Integrated river channel desilting and ecological restoration equipment

Abstract

The invention relates to the technical field of dredging equipment, in particular to integrated river channel dredging and ecological restoration equipment. Comprising a collecting module, the collecting module is provided with a collecting bin capable of collecting sludge, and a first opening and a second opening which are formed in the bottom and the side wall of the collecting bin respectively and used for guiding in the sludge; the desilting module is horizontally arranged in the collecting bin and close to the bottom of the collecting bin, and the desilting module is provided with a rotary tillage unit capable of conducting rotary digging on sludge of different depths; the blocking module is arranged in the collecting bin in an inclined state, and the blocking module is provided with a blocking plate capable of dynamically closing the first opening; the silt suction module is vertically and fixedly arranged at the top of the collecting bin and communicates with the interior of the collecting bin; the dredging state can be automatically adjusted according to the sludge depth, and the to-be-dredged area can be comprehensively covered and continuously dredged.

Description

Technical Field

[0001] This invention relates to the field of dredging equipment technology, specifically to an integrated river dredging and ecological restoration equipment. Background Technology

[0002] Over long periods of operation, rivers, lakes, and urban waterways are prone to siltation at their bottoms due to sediment deposition from upstream water, shoreline erosion, and human activities. This silt typically has high water content, fine particles, and is easily suspended and dispersed. It not only significantly reduces the river's cross-sectional area and flood control capacity but also readily diffuses into upper water layers under disturbed conditions, causing increased turbidity, decreased dissolved oxygen, and secondary release of pollutants, thus adversely affecting the aquatic ecosystem. Therefore, efficient and controlled dredging of river silt has become a crucial aspect of river management and ecological restoration.

[0003] Existing river dredging methods mainly include grab bucket dredging, cutter suction dredging, and manual dredging combined with mechanical dredging. Among them, grab bucket dredging has the problems of strong intermittency and poor continuity during operation, and the grabbing, lifting and unloading process can easily cause significant disturbance to the water body, causing the bottom sediment to be repeatedly turned upside down and spread to different water layers. Although cutter suction dredging can achieve relatively continuous sludge suction, the bottom sediment is easily agitated into a high concentration of suspension during the rotation of the cutter and negative pressure suction. If there is a lack of effective sealing and diversion measures, the sludge particles will spread around the dredging area with the water flow, polluting the middle and upper water layers, and even affecting the water quality of downstream waters.

[0004] In addition, existing dredging equipment mainly focuses on "removal" and lacks effective means to control the environmental impact of the dredging process itself. Especially under continuous dredging conditions, it is often difficult to simultaneously constrain the range of silt disturbance, collect suspended particles in a targeted manner, and effectively isolate different water layers. This leads to a significant contradiction between dredging operations and water protection, making it difficult to meet the actual needs of the current coordinated implementation of in-situ river management, low-disturbance dredging, and ecological restoration. Summary of the Invention

[0005] To address the aforementioned issues, an integrated river dredging and ecological restoration device is proposed. This device enables continuous dredging operations within the river channel while effectively sealing and guiding the dredging area, inhibiting the diffusion of silt to other water layers during the dredging process, and reducing the risk of secondary pollution. This solves the technical problems of existing dredging equipment being unable to efficiently seal and dredge silt and unable to dynamically dredge based on silt depth.

[0006] To address the problems of existing technologies, this invention provides an integrated river dredging and ecological restoration device, comprising: a collection module, which has a collection chamber for collecting silt and a first opening and a second opening respectively located at the bottom and side wall of the collection chamber for silt introduction; a dredging module, horizontally disposed within the collection chamber and near the bottom of the collection chamber, which has a rotary tillage unit capable of rotary excavating silt at different depths; a barrier module, inclinedly disposed within the collection chamber and near the second opening of the collection chamber, which has a barrier plate capable of dynamically closing the first opening, and the internal cavity of the collection chamber is divided into a first chamber and a second chamber by the barrier plate; and a suction module, vertically fixedly disposed at the top of the collection chamber and communicating with the interior of the collection chamber.

