368results about "Mineral mining" patented technology

The invention relates to a deep-ground well hole type flexible mining device and a using method thereof.The deep-ground well hole type flexible mining device comprises an equipment channel well communicated to a mining position, detection equipment and a flexible mining machine, and a power line of the flexible mining machine is connected with a power source outside the well; the flexible mining machine comprises a crushing device for excavating ores and an advancing driving device, the crushing device comprises an expansion arm, a crushing assembly and a crushing power assembly, the advancing driving device comprises a device body, and the device body and the expansion arm are connected in a hinged or rotary connection mode and can relatively move in at least two freedom degree directions. And the expansion arms and the device body are folded and unfolded, so that the flexible mining machine can be switched between a first state of passing through the equipment channel well and a second state of performing mining work. The mining operation can be carried out under the condition that personnel do not need to descend into a well, the mining requirements of a deep bottom layer and a seabed bottom layer can be met, and the mining difficulty and the mining cost are reduced.

The invention discloses a universal multifunctional obstacle crossing vehicle body system for a deep-sea mining vehicle. The universal multifunctional obstacle crossing vehicle body system comprises a main vehicle frame, a hydraulic suspension system and an independent driving system. The hydraulic suspension system comprises a main supporting hydraulic push rod, an upper vehicle body and lower vehicle body connecting frame, an L-shaped driving system connecting frame, hydraulic steering push rods on the two sides, a steering wheel, a steering wheel bottom fixing piece, a spherical higher pair connecting shaft, a driving system universal connector and a corresponding hydraulic control loop. The independent driving system comprises a track system, a box body, a pitching hydraulic motor, a driving motor, an auxiliary bearing wheel and an auxiliary tensioning wheel set. Compared with a traditional crawler-type chassis, the universal obstacle crossing chassis provided by the invention has better obstacle crossing ability and flexibility, and can cope with more complex seabed conditions. And meanwhile, the universal chassis can adapt to different types of working environments by replacing different types of independent driving modules, so that the universal chassis has excellent multi-terrain adaptability. By means of the universal vehicle chassis, the passing rate and the working efficiency of various deep-sea mining devices in the complex seabed environment can be well improved.

The invention provides an intelligent collection method for deep sea polymetallic nodules. The method comprises the following steps: S1, capturing a tuberculosis image through a seabed camera of a mining vehicle; s2, carrying out graying processing on the acquired image; s3, carrying out binarization processing on the preprocessed tuberculosis image; s4, expanding the processed tuberculosis image based on a morphological reconstruction method; s5, determining the particle size and shape of the tuberculosis; s6, comparing with existing tuberculosis data, and determining the quality of the tuberculosis; s8, selecting the optimal advancing route of the mining vehicle, and determining the working condition of the advancing route; s9, further adjusting jet parameters according to the determined information; s10, collecting the tuberculosis washed out by the jet flow; s11, lifting the collected tuberculosis to a collection ship; s12, carrying out collection result detection on the mining area; and S13, if the collection result does not reach the standard, continuing collection, and if the collection result reaches the standard, ending collection. Through the steps, the intelligent and efficient collection system for the deep sea polymetallic nodules is formed.

The invention relates to the technical field of deep-sea mining, and discloses an extrusion rotary type deep-sea multi-metal nodule low-disturbance collecting device which comprises a set of skid mechanisms formed by all-terrain skid plates arranged side by side, all-terrain skid plates are connected with direction skid through steering pull rods, each skid mechanism is provided with a grating storage cabin, and the grating storage cabins are connected with the all-terrain skid plates through steering pull rods. The inlet end of each grid storage bin is connected with a grid pressing shovel installed on the skid mechanism through a rotary collecting head. According to the invention, the all-terrain skid plates are used as walking mechanisms, so that low-disturbance advancing can be realized on one hand when the multi-metal nodules are collected by walking, and on the other hand, the advancing direction and operation attitude can be adjusted in real time by the cooperation of the multiple groups of all-terrain skid plates, so as to meet different collection requirements of the multi-metal nodules; meanwhile, a combined structure of the grating pressing shovel, the rotary collection head and the grating storage cabin is taken as a core, so that the multi-metal nodule in a buried or semi-buried state can be shoveled up in a low-disturbance manner, and environment-friendly collection is realized.

