Full-process sediment treatment dredging system based on in-situ linkage

Abstract

The invention discloses a full-process sediment treatment dredging system based on in-situ linkage. The full-process sediment treatment dredging system comprises a sampling unit, an in-situ treatment unit, an ectopic dredging unit, a linkage control unit, a data collection unit, a data analysis unit and an ecological monitoring module. According to the invention, after the linkage control unit establishes communication connection with the in-situ treatment unit and the ectopic dredging unit, after the linkage control unit receives the bottom mud pollution degree, the bottom mud treatment unit suitable for the river bottom mud ecological environment is selected through the linkage control unit according to a set threshold value; and the in-situ treatment unit or the ectopic dredging unit is selected according to different degrees of bottom mud pollution, so that the integrated treatment of the whole flow of bottom mud treatment is realized.

Description

Technical Field

[0001] The present invention relates to the field of river management, and in particular to a full-process bottom sediment management dredging system based on in-situ linkage. Background Art

[0002] Sediment is an important component of rivers, lakes and other water bodies, but it is also an important endogenous factor of water pollution. A large amount of organic matter, nitrogen and phosphorus nutrients, heavy metals and other pollutants have accumulated in the sediment. These pollutants decompose under the action of bacteria, which will reduce the concentration of dissolved oxygen in the water and produce foul-smelling gases such as hydrogen sulfide and phosphine, making the river water black and smelly, affecting the water quality and ecological environment. Therefore, dredging and management of sediment has become an important task in the current ecological and environmental protection.

[0003] In the existing technology, sediment dredging technology has been widely used. For example, the cutter suction dredger is one of the most advanced environmentally friendly sediment dredging equipment. The equipment sucks up the surface sediment through the pipeline under the action of the mud pump and transports it to the land yard over a long distance. The cutter suction dredger is equipped with an automatic control and monitoring system, which can greatly improve the accuracy and efficiency of dredging.

[0004] However, in the prior art, sediment treatment needs to rely on other equipment for off-site dredging. Off-site dredging is applicable to heavily polluted sediments. Slightly polluted sediments can generally be solved through in-situ treatment methods such as ecological improvement. For example, a large amount of silt will be generated during sediment dredging. If it is not handled properly, it may cause secondary pollution. In addition, the sediment dredging project is large in volume, and the silt removal is too strong, which may bring a large number of benthic organisms and aquatic plants out of the water body at the same time, destroying the original food chain system. Therefore, when a single in-situ treatment or off-situ dredging is performed on the river channel, the sediment treatment will be incomplete or over-treated. Therefore, it is necessary to sample and analyze the sediment separately. After the analysis, the time period of sediment treatment is extended in this process, which prolongs the time cost and reduces the work efficiency. The full process modules of sediment treatment are complex and diverse. There is a lack of an integrated system in the prior art, which leads to high time cost of sediment treatment and easy waste of resources. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose a full-process sediment management dredging system based on in-situ linkage.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is: A full-process sediment management and dredging system based on in-situ linkage, comprising a sampling unit, an in-situ processing unit, an ex-situ dredging unit, a linkage control unit, a data collection unit, a data analysis unit and an ecological monitoring module, wherein the sampling unit is arranged at the bottom of a river channel for collecting river channel sediment; the in-situ processing unit is arranged in the river channel, and the in-situ processing unit is used to perform in-situ repair treatment on sediment with relatively light pollution; the ex-situ dredging unit is arranged in a specific area outside the river channel, and is used to perform ex-situ dredging on sediment with relatively heavy pollution; the linkage control unit is integrated in the system, and the linkage control unit establishes communication with the sampling unit, the in-situ processing unit and the ex-situ dredging unit The linkage control unit is provided in the linkage control unit and is connected to the communication link, and is used for real-time monitoring of the pollution degree of the riverbed mud, the effect of in-situ restoration and the progress of ex-situ dredging; the data collection unit is arranged in the linkage control unit and is used for collecting various data during the in-situ restoration and ex-situ dredging process; the data analysis unit is arranged in the linkage control unit and is connected to the communication link with the data collection unit, and is used for analyzing various data during the in-situ restoration and ex-situ dredging process collected by the data collection unit; the ecological monitoring module is arranged in the river channel and is connected to the linkage control unit and is used for real-time monitoring of the recovery of the ecosystem and the changes in water quality.

