Intelligent efficient environment-friendly dredging and in-situ repairing device for black and odorous river sediment

By designing an intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous river bottom sediment, and utilizing the synergistic effect of the aerated bucket and remediation components, the problem of separate dredging and remediation is solved, achieving efficient integrated dredging and remediation, and improving operational efficiency and remediation effect.

CN121024145AActive Publication Date: 2025-11-28POWERCHINA WATER ENVIRONMENT GOVERANCE
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Patent Information

Application Number
CN202511405694.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2025-11-28
Estimated Expiration
2045-09-29

AI Technical Summary

Technical Problem

In existing technologies, the dredging and restoration of polluted rivers are carried out in steps, resulting in long operation cycles, inability to coordinate dredging and restoration, low efficiency, and easy redeposition of pollutants at the bottom of the river, which affects the restoration effect.

Method used

Design a smart, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous river bottom sediment, including a connecting arm, an aeration bucket, a suction structure, and remediation components. The aeration bucket tumbles and impacts the silt and then suctions it, followed by the introduction of remediation materials. Combined with a leveling component, the device improves dredging efficiency and remediation effect.

Benefits of technology

This approach enables efficient and coordinated dredging and restoration, shortens the operation cycle, reduces manpower and material resources, avoids changes in the bottom structure of the river and the deposition of pollutants, and improves dredging efficiency and restoration effectiveness.

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Abstract

The invention provides an intelligent efficient environment-friendly dredging and in-situ repairing device for black and odorous river branch bottom mud. The intelligent efficient environment-friendly dredging and in-situ repairing device comprises a connecting arm, an aeration bucket, a suction structure and a repairing assembly. The connecting arm is provided with an overturning adjusting end. And the aeration bucket is connected with the turnover adjusting end. The aeration bucket is provided with a through cavity. An aeration part is arranged at the bottom of the through cavity. The aeration bucket can enable sludge at the bottom of the river to enter the through cavity, and the sludge is impacted through the aeration part. The suction structure is provided with a suction end which is positioned at the top of the aeration bucket and is communicated with the through cavity, and the suction structure can be used for extracting and removing the sludge in a rolling state in the through cavity. The repairing assembly is provided with a discharging end located at the tail of the aeration bucket, and after the aeration bucket passes through the repairing assembly, repairing materials can be guided into the cleaned area. According to the intelligent efficient environment-friendly desilting and in-situ repairing device for the black and odorous river bottom mud, the time interval between desilting and repairing can be effectively shortened, efficient cooperation of desilting and repairing is guaranteed, and the working efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of river sludge treatment, and particularly relates to an intelligent and efficient environment-friendly dredging and in-situ remediation device for black and odorous river and creek sludge. BACKGROUND

[0002] Black and odorous rivers and creeks refer to rivers or ditches that are black and emit odors due to the excessive decomposition of organic pollutants, nitrogen and phosphorus nutrients, and other nutrients in the water body under anaerobic conditions, resulting in the generation of hydrogen sulfide, ammonia and other foul-smelling substances, which not only seriously affect the surrounding ecological environment, but also endanger the health of residents.

[0003] In the prior art, in the field of black and odorous river and creek sludge treatment, the current dredging and remediation work generally adopts a staged operation mode. First, a special dredging device (dredging ship) needs to be dispatched into the river and creek. Such a device usually only has a single dredging function. Through mechanical excavation or suction (a mechanical arm is provided on the ship body, which can lower a bucket or suction head to the bottom of the river and creek), the sludge is cleaned on shore or transported to a designated location. After the dredging operation is completed, the dredging device needs to be moved away from the river and creek, and then a remediation device needs to be dispatched. The remediation device needs to first level the river bottom after dredging, and then lay remediation materials. As can be seen, the multiple entries and exits of the device not only require a large amount of transportation and dispatching time, but also take a long time for dredging, increase labor costs, and the interval between dredging and remediation is several days to several weeks. During this period, the river and creek bottom is easy to be eroded by water flow, resulting in changes in the riverbed structure, and the pollutants in the water body may again be deposited, so that the remediation environment is different from the initial state after dredging, thereby affecting the effect of the remediation materials, and it is difficult to achieve efficient and coordinated dredging and remediation. SUMMARY