The invention provides a deep-sea rare earth deposit mine collecting car and an operation method thereof. According to the method, a double-S-shaped reciprocating collection path is planned through an intelligent controller on the basis of a mining vehicle carrying a multi-stage collection device and aiming at the characteristic that deep sea rare earth is enriched in a sheet and multi-layer mode. According to the difference between the depth and compactness of the sediments, three stages of cutter suction units are adopted for layered collection: the first stage is used for 0-2m surface soft sediments, and the rotating speed of a reamer is 200-400r / min; the second stage is used for 2-4m middle-layer compact sediments, and the rotating speed is 350-600r / min; the third stage is used for 4-10m deep high-strength sediment, and the rotating speed is 500-700r / min. The terrain, posture and pressure are monitored in real time during operation, the posture, speed and obstacle avoidance of the vehicle body are automatically adjusted, and stable collection is achieved. The method has the advantages of accurate layering, comprehensive coverage, small environmental disturbance and high reliability, and is suitable for efficient, safe and environment-friendly collection of deep sea rare earth deposits.

The invention provides a movable telescopic vector adsorption relay bin and method for deep-sea mining gas lift lifting. The movable telescopic vector adsorption relay bin comprises a vector adsorption device in the relay bin, a storage bin chamber is arranged in the relay bin, a top plate is arranged at the top of the storage bin chamber, and the outer edge of the top plate is fixed to the inner wall of the relay bin; the relay bin is connected with a lifting pipeline and a conveying pipeline, the lower ends of the lifting pipeline and the conveying pipeline are inserted into the storage bin, and the upper ends of the lifting pipeline and the conveying pipeline penetrate out of the relay bin. The lifting pipeline and the conveying pipeline penetrate through the top plate; the vector adsorption device comprises a vector telescopic adsorption pipeline sleeving the outer wall of the lifting pipeline, and the vector telescopic adsorption pipeline is connected with a driving mechanism; the lower portion of the vector telescopic adsorption pipeline is connected with a vector adsorption pipeline located in the storage bin through a rotating mechanism. And the interiors of the lifting pipeline, the vector telescopic adsorption pipeline and the vector adsorption pipeline are communicated. The structure mechanism is feasible, the innovation degree is high, and the anti-blocking effect of the vector adsorption device and the omnibearing particle lifting effect can be achieved.

The invention discloses a seabed mineral and biological resource collection device, equipment and method. The device comprises a suction head, an automatic return mechanism, an automatic lifting mechanism and an environment sensing module, the suction head is used for sucking seabed to-be-collected objects; the automatic return mechanism is arranged in the suction head and consists of a main body frame, a torsional spring hinge, a limiter and a guide plate, and the guide plate can passively adjust the height away from the bottom according to the size of an object to be mined on the seabed through the matching of the torsional spring hinge and the limiter; the automatic lifting mechanism is located on one side of the suction head and comprises a carrying platform, a lifting module, a gravity balance swing arm and a posture sensing module, and the posture sensing module monitors the posture of the suction head and adjusts the lifting module, so that the suction head is kept horizontal and the height away from the bottom is preset; the environment sensing module can sense environment parameters in real time, accurately recognize physical characteristics of seabed to-be-collected objects and dynamically adjust the flow of a water pump to reduce overall energy consumption. According to the invention, double effects of efficient collection and energy-saving collection of submarine minerals and biological resources are realized.

The invention discloses a deep sea rare earth collecting device, a deep sea rare earth collecting system and a collecting method.The deep sea rare earth collecting device comprises a crawler-type walking frame and further comprises an isolation cover installed on the periphery of the crawler-type walking frame in a covering mode, and an ore collecting cavity is formed between the isolation cover and the crawler-type walking frame; a plurality of high-pressure jet flow collecting assemblies used for spraying out high-pressure jet flow to flush up deep sea rare earth are arranged below the isolation hood body. When the deep sea rare earth collecting device is located on the seabed, the isolation cover body makes contact with the seabed, and the ore collecting cavity is of a closed structure. The deep sea rare earth collecting device with the isolation hood body, the deep sea rare earth collecting system and the collecting method have the advantages of being good in collecting walking stability, high in collecting efficiency, small in generation of seabed plume, small in influence on the seabed environment and the like, and large-scale efficient mining of deep sea rare earth can be achieved easily.

