A mine site pre-assembly system and method for deep sea mining trials

Abstract

A mining area prefabrication system and method for deep sea mining test, the ship body of the water surface equipment system is provided with a feeder bin for storing ores, the bin is communicated with a mixer, the inlet of a mixing pump on the ship body is communicated with a water source through a mixing pipeline, a branch pipeline is arranged on the mixing pipeline between the mixing pump and the water source, the branch pipeline communicates the mixing pipeline with the outlet of the mixer, the ores from the bin pass through the mixer to enter the mixing pipeline to mix with water to form ore slurry, the outlet of the mixing pump is connected with a conveying pipeline, the end of the conveying pipeline is connected with a frame body, a control system is electrically connected with a driving mechanism and a positioning system on the frame body, and the feeder and the mixing pump on the ship body, accurate prefabrication of the mining area is realized, the uniformity of the distribution of the ores meets the requirements, the actual situation of the deep sea mining area is approached, the deep sea mining area can be simulated with high quality, the reliability of the deep sea mining system can be efficiently verified, the test time of the deep sea mining system in shallow sea test is shortened, and the determination of the test is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of deep-sea mining, and in particular to a mining area prefabrication system and method for deep-sea mining test. BACKGROUND

[0002] The ocean, which accounts for 71% of the earth's area, contains extremely rich mineral resources.

[0003] The basic function of a deep-sea mining system is to collect mineral resources such as polymetallic nodules on the seabed and transport them to the sea surface and then to the port shore. At present, certain research has been carried out on deep-sea mining system equipment at home and abroad. A large amount of theoretical analysis and experimental research has been carried out on the three major mineral species of manganese nodules, polymetallic sulfides, and cobalt-rich crusts. System equipment has been developed for different types of minerals. Deep-sea polymetallic nodules have great potential and are rich in cobalt, nickel, copper, and manganese, which are urgently needed for new energy technology. They are the preferred target for the development of deep-sea mineral resources. Polymetallic nodules are generally spherical or ellipsoidal in shape, with a particle size of 20-100 mm and a density of about 2100 kg / m3. They are in a semi-buried state on the surface of the seabed sediments and are found in the seabed at a depth of 4500-6000 m.

[0004] Before the deep-sea mining equipment realizes deep-sea in-situ mining, multiple stages of shallow-sea tests are carried out to gradually increase the depth to verify the reliability of the system. However, there are no metal nodules in the shallow-sea seabed, so the research team can only throw simulated nodules directly on the ship in the test sea area according to the current situation. This prefabrication method has the problem that the simulated nodules fall far from the seabed, are greatly affected by the current during the falling process, and have inaccurate landing points. The prefabricated mining area is discontinuous, and the uniformity of the simulated nodule distribution is not high. After the simulated nodules are thrown, an underwater robot needs to be submerged to confirm the location of the mining area, which cannot form a high-quality simulated prefabricated mining area to efficiently verify the reliability of the deep-sea mining system, increasing the test time and uncertainty of the shallow-sea test of the deep-sea mining system. SUMMARY

[0005] The present application provides a mining area prefabrication system and method for deep-sea mining test to overcome the shortcomings of the prior art, thereby accurately prefabricating the mining area, ensuring that the uniformity of the ore distribution meets the requirements, and approximating the actual situation of the deep-sea mining area. The deep-sea mining system can be efficiently verified for reliability, the test time of the shallow-sea test of the deep-sea mining system can be shortened, and the certainty of the test can be improved.

[0006] The technical scheme adopted by the present application is as follows:

[0007] A mining area prefabrication system for deep-sea mining test, comprising a water surface equipment system, a conveying pipeline, and an underwater equipment system, wherein the conveying pipeline is a flexible pipe.