[0007] Preferably, the barrier module further includes a guide frame capable of tilting and guiding the barrier plate, a counterweight chamber capable of counterweighting the barrier plate according to different water depths, and a counterweight block detachably disposed in the counterweight chamber; two guide frames are provided, and the two guide frames are fixedly disposed in the collection chamber in an inclined state; the barrier plate is slidably disposed between the two guide frames in an inclined state; the counterweight chamber is fixedly disposed on the rear side of the barrier plate.

[0008] Preferably, the barrier plate consists of a first guide plate and a second guide plate arranged in a V-shape, and a limiting plate fixedly disposed at the end of the second guide plate; the first guide plate is slidably disposed between the two guide frames; the second guide plate is inclined toward the front end of the collection chamber.

[0009] Preferably, the dredging module further includes a linear drive unit capable of adjusting the longitudinal tillage depth of the rotary tillage unit; the linear drive unit is fixedly installed vertically inside the collection chamber; the rotary tillage unit is fixedly installed parallel to the drive end of the linear drive unit along the short side of the collection chamber.

[0010] Preferably, the rotary tillage unit is equipped with a rotation limit frame, a rotary tillage paddle capable of rotary tilling the silt, and a servo motor capable of rotating and driving the rotary tillage paddle; the rotary tillage paddle is set in the collection chamber through the rotation limit frame.

[0011] Preferably, the collection module further includes a sealing plate capable of sealing the collection chamber and the sludge, and a float-limiting component capable of dynamically limiting the sludge removal height of the collection chamber; two sealing plates are provided, and the two sealing plates are arranged parallel to each other on both sides of the inner wall of the collection chamber along the long side direction; two float-limiting components are provided, and the two float-limiting components are arranged parallel to each other on both sides of the outer wall of the collection chamber along the long side direction.

[0012] Preferably, the buoyancy limiting component consists of a connector and a V-shaped plate fixedly disposed on one side of the connector.

[0013] Preferably, the sludge suction module is provided with a sludge suction baffle that can increase the sludge suction pressure, a sludge suction chamber that can collect sludge, and a sludge suction connector that can be fixedly installed on the sludge suction chamber; the sludge suction baffle is horizontally fixedly installed inside the collection chamber; the sludge suction chamber is fixedly installed on the top of the collection chamber and communicates with the collection chamber.

[0014] The advantages of this invention compared to the prior art are: 1. This invention constructs a relatively independent, fully enclosed dredging operation space at the bottom of the river channel through the combination of a collection chamber, a barrier plate, and a sealing insert plate. The entire dredging process is completed within the closed cavity. The mud-water mixture generated during rotary tillage is effectively confined inside the collection chamber and then directionally extracted by the suction module, preventing the silt from being suspended and diffused into the upper water layer. Compared with traditional open excavation or suction dredging methods, this invention significantly reduces the disturbance to water transparency, water quality, and the ecosystem during the dredging process, and is especially suitable for ecologically sensitive water areas.

[0015] 2. This invention, through the cooperation of the rotary tillage unit and the sludge suction module, enables the sludge suction action to run in the second chamber, so that the sludge enters the sludge suction process immediately after being dispersed by rotary tillage, avoiding repeated sedimentation and secondary hardening; effectively reducing the efficiency loss caused by the traditional "stirring first, then waiting for settling, then suctioning" process, and achieving high-efficiency and continuous sludge removal operation.

[0016] 3. This invention achieves a dynamic adjustment mechanism through the use of a baffle plate to enable the second chamber to partially open, automatically reseal, and continuously seal during movement at the bottom of the river. While ensuring the sealing of the dredging chamber, the baffle plate can smoothly overcome local obstacles or uneven riverbeds, improving overall mobility and overcoming the problem of difficult movement of traditional fixed or rigid sealing dredging equipment. Attached Figure Description

[0017] Figure 1 A three-dimensional integrated river dredging and ecological restoration equipment Figure 1 .

[0018] Figure 2 This is a front view of an integrated river dredging and ecological restoration equipment.