The invention discloses a deep sea rare earth mining tailing in-situ backfill type double-station alternate mine collecting system which comprises two linear guide rails installed at the bottom of a mine car body, each linear guide rail is provided with a telescopic assembly through a carrying position of the linear guide rail, and the telescopic assemblies can be horizontally moved by the linear guide rails in the direction parallel to the advancing direction. A collecting pipe capable of independently and vertically stretching out and drawing back is arranged on a movable part of the telescopic assembly, and the collecting pipe can be driven by the telescopic assembly to horizontally move in the direction perpendicular to the advancing direction. A double-station alternate mine collection mode is adopted, and the two linear guide rails and the two telescopic assemblies are arranged at the bottom of the mine car body to control the two collection pipes, so that after any collection pipe completes collection, the collection pipes can be transferred to two stations in the mining direction through cooperation of the linear guide rails and the telescopic assemblies; the two collecting pipes can achieve double-station uninterrupted alternate ore collection, and the ore collection efficiency is effectively improved.

The invention discloses a global cost optimization method based on deep-sea mining operation system safety. The method comprises the following steps: determining design parameters of each system based on global cost optimization and a coupling relationship between the systems; materials are selected based on light load-stability, a self-cleaning nozzle is carried, and a crawler walking system is optimized; a two-way hydraulic-pneumatic energy conversion mechanism is used for optimizing a buoyancy compensation system; a hybrid power efficiency optimization algorithm is adopted to optimize a water surface support system based on a safety burden mitigation technology; a planetary gear is used for amplifying torque, and an electrolyzed water trigger type release mechanism is adopted in the laying and recycling process, so that a laying and recycling system is optimized; based on the principle of low energy consumption, a three-axis IMU data fusion technology is applied, and a three-degree-of-freedom active-passive combined heave compensation system is optimized; the method can effectively solve the problem of high cost of deep-sea mining, realizes safety, burden reduction, cost reduction and benefit increase of a deep-sea mining system, and optimizes the global cost of deep-sea mining operation.

The invention discloses a relay bin device capable of intelligently detecting and adjusting the mineral height and a deep-sea mining system.The relay bin device comprises a relay bin, a height adjusting unit, a detecting unit and a self-cleaning unit, the height adjusting unit comprises a shell assembly, an air bag assembly and a piston assembly, the shell assembly is arranged in the relay bin, and the air bag assembly is arranged in the relay bin; the air bag assembly is arranged in the shell assembly, a high-pressure air chamber is formed in the air bag assembly, the movable end of the piston assembly extends into the high-pressure air chamber and is in sealed sliding connection with the high-pressure air chamber, and the movable end of the piston assembly can move up and down in the axial direction of the relay bin by inflating and deflating the high-pressure air chamber so as to adjust the height of mineral particles; the detection unit comprises a high-pressure waterproof radar and a high-pressure waterproof ultrasonic sensor, and the high-pressure waterproof radar and the high-pressure waterproof ultrasonic sensor are arranged on the two sides of a discharging port of the relay bin respectively; the cleaning end of the self-cleaning unit faces the high-pressure waterproof ultrasonic sensor and is used for cleaning the high-pressure waterproof ultrasonic sensor regularly.

The invention discloses a mining method using a mining vehicle with a rear collecting head. The mining method comprises the following steps that the volume of a mixture to be absorbed by a mud pump within time t is set; setting the optimal volume concentration of the mixture absorbed by the dredge pump; determining the volume of undisturbed soil absorbed by the dredge pump within the time t according to the volume of the mixture to be absorbed by the dredge pump within the time t and the optimal volume concentration of the mixture absorbed by the dredge pump; according to the digging depth of the collecting head, the width of the collecting head, the advancing speed of the collecting head and the time t, the volume of the volume undisturbed soil collected by the collecting head is collected; introducing a water body through a primer pump to dilute the undisturbed soil collected by the collection head to the optimal volume concentration of the mixture absorbed by the mud pump; according to a mass conservation method, the volume of the undisturbed soil absorbed by the dredge pump and the volume of the undisturbed soil collected by the collecting head within the time t, the relation between the collecting depth of the collecting head and the advancing speed of the collecting head is determined. The defect that the mining vehicle is poor in performance matching performance is overcome.