[0008] The water surface equipment system comprises a ship body, a stock bin for storing ores is arranged on the ship body, a feeder is arranged in the stock bin, the feeder is used for quantitatively conveying the ores in the stock bin out of the stock bin, the stock bin is communicated with the mixer,

[0009] A mixing pump is further arranged on the ship body, an inlet of the mixing pump is communicated with a water source through a mixing pipeline, a branch pipeline is arranged on the mixing pipeline between the mixing pump and the water source, the branch pipeline communicates the mixing pipeline with an outlet of the mixer, the ores from the stock bin pass through the mixer to enter the mixing pipeline to be mixed with water to form ore slurry,

[0010] An outlet of the mixing pump is connected with the conveying pipeline, the conveying pipeline is used for conveying the ore slurry;

[0011] The underwater equipment system comprises a frame body, a tail end of the conveying pipeline is connected with the frame body, a driving mechanism for driving the frame body to move and a positioning system for feeding back the position of the frame body in real time are arranged in the frame body;

[0012] A control system is further included, the control system is electrically connected with the driving mechanism, the positioning system, the feeder and the mixing pump.

[0013] Further technical solutions are as follows:

[0014] The structure of the mixer comprises a funnel-shaped shell body, a large opening of the shell body is an inlet of the mixer, a small opening of the shell body is an outlet of the mixer, and the outlet of the shell body faces downward and is communicated with the branch pipeline.

[0015] The water source is a water tank for storing water, the water tank is arranged on the ship body, and water in the water tank is seawater pumped from the sea by a water pump, and the water pump is arranged on the ship body.

[0016] Opposite sides of the frame body are symmetrically provided with reverse frames, bottom portions of the reverse frames are hinged to side surfaces of the frame body, upper portions of the reverse frames are connected with a first winch installed on the frame body through a rope, a camera and a lighting lamp are arranged on a side of each reverse frame away from the frame body, and an included angle between the reverse frame and the frame body changes after the first winch lengthens the rope.

[0017] A three-dimensional sonar is further included, and the three-dimensional sonar is used for detecting the seabed and presenting a three-dimensional form of the seabed.

[0018] A guide pipe is vertically arranged downward in a middle portion of the frame body, an upper end of the guide pipe is connected with a tail end of the conveying pipeline, and a lower end of the guide pipe is a discharge port, and the discharge port is located at a bottom portion of the frame body.

[0019] The driving mechanism comprises a first propeller for driving the frame body to move up and down and a plurality of second propellers for driving the frame body to move horizontally, the first propeller is located at the upper part of the frame body, the number of the second propellers is four, and the four second propellers are arranged in a virtual circle with the axis of the guide pipe as the center.

[0020] A mine area prefabrication method comprises the following steps:

[0021] The first step is to fill the bin with ore, and the underwater equipment system connected with the conveying pipeline is placed in the sea at a specified depth, and the conveying pipeline is released synchronously.

[0022] The second step is to place the underwater equipment system connected with the conveying pipeline into the sea at a specified depth, and the conveying pipeline is released synchronously.

[0023] The third step is to determine the starting position of the underwater equipment system by the positioning system, start the mixing pump and the feeder according to the preset ore abundance, form a certain ore content slurry in the mixing pipeline, and reach the end of the conveying pipeline along the conveying pipeline.

[0024] The fourth step is that the underwater equipment system is driven to walk by the driving mechanism according to the preset ore distribution route, the moving speed is adjusted according to the preset ore abundance, and the slurry flowing out of the end of the conveying pipeline accurately reaches the real-time distribution point.

[0025] Further technical solutions of the present application are as follows:

[0026] In the fourth step, the camera located at the lower part of the underwater equipment system feeds back the real-time ore abundance to the control system, the control system compares and calculates the real-time ore abundance with the preset ore abundance, judges the size of the preset ore abundance, and feeds back the adjustment signal to adjust the parameters of the feeder, the mixing pump and the driving mechanism.

[0027] In the fourth step, a three-dimensional sonar is further arranged at the lower part of the underwater equipment system, and the three-dimensional form of the seabed detected in real time is fed back to the control system to calibrate the pictures obtained by the camera.

[0028] The beneficial effects of the present application are as follows:

[0029] The application has the advantages of compact structure, reasonable design, convenient operation, and the like.

[0030] Meanwhile, the application has the following advantages:

[0031] (1) The camera and the illuminating lamp are arranged on the reversing frame which can change position relative to the frame body, which is convenient for real-time detection of the underwater situation and real-time detection of the seabed topography after the ore is distributed, and the control system obtains real-time ore abundance after identifying the image transmitted by the camera, compares and calculates the real-time ore abundance with the preset ore abundance, judges the size of the preset value, and feeds back an adjustment signal, which is used for parameter adjustment of the feeder, the mixing pump and the driving mechanism, so that the real-time ore abundance meets the requirements.