[0007] In some embodiments, the in-situ treatment unit includes a sediment covering device, an artificial reoxygenation device, and a drug delivery device. The sediment covering device is used to cover the barrier material on the sediment surface; the artificial reoxygenation device is used to inject oxygen into the sediment; and the drug delivery device is used to deliver a stabilizing agent into the sediment.

[0008] In some embodiments, the bottom mud covering device includes a covering layer, a first supporting structure and a connecting and fixing device, the first supporting structure is arranged below the covering layer and connected via the connecting and fixing device, and the bottom mud covering device is used to cover the barrier material on the bottom mud surface.

[0009] In some embodiments, the artificial reoxygenation device includes a fixed frame, a float assembly, a second supporting structure, a blower, and a microporous oxygenation aeration device. The float assembly is arranged on both sides of the top of the fixed frame, and the second supporting structure is fixedly connected to the top of the fixed frame; the blower is installed on the second supporting structure; the blower is connected to the microporous oxygenation aeration device through a pipe, and the microporous oxygenation aeration device is arranged at the bottom of the fixed frame.

[0010] In some embodiments, the drug delivery device includes a drug administration unit, a drug dissolving unit and a drug adding and mixing module, the drug administration unit is connected to the drug dissolving unit through a pipeline, and the drug dissolving unit is connected to the drug adding and mixing module.

[0011] In some embodiments, the ex situ dredging unit includes dredging equipment, a mud conveying unit and a waste treatment facility, wherein the dredging equipment is used to cut and extract the bottom mud, the mud conveying unit is used to convey the bottom mud, and the waste treatment facility is used to receive the bottom mud conveyed by the mud conveying unit and further process the bottom mud.

[0012] In some embodiments, the dredging equipment is a cutter wheel dredger, which is driven by a hydraulic motor and directly drives the cutter wheel to rotate through a reduction gear box to suck up the bottom mud.

[0013] In some embodiments, the mud conveying unit includes a mud pump, a mud suction pipe and a mud conveying pipeline, the mud suction pipe and the mud conveying pipeline are connected through the mud pump, and the mud conveying pipeline is connected to a waste treatment facility.

[0014] In some embodiments, the full-process sediment management dredging system based on in-situ linkage is applicable to the full-process sediment management dredging method, which includes the following steps: S1. Collect river sediment through sampling units; S2, the data collection unit collects the data of the sampling unit and sends it to the data analysis unit for analysis; S3, the data analysis unit obtains the analysis result according to the set threshold value; S4. According to the analysis structure, the linkage control unit selects an in-situ processing unit or an ex-situ dredging unit.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Different from the prior art, the full-process sediment management dredging system based on in-situ linkage in the above technical scheme includes a sampling unit, an in-situ processing unit, an ex-situ dredging unit, a linkage control unit, a data collection unit, a data analysis unit and an ecological monitoring module. The sediment is sampled by the sampling module, and then transmitted to the data analysis unit for data analysis through the linkage control unit. After the pollution degree of the sediment is judged, the linkage control unit selects the in-situ processing unit for treatment or the ex-situ dredging unit for treatment; after the linkage control unit establishes a communication connection with the in-situ processing unit and the ex-situ dredging unit, after the linkage control unit receives the sediment pollution degree, the linkage control unit selects a sediment management unit suitable for the ecological environment of the river sediment according to the set threshold value, selects the in-situ processing unit or the ex-situ according to the different degrees of sediment pollution, and monitors the recovery of the ecosystem and the change of water quality through the ecological monitoring module, thereby realizing the integration of the whole process of sediment management, improving the dredging efficiency, ensuring the accuracy of dredging, and reducing the secondary pollution of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of a full-process sediment management and dredging system based on in-situ linkage proposed by the present invention; Figure 2 is a schematic diagram of the structure of an in-situ processing unit proposed in a specific embodiment of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of a bottom mud covering device proposed in a specific embodiment of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of an artificial reoxygenation device proposed in a specific embodiment of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the medicine delivery device proposed in a specific embodiment of the present invention; Figure 6 is a schematic diagram of the structure of an ex situ dredging unit proposed in a specific embodiment of the present invention; Figure 7 is a three-dimensional structural diagram of a mud conveying unit proposed in a specific embodiment of the present invention; Figure 8 It is an example diagram of a method applicable to a full-process sediment management dredging system based on in-situ linkage proposed by the present invention.