The invention relates to an airlift pump system for conveying solid particles in underwater mining. The airlift pump system comprises a material collecting system, a lifting system, a pneumatic regulation and control system, a recycling system and the like. The material collecting system collects solid particles and guides the solid particles to a lifting opening of the lifting system, the material collecting system comprises a material containing hopper, a material guiding groove, a material collecting table and the like, the lifting system lifts and separates the solid particles and a liquid mixture, and the lifting system comprises an inclined hole air lift pump and a lifting pipe; the pneumatic regulation and control system comprises an electromagnetic valve, a plurality of auxiliary gas injection chambers, an optical fiber strain sensor, a microwave concentration sensor and the like. The recovery system comprises a gas-liquid separator, an axial flow turbine generator, an energy storage device, a stock bin and the like. Pipeline vibration and ore pulp concentration are monitored in real time through the optical fiber strain sensor and the concentration sensor, a PLC control algorithm is combined, the conventional operation mode, the vibration suppression operation mode and the anti-blocking operation mode are automatically switched, and the safety and stability of the airlift pump are greatly improved. The micro axial flow turbine generator is additionally arranged at the exhaust end, and tail gas kinetic energy is converted into electric energy.

The invention discloses a mineral hydraulic lifting system and method for deep-sea mining, and relates to the technical field of deep-sea mining, the mineral hydraulic lifting system for deep-sea mining comprises a water surface supporting platform, a slurry pump set, a drill rod, a marine riser, an underwater workstation and a top driving part, the upper end of the water surface supporting platform is provided with the slurry pump set and the top driving part; one end of the drill rod is in transmission connection with the top driving part, the other end of the drill rod penetrates through the water surface supporting platform, the drill rod is sleeved with a marine riser, an annular cavity is formed between the drill rod and the marine riser, and the lower ends of the drill rod and the marine riser are connected with the underwater workstation. A power device and parts of the lifting system are arranged on the water surface, pipe fittings which are connected between the water surface supporting platform and the underwater work station and are only provided with marine risers and drill rods are convenient to control and maintain, the number of underwater equipment is reduced, high-power electrical equipment is reduced, and related power, control and accessory parts can be greatly optimized; the use risk of underwater equipment is reduced, and the reliability of the system is improved.

The invention provides a deep-sea mining system, and relates to the technical field of deep-sea mining. The deep-sea mining system comprises a decision-making layer, the decision-making layer is connected with a coordination layer through a quantum encryption underwater acoustic communication module, the coordination layer is connected with an execution layer through a bionic tentacle electromechanical interface, and the execution layer is connected with a compensation layer through an ecological data bus; the decision-making layer comprises a phase resource management module which comprises a marine rhythm analysis unit, an ore deposit respiration model engine and a mining window decision-making device; the biological contract agreement module comprises a microorganism symbiotic culture cabin, a sound wave induction generator and a tentacle mechanical learning unit; the coordination layer comprises a dynamic topology network which comprises a cluster self-organizing controller, a real-time damage evaluation unit and a topology reconstruction algorithm library. Through collaborative design of the decision-making layer, the coordination layer, the execution layer and the compensation layer, intelligent and efficient deep-sea mining is achieved, and the mining efficiency and the resource utilization rate are remarkably improved.

The invention relates to a green and environment-friendly deep sea mineral conveying system without tail water being discharged to the ocean. The green and environment-friendly deep sea mineral conveying system comprises a tail water circulating system and a mineral conveying system. The tail water circulating system comprises a tail water pump, a tail water pipe and a tail water collecting device; the mineral conveying system comprises an ore pulp pump, a mineral conveying vertical pipe and a relay cabin; one end of the draft tube is connected with the tail water pump, and the other end of the draft tube is connected with the tail water collecting device; the ore pulp pump is connected to the ore conveying vertical pipe in series, the ore conveying vertical pipe is hung on the water surface mining ship in a suspended mode, and the relay cabin is arranged at the tail end of the ore conveying vertical pipe. The relay cabin is connected with the mining vehicle through a hose; the tail water collecting device, the mixing cabin, the ore conveying vertical pipe and the mining ship are sequentially communicated to form a tail water internal circulation path, and no tail water is discharged to the ocean in the ore conveying process. Through fusion design of the tail water discharge pump, the tail water discharge pipe, the tail water collection device and the mineral conveying system, circulation of deep-sea mining tail water in the conveying system is achieved, and the tail water can be prevented from being discharged to the sea.