[0032] (2) The three-dimensional sonar is arranged to calibrate the picture obtained by the camera, and when the camera fails, the three-dimensional sonar replaces the camera to collect the seabed situation, so that the underwater equipment system can continuously work and the operation rate is improved.

[0033] (3) The guide pipe is arranged in the frame body to move the outlet of the ore slurry away from the driving mechanism, so that the ore slurry flow discharged from the pipe port is not affected by the water flow generated by the operation of the driving mechanism, the form is stable, and the ore area preparation is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a structural schematic view of the application.

[0035] Figure 2 It is Figure 1 It is a local enlarged view of A in the middle.

[0036] Figure 3 It is a structural schematic view of the water surface equipment system of the application.

[0037] Figure 4 It is a structural schematic view of the water surface equipment system of the application (another view).

[0038] Figure 5 It is a structural schematic view of the underwater equipment system of the application (the reversing frame is in a half-open state).

[0039] Figure 6This is a schematic diagram of the underwater equipment system of the present invention (the reversing frame is in a semi-open state, another view).

[0040] Figure 7 This is a schematic diagram of the underwater equipment system of the present invention (with the reversing frame fully open).

[0041] in:

[0042] 1. Surface equipment system; 10. Hull; 11. Hoses; 12. Second winch; 13. Hopper; 14. A-frame; 15. Mixing pump; 150. Mixing pipeline; 151. Branch pipeline; 16. Chute frame; 17. Mixer; 170. Conveyor; 18. Water tank; 19. Water pump;

[0043] 2. Delivery pipeline;

[0044] 3. Underwater equipment system; 30. Frame; 31. Reversing frame; 3101. Sonar; 3102. Camera; 3103. Lighting; 32. First winch; 3201. Rope; 33. First thruster; 34. Second thruster; 35. Guide tube; 3501. Paddle discharge port; 36. Power system; 37. Positioning mechanism; 38. Electronics compartment; 39. Sensors;

[0045] 4. Slurry flow. Detailed Implementation

[0046] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0047] Example 1:

[0048] like Figures 1-7 As shown, the prefabrication system for deep-sea mining experiments in this embodiment includes a surface equipment system 1, a conveying pipeline 2, and an underwater equipment system 3. The conveying pipeline 2 is a flexible hose.

[0049] The surface equipment system 1 includes a hull 10, on which a silo 13 for storing ore and a mixer 17 are provided. A feeder is provided in the silo 13 for quantitatively conveying the ore in the silo 13 out of the silo 13. The silo 13 is connected to the mixer 17. A mixing pump 15 is also provided on the hull 10.

[0050] Specifically, the ship body 10 can move on the sea surface, and its power can be derived from itself or be towed by a mother ship. The bin 13, the mixer 17, the mixing pump 15 and other equipment are arranged on the deck of the ship body 10. The deck of the ship body 10 is further provided with a hose rack 11 for accommodating the conveying pipeline 2. The feeder is a conventional material conveying device, such as a screw feeding mechanism, which has a certain conveying speed, i.e. a certain feeding amount, to ensure that the amount of ore conveyed from the bin 13 per unit time is a constant value and can be adjusted. The discharge port of the bin 13 can be directly connected to the mixer 17 or can be conveyed to the mixer 17 through a conveyor 170, which can be a belt conveyor, a screw conveyor or the like. The ore can be a metal nodule derived from the deep sea or a simulated nodule which is a stone block similar to the metal nodule derived from the deep sea in shape, hardness and other characteristics.

[0051] The inlet of the mixing pump 15 is communicated with a water source through a mixing pipeline 150. A branch pipeline 151 is arranged on the mixing pipeline 150 between the mixing pump 15 and the water source. The branch pipeline 151 communicates the mixing pipeline 150 with the outlet of the mixer 17. The ore from the bin 13 enters the mixing pipeline 150 through the mixer 17 to mix with water to form the ore slurry.