[0019] Figure 3 yes Figure 2 Sectional view at point AA.

[0020] Figure 4 yes Figure 3 A magnified view of section B.

[0021] Figure 5yes Figure 4 A magnified view of a portion of point C.

[0022] Figure 6 A three-dimensional integrated river dredging and ecological restoration equipment Figure 2 .

[0023] Figure 7 This is an exploded 3D diagram of an integrated river dredging and ecological restoration equipment.

[0024] Figure 8 yes Figure 7 A magnified view of a portion of point D.

[0025] The numbers on the map are: 1. Collection module; 11. Collection chamber; 111. First opening; 112. Second opening; 12. Sealing plate; 13. Buoyancy limiting component; 131. Connector; 132. V-shaped plate; 133. Third guide plate; 134. Fourth guide plate; 2. Dredging module; 21. Rotary tillage unit; 211. Rotation limit frame; 212. Rotary tillage paddle; 213. Servo motor; 22. Linear drive unit; 3. Barrier module; 31. Barrier plate; 311. First guide plate; 312. Second guide plate; 313. Limiting plate; 32. Guide frame; 33. Counterweight compartment; 34. Counterweight block; 4. Sludge suction module; 41. Sludge suction baffle; 42. Sludge suction chamber; 43. Sludge suction connector; 44. Conical booster head. Detailed Implementation

[0026] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0027] See Figures 1 to 8 The image shows an integrated river dredging and ecological restoration device, comprising: a collection module 1, which has a collection chamber 11 for collecting silt and a first opening 111 and a second opening 112 respectively opened at the bottom and side wall of the collection chamber 11 for silt to be introduced; a dredging module 2, which is horizontally arranged inside the collection chamber 11 and close to the bottom of the collection chamber 11, and has a rotary tillage unit 21 for rotary digging of silt at different depths; a barrier module 3, which is inclinedly arranged inside the collection chamber 11 and close to the second opening 112 of the collection chamber 11, and has a barrier plate 31 that can dynamically close the first opening 111, and the internal cavity of the collection chamber 11 is divided into a first chamber and a second chamber by the barrier plate 31; and a silt suction module 4, which is vertically fixed at the top of the collection chamber 11 and communicates with the interior of the collection chamber 11.

[0028] When dredging is required at the bottom of the river, the workers simply need to slowly lower the collection chamber 11 vertically into the target river channel. Under its own weight and the damping effect of the water, the collection chamber 11 gradually sinks and eventually settles stably at the bottom of the river. At this point, the first opening 111 at the bottom of the collection chamber 11 directly covers the area of ​​silt to be dredged, forming a relatively enclosed dredging space together with the side wall of the collection chamber 11. Simultaneously, the baffle plate 31 inside the collection chamber 11 dynamically closes the second opening 112 with structural cooperation, so that the collection chamber 11 forms an independent dredging cavity at the bottom of the river, closed on all sides and fitted at the bottom.

[0029] During the dredging operation, the dredging module 2 is activated by connecting an external power source. The rotary tillage unit 21 rotates and tills the silt within the coverage area of ​​the collection chamber 11, fully breaking up and loosening the compacted or deposited silt, allowing it to mix thoroughly with the existing river water in the collection chamber 11, forming a free-flowing, non-solidified mud-water mixture. Subsequently, the suction module 4 is activated to directionally suck up the mud-water mixture in the collection chamber 11 and transport it to the downstream treatment system, thus completing the dredging operation. Since the entire dredging process is completed within the enclosed space formed by the collection chamber 11 and the barrier module 3, the sludge that is swirled and dispersed is always confined inside the collection chamber 11 and will not spread to the surrounding water bodies, fundamentally avoiding secondary pollution of the river water during the dredging process.