The invention discloses an air lift system and an air lift method for seabed ore, the air lift system comprises a lift pipe and an air compressor, a compressed air outlet of the air compressor is connected with the lift pipe through an air transmission header pipe, and an outlet of the lift pipe is connected with a backpressure cylinder; when the lifting pipe discharges solid-gas-liquid three-phase fluid into the back pressure cylinder, first pressure is kept in the back pressure cylinder, the first pressure is positive pressure, a gas outlet is formed in the back pressure cylinder, and a gas outlet is formed in the back pressure cylinder; and a first valve used for adjusting the first pressure in the backpressure cylinder so as to control the flow velocity of the solid-gas-liquid three-phase fluid in the lifting pipe is arranged at the gas outlet. According to the pneumatic lifting system and method, the back pressure cylinder is additionally arranged at the outlet of the lifting pipe of the pneumatic lifting system, expansion of compressed air is reduced, and the flow speed of solid-gas-liquid three-phase fluid at the outlet of the lifting pipe can be greatly reduced.

The invention relates to a deep-sea mining full-process pilot test system and a use method thereof in the technical field of deep-sea mining engineering, and the full-process pilot test system mainly comprises a collecting and mining test system, a vertical lifting test system, an ore separation test system and a test measurement monitoring system, the collecting and mining test system comprises a test pool, a deep water test area, a shallow water test area, a fan, a wave maker, a circulating water pump, a mining device, a mining vehicle, a trolley, a wave absorbing plate and a trolley guide rail; the vertical lifting test system comprises a vertical pipeline and a pipeline supporting platform; the ore separation test system mainly comprises an ore separation cabin, an overflow device and a cabin entering energy dissipation device. According to the invention, test research on key technologies and equipment of each subsystem of the pipeline lifting type mining system can be carried out, more importantly, full-process test of the pipeline lifting type mining system can be carried out, collaborative operation characteristics of each subsystem are researched, and the stability and safety of the whole system are explored.

The invention provides a deep-sea mining precise feeding method and device based on intelligent monitoring and regulation, and the method comprises the following steps: a plurality of feed ports are formed in the bottom of a storage tank, each feed port is connected with a spiral feeder, the screw pitches of the spiral feeders are different, and the discharge ports of the spiral feeders are connected with the same main material conveying pipeline; setting an Actor network to predict action parameters based on the state parameters at the current moment; and executing the action parameter, obtaining a real reward value and a state parameter at the next moment based on an execution result of the action parameter, and stopping prediction of the action parameter when the ore concentration of the outlet of the main material conveying pipeline in the state parameter at the next moment meets a preset standard. According to the scheme, the spiral feeders with different screw pitches are arranged, the multiple sensors are installed at the outlet and the inlet of each spiral feeder, and the feeding precision is accurately controlled based on data of the sensors.

The invention relates to the technical field of underwater multi-stage cleaning and transporting integrated treatment systems for deep-sea polymetallic nodules, provides an underwater multi-stage cleaning and transporting integrated treatment system for deep-sea polymetallic nodules, and solves the problem that in the prior art, the loadable capacity of the polymetallic nodules is affected due to the fact that split type multi-stage equipment occupies too large space. The technical problems that in the prior art, due to the fact that a ship needs to be cleaned, uniform treatment needs to be conducted on the ship due to the limitation of the treatment process, blockage is likely to be caused, invalid crushing treatment can occur, and the treatment efficiency is affected are solved, and the device comprises a machine body, a conveying device and a stock bin. The machine body is internally provided with a flushing area, a scrubbing area and a sewage area which are communicated with one another; the sewage area is located below the flushing area and the scrubbing area; a conveying belt used for conveying materials to the scrubbing area to be cleaned is arranged in the sewage area.

The invention belongs to the technical field of underwater operation equipment, and particularly relates to an underwater unmanned aerial vehicle device for deep sea automatic mining and a using method thereof.The underwater unmanned aerial vehicle device comprises a guide pipe paddle body structure, a mineral exploration structure, a positioning navigation structure, a cutter suction pump body structure and a control module; the mineral exploration structure is provided with a mineral exploration end, the positioning navigation structure is provided with a mineral positioning end, the two ends of the cutter suction pump body structure are provided with a pump suction inlet end and a pump suction outlet end respectively, and the control input end of the control module is connected with the mineral exploration structure and the positioning navigation structure. The control output end is connected with the guide pipe paddle body structure, the ore breaking reamer structure and the cutter suction pump body structure. The problems that in the prior art, when a mining vehicle is used for deep-sea mine mining, adaptability is poor, maneuverability is low, pollution is large, and the automation degree is low, so that deep-sea mining difficulty is large, pollution is large, and cost is high are solved.