[0018] Reference numerals: 1. Bottom mud covering device; 11. Covering layer; 12. First supporting structure; 13. Connecting and fixing device; 2. Artificial reoxygenation device; 21. Fixed frame; 22. Float assembly; 23. Second supporting structure; 24. Blower; 25. Microporous oxygenation and aeration device; 3. Drug delivery device; 31. Dosing unit; 32. Drug dissolving unit; 33. Drug adding and mixing module; 4. Mud conveying unit; 41. Mud pump; 42. Mud suction pipe; 43. Mud conveying pipeline. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0020] The present invention provides a full-process sediment management and dredging system based on in-situ linkage. After the present invention establishes a communication connection with an in-situ processing unit and an ex-situ dredging unit through a linkage control unit, after the linkage control unit receives the sediment pollution degree, the linkage control unit selects a sediment management unit suitable for the river sediment ecological environment according to a set threshold value, and selects an in-situ processing unit or an ex-situ dredging unit according to different degrees of sediment pollution, thereby realizing integrated processing of the full process of sediment management.

[0021] See also Figure 1 The present embodiment provides a full-process sediment management and dredging system based on in-situ linkage, including a sampling unit, an in-situ processing unit, an ex-situ dredging unit, a linkage control unit, a data collection unit, a data analysis unit and an ecological monitoring module. The sampling unit is arranged at the bottom of the river channel to collect river channel sediment; the in-situ processing unit is arranged in the river channel, and the in-situ processing unit is used to perform in-situ repair treatment on the sediment with relatively light pollution; the ex-situ dredging unit is arranged in a specific area outside the river channel, and is used to perform ex-situ dredging on the sediment with relatively heavy pollution; the linkage control unit is integrated in the system, and the linkage control unit is connected with the sampling unit, the in-situ processing unit and the ex-situ dredging unit. The linkage control unit establishes a communication connection, and the linkage control unit is used to monitor the pollution degree of the riverbed mud, the in-situ restoration effect and the ex-situ dredging progress in real time; the data collection unit is arranged in the linkage control unit, and is used to collect various data during the in-situ restoration and ex-situ dredging process; the data analysis unit is arranged in the linkage control unit, and establishes a communication connection with the data collection unit, and the data analysis unit is used to analyze various data during the in-situ restoration and ex-situ dredging process collected by the data collection unit; the ecological monitoring module is arranged in the river channel, and establishes a communication connection with the linkage control unit, and the ecological monitoring module is used to monitor the recovery of the ecosystem and the changes in water quality in real time.

[0022] In this embodiment, the sampling unit is a common soil sampling device, and the soil sampler is further preferably provided with a high-precision positioning system, which can automatically collect sediment according to the preset sampling points. During the sampling process, the high-precision positioning system will record the position, depth and sampling time of each sampling point to ensure the accuracy and traceability of the data. The in-situ processing unit is composed of a series of microbial reactors installed in the river channel, which are equipped with specific microbial communities and can degrade organic pollutants and heavy metals in the sediment. The ex-situ dredging unit is set in a specific area outside the river channel. When the sediment is heavier, the dredging ship will use the sludge suction device to extract the sediment from the river channel. The linkage control unit is the core of the whole system, which is composed of a high-performance computer and a set of customized software systems. The unit establishes a communication connection with the sampling unit, the in-situ processing unit and the ex-situ dredging unit by wireless or wired means, and monitors the working status of each unit and the pollution degree of the river sediment in real time. At the same time, the linkage control unit is also responsible for receiving and processing data from the data collection unit and the ecological monitoring module. The data collection unit is integrated in the linkage control unit and is responsible for collecting various data during the in-situ remediation and ex-situ dredging process, including the degree of sediment pollution, treatment efficiency, energy consumption, etc. These data are transmitted to the linkage control unit in real time through sensors and monitoring equipment. The data analysis unit is also integrated in the linkage control unit, using advanced algorithms and models to analyze and mine the collected data. By analyzing the data, the system can evaluate the effects of in-situ remediation and ex-situ dredging, optimize treatment strategies, and improve governance efficiency. The ecological monitoring module consists of a series of water quality monitoring stations and ecological monitoring equipment, which are distributed in different locations in the river. These devices can monitor changes in water quality and the recovery of the ecosystem in real time, such as dissolved oxygen content, ammonia nitrogen concentration, and the types and number of aquatic organisms. The monitoring data is transmitted to the linkage control unit wirelessly.