[0052] The outlet of the mixing pump 15 is connected to the conveying pipeline 2 for conveying the ore slurry. When the end of the conveying pipeline 2 is immersed in seawater, the ore slurry flow 4 is formed in the seawater. The mixing of water and ore to form ore slurry not only facilitates the conveying of ore, but also facilitates the introduction of ore to the seabed through the pump and pipeline, avoids the influence of ocean current on the ore during the falling process, and replaces manual operation to reduce labor intensity.

[0053] Specifically, the water source can be seawater directly or water from the water tank 18 on the ship body 10. A certain flow of water in the mixing pipeline 150 carries a certain amount of ore from the branch pipeline 151 into the water flow to form the ore slurry, which has a stable ore content. The mixer 17 is used to receive the ore from the bin 13 and introduce the ore into the mixing pipeline 150 through the branch pipeline 151. The mixing pump 15, the mixing pipeline 150, the branch pipeline 151 and the mixer 17 are combined to form an ore slurry making device, which has a simple structure and is easy to operate.

[0054] The underwater equipment system 3 includes a frame body 30, the end of the conveying pipeline 2 is connected to the frame body 30, the frame body 30 is internally provided with a driving mechanism for driving the frame body 30 to move and a positioning system for feeding back the position of the frame body 30 in real time. The control system is electrically connected with the driving mechanism, the positioning system, the feeder and the mixing pump 15.

[0055] Specifically, to ensure the overall size of the underwater equipment system 3 is small, the drive mechanism is located inside the frame 30. The drive mechanism moves the frame 30 by means of vertical movement, horizontal movement, or a combination of both in seawater. The positioning system may include a positioning mechanism 37 installed on the frame 30, such as an inertial navigation system for underwater positioning, and may also include sensors 39 for monitoring the position of the underwater equipment system 3, such as altimeters and depth gauges. The control system includes a host computer located on the water and a slave computer located underwater. In this embodiment, the slave computer is an electronic cabin 38 installed on the frame 30, which is used to control all equipment on the underwater equipment system 3. Cables and signal cables are provided along the conveying pipeline 2 for power supply and control of the underwater equipment system 3. The control system presets the ore abundance of the mining area, and adjusts the ore content of the slurry by controlling the conveying speed of the feeder on the surface equipment system 1 and the flow rate of the mixing pump 15. Furthermore, it combines the moving speed and position of the underwater equipment system 3 to prefabricate the mining area according to the preset ore abundance.

[0056] When a prefabricated mining area is required in a designated sea area:

[0057] First, the underwater equipment system 3, which is deployed in the designated sea area, is submerged to a certain depth from the seabed. This depth is used to ensure that the position where the slurry flow 4 falls into the seabed is less affected by the seawater flow.

[0058] Then, after the underwater equipment system 3 reaches the starting position of the ore laying, the underwater equipment system 3 drives the end of the conveying pipeline 2 to travel along the predetermined ore laying route under the drive mechanism. At the same time, the slurry formed by the surface equipment system 1 is transported by the conveying pipeline 2 and forms a slurry flow 4 at the end of the conveying pipeline 2.

[0059] As the underwater equipment system 3 moves, the slurry flow 4 falls to different locations on the seabed, forming a prefabricated mining area on the seabed.

[0060] like Figures 1-4 As shown, a second winch 12 is installed on the hull 10 to change the length of the delivery pipeline 2. The second winch 12 is provided to facilitate the simultaneous deployment of the delivery pipeline 2 when deploying the underwater equipment system 3. At the same time, the second winch 12 can also be used to change the length of the delivery pipeline 2 to facilitate the operation of the underwater equipment system 3. In addition, the A-frame 14 on the hull 10 is used to deploy the underwater equipment system 3 and also to assist in the deployment of the delivery pipeline 2. When the delivery pipeline 2 is deployed, the chute 16 located on the hull 10 is used to assist in supporting the vertically sliding delivery pipeline 2.

[0061] The conveying pipeline 2 is equipped with buoyancy material along its length, which can generate upward buoyancy to reduce the weight of the pipeline in the water.