The deep-sea mining closed type lifting system comprises a water surface supporting unit which comprises a mining ship, a mine-water separation mechanism, a liquid storage tank and a booster pump, and the mine-water separation mechanism, the liquid storage tank and the booster pump are located on the mining ship; the mineral transfer unit is located underwater and comprises a storage tank and a convergence bin located below the storage tank, the storage tank is used for receiving and storing the ores from the mineral collection unit on the seabed, and the bottom of the storage tank is connected with a first inlet of the convergence bin through an opening and closing device; the water return pipe is connected with the outlet of the booster pump and the second inlet of the converging bin; the ore conveying pipe is connected with an outlet of the converging bin and an inlet of the ore-water separating mechanism; wherein the booster pump pumps liquid in the liquid storage tank and conveys the liquid into the convergence bin through the water return pipe, the liquid and ore from the storage tank form ore pulp, then the ore pulp enters the ore conveying pipe and is conveyed to the ore-water separation mechanism through the ore conveying pipe, and the ore-water separation mechanism separates the ore in the ore pulp to form ore liquid and discharges the ore liquid into the liquid storage tank; therefore, seawater on the ocean surface is prevented from being polluted in the ore lifting process of deep-sea mining.

The invention relates to the technical field of marine special equipment, and discloses a multi-metal nodule mining vehicle, a collecting mechanical arm and a mineral collecting system. The multi-metal nodule mining vehicle comprises a plurality of crawler-type advancing subsystems of special structures, effective dispersion of mine vehicle grounding specific pressure is achieved, traction force is improved, disturbance to soft seabed sediment is reduced, it is guaranteed that the crawler-type systems are matched with seabed frequently-fluctuating terrains as much as possible, the terrain adaptability and obstacle crossing ability are improved, and meanwhile the service life of the crawler-type advancing subsystems is prolonged. Based on a buoyancy control hardware architecture of the crawler-type advancing subsystem constructed by a vertical propulsion propeller, an ultrasonic distance sensor, a processor and a memory, an effective and enforceable hardware environment and software environment are created for intelligent local buoyancy control of the crawler-type advancing subsystems of various special structures.

The invention discloses a seabed in-situ polymetallic nodule ore collecting device and method based on an air lifting strategy, the collecting device comprises an air lifting device, an ore conveying pipeline, a gas conveying pipeline, a telescopic hose and a hydraulic suction device with a flow guide cover, and lifting energy is provided through gas conveying; 360-degree large-range coverage is achieved through the telescopic hose, the hydraulic suction equipment collects the ore through negative pressure, raised dust is restrained through the flow guide cover, and finally the ore is carried by means of bubbles to ascend to complete conveying; according to the method, the technical problems of large marine environment disturbance, limited collection range and low improvement efficiency in a traditional collection method are solved, efficient, low-disturbance and large-range in-situ collection of the polymetallic nodule ore is realized, resource exploitation and ecological protection are considered, and the method has remarkable practical value and application prospect.

The invention belongs to the technical field of underwater operation equipment, and particularly relates to a crawler-type deep-sea mining and plume absorbing and purifying device and a using method thereof.The crawler-type deep-sea mining and plume absorbing and purifying device comprises a foundation frame body structure, a collecting, crushing and lifting mine structure, a plume blocking and absorbing structure, a plume absorbing pump structure and a plume filtering structure; the collecting, crushing and lifting ore structure is provided with a collecting, crushing and lifting ore passage and a flushing and filtering ore passage, and the flushing and filtering ore passage is communicated with the collecting, crushing and lifting ore passage; the plume blocking and sucking structure is correspondingly and fixedly connected to the foundation frame body structure. The input end of the plume sucking pump structure communicates with the flushing ore filtering channel and the plume blocking and sucking structure. The plume filtering structure is provided with a sediment output end and a filtered water output end. The problems that in the prior art, a deep-sea mining vehicle possibly causes plume in the ore collecting process, the seabed environment is damaged and polluted, and the requirement for deep-sea environment protection is difficult to meet are solved.