[0023] In this embodiment, the sampling unit collects sediment at the bottom of the river according to the preset sampling scheme. The collected sediment samples are transported to the laboratory through the pipeline system for analysis and detection to determine the degree of pollution. The linkage control unit judges the degree of pollution of the sediment according to the detection results of the sampling unit, and automatically decides whether to adopt the treatment method of in-situ repair or ex-situ dredging. For the sediment with less pollution, the linkage control unit will guide it to the in-situ treatment unit for repair; for the sediment with more pollution, the ex-situ dredging unit will be triggered for dredging. In the in-situ treatment unit, the microbial reactor biodegrades the sediment to reduce its pollution level. In the ex-situ dredging unit, the dredging ship extracts the more polluted sediment from the river and transports it to the treatment plant for further treatment. At the same time, the ecological monitoring module monitors the recovery of water quality and ecosystem in real time, providing feedback and adjustment basis for the system. The data collection unit collects various data in the process of in-situ repair and ex-situ dredging, and analyzes and mines them through the data analysis unit. By analyzing the data, the system can evaluate the treatment effect, optimize the treatment strategy, and improve the governance efficiency.

[0024] In this embodiment, after establishing a communication connection with the in-situ processing unit and the ex-situ dredging unit through the linkage control unit, after the linkage control unit receives the degree of sediment pollution, the linkage control unit selects a sediment treatment unit suitable for the river sediment ecological environment according to the set threshold, and selects the in-situ processing unit or the ex-situ dredging unit according to the different degrees of sediment pollution, thereby realizing integrated processing of the entire sediment treatment process.

[0025] Furthermore, in some embodiments, the in-situ treatment unit includes a sediment covering device 1, an artificial reoxygenation device 2, and a drug delivery device 3. The sediment covering device 1 is used to cover the barrier material on the sediment surface; the artificial reoxygenation device 2 is used to inject oxygen into the sediment; and the drug delivery device 3 is used to deliver stabilizing agents into the sediment.

[0026] In this embodiment, the sediment covering device 1 can automatically lay barrier materials on the surface of the sediment according to a preset covering path. The barrier materials usually adopt geomembranes, geotextiles and other materials with water-proof and air-proof properties, aiming to prevent pollutants in the sediment from being released to the overlying water body. The artificial reoxygenation device 2 is intended to increase the dissolved oxygen content in the sediment during the reoxygenation process, promote the growth and activity of aerobic microorganisms, thereby accelerating the decomposition of organic matter and the degradation of pollutants in the sediment. The agent delivery device 3 is used to deliver stabilizing agents, such as iron salts, aluminum salts, lime, etc. These agents can react chemically with pollutants in the sediment to form stable compounds, reducing their mobility and bioavailability. The delivery nozzle sprays the agent evenly on the surface of the sediment or injects it into the sediment according to the preset delivery plan.

[0027] In this embodiment, when the sampling unit detects that there is a risk of pollution in the riverbed mud, the linkage control unit will trigger the in-situ treatment unit to work, and the mud covering device 1 will automatically lay barrier materials on the mud surface according to the preset covering path to form a physical barrier to prevent pollutants in the mud from being released to the overlying water body. After the mud covering is completed, the linkage control unit will start the artificial reoxygenation device 2 to evenly spray compressed oxygen on the mud covering layer 11 or penetrate the covering layer 11 to directly act on the mud. The reoxygenation process is intended to increase the dissolved oxygen content in the mud, promote the growth and activity of aerobic microorganisms, and thus accelerate the decomposition of organic matter and the degradation of pollutants in the mud. At the same time or after artificial reoxygenation, the linkage control unit will trigger the agent delivery device 3 to work. The agent delivery device 3 will evenly spray the stabilizing agent on the mud surface or inject it into the mud according to the preset delivery plan. The agent reacts chemically with the pollutants in the mud to form stable compounds, reducing their mobility and bioavailability.