[0062] The ore slurry with certain flow rate and ore content is made by using ore and water on the water surface equipment system 1, and the ore slurry is transported to the underwater equipment system 3 through the conveying pipeline 2, the underwater equipment system 3 drives the ore slurry to form a prefabricated mining area in a designated seabed area, thereby realizing accurate prefabrication of the mining area, ensuring that the uniformity of the ore distribution meets the requirements, making the prefabricated mining area close to the actual situation of the deep sea mining area, and facilitating high-quality simulation of the deep sea mining area, efficient verification of the reliability of the deep sea mining system, shortening of the test time of the deep sea mining system in the shallow sea, and improvement of the certainty of the test.

[0063] Further, as shown in Figures 3-4 The structure of the mixer 17 is that: a funnel-shaped shell body is included, the large opening of the shell body is the inlet of the mixer 17, the small opening of the shell body is the outlet of the mixer 17, and the outlet of the shell body faces downward and communicates with the branch pipeline 151.

[0064] The funnel-shaped shell body is convenient for receiving solid ore, guiding the ore into the branch pipeline 151, and has a simple structure and low manufacturing cost.

[0065] Further, as shown in Figures 3-4 The water source is a water tank 18 for storing water, the water tank 18 is arranged on the ship body 10, the water in the water tank 18 is seawater pumped from the sea by a water pump 19, and the water pump 19 is arranged on the ship body 10.

[0066] The water tank 18 is arranged, and seawater is pumped from the sea to the water tank 18 by the water pump 19, the mixing pipeline 150 is communicated with the water source, the mixing pipeline 150 can be filled with water before the mixing pump 15 is started, liquid sealing is formed in the mixing pump 15 before it is started, and seawater is continuously pumped into the mixing pipeline 150 by the water pump 19 with a flow rate matched with the mixing pump 15 after the mixing pump 15 is started.

[0067] Embodiment two:

[0068] In order to more accurately and quickly realize the prefabrication of the mining area, the mining area prefabrication system of embodiment one is further improved:

[0069] As shown in Figures 5-7 The frame body 30 is symmetrically provided with reverse frames 31 on both sides, the bottom of the reverse frame 31 is hinged to the side bottom of the frame body 30, the upper part of the reverse frame 31 is connected with a first winch 32 arranged on the frame body 30 through a rope 3201, a camera 3102 and a light 3103 are arranged on the side of the reverse frame 31 away from the frame body 30, and the angle between the reverse frame 31 and the frame body 30 is changed after the first winch 32 lengthens the rope 3201.

[0070] Specifically, the reverse frame 31 is a position where the camera 3102 and the illuminating lamp 3103 are installed, the camera 3102 and the illuminating lamp 3103 are used for shooting and illuminating, and the camera 3102 is connected with the control system;

[0071] When the underwater equipment system 3 is laid from the A frame 14, the reverse frame 31 is only pasted on both sides of the frame body 30 by the first winch 32 pulling the rope 3201, so that the overall volume of the underwater equipment system 3 is minimized at this time, facilitating the laying operation;

[0072] When the underwater equipment system 3 is laid into a larger space underwater, the reverse frame 31 can be opened by the first winch 32 lengthening the rope 3201, so that the reverse frame 31 is in a semi-open state as shown in Figure 5 and Figure 6 or Figure 7 a fully open state, or the reverse frame 31 can be continuously changed from the state of being pasted on both sides of the frame body 30 to the fully open state, for expanding and changing the range of action of the camera 3102 and the illuminating lamp 3103, facilitating the underwater equipment system 3 to confirm the situation of the sea area;

[0073] When the underwater equipment system 3 is laid in the seabed position, the reverse frame 31 is in the fully open state, the two reverse frames 31 are flush with the bottom of the frame body 30, so that the camera 3102 and the illuminating lamp 3103 face the seabed, facilitating the underwater equipment system 3 to confirm the seabed situation and the seabed situation after laying, such as the topography; and the camera 3102 and the illuminating lamp 3103 are installed away from the position where the reverse frame 31 is hinged to the frame body 30, so that the camera 3102 and the illuminating lamp 3103 are away from the driving mechanism, reducing the influence of the vibration of the driving mechanism when working, and reducing the influence of the water flow generated by the driving mechanism.

[0074] The camera 3102 and the illuminating lamp 3103 arranged on the reverse frame 31 which can change position relative to the frame body 30 not only facilitate real-time detection of the underwater situation, but also facilitate real-time detection of the seabed topography after laying, and the control system obtains real-time ore abundance after recognizing the image transmitted by the camera 3102, compares and calculates the real-time ore abundance with the preset ore abundance, judges the size of the preset value, and feeds back an adjustment signal, which is used for parameter adjustment of the feeder, the mixing pump 15 and the driving mechanism, so that the real-time ore abundance meets the requirements.