The invention discloses a deep sea polymetallic nodule automatic picking and storing system which comprises a grating type storage cabin, a plurality of collecting openings are formed in the bottom of the grating type storage cabin, grating type telescopic net bags are arranged in the collecting openings, a grating type baffle is arranged at the bottom of the grating type storage cabin, and the grating type telescopic net bags are in linkage with the grating type baffle; the grating type telescopic net bag extends out of the collecting opening and is inserted into the deep position of sea mud to pick up the polymetallic nodules, the grating type telescopic net bag lifts and transports the polymetallic nodules into the grating type storage cabin when returning, and picking and storage are completed synchronously. The grating type telescopic net bag extends out of the collecting opening in the bottom of the grating type storage cabin and is inserted into the deep sea mud to pick up the polymetallic nodule so as to reduce disturbance to the seabed, meanwhile, by means of a linkage mechanism of the grating type baffle and the grating type telescopic net bag, the grating type baffle opens the collecting opening when the grating type telescopic net bag returns, and therefore the collecting effect is improved. And the collection port is closed before the grid type telescopic net bag extends out, so that the collection and storage integration of the deep sea polymetallic nodule is realized.

The invention discloses a deep sea polymetallic nodule mining vehicle which comprises a structural frame. The crawler walking mechanism is arranged at the bottom of the structural frame and used for driving the deep sea polymetallic nodule mining vehicle to move in the preset direction, and the collecting mechanism is arranged on the front portion of the structural frame and used for collecting polymetallic nodules. The conveying and cleaning mechanism is used for directionally conveying the collected polymetallic nodules and separating and desliming the collected polymetallic nodules; the crushing mechanism is used for crushing the conveyed ores; the storage mechanism is arranged at the tail part of the structural frame and is used for storing the crushed ore; the plume restraining mechanism is used for effectively collecting and treating plume generated in the mining process of the deep-sea mining vehicle and impurities carried by manganese nodules; and the environment sensing mechanism is used for sensing the deep sea environment and controlling the crawler walking mechanism and the collecting mechanism. Collection, screening, cleaning and storage are integrated, the mining capacity is improved, and the problem that an existing mining vehicle is low in collection efficiency is solved.

A mining vehicle for mining cobalt-rich crusts ore from the seabed includes a walking mechanism; a supporting arm, a crushing and collecting mechanism and a hydraulic circulation mechanism. The supporting arm is set on the walking mechanism, and a rotating structure is set at the connection between the supporting arm and the walking mechanism for realizing left-right rotation of the supporting arm; at the same time, the supporting arm can be realized to rotate up and down. The crushing and collecting mechanism is set at the front end of the hydraulic circulating mechanism for crushing the ores. The hydraulic circulating mechanism is set on the supporting arm and the walking mechanism, for collecting the ores, and for promoting flocculation and precipitation of the sediments, and for reducing the degree of particle diffusion.

The invention discloses a flow guide structure capable of reducing a deep-sea mining plume winching effect. The mine collector tail guide plate is mounted at the tail of the mine collector and used for guiding water flow to intersect with sediment plume, dissipating turbulent flow kinetic energy and reducing the winding effect. And the guide plate steering device is connected with the guide plate at the tail part of the ore collector and is used for adjusting the direction of the guide plate to adapt to different advancing working conditions of the mining vehicle. And the side guide plates are mounted on the two sides of the mining vehicle and used for guiding water flow to form trailing vortexes, the trailing vortexes intersect with sediment plume, turbulent kinetic energy of the sediment plume is dissipated, and the winding effect is reduced. The flow guide structure effectively reduces the entrainment dust raising effect on sediment on the surface layer of a seabed in the deep-sea mining process by optimizing the interaction between water flow and sediment plume.

The present application relates to the technical fields of deep-sea mining, and particularly relates to a closed deep-sea mineral lifting system, which comprises a sea platform, the sea platform having a first mineral-water separation device and a high-pressure water pump in communication with each other; a circulating pipeline, one end of the circulating pipeline being in communication with the high-pressure water pump, and the other end of the circulating pipeline being in communication with the first mineral-water separation device; a water inlet assembly, the water inlet assembly being in communication with the circulating pipeline; a relay platform, the relay platform being capable of being suspended in seawater, and the relay platform being provided with a storage bin; a water pumping assembly, the water pumping assembly being in communication with the storage bin, and the water pumping assembly being used for discharging seawater in the storage bin into the sea; a mining assembly, the mining assembly being in communication with the storage bin; and a feeding assembly, the feeding assembly being arranged between the storage bin and the circulating pipeline, and the feeding assembly being in communication with the circulating pipeline, and the feeding assembly being used for injecting mineral slurry in the storage bin into the circulating pipeline. The present application can realize efficient lifting of minerals, and reduce the influence on the marine ecology.