[0030] See Figure 4 As shown: The barrier module 3 further includes a guide frame 32 capable of tilting and guiding the barrier plate 31, a counterweight chamber 33 capable of counterweighting the barrier plate 31 according to different water depths, and a counterweight block 34 detachably disposed in the counterweight chamber 33; two guide frames 32 are provided, and the two guide frames 32 are fixedly disposed in the collection chamber 11 in an inclined state; the barrier plate 31 is slidably disposed between the two guide frames 32 in an inclined state; the counterweight chamber 33 is fixedly disposed on the rear side of the barrier plate 31.

[0031] After the collection chamber 11 is deployed and sinks to the bottom of the river, the first opening 111 covers the surface of the silt, and the bottom of the baffle plate 31 adheres to the surface of the silt under the action of gravity, thereby effectively dividing the internal cavity of the collection chamber 11 into a first chamber and a second chamber that are isolated from each other. The second chamber serves as the main working chamber for silt extraction, used to contain the mud and water that has been rotary tilled and mixed, and is connected to the silt suction module 4, so that the suction process is always carried out in a relatively closed space, preventing the mud and water from overflowing.

[0032] Considering the impact of varying river depths, flow conditions, and silt density on buoyancy distribution, an adjustable counterweight 34 is installed on the collection chamber 11. This allows for dynamic balancing of the overall stress state of the collection chamber 11 according to actual working conditions. This structure not only ensures that the baffle plate 31 reliably adheres to the silt surface, achieving effective compartmentation and sealing, but also prevents the baffle plate 31 from sinking excessively into the silt due to insufficient buoyancy, thus avoiding impact on subsequent rotary tillage and silt removal efficiency.

[0033] See Figure 3 and Figure 7 As shown: The barrier plate 31 is composed of a first guide plate 311 and a second guide plate 312 arranged in a V-shape, and a limiting plate 313 fixedly arranged at the end of the second guide plate 312; the first guide plate 311 is slidably arranged between the two guide frames 32; the second guide plate 312 is inclined towards the front end of the collection chamber 11.

[0034] The first guide plate 311 and the second guide plate 312 are configured with an acute angle, and the transition between them is rounded to reduce movement resistance and prevent sludge accumulation. The upper end of the first guide plate 311 passes through the collection chamber 11 and slides into it. The limiting plate 313 restricts the maximum tilt stroke of the first guide plate 311 to prevent it from detaching from the guide frame 32 during movement.

[0035] The second guide plate 312 is shorter than the first guide plate 311. When the collection chamber 11 is moved along the bottom of the river by the external traction equipment, it is lifted in a controlled manner under the constraint of the guide frame 32 by the squeezing action of the silt in front. When the second guide plate 312 moves with the collection chamber 11 and reaches the preset position, it stops lifting. The barrier plate 31 sinks again under its own weight and inserts into the silt, thereby re-sealing the second chamber and maintaining the sealing integrity of the dredging chamber during the movement of the collection chamber 11.

[0036] The passive lifting and self-repositioning structure of the guide plate enables dynamic opening and automatic resealing of the collection chamber 11 during its movement, balancing operational flexibility and sealing reliability.

[0037] See Figure 5 As shown: The dredging module 2 also includes a linear drive unit 22 that can adjust the longitudinal rotary tillage depth of the rotary tillage unit 21; the linear drive unit 22 is fixedly installed in the collection chamber 11 in a vertical state; the rotary tillage unit 21 is fixedly installed parallel to the drive end of the linear drive unit 22 along the short side of the collection chamber 11.

[0038] When adjustments to the rotary tillage operation are required based on varying river silt thickness and dredging depth, an external power source is simply connected to drive the linear drive unit 22. The linear drive unit 22 then moves the rotary tillage unit 21 vertically, adjusting its position and thus achieving precise control over the tillage depth. The linear drive unit 22 is preferably an electric actuator, which offers fast response and high control precision. However, it is not limited to electric actuators and can also employ other linear drive methods such as hydraulic cylinders or lead screw motors.

[0039] With its adjustable rotary tillage depth structure, the equipment can adapt to different silt thicknesses and operational needs, thereby improving overall dredging efficiency and operational accuracy.