[0004] The present application provides a black and odorous river and creek sludge intelligent and efficient environment-friendly dredging and in-situ remediation device, which aims to solve the problem of low efficiency and uncoordinated dredging and remediation due to the long operation cycle of the two processes.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is to provide a black and odorous river and creek sludge intelligent and efficient environment-friendly dredging and in-situ remediation device, comprising: a connecting arm connected to a mechanical arm on the dredging ship; the connecting arm has a turnover adjusting end; an aeration bucket connected to the turnover adjusting end; the aeration bucket has a through cavity, and the aeration bucket can be driven by the turnover adjusting end to arrange the through cavity along the direction of travel of the dredging ship; the bottom of the through cavity has an aeration part; the aeration bucket is used to move with the dredging ship, so that the sludge at the bottom of the river and creek enters the through cavity, and the sludge is impacted by the aeration part; a suction structure having a suction end at the top of the aerated bucket and communicating with the through cavity, the suction structure being used to suck and remove the sludge in the through cavity in a rolling state; a repair assembly having a discharge end at the tail of the aerated bucket, used to introduce repair material to the cleaned area after the aerated bucket passes.

[0006] In a possible implementation, the aerated bucket comprises: a top plate connected to the overturning adjusting end and fixedly installed with the suction end; a bottom plate arranged in parallel with the top plate; an aeration structure arranged on the bottom plate close to the plate surface of the top plate; the aeration structure provides the aeration part; two side plates, both of which are arranged between the top plate and the bottom plate and in parallel with the width direction of the dredging ship; the two side plates, the top plate, the bottom plate and the aeration structure form the through cavity.

[0007] In a possible implementation, the aeration structure comprises: a cover plate fixedly arranged on the bottom plate, the cover plate being provided with an inner cavity close to the plate surface of the bottom plate; the cover plate is provided with an inclined surface close to the plate surface of the top plate, the inclined surface gradually rises from the vector direction of the inlet of the through cavity to the outlet of the through cavity; the inclined surface is uniformly provided with a plurality of air holes, each of which forms an aeration part; a coil pipe arranged in a serpentine shape in the inner cavity, the coil pipe being uniformly provided with a plurality of nozzles; one end of the coil pipe penetrates through the corresponding side wall and is connected to a gas compressor arranged on the dredging ship through a flow pipeline.

[0008] In a possible implementation, the connecting arm comprises: a main arm, one end of which is connected to a mechanical arm on the dredging ship and the other end of which is rotatably connected to an auxiliary rod arranged on the top plate; an overturning frame, one end of which is rotatably connected to the main arm and the other end of which is rotatably connected to the auxiliary rod; the overturning frame is the overturning adjusting end; a telescopic structure, a fixed end of which is rotatably connected to the main arm and a telescopic end of which is rotatably connected to the overturning frame, used to drive the top plate to pitch by the overturning frame.

[0009] In a possible implementation, the suction structure comprises: a suction bucket arranged on the top plate and having a suction inlet communicating with the through cavity; the suction bucket is the suction end; a suction pipe, one end of which is connected to the suction bucket and the other end of which is connected to a suction device arranged on the dredging ship.

[0010] In a possible implementation, the suction inlet is provided with a filter plate for filtering the gravel.

[0011] In a possible implementation, the repairing assembly comprises: The discharge hopper is fixed on the aeration bucket, and has a discharge opening covering the through cavity along the width direction of the through cavity; and the discharge end is the discharge hopper. The discharge pipeline is connected at one end to the discharge hopper and at the other end to a conveying device provided on the dredging ship.

[0012] In a possible implementation, the black and odorous river and creek bottom mud intelligent efficient environmental dredging and in-situ repairing device further comprises: The leveling assembly is located behind the repairing assembly and is rotationally connected to the aeration bucket; the leveling assembly has a plurality of ditching members arranged at intervals along the width direction of the through cavity and has a leveling squirrel cage; and the leveling squirrel cage is located behind each of the ditching members along the advancing direction of the dredging ship.