[0028] Furthermore, in this embodiment, the bottom mud covering device 1 includes a covering layer 11, a first supporting structure 12 and a connecting and fixing device 13. The first supporting structure 12 is arranged below the covering layer 11 and is connected through the connecting and fixing device 13. The bottom mud covering device 1 is used to cover the barrier material on the bottom mud surface.

[0029] In this embodiment: the cover layer 11 is usually made of inert materials, special reaction materials or active materials. For example, iron tailings, cement, activated carbon, apatite, organophilic clay, low permeability clay, etc. The selection of these materials depends on the pollution type, degree of pollution and restoration goals of the sediment. The main function of the cover layer 11 is to stabilize sediments, prevent sediment resuspension, reduce the migration and release of pollutants, protect aquatic biological communities, and control the permeability or migration of pollutants through adsorption or chemical reactions. The first support structure 12 is used to support the cover layer 11 to ensure that it can stably cover the sediment. In some designs, the first support structure 12 may include a buoyancy support layer (such as a bamboo mesh structure), a plywood layer, etc., which can enhance the stability and durability of the cover layer 11. The connecting fixture 13 is used to prevent the cover layer 11 from being washed by water or damaged by wind and waves, ensuring that it can maintain its integrity and functionality for a long time.

[0030] In this embodiment, firstly, according to the distribution of riverbed sediment and the treatment requirements, the first support structure 12 is designed and installed, and then the covering layer 11 is laid on the supporting structure and firmly connected to the supporting structure using the connecting and fixing device 13. In this way, the covering layer 11 and the supporting structure together constitute a stable sediment covering device 1, which can effectively prevent the release of sediment pollutants.

[0031] Furthermore, in some embodiments, the artificial reoxygenation device 2 includes a fixed frame 21, a float assembly 22, a second supporting structure 23, a blower 24, and a microporous oxygenation aeration device 25. The float assembly 22 is arranged on both sides of the top of the fixed frame 21, and the second supporting structure 23 is fixedly connected to the top of the fixed frame 21; the blower 24 is installed on the second supporting structure 23; the blower 24 is connected to the microporous oxygenation aeration device 25 through a pipeline, and the microporous oxygenation aeration device 25 is arranged at the bottom of the fixed frame 21.

[0032] In this embodiment, the fixed frame 21 serves as the main structure of the entire device. The fixed frame 21 is made of corrosion-resistant and high-strength materials, such as stainless steel or reinforced plastic, to ensure its stability and durability in a long-term underwater environment. The float assembly 22 is arranged on both sides of the top of the fixed frame 21 to provide buoyancy for the device so that it can float stably on the water surface. The float material is made of lightweight and high-strength materials such as high-density polyethylene to ensure its corrosion resistance and welfare stability. The second supporting structure 23 is used to support the blower 24 and withstand the vibration and load when the blower 24 is running. The blower 24 is a power source for providing oxygen. The selection of the blower 24 needs to be determined based on the area, depth and required amount of oxygen of the treated water body. Usually, an energy-efficient blower 24 is used to reduce energy consumption and operating costs. The microporous oxygen aeration device 25 is arranged at the bottom of the fixed frame 21 and is a key component for oxygen release. By adopting microporous aeration technology, compressed air is evenly dispersed into the water body through tiny pores to form tiny bubbles, thereby increasing the dissolved oxygen content of the water body.

[0033] In this embodiment, when the device is started, the blower 24 starts working, sucking in air and compressing it into high-pressure gas. The high-pressure gas is transported to the microporous layer aeration device through a pipeline. In the microporous oxygen-enhancing aeration device 25, the high-pressure gas is rapidly released into the water body through the smiling pores to form a large number of tiny bubbles. These bubbles gradually dissolve during the rising process in the water, thereby increasing the dissolved oxygen content of the water body. As the dissolved oxygen content increases, the activity of aerobic microorganisms in the water body is enhanced, which accelerates the decomposition and transformation of organic pollutants, thereby improving water quality.

[0034] Furthermore, in some embodiments, the drug delivery device 3 includes a drug delivery unit 31 , a drug dissolving unit 32 and a drug adding and mixing module 33 , the drug delivery unit 31 is connected to the drug dissolving unit 32 through a pipeline, and the drug dissolving unit 32 is connected to the drug adding and mixing module 33 .