[0075] Further, as shown in Figures 5-7 , it further comprises a three-dimensional sonar 3101, which is used for detecting the seabed and presenting the three-dimensional form of the seabed.

[0076] Specifically, the three-dimensional sonar 3101 can be installed at the bottom of the frame body 30, or at the middle of the reverse frame 31. When the reverse frame 31 is in the fully open state, the three-dimensional sonar 3101 is directly opposite the seabed.

[0077] The three-dimensional sonar 3101 is arranged to calibrate the pictures obtained by the camera 3102, and when the camera 3102 fails, the three-dimensional sonar 3101 replaces the camera 3102 to collect seabed conditions, ensuring that the underwater equipment system 3 can work continuously and improve the operation rate.

[0078] Further, Figure 2 , as Figures 5-7 shown, the middle of the frame body 30 is vertically downwardly provided with a guide pipe 35, the upper end of the guide pipe 35 is connected with the end of the conveying pipeline 2, and the lower end of the guide pipe 35 is a discharge port 3501, which is located at the bottom of the frame body 30.

[0079] The guide pipe 35 is arranged in the frame body 30, which is used to move the outlet of the ore pulp away from the driving mechanism, so that the ore pulp flow 4 discharged from the pipe port is not affected by the water flow generated by the operation of the driving mechanism, the shape is stable, and the ore area precast is more accurate.

[0080] The discharge port 3501 is a horn structure, and the large opening of the discharge port 3501 is outward. The horn structure reduces the resistance loss when the ore pulp is discharged, and at the same time makes the starting end of the formed ore pulp flow 4 smoothly transition, ensures that the directivity of the ore pulp flow 4 is good, and further ensures that the abundance of the ore area precast is controllable.

[0081] Further, as Figures 4-6 shown, the driving mechanism includes a first propeller 33 for driving the frame body 30 to move up and down, and a plurality of second propellers 34 for driving the frame body 30 to move horizontally. The first propeller 33 is located at the upper part of the frame body 30, and the number of the second propellers 34 is four, which are evenly distributed around the axis of the guide pipe 35. The axis of each second propeller 34 is consistent with the tangent direction of the virtual circle formed by the connection lines of the four second propellers 34.

[0082] Specifically, the power equipment on the underwater equipment system 3 can be directly driven by the power provided by the cable, or can be driven by the power system 36 arranged on the frame body 30. The power system 36 can be a hydraulic system, which includes a hydraulic motor, a hydraulic pump, a valve box, an oil tank and the like. The number of the first propeller 33 is multiple, which is symmetrically installed on the upper part of the frame body 30 with respect to the guide pipe 35. The four second propellers 34 can control the moving position of the frame body 30, and then carry the end position of the conveying pipeline 2 to move. The four second propellers 34 move the conveying pipeline 2 forward, backward, left and right, which can also prevent the underwater equipment system 3 from rotating with the water flow, and avoid twisting the conveying pipeline 2 or the cable.

[0083] Example 3:

[0084] like Figure 1 As shown, the prefabrication method for deep-sea mining experiments in this embodiment includes the following steps:

[0085] Step 1: Fill the silo 13 with ore, and at the same time, the surface equipment system 1 arrives at the designated working position;

[0086] Step 2: Deploy the underwater equipment system 3, which is connected to the delivery pipeline 2, into the sea at a set depth, while the delivery pipeline 2 is released simultaneously.

[0087] Step 3: Determine the starting position of the underwater equipment system 3 through the positioning system, start the mixing pump 15 and the feeder according to the preset ore abundance, form a slurry with a certain ore content in the mixing pipeline 150, and reach the end of the conveying pipeline 2 along the conveying pipeline 2.

[0088] Step 4: The underwater equipment system 3 is driven by the drive mechanism to move along the predetermined ore placement route. The moving speed is adjusted according to the preset ore abundance so that the slurry flow 4 flowing out of the end of the conveying pipeline 2 can accurately reach the real-time placement point.