[0013] In the present implementation, the aeration bucket is connected to the mechanical arm of the dredging ship through the connecting arm and can be lowered to the bottom of the river by the dredging ship to ensure the dredging work. The aeration bucket is provided with the through cavity, and the aeration part is arranged at the bottom of the through cavity. The aeration part can impact the silt entering the through cavity to make the silt form a rolling state, thereby facilitating the suction structure to suck and discharge the silt to the outside, improving the dredging effect and efficiency, and shortening the operation cycle. The repairing assembly arranged at the tail end of the aeration bucket can timely introduce the repairing material to the bottom of the river and creek after dredging to cover the river and creek bottom with the repairing material and the remaining gravel, which can effectively shorten the time interval between dredging and repairing, avoid the river and creek bottom being scoured by the water flow to change the riverbed structure, and also avoid the deposition of pollutants on the river and creek bottom due to long interval time, ensuring the efficient cooperation of dredging and repairing, reducing manpower and resources, and improving work efficiency. In addition, the leveling assembly arranged behind the repairing assembly can form a plurality of uniform grooves on the mixed layer of gravel and repairing material through the ditching members, increase the contact area of the repairing material and river water, and compact the mixed layer through the leveling squirrel cage to ensure the compactness of the mixed layer and the repairing effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Structure diagram of the black and odorous river and creek bottom mud intelligent efficient environmental dredging and in-situ repairing device provided by the embodiment of the present application Figure 1 ; Figure 2The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application Figure 2 ; Figure 3 The rear view structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application Figure 4 The suction structure and connecting arm relationship structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application Figure 5 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application after the aeration bucket hidden bottom plate, side plate and cover plate Figure 6 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application Figure 7 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application at the aeration structure Figure 1 ; Figure 8 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application at the aeration structure Figure 2 (hidden coil pipe); Figure 9 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application of the leveling assembly Figure 1 ; Figure 10 The structural diagram of the black and odorous river and creek bottom mud intelligent efficient environmental protection dredging and in-situ repairing device provided by the embodiment of the present application of the leveling assembly Figure 2 .

[0015] Explanation of reference signs: 10, connecting arm; 11, main arm; 12, turnover frame; 13, telescopic structure; 20, aeration bucket; 21, top plate; 211, auxiliary rod; 22, bottom plate; 23, aeration structure; 231, cover plate; 232, coil pipe; 233, flow pipeline; 234, inclined surface; 235, air hole; 236, spray head; 24, side plate; 25, through cavity; 30, suction structure; 31, suction bucket; 32, suction mud pipeline; 33, filter plate; 40, repairing assembly; 41, discharge hopper; 42, discharging pipeline; 50, leveling assembly; 51, front hinged frame; 52, rear hinged frame; 53, ditching piece; 54, leveling squirrel cage. DETAILED DESCRIPTION

[0016] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application.

[0017] Please refer to Figures 1 to 3 , now the black and odorous river and stream bottom mud intelligent efficient environmental protection dredging and in-situ repair device provided by the present application will be described. The black and odorous river and stream bottom mud intelligent efficient environmental protection dredging and in-situ repair device comprises a connecting arm 10, an aeration bucket 20, a suction structure 30 and a repair assembly 40. The connecting arm 10 is connected with a mechanical arm on a dredging ship. The connecting arm 10 has a turnover adjusting end. The aeration bucket 20 is connected with the turnover adjusting end. The aeration bucket 20 has a through cavity 25, and the aeration bucket 20 can be driven by the turnover adjusting end to be arranged along the advancing direction of the dredging ship. The bottom of the through cavity 25 has an aeration part. The aeration bucket 20 can make the river and stream bottom mud enter the through cavity 25 and impact the mud through the aeration part as the dredging ship moves. The suction structure 30 has a suction end located at the top of the aeration bucket 20 and connected with the through cavity 25, and the suction structure 30 can extract and remove the mud in the through cavity 25 in a tumbling state. The repair assembly 40 has a discharge end located at the tail of the aeration bucket 20, and can introduce repair materials to the cleaned area after the aeration bucket 20 passes.