[0040] See Figure 5 and Figure 8 As shown: The rotary tillage unit 21 is equipped with a rotation limit frame 211, a rotary tillage paddle 212 capable of rotary tilling the silt, and a servo motor 213 capable of rotating and driving the rotary tillage paddle 212; the rotary tillage paddle 212 is set in the collection chamber 11 through the rotation limit frame 211.

[0041] Two sets of rotary tillage units 21 are provided. One set of rotary tillage units 21 is fixedly arranged horizontally in the collection bin 11 and close to the rear side of the collection bin 11, with the bottom of the rotary tillage unit 21 flush with the bottom of the collection bin 11. The other set of rotary tillage units 21 is fixedly arranged horizontally at the drive end of the linear drive unit 22 along the short side of the collection bin 11.

[0042] During rotary tillage, the rotary tillage unit 21 is lowered and completely placed inside the second chamber. An external power source drives the servo motor 213, which in turn rotates the rotary tillage paddle 212 at high speed, thoroughly mixing and loosening the silt to form a uniform mud-water mixture with the river water inside the second chamber. Subsequently, the suction module 4 performs directional suction, achieving coordinated rotary tillage and suction operations.

[0043] See Figure 6 and Figure 7 As shown: The collection module 1 further includes a sealing plate 12 capable of sealing the collection chamber 11 and the sludge, and a float-limiting component 13 capable of dynamically limiting the sludge removal height of the collection chamber 11; two sealing plates 12 are provided, and the two sealing plates 12 are arranged parallel to the long side of the collection chamber 11 on both sides of the inner wall of the collection chamber 11; two float-limiting components 13 are provided, and the two float-limiting components 13 are arranged parallel to the long side of the collection chamber 11 on both sides of the outer wall of the collection chamber 11.

[0044] After the collection chamber 11 sinks to the bottom of the river, the sealing plates 12 on both sides of the inner wall of the collection chamber 11 are pressed into the silt under the weight of the collection chamber 11, further sealing the area where the lower surface of the collection chamber 11 contacts the silt. At the same time, the buoyancy limiting member 13 provides upward support to the collection chamber 11 after contacting the silt surface, so that the collection chamber 11 remains stably at the predetermined depth, preventing it from continuing to sink due to its own weight or the negative pressure of silt suction.

[0045] By cooperating with the sealing insert 12 and the buoyancy limiting component 13, the sealing of the dredging chamber is ensured while effectively preventing the equipment from sinking excessively, thus improving operational stability.

[0046] See Figure 1 As shown: The buoyancy limiting member 13 consists of a connector 131 and a V-shaped plate 132 fixedly disposed on one side of the connector 131.

[0047] The V-shaped plate 132 is formed by splicing a third guide plate 133 and a fourth guide plate 134, with an obtuse angle between them. The third guide plate 133 is flush with the bottom of the collection chamber 11, while the fourth guide plate 134 is inclined towards the front end of the collection chamber 11. When the collection module 1 moves along the riverbed under the traction of external equipment, the third guide plate 133 remains in continuous contact with the silt, providing horizontal restraint and support, while the fourth guide plate 134 guides the equipment over local obstacles, ensuring that the collection chamber 11 remains relatively horizontal.

[0048] The V-shaped guide structure improves the equipment's passability and attitude stability under complex riverbed conditions.

[0049] See Figure 3 As shown: The sludge suction module 4 is provided with a sludge suction baffle 41 that can increase the sludge suction pressure, a sludge suction chamber 42 that can collect sludge, and a sludge suction connector 43 that can be fixedly installed on the sludge suction chamber 42; the sludge suction baffle 41 is horizontally fixedly installed in the collection chamber 11; the sludge suction chamber 42 is fixedly installed on the top of the collection chamber 11 and communicates with the collection chamber 11.

[0050] The lower surface of the suction baffle 41 is densely and fixedly equipped with multiple conical pressure boosting heads 44, and the interior of each conical pressure boosting head 44 is connected to the suction chamber 42. When the suction connector 43 is connected to an external suction device and generates negative pressure, a stable suction airflow is formed within the suction chamber 42. As the inlet area of ​​the conical pressure boosting head 44 gradually shrinks, the sludge is forced to enter the suction channel only from the tip of the cone, thereby creating a higher flow velocity and pressure difference locally, significantly enhancing the suction capacity of the sludge.