[0035] In this embodiment, the dosing unit 31 is the starting part of the drug delivery device 3, which is responsible for delivering the drug raw materials (such as stabilizing agents, coagulants, etc.) into the water body. The dosing unit 31 is generally a dosing pump, which is responsible for extracting the drug from the storage tank and accurately delivering it to the water body to be treated. Common types of dosing pumps include metering pumps, peristaltic pumps, etc. These pumps have the advantages of high precision, corrosion resistance, and easy maintenance. The dissolving unit 32 is located after the dosing unit 31, and is responsible for dissolving the drug raw materials in water to form a uniform drug solution. The dosing and mixing module 33 is the core part of the drug delivery device 3. The agent delivery device 3 is responsible for evenly mixing the dissolved agent solution into the water body to be treated. During or after artificial reoxygenation, the linkage control unit will trigger the agent delivery device 3 to work. The delivery unit 31 will spray the stabilizing agent evenly on the surface of the sediment or inject it into the sediment according to the preset delivery plan. The agent reacts chemically with the pollutants in the sediment to form stable compounds, reducing their mobility and bioavailability. The reoxygenation process is intended to increase the dissolved oxygen content in the sediment, promote the growth and activity of aerobic microorganisms, and thus accelerate the decomposition of organic matter in the sediment and the degradation of pollutants.

[0036] In this embodiment, the joint control unit puts the agent into the drug adding and mixing module 33 according to the preset dosage. The drug adding and mixing module 33 fuses the agent and transports it to the dissolving unit 32 for dissolution to form a uniform agent solution, which is then evenly mixed into the water body to be treated by spraying, stirring or diffusion of the drug dosing device.

[0037] Furthermore, in some embodiments, the ex situ dredging unit includes dredging equipment, a mud conveying unit 4 and a waste treatment facility, wherein the dredging equipment is used to cut and extract the bottom mud, the mud conveying unit 4 is used to convey the bottom mud, and the waste treatment facility is used to receive the bottom mud conveyed by the mud conveying unit 4 and further process the bottom mud.

[0038] In this embodiment, the dredging equipment is the core part of the ex situ dredging unit, which is responsible for cutting and extracting the bottom mud in the river channel. The mud conveying unit 4 is used to transport the bottom mud extracted by the dredging equipment to the waste treatment facility. The waste treatment facility is the terminal part of the ex situ dredging unit, which is responsible for receiving the bottom mud transported by the mud conveying unit 4. Common waste treatment facilities usually include sedimentation tanks, dewatering machines, solid waste treatment systems, etc. to treat the bottom mud.

[0039] In this embodiment, when the bottom mud needs to be dredged, the dredging equipment is started, seven cutters begin to rotate and cut the bottom mud, and the cut bottom mud is extracted to form mud. The mud is transported to the waste treatment facility through the mud conveying unit. After the mud arrives at the waste treatment facility, it first enters the sedimentation tank for solid-liquid separation. The precipitated solid matter enters the dewatering machine for further dehydration treatment. The solid matter then enters the solid waste treatment system for harmless treatment or resource utilization.

[0040] Furthermore, in some embodiments, the dredging equipment is a cutter wheel dredger, which is driven by a hydraulic motor and directly drives the cutter wheel to rotate through a reduction gear box to suck up the bottom mud.

[0041] In this embodiment, the dredging equipment preferably adopts the common cutter wheel dredger in the prior art. Compared with the traditional dredging method, the cutter wheel dredger has higher dredging efficiency, can be applied to high-hardness clay and other types of bottom mud, and is suitable for excavation operations in underwater engineering. Its structure generally includes a hull, a cutter wheel device and a power system. The hull serves as the supporting structure of the entire dredger. The cutter wheel is composed of multiple blades, which cut and excavate the bottom mud by rotation. The cutter wheel dredger usually uses a hydraulic motor or engine to provide power, and transmits power to the cutter wheel drive to rotate through a transmission device.

[0042] In this embodiment, by using a cutter wheel dredger to carry out dredging work, the work efficiency of dredging the bottom mud in the dredging process is effectively improved. The dredging efficiency is high, and it can adapt to the bottom mud management projects in various complex waters, and has broad application prospects.