[0018] Specifically, the working principle is that after the connecting arm 10 is connected with the mechanical arm on the dredging ship, the aeration bucket 20 is lowered to the river and stream bottom through the mechanical arm, and the aeration bucket 20 is adjusted by the turnover adjusting end on the connecting arm 10 to be horizontally arranged, i.e. the through cavity 25 is horizontally arranged. At this time, the through direction of the through cavity 25 is arranged along the advancing direction of the dredging ship. In the process of advancing of the dredging ship, the mud will enter the through cavity 25 through the front end of the through cavity 25, at this time the aeration part will spray high-pressure airflow to impact the mud to form tumbling, and the tumbling mud will be sucked out by the suction structure 30. At the same time, there are stones in the mud, which will be directly discharged at the tail (discharge end) of the through cavity 25. In the process of advancing of the dredging ship, the repair assembly 40 introduces repair materials to the tail of the aeration bucket 20 or the through cavity 25 through the discharge end.

[0019] For the convenience of understanding, the advancing direction of the dredging ship is the length direction of the dredging ship, and is also the through direction of the through cavity 25, and the width direction of the through cavity 25 is the width direction of the dredging ship.

[0020] Compared with the prior art, the aeration bucket 20 is connected with the mechanical arm of the dredging ship through the connecting arm 10, can be lowered to the bottom of the river channel by the dredging ship, and can ensure the dredging work. The aeration bucket 20 is provided with the through cavity 25, and the aeration part is arranged at the bottom of the through cavity 25. The aeration part can impact the sludge entering the through cavity 25, so that the sludge forms a rolling state, and then the suction structure 30 can suck and discharge the sludge to the outside, so that the dredging effect and efficiency are improved, and the working cycle is shortened. The repair assembly 40 arranged at the tail end of the aeration bucket 20 can timely guide the repair material to the bottom of the river channel after dredging, so that the repair material covers the river channel bottom together with the remaining gravel. This kind of mode can effectively shorten the time interval between dredging and repair, avoid the river channel bottom being scoured by the water flow to change the riverbed structure, and also avoid the deposition of pollutants in the river channel bottom due to long interval time, ensure the efficient cooperation of dredging and repair, reduce manpower and material resources, and improve the working efficiency.

[0021] In some embodiments, the aeration bucket 20 described above can adopt the structure as shown in Figure 1 、 Figure 2 、 Figure 7 and Figure 8 . Referring to Figure 1 、 Figure 2 、 Figure 7 and Figure 8 , the aeration bucket 20 includes a top plate 21, a bottom plate 22, an aeration structure 23, and side plates 24. The top plate 21 is connected with the turnover adjusting end, and the suction end is fixedly installed. The bottom plate 22 is arranged in parallel and spaced apart from the top plate 21. The aeration structure 23 is arranged on the plate surface of the bottom plate 22 close to the top plate 21. The aeration structure 23 provides an aeration part. The side plates 24 are provided in two, both of which are located between the top plate 21 and the bottom plate 22, and are arranged in spaced apart along the width direction of the dredging ship. The two side plates 24, the top plate 21, the bottom plate 22, and the aeration structure 23 enclose a through cavity 25.

[0022] The main body of the aeration bucket 20 is composed of the top plate 21, the bottom plate 22, the side plates 24, and the aeration structure 23, which has a simple structure and a large coverage area of the through cavity 25 formed, and can ensure the dredging efficiency.

[0023] After the sludge enters the through cavity 25, it is impacted by the aeration structure 23 and forms a rolling state. At this time, the sludge involved in the agglomeration can be dispersed into small particles by the bubbles formed by the high-speed airflow. The high-speed bubbles shuttle in the gravel, strip the sludge attached to the surface of the gravel, and can ensure that the sludge can be fully extracted, thereby ensuring the dredging effect.

[0024] It needs to be explained that the front end of the aerated bucket 20 is wedge-shaped, that is, the front end of the through cavity 25 is provided with a beveled opening, which can be seen from Figure 1 and Figure 2 .

