots and stems embedded in the filter holes of the perforated plate 23, thereby improving the root and stem crushing effect.

[0062] Reference Figure 8 and Figure 9The lifting unit 25 includes a second motor 251 fixedly installed on the top of the base frame 21. A turntable 252 is fixed to the end of the drive shaft of the second motor 251. A connecting frame 253 is fixed to the top of the second perforated plate 24. A slide rod 254 embedded in the connecting frame 253 is fixed to one side of the turntable 252. When the second motor 251 runs, it drives the turntable 252 to rotate. When the turntable 252 drives the slide rod 254 to rotate from the lowest point to the highest point, the slide rod 254 slides in the connecting frame 253 and lifts the connecting frame 253 upward. When the slide rod 254 rotates from the highest point to the lowest point, the slide rod 254 slides in the connecting frame 253 and presses the connecting frame 253 downward. In this way, the connecting frame 253 drives the second perforated plate 24 to reciprocate up and down.

[0063] Reference Figure 7 To further eliminate blind spots in dredging, a guide plate 36 is rotatably connected to one end of the bottom frame 21. A buckle 37 is installed on the rotating shaft of the guide plate 36 to fix the guide plate 36 to the bottom frame 21. The buckle 37 can fix the guide plate 36 to the bottom frame 21 after adjusting the opening angle. When the dredging equipment moves the bottom frame 21, the guide plate 36 can hang down the silt on the inner wall of the ditch and guide this part of the silt, together with the silt that cannot be scooped up by the bottom frame 21 near the inner wall of the ditch, into the bottom frame 21, thereby improving the comprehensiveness of dredging.

[0064] A method for dredging water conservancy projects includes the following steps:

[0065] S1. Adjust the height of the bottom frame 21 according to the width and depth of the ditch, and adjust the distance between the two sets of rollers 124 and the outer shell 11 through the positioning mechanism;

[0066] S2. After placing the dredging device on the ditch, the two sets of rollers 124 are respectively set on the two sides of the ditch, the baffle 125 is positioned against the inner wall of the two sides of the ditch, and the bottom surface of the bottom frame 21 is in contact with the bottom surface of the ditch.

[0067] S3. The dredging device moves over the ditch, shoveling the silt into the bottom frame 21, and starts the mud pump 22 to pump the silt filtered by the perforated plate 1 23 and the perforated plate 24 out of the ditch.

[0068] S4. The lifting unit 25 drives the perforated plate 24 to rise and fall, so that the gravel filtered out of the sludge is conveyed upward and discharged. At the same time, the cutting unit 26 crushes the plant roots and stems in the sludge.

[0069] S5. readjust the distance between the roller 124 and the outer casing 11, adjust the position of the bottom frame 21 in the ditch, and repeat the above operation until the silt in the ditch is cleared.

[0070] Working principle: In the initial state, the two guide vanes 36 are in a closed state, and the bottom frame 21 is retracted inside the outer shell 11;

[0071] According to the width of the ditch, the positions of the two sets of rollers 124 are adjusted by two positioning mechanisms so that the dredging equipment can be set up on the ditch through the rollers 124 and the baffle 125 contacts the side walls of the ditch. Then, according to the depth of the ditch, the extension distance of the bottom frame 21 from the bottom of the base 10 is adjusted so that after the dredging equipment is set up on the ditch, the bottom frame 21 can contact the bottom of the ditch. After adjustment, the bottom frame 21 is fixed to the outer shell 11.

[0072] Then, the two guide vanes 36 are opened and fixed to the bottom frame 21 by the buckle 37;

[0073] After the dredging equipment is set up on the ditch, the motor 121 and the mud pump 22 are started. The motor 121 drives the sleeve 122 to rotate via the belt. The sleeve 122 drives the shaft 123 and the roller 124 to rotate, so that the dredging device moves on the ditch. When it moves, it drives the bottom frame 21 to scoop up the silt at the bottom of the ditch and let the silt enter the bottom frame 21. The mud pump 22 pumps out the silt that has been filtered by the perforated plate 24 and the perforated plate 23 to achieve dredging.

[0074] When plant roots or gravel are present in the silt, the second motor 251 is started to drive the turntable 252 to rotate. When the turntable 252 drives the slide rod 254 to rotate from the lowest point to the highest point, the slide rod 254 slides in the connecting frame 253 and lifts the connecting frame 253 upwards. When the slide rod 254 rotates from the highest point to the lowest point, the slide rod 254 slides in the connecting frame 253 and presses the connecting frame 253 downwards. In this way, the connecting frame 253 drives the second perforated plate 24 to move up and down repeatedly.

[0075] When the perforated plate 24 rises, it drives the connecting rod 261 upward, causing the connecting rod 261 to slide between the two serrated grooves 262. The two misaligned serrated grooves 262 push the connecting rod 261 back and forth, causing the connecting rod 261 to drive the blade 263 to slide left and right as it moves upward on the surface of the perforated plate 23. The blade 263 cuts the roots embedded in the filter holes of the perforated plate 23, preventing the roots from clogging the filter holes, and allowing the broken roots to be smoothly pumped out and discharged by the mud pump 22 along with the silt. On the other hand, The filtered gravel is blocked at the top of perforated plate 24 by perforated plate 23. Perforated plate 24 moves upward to lift the gravel. When perforated plate 24 rises to its highest point, the gravel slides down the top slope of perforated plate 24 onto perforated plate 23 and is blocked by another perforated plate 24. Then, when perforated plate 24 descends to its lowest point, the gravel slides down the top slope of perforated plate 23 onto the top of perforated plate 24. This process is repeated until the gravel is conveyed upward until it falls into the guide pipe 27 and slides out, thus achieving gravel filtration and cleaning.