[0043] Furthermore, in some embodiments, the mud conveying unit 4 includes a mud pump 41, a mud suction pipe 42 and a mud conveying pipeline 43, the mud suction pipe 42 and the mud conveying pipeline 43 are connected through the mud pump 41, and the mud conveying pipeline 43 is connected to the waste treatment facility.

[0044] In this embodiment, the mud pump 41 serves as a power source for mud transportation. The mud pump 41 has a strong washing and conveying capacity, which can ensure the smooth flow of mud in the pipeline. One end of the mud suction pipe 42 is connected to the excavation part of the dredging equipment, such as the cutter wheel of a cutter wheel dredger, and the other end is connected to the mud pump 41 to suck the excavated mud into the pipeline. The mud conveying pipeline 43 connects the mud pump 41 and the waste treatment facility to transport the mud from the excavation site to the treatment site, and effectively transports the excavated bottom mud from the dredging site to the waste treatment facility for treatment. The transportation efficiency is high, the operation is simple, and it is easy to maintain and maintain.

[0045] In this embodiment, the dredging equipment excavates the bottom mud in the designated waters, and the excavated mud is sucked into the mud pump 41 of the mud conveying unit 4 through the mud suction pipe 42. After the mud pump 41 is started, it generates strong fluidity and pressure, sucking the mud from the mud suction pipe 42 and conveying it through the mud conveying pipeline 43. The mud maintains a certain flow rate and pressure in the pipeline to ensure its smooth flow and avoid blockage.

[0046] Further, in some embodiments, the full-process sediment management dredging system based on in-situ linkage is applicable to a full-process sediment management dredging method, and the method includes the following steps: S1. Collect river sediment through sampling units; S2, the data collection unit collects the data of the sampling unit and sends it to the data analysis unit for analysis; S3, the data analysis unit obtains the analysis result according to the set threshold value; S4. Based on the analysis results, the linkage control unit selects an in-situ processing unit or an ex-situ dredging unit.

[0047] In this embodiment, the sampling unit collects sediment samples in the river channel and sends them to the data collection unit. The data collection unit collects the sampling data and sends it to the data analysis unit through the data transmission module. After receiving the data, the data analysis unit performs preprocessing and analysis to obtain information such as the pollution degree and composition of the sediment. According to the preset threshold, the data analysis unit determines whether the sediment needs to be processed and the treatment method. The linkage control unit receives the results of the data analysis unit and selects corresponding control measures according to the judgment results. If the sediment pollution degree is relatively light and suitable for on-site treatment, the linkage control unit will start the in-situ treatment unit. If the sediment pollution degree is relatively heavy or requires a more complex treatment process, the linkage control unit will select the ex-situ dredging unit. The linkage control unit is also responsible for coordinating the operation between the various units to ensure the smooth progress of the entire treatment process.

[0048] In this embodiment, through the close coordination of multiple links such as sampling, analysis, decision-making and execution, rapid response and precise control of river sediment pollution problems are achieved. According to the degree and composition of sediment pollution, the system can flexibly choose different control methods such as in-situ treatment or ex-situ dredging. Both the in-situ treatment unit and the ex-situ dredging unit use advanced environmental protection technologies and equipment to ensure that the impact of the control process on the environment is minimized.

[0049] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Different from the prior art, the full-process sediment management dredging system based on in-situ linkage in the above technical scheme includes a sampling unit, an in-situ processing unit, an ex-situ dredging unit, a linkage control unit, a data collection unit, a data analysis unit and an ecological monitoring module. The sediment is sampled by the sampling module, and then transmitted to the data analysis unit for data analysis through the linkage control unit. After the pollution degree of the sediment is judged, the linkage control unit selects the in-situ processing unit for treatment or the ex-situ dredging unit for treatment; after the linkage control unit establishes a communication connection with the in-situ processing unit and the ex-situ dredging unit, after the linkage control unit receives the sediment pollution degree, the linkage control unit selects a sediment management unit suitable for the ecological environment of the river sediment according to the set threshold value, selects the in-situ processing unit or the ex-situ according to the different degrees of sediment pollution, and monitors the recovery of the ecosystem and the change of water quality through the ecological monitoring module, thereby realizing the integration of the whole process of sediment management, improving the dredging efficiency, ensuring the accuracy of dredging, and reducing the secondary pollution of the water body.