[0025] In some embodiments, the above-mentioned aeration structure 23 can adopt the structure as shown in Figure 5 , Figure 7 and Figure 8 . Referring to Figure 5 , Figure 7 and Figure 8 , the aeration structure 23 includes a cover plate 231 and a coil pipe 232. The cover plate 231 is fixedly arranged on the bottom plate 22, and the cover plate 231 is provided with an inner cavity on the plate surface close to the bottom plate 22. The cover plate 231 has an inclined surface 234 on the plate surface close to the top plate 21, which gradually rises from the vector direction from the inlet to the outlet of the through cavity 25. The inclined surface 234 is uniformly provided with a plurality of air holes 235, and each air hole 235 forms an aeration part. The coil pipe 232 is arranged in the inner cavity in a serpentine shape, and the coil pipe 232 is uniformly provided with a plurality of spray heads 236. One end of the coil pipe 232 penetrates through the corresponding side wall and is connected to the gas compressor arranged on the dredging ship through a flow pipeline 233.

[0026] The cover plate 231 is fixedly arranged on the bottom plate 22, and the cover plate 231 has an inclined surface 234, which can slow down the speed of the sludge movement, thereby ensuring sufficient contact with the aeration part. At the same time, the inclined surface 234 can also intercept the gravel, ensure the full impact of the aeration part on the gravel, and thereby ensure the dredging effect. Moreover, the gravel has a relatively large weight, which can ensure continuous accumulation on the inclined surface 234, slowly pass through the inclined surface 234 at the tail end of the through cavity 25, and ensure that the gravel falls uniformly on the river bottom, thereby ensuring the subsequent repair effect. The plurality of air holes 235 provided on the inclined surface 234 can ensure the passage of airflow.

[0027] The coil pipe 232 is arranged in a serpentine shape, which can ensure the coverage range of the inner cavity, thereby ensuring the length of the coil pipe 232 in the inner cavity. After the plurality of spray heads 236 spray the airflow, bubbles are formed, and the bubbles will form small bubbles again after passing through each air hole 235. The flow rate of the small bubbles is large, which can further ensure the impact on the sludge and the impact on the gravel, thereby ensuring the dredging effect.

[0028] In this embodiment, the gas compressor can be a screw type gas compressor.

[0029] In some embodiments, the above-mentioned connecting arm 10 can adopt the structure as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 . Referring to Figure 1 , Figure 2 ,Figure 4 and Figure 5 The connecting arm 10 comprises a main arm 11, a turnover frame 12 and a telescopic structure 13. One end of the main arm 11 is connected with the mechanical arm on the dredging ship, and the other end is rotationally connected with an auxiliary rod 211 arranged on the top plate 21. One end of the turnover frame 12 is rotationally connected with the main arm 11, and the other end is rotationally connected with the auxiliary rod 211. The turnover frame 12 is the turnover adjusting end. The fixed end of the telescopic structure 13 is rotationally connected with the main arm 11, and the telescopic end is rotationally connected with the turnover frame 12, so that the top plate 21 can be driven by the turnover frame 12 to perform pitching rotation.

[0030] The connection between the main arm 11 and the mechanical arm can be fixed connection, such as bolted connection. The main arm 11 is rotationally connected with the auxiliary rod 211, and the rotation axis can be arranged along the width direction of the through cavity 25. The rotation axis of the turnover frame 12 and the main arm 11 is also arranged along the width direction of the through cavity 25, and the rotation axis of the turnover frame 12 and the auxiliary rod 211 is also arranged along the width direction of the through cavity 25. The turnover frame 12 can comprise two rotationally connected frame bodies, one of which is rotationally connected with the main arm 11, and the other of which is rotationally connected with the auxiliary rod 211, and the rotation axes of the two frame bodies are also arranged along the width direction of the through cavity 25. The two frame bodies and the main arm 11 and the auxiliary rod 211 form a four-bar linkage structure, and the telescopic end of the telescopic structure 13 can be rotationally connected with the rotation axis on the turnover frame 12. This structure can ensure the adjustment of the turnover angle of the aeration bucket 20 during the telescopic process of the telescopic structure 13, thereby ensuring that the through cavity 25 corresponds to the bottom of the river, ensuring the dredging effect and efficiency.