[0051] The conical booster head 44 structure significantly improves the utilization rate of negative pressure during sludge suction, increases sludge suction efficiency, and reduces the risk of blockage.

[0052] This invention can not only automatically adjust the dredging state according to the silt depth, but also perform comprehensive and continuous dredging of the area to be dredged.

[0053] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. An integrated river dredging and ecological restoration device, characterized in that, include: The collection module is provided with a collection chamber for collecting sludge and a first opening and a second opening respectively opened at the bottom and side wall of the collection chamber for sludge to be introduced. The dredging module is horizontally installed inside the collection chamber and near the bottom of the collection chamber. The dredging module is equipped with a rotary tillage unit that can rotary excavate silt at different depths. The barrier module is installed at an angle inside the collection chamber and close to the second opening of the collection chamber. The barrier module is equipped with a barrier plate that can dynamically close the first opening. The internal cavity of the collection chamber is divided into a first chamber and a second chamber by the barrier plate. The sludge suction module is vertically fixed at the top of the collection chamber and communicates with the interior of the collection chamber.

2. The integrated river dredging and ecological restoration equipment according to claim 1, characterized in that, The barrier module also includes a guide frame capable of tilting and guiding the barrier plate, a counterweight chamber capable of counterweighting the barrier plate according to different water depths, and a counterweight block detachably disposed in the counterweight chamber. Two guide frames are provided, and the two guide frames are fixedly installed in the collection chamber at an inclined state; the baffle plate is slidably installed between the two guide frames at an inclined state. The counterweight compartment is fixedly installed on the rear side of the barrier plate.

3. The integrated river dredging and ecological restoration equipment according to claim 2, characterized in that, The barrier plate consists of a first guide plate and a second guide plate arranged in a V-shape, and a limiting plate fixedly disposed at the end of the second guide plate; The first guide plate is slidably disposed between the two guide frames; The second guide plate is tilted toward the front end of the collection chamber.

4. The integrated river dredging and ecological restoration equipment according to claim 1, characterized in that, The dredging module also includes a linear drive unit capable of adjusting the longitudinal tillage depth of the rotary tillage unit; The linear drive unit is fixedly installed vertically inside the collection chamber; The rotary tillage unit is fixedly mounted parallel to the short side of the collection bin at the drive end of the linear drive unit.

5. The integrated river dredging and ecological restoration equipment according to claim 4, characterized in that, The rotary tillage unit is equipped with a rotation limit frame, a rotary tillage paddle capable of rotary tilling the silt, and a servo motor capable of rotating and driving the rotary tillage paddle. The rotary tiller is positioned within the collection chamber via the rotation limiting frame.

6. The integrated river dredging and ecological restoration equipment according to claim 1, characterized in that, The collection module also includes a sealing plate that can seal the collection chamber and the sludge, and a buoyancy limiter that can dynamically limit the sludge removal height of the collection chamber. Two sealing plates are provided, and the two sealing plates are arranged parallel to each other on both sides of the inner wall of the collection chamber along the long side of the collection chamber; Two buoyancy limiting components are provided, and the two buoyancy limiting components are arranged parallel to each other on both sides of the outer wall of the collection chamber along the long side of the collection chamber.

7. The integrated river dredging and ecological restoration equipment according to claim 6, characterized in that, The buoyancy limiting component consists of a connector and a V-shaped plate fixedly disposed on one side of the connector.

8. The integrated river dredging and ecological restoration equipment according to claim 1, characterized in that, The sludge suction module is equipped with a sludge suction baffle that can increase the sludge suction pressure, a sludge suction chamber that can collect sludge, and a sludge suction connector that can be fixedly installed on the sludge suction chamber. The suction baffle is horizontally fixed inside the collection chamber; The suction chamber is fixedly installed on top of the collection chamber and is connected to the collection chamber.

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