[0050] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0051] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0052] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A full-process sediment management and dredging system based on in-situ linkage, characterized in that: include: A sampling unit, which is arranged at the bottom of the river channel and is used to collect river channel sediment; An in-situ treatment unit is arranged in the river channel and is used for in-situ remediation of lightly polluted sediment; An ex situ dredging unit, which is arranged in a specific area outside the river channel and is used for ex situ dredging of heavily polluted sediments; A linkage control unit, which is integrated in the system, establishes communication connection with the sampling unit, the in-situ processing unit and the ex-situ dredging unit, and is used to monitor the pollution degree of riverbed mud, the in-situ remediation effect and the ex-situ dredging progress in real time; A data collection unit, which is arranged in the linkage control unit and is used to collect various data during the in-situ repair and ex-situ dredging process; A data analysis unit, which is arranged in the linkage control unit and establishes a communication connection with the data collection unit, and is used to analyze various data collected by the data collection unit during the in-situ repair and ex-situ dredging process; An ecological monitoring module is arranged in the river channel and establishes a communication connection with the linkage control unit. The ecological monitoring module is used for real-time monitoring of the recovery of the ecosystem and the change of water quality.

2. The full-process sediment management and dredging system based on in-situ linkage according to claim 1 is characterized in that: The in-situ processing unit comprises: A bottom mud covering device, the bottom mud covering device is used to cover the barrier material on the bottom mud surface; An artificial reoxygenation device, which is used to inject oxygen into the bottom mud; A reagent delivery device is used to deliver a stabilizing agent into the bottom mud.

3. The full-process sediment management and dredging system based on in-situ linkage as claimed in claim 2 is characterized in that: The bottom mud covering device comprises: Covering layer; A first supporting structure is disposed below the covering layer and connected via a connecting and fixing device.

4. The full-process sediment management and dredging system based on in-situ linkage as claimed in claim 2 is characterized in that: The artificial reoxygenation device comprises: Fixed frame; A buoy assembly, wherein the buoy assembly is arranged on both sides of the top of the fixed frame; A second supporting structure, the second supporting structure is fixedly connected to the top of the fixed frame; a blower, the blower being mounted on the second supporting structure; The microporous oxygen-increasing aeration device is connected with the microporous oxygen-increasing aeration device through a pipeline, and the microporous oxygen-increasing aeration device is arranged at the bottom of the fixed frame.

5. The full-process sediment management and dredging system based on in-situ linkage as claimed in claim 2 is characterized in that: The drug delivery device comprises: Dosage unit; A drug dissolving unit, wherein the drug administration unit is connected to the drug dissolving unit through a pipeline; The drug adding and mixing module, the drug dissolving unit is connected with the drug adding and mixing module.

6. The full-process sediment management and dredging system based on in-situ linkage according to claim 1 is characterized in that: The ex situ dredging unit comprises: Dredging equipment, the dredging equipment is used to cut and extract bottom mud; A mud conveying unit, wherein the mud conveying unit is used to convey bottom mud; The waste treatment facility is used to receive the bottom mud transported by the mud transport unit and further process the bottom mud.

7. The full-process sediment management and dredging system based on in-situ linkage according to claim 6 is characterized in that: The dredging equipment is a cutter wheel dredger, which is driven by a hydraulic motor and directly drives the cutter wheel to rotate through a reduction gear box to lift the bottom mud.

8. The full-process sediment management and dredging system based on in-situ linkage as claimed in claim 6 is characterized in that: The mud conveying unit comprises: Mud pump; Suction pipe; A mud conveying pipeline, wherein the mud suction pipe and the mud conveying pipeline are connected through a mud pump, and the mud conveying pipeline is connected to a waste treatment facility.

9. The full-process sediment management and dredging system based on in-situ linkage according to any one of claims 1 to 8, characterized in that: It is applicable to a full-process sediment management dredging method, which comprises the following steps: S1. Collect river sediment through sampling units; S2, the data collection unit collects the data of the sampling unit and sends it to the data analysis unit for analysis; S3, the data analysis unit obtains the analysis result according to the set threshold value; S4. According to the analysis structure, the linkage control unit selects an in-situ processing unit or an ex-situ dredging unit.

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