[0031] In some embodiments, the above-mentioned suction structure 30 can adopt the structure as shown in Figure 2 , Figure 4 and Figure 5 . Referring to Figure 2 , Figure 4 and Figure 5 , the suction structure 30 comprises a suction bucket 31 and a suction pipe 32. The suction bucket 31 is arranged on the top plate 21 and has a suction inlet communicating with the through cavity 25. The suction bucket 31 is the suction end. One end of the suction pipe 32 is connected with the suction bucket 31, and the other end is connected with the suction equipment arranged on the dredging ship.

[0032] The suction bucket 31 is arranged on the top plate 21 and can correspond to the through cavity 25, which can ensure that the sludge inside the through cavity 25 is timely extracted through the suction pipe 32 under the action of the suction equipment, thereby ensuring the suction effect and the dredging efficiency.

[0033] It should be noted that the suction equipment can be a suction pump. When the suction pump is connected with the suction bucket 31 through the suction pipe 32, the suction pipe 32 is a flexible pipe.

[0034] In some embodiments, the suction structure 30 can adopt the structure as shown in Figure 4 Referring to Figure 4 , a filter plate 33 capable of filtering the gravel is arranged in the suction inlet, which can avoid the gravel from being discharged, thereby ensuring that the gravel can be left at the bottom of the river to serve as auxiliary repair materials and realize the recycling of the gravel. Meanwhile, the suction pipeline 32 can be prevented from being blocked.

[0035] In some embodiments, the repair assembly 40 can adopt the structure as shown in Figure 2 , Figure 5 and Figure 6 Referring to Figure 2 , Figure 5 and Figure 6 , the repair assembly 40 comprises a discharge hopper 41 and a discharge pipeline 42. The discharge hopper 41 is fixedly arranged on the aerated bucket 20. The discharge hopper 41 has a discharge opening covering the through cavity 25 along the width direction of the through cavity 25. The discharge hopper 41 is a discharge end. One end of the discharge pipeline 42 is connected with the discharge hopper 41, and the other end is connected with a conveying device arranged on the dredging ship.

[0036] The discharge hopper 41 is arranged at the tail end of the through cavity 25, which can ensure that the repair materials are discharged into the bottom of the river in time after dredging, and the mixed layer formed by the repair materials and the gravel realizes the efficiency of in-situ repair, avoids the scouring of the water flow on the bottom of the river, and also avoids the deposition of pollutants. In addition, the mixed layer has good compactness and can be prevented from being washed away by the water flow. The discharge opening of the discharge hopper 41 covers the entire through cavity 25 along the width direction of the through cavity 25, which can ensure that the repair materials can uniformly correspond to the dredged area, thereby ensuring the repair effect. Meanwhile, the conveying device can ensure that the repair materials are guided into the discharge hopper 41 through the discharge pipeline 42.

[0037] The conveying device can be a conveying pump, or a sealed storage tank provided with a negative pressure pump for conveying by pressure.

[0038] In some embodiments, referring to Figure 1 , Figure 2 , Figure 9 and Figure 10 , the black and odorous river mud intelligent and efficient environmental dredging and in-situ repair device further comprises a leveling assembly 50. The leveling assembly 50 is located behind the repair assembly 40 and is rotationally connected with the aerated bucket 20. The leveling assembly 50 has a plurality of ditching pieces 53 arranged at intervals along the width direction of the through cavity 25, and has a leveling squirrel cage 54. The leveling squirrel cage 54 is located behind each ditching piece 53 along the advancing direction of the dredging ship.

[0039] The flattening assembly 50 arranged behind the repairing assembly 40 can form a plurality of uniform grooves on the mixed layer of the gravel and the repairing material through the ditching members 53, increase the contact area of the repairing material and the river water, and ensure the compactness of the mixed layer through the flattening cage 54 to press the mixed layer after the ditching, thereby ensuring the repairing effect.

[0040] It should be noted that although the cage presses the mixed layer, the formed ditching is not flattened, and the mixed layer after the pressing still has a plurality of parallelly arranged ditchings.