[0076] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technical concept, to a water conservancy engineering dredging component, equipment, and dredging method, should be covered within the scope of protection of the present invention.

Claims

1. A dredging component for water conservancy projects, characterized in that, Includes a base frame (21), on the top of the base frame (21) a mud pump (22) with an inlet extending into the interior of the base frame (21) is fixedly installed, and a number of perforated plates (23) are fixed inside the base frame (21). A number of perforated plates (24) are slidably connected inside the base frame (21) and are arranged alternately with the perforated plates (23). The adjacent perforated plates (23) and perforated plates (24) are in contact with each other. A lifting unit (25) is provided on the top of the base frame (21). The perforated plate one (23) and perforated plate two (24) divide the interior of the bottom frame (21); When the perforated plate two (24) is stationary, it works in conjunction with the perforated plate one (23) to filter out gravel and roots in the silt; When the lifting unit (25) drives the second perforated plate (24) to move up and down, the second perforated plate (24) cooperates with the first perforated plate (23) to cut off the rootstock and transport the gravel upward.

2. The dredging component for water conservancy projects according to claim 1, characterized in that, It also includes a cutting unit (26), which includes a connecting rod (261) slidably connected to the side of the second perforated plate (24) near the first perforated plate (23). A blade (263) is fixedly connected to the top of the connecting rod (261). The inner walls of the bottom frame (21) are provided with staggered sawtooth grooves (262), and the two ends of the connecting rod (261) are respectively embedded in the two sawtooth grooves (262).

3. The dredging component for water conservancy projects according to claim 1, characterized in that, The lifting unit (25) includes a second motor (251) fixedly installed on the top of the bottom frame (21). A turntable (252) is fixed to the end of the drive shaft of the second motor (251). A connecting frame (253) is fixed to the top of the second perforated plate (24). A slide rod (254) embedded in the connecting frame (253) is fixed to one side of the turntable (252).

4. A dredging component for water conservancy projects according to claim 1, characterized in that, One side of the bottom frame (21) is fixed with a second guide pipe (28) that communicates with the outlet of the mud pump (22), and the other side of the bottom frame (21) is fixed with a first guide pipe (27) for discharging gravel.

5. A dredging device for water conservancy projects, characterized in that, Includes the dredging components for water conservancy projects as described in any one of claims 1-4; And a base (10), the top of which is fixed with a housing (11), the bottom frame (21) is height-adjustably fixed inside the housing (11), and a drive assembly (12) is provided inside the housing (11).

6. The dredging equipment for water conservancy projects according to claim 5, characterized in that, The drive assembly (12) includes a motor (121) fixedly mounted on a base (10). Two sleeves (122) are rotatably connected to the base (10). One of the sleeves (122) is connected to the drive shaft of the motor (121) via a belt. Two shafts (123) are slidably connected inside the sleeve (122). A roller (124) is fixed to the outer end of the shaft (123). A baffle (125) is fixed to one side of the roller (124).

7. A dredging device for water conservancy projects according to claim 6, characterized in that, It also includes a positioning mechanism, which includes two bidirectional lead screws (31) rotatably connected to both sides of the housing (11). The external threads of the bidirectional lead screws (31) are connected to two symmetrically arranged sliders (32) that are slidably connected to the housing (11). A connecting frame (34) is rotatably connected between two rollers (124) located on the same side of the housing (11). A push plate (33) is hinged between the sliders (32) and the connecting frame (34).

8. A dredging device for water conservancy projects according to claim 5, characterized in that, One end of the bottom frame (21) is rotatably connected to a guide plate (36), and a buckle (37) for fixing the guide plate (36) to the bottom frame (21) is installed on the rotating shaft of the guide plate (36).

9. A dredging device for water conservancy projects according to claim 6, characterized in that, It also includes a cutting assembly (35), which includes a blade (351) fixed to one side of the baffle (125), and a mating block (352) fixed to the outside of the connecting frame (34). When the blade (351) and the mating block (352) intersect, the gathered rhizomes are cut off.

10. A method for dredging silt in water conservancy projects, characterized in that, Includes the following steps: S1. Adjust the height of the bottom frame (21) according to the width and depth of the ditch, and adjust the distance between the two sets of rollers (124) and the outer shell (11) through the positioning mechanism; S2. After placing the dredging device on the ditch, the two sets of rollers (124) are respectively set on the two sides of the ditch, the baffle (125) is positioned against the inner wall of the two sides of the ditch, and the bottom surface of the bottom frame (21) is in contact with the bottom surface of the ditch. S3. The dredging device moves over the ditch, shoveling the silt into the bottom frame (21), and starts the mud pump (22) to extract the silt filtered by the perforated plate one (23) and the perforated plate two (24) from the ditch. S4. The lifting unit (25) drives the perforated plate (24) to rise and fall, so that the gravel filtered out of the silt is conveyed upward and discharged. At the same time, the cutting unit (26) crushes the plant roots in the silt. S5. Adjust the distance between the roller (124) and the outer shell (11) again, adjust the position of the bottom frame (21) in the ditch, and repeat the above operation until the silt in the ditch is cleared.

Images