[0089] By preparing a slurry with a certain flow rate and ore content using ore and water on the surface equipment system 1, and then transporting the slurry to the underwater equipment system 3 through the delivery pipeline 2, the underwater equipment system 3 drives the slurry to form a prefabricated mining area in a designated seabed area. This achieves accurate prefabrication of the mining area, ensures that the uniformity of ore distribution meets the requirements, and makes the prefabricated mining area closely resemble the actual situation of deep-sea mining areas. This reduces labor intensity and shortens the test time of shallow-sea sea trials of deep-sea mining systems. It can simulate deep-sea mining areas with high quality, facilitates efficient verification of the reliability of deep-sea mining systems, and improves the certainty of the test.

[0090] Example 4:

[0091] Step 1: Fill the silo 13 with ore, and at the same time, the surface equipment system 1 arrives at the designated working position;

[0092] Step 2: Deploy the underwater equipment system 3, which is connected to the delivery pipeline 2, into the sea at a set depth, while the delivery pipeline 2 is released simultaneously.

[0093] Step 3: Determine the starting position of the underwater equipment system 3 through the positioning system, start the mixing pump 15 and the feeder according to the preset ore abundance, form a slurry with a certain ore content in the mixing pipeline 150, and reach the end of the conveying pipeline 2 along the conveying pipeline 2.

[0094] Fourth step: the underwater equipment system 3 is driven by the driving mechanism to walk according to the established ore distribution route, the moving speed is adjusted according to the preset ore abundance, so that the ore pulp flow 4 flowing out of the tail end of the conveying pipeline 2 accurately reaches the real-time distribution point; during the process, the camera 3102 located at the lower part of the underwater equipment system 3 feeds back the real-time ore abundance to the control system, the control system compares and calculates the real-time ore abundance with the preset ore abundance, judges the size of the real-time ore abundance and the preset ore abundance, and feeds back the adjustment signal after the judgment, which is used for parameter adjustment of the feeder, the mixing pump 15 and the driving mechanism.

[0095] Specifically, the parameter adjustment includes adjustment of the control system on the ore feeding amount of the feeder, the flow of the mixing pump 15 and the walking speed of the underwater equipment system 3, so that the real-time ore abundance meets the requirements.

[0096] Further, the lower part of the underwater equipment system 3 is also provided with a three-dimensional sonar 3101, which feeds back the real-time detected three-dimensional form of the seabed to the control system, and is used for calibrating the picture obtained by the camera 3102.

[0097] The three-dimensional sonar 3101 is arranged to calibrate the picture obtained by the camera 3102, so as to ensure the accuracy of the real-time ore abundance feedback by the camera 3102, or when the camera 3102 fails, the three-dimensional sonar 3101 replaces the camera 3102 to collect the seabed condition, so that the underwater equipment system 3 can continuously work and the operation rate is improved.

[0098] The above description is an explanation of the application, not a limitation of the application, the scope of the application is defined in the claims, within the protection scope of the application, any form of modification can be made.

Claims

1. A mine site pre-fabrication system for deep sea mining trials, characterised in that: The system comprises a water surface equipment system (1), a conveying pipeline (2) and an underwater equipment system (3), wherein the conveying pipeline (2) is a hose; The water surface equipment system (1) comprises a ship body (10), a stock bin (13) for storing ores and a mixer (17) are arranged on the ship body (10), a feeder is arranged in the stock bin (13), the feeder is used for quantitatively conveying ores in the stock bin (13) out of the stock bin (13), the stock bin (13) is communicated with the mixer (17), A mixing pump (15) is further arranged on the ship body (10), an inlet of the mixing pump (15) is communicated with a water source through a mixing pipeline (150), a branch pipeline (151) is arranged on the mixing pipeline (150) between the mixing pump (15) and the water source, the branch pipeline (151) communicates the mixing pipeline (150) with an outlet of the mixer (17), ores from the stock bin (13) pass through the mixer (17) to enter the mixing pipeline (150) to be mixed with water to form ore slurry, An outlet of the mixing pump (15) is connected with the conveying pipeline (2), and the conveying pipeline (2) is used for conveying ore slurry; The underwater equipment system (3) comprises a frame body (30), a terminal end of the conveying pipeline (2) is connected with the frame body (30), a driving mechanism for driving the frame body (30) to move and a positioning system for feeding back a position of the frame body (30) in real time are arranged in the frame body (30); A control system is further arranged, and the control system is electrically connected with the driving mechanism, the positioning system, the feeder and the mixing pump (15).

2. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 1, characterised in that: The mixer (17) comprises a funnel-shaped shell body, a large opening of the shell body is an inlet of the mixer (17), a small opening of the shell body is an outlet of the mixer (17), and the outlet of the shell body faces downward and is communicated with the branch pipeline (151).

3. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 1, characterised in that: The water source is a water tank (18) for storing water, the water tank (18) is arranged on the ship body (10), and water in the water tank (18) is seawater pumped from the sea through a water pump (19), and the water pump (19) is arranged on the ship body (10).

4. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 1, characterised in that: Opposite sides of the frame body (30) are symmetrically provided with reverse frames (31), bottom portions of the reverse frames (31) are hinged to side surfaces of the frame body (30), upper portions of the reverse frames (31) are connected with a first winch (32) arranged on the frame body (30) through a rope (3201), a camera (3102) and a lighting lamp (3103) are arranged on a side of each reverse frame (31) away from the frame body (30), and an included angle between the reverse frame (31) and the frame body (30) changes after the first winch (32) lengthens the rope (3201).

5. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 4, characterised in that: A three-dimensional sonar (3101) is further arranged, and the three-dimensional sonar (3101) is used for detecting a seabed and presenting a three-dimensional form of the seabed.

6. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 1, characterised in that: The middle part of the frame body (30) is vertically downwardly provided with a guide pipe (35), the upper end of the guide pipe (35) is connected with the end of the conveying pipeline (2), and the lower end of the guide pipe (35) is a discharge port (3501) located at the bottom of the frame body (30).

7. A pre-fabricated system for a mining site for deep sea mining trials as claimed in claim 6, characterised in that: The driving mechanism comprises a first propeller (33) for driving the frame body (30) to move up and down and a plurality of second propellers (34) for driving the frame body (30) to move horizontally, the first propeller (33) is located at the upper part of the frame body (30), the number of the second propellers (34) is four, the second propellers (34) are evenly distributed in an array with the axis of the guide pipe (35) as the center, and the axis of each second propeller (34) is consistent with the tangent direction of the virtual circle formed by the connecting lines of the four second propellers (34).

8. A method for prepping a mining site for deep sea mining trials using the mining site prepping system of claim 1, characterized by: The method comprises the following steps: Step 1: fill the stock bin (13) with ore, and at the same time, the water surface equipment system (1) reaches the designated operation position; Step 2: deploy the underwater equipment system (3) connected with the conveying pipeline (2) into the sea at a set depth, and at the same time, the conveying pipeline (2) is released synchronously; Step 3: determine the starting position of the underwater equipment system (3) through the positioning system, start the mixing pump (15) and the feeder according to the preset ore abundance, form ore slurry with a certain ore content in the mixing pipeline (150), and reach the end of the conveying pipeline (2) along the conveying pipeline (2); Step 4: the underwater equipment system (3) is driven to walk by the driving mechanism according to the predetermined ore distribution route, the moving speed is adjusted according to the preset ore abundance, so that the ore slurry flow (4) flowing out of the end of the conveying pipeline (2) accurately reaches the real-time distribution point.

9. The mining site preconstruction method for a mining site preconstruction system for deep sea mining trials of claim 8, characterized in that: In step 4: the camera (3102) located at the lower part of the underwater equipment system (3) feeds back the real-time ore abundance to the control system, the control system compares and calculates the real-time ore abundance with the preset ore abundance, judges the size of the real-time ore abundance and the preset ore abundance, and feeds back an adjustment signal after the judgment, which is used for parameter adjustment of the feeder, the mixing pump (15) and the driving mechanism.

10. The mining site preconstruction method for a mining site preconstruction system for deep sea mining trials of claim 9, characterized in that: In step 4: the three-dimensional sonar (3101) is further arranged at the lower part of the underwater equipment system (3), and the three-dimensional form of the seabed detected in real time is fed back to the control system, so as to calibrate the pictures obtained by the camera (3102).

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