[0041] Specifically, the flattening assembly 50 can include a front hinged frame 51 rotationally connected with the top plate 21 and a rear hinged frame 52 rotationally connected with the front hinged frame 51. Each ditching member 53 is fixedly arranged at the bottom of the front hinged frame 51, and the flattening cage 54 is rotationally arranged on the rear hinged frame 52, which can be seen from Figure 9 and Figure 10 .

[0042] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A smart, efficient, and environmentally friendly device for dredging and in-situ remediation of polluted riverbed sediment, characterized in that: include: A connecting arm is connected to the robotic arm on the dredging vessel; the connecting arm has a tilting adjustment end; An aerated bucket is connected to the tilting adjustment end; the aerated bucket has a through cavity, and the aerated bucket can be driven by the tilting adjustment end to set the through cavity along the direction of travel of the dredging vessel; the bottom of the through cavity has an aeration section; the aerated bucket is used to allow silt from the bottom of the river to enter the through cavity as the dredging vessel moves, and to impact the silt through the aeration section; The suction structure has a suction end located at the top of the aeration bucket and communicating with the through cavity. The suction structure is used to extract and remove the sludge that is in a tumbling state in the through cavity. The repair component has a discharge end located at the tail of the aeration bucket for introducing repair material into the cleaned area after the aeration bucket has passed.

2. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 1, characterized in that, The aeration bucket includes: The top plate is connected to the flip-adjustment end and is used to fix the suction end in place. The base plate is arranged parallel to and spaced apart from the top plate; An aeration structure is disposed on the surface of the bottom plate near the top plate; the aeration structure provides the aeration section; The vessel has two side plates, both of which are located between the top plate and the bottom plate, and are spaced apart along the width of the dredging vessel; the two side plates, the top plate, the bottom plate, and the aeration structure together form the through cavity.

3. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 2, characterized in that, The aeration structure includes: A cover plate is fixedly mounted on the base plate. The cover plate has an inner cavity on its surface near the base plate. The cover plate has an inclined surface on its surface near the top plate. The inclined surface gradually rises in the vector direction from the inlet of the through cavity to the outlet of the through cavity. Multiple air holes are evenly distributed on the inclined surface, and each air hole forms an aeration section. A coil, arranged in a serpentine shape, is installed in the inner cavity, and multiple nozzles are evenly distributed on the coil. One end of the coil passes through the corresponding side wall and is connected to a gas compressor installed on the dredging vessel through a flow pipeline.

4. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 2, characterized in that, The connecting arm includes: The main boom has one end connected to the mechanical arm on the dredging vessel, and the other end rotatably connected to the auxiliary rod set on the top plate; The tilting frame has one end rotatably connected to the main arm and the other end rotatably connected to the auxiliary rod; the tilting frame is the tilting adjustment end. The telescopic structure has a fixed end that is rotatably connected to the main arm and a telescopic end that is rotatably connected to the tilting frame, and is used to drive the top plate to tilt and rotate via the tilting frame.

5. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 2, characterized in that, The suction structure includes: A suction cup, disposed on the top plate, has a suction port communicating with the through cavity; the suction cup is the suction end; The sludge suction pipe is connected at one end to the suction bucket and at the other end to the suction equipment installed on the dredging vessel.

6. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 5, characterized in that, The inlet is equipped with a filter plate for filtering the gravel.

7. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in claim 1, characterized in that, The repair components include: A discharge hopper is fixedly mounted on the aeration shovel; the discharge hopper has a discharge port that covers the through cavity along the width direction of the through cavity; the discharge hopper is the discharge end; The discharge pipeline is connected at one end to the discharge hopper and at the other end to the conveying equipment installed on the dredging vessel.

8. The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous riverbed sediment as described in any one of claims 1-7, characterized in that, The intelligent, efficient, and environmentally friendly dredging and in-situ remediation device for black and odorous river sediment also includes: A leveling component is located behind the repair component and is rotatably connected to the aeration bucket; the leveling component has a plurality of trenching parts spaced apart along the width direction of the through cavity, and has a leveling cage; the leveling cage is located behind each trenching part along the direction of travel of the dredging vessel.

Citation Information

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