A centrifugal deep-sea rare earth mining vehicle, a deep-sea rare earth mining system and a mining method

Abstract

The present invention discloses a centrifugal deep-sea rare earth mining vehicle, a deep-sea rare earth mining system and a mining method, wherein the centrifugal deep-sea rare earth mining vehicle comprises a mining vehicle body, the mining vehicle body is provided with a centrifugal collection mechanism, the centrifugal collection mechanism comprises a first annular flow channel and a first driving mechanism, and the first driving mechanism is connected to the first annular flow channel. The centrifugal deep-sea rare earth mining vehicle of the present invention adopts a centrifugal collection mechanism to collect deep-sea rare earths, and uses the first annular flow channel to form a negative pressure, so that deep-sea rare earths and seawater will be attracted upward and collected, and deep-sea rare earth slurry can be collected efficiently, and the collection efficiency is improved. This collection method is particularly suitable for the collection of deep-sea rare earths, and overcomes the defect that traditional mining vehicles cannot be used for deep-sea rare earth collection, which is conducive to the development of the deep-sea rare earth collection industry.

Description

Technical Field

[0001] The present invention belongs to the technical field of deep-sea mineral mining, and in particular relates to a deep-sea mining vehicle and a mining method. Background Art

[0002] The deep seabed is the largest untapped treasure trove of mineral resources on Earth. So far, the deep-sea mineral resources with economic value that have been discovered mainly include: polymetallic nodules containing nickel, copper, cobalt and manganese, cobalt crusts rich in cobalt, nickel, copper and manganese, seabed polymetallic sulfide deposits rich in copper, lead, zinc, gold and silver, and deep-sea rare earth-rich sediments with high rare earth element content (referred to as deep-sea rare earths). Deep-sea rare earths are widely distributed in the Western Pacific, Eastern Pacific, Southeast Pacific, Indian Ocean and other regions. Deep-sea rare earth resources are an important material basis for future human development, and the development of deep-sea resources is an inevitable choice for the future.

[0003] At present, the mining of mineral resources on the deep seabed is mostly focused on the mining of metal nodules and other solid ores. Most mining devices add a water spray head at the ore collection head to produce a swirl effect, thereby increasing the suction force to improve the collection efficiency. This type of mining device is not suitable for the mining of deep-sea rare earths, because the existence form of deep-sea rare earths is different from that of traditional metal nodules. Deep-sea rare earths do not exist in the form of solid ores, but in the form of mud. When using traditional mining devices to collect deep-sea rare earths, the water spray head will disperse and wash away the deep-sea rare earth mud, making it difficult to collect deep-sea rare earths efficiently. In addition, traditional mining devices walking on the seabed have problems of large driving resistance and high energy consumption. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology and provide a centrifugal deep-sea rare earth collection mining vehicle, a deep-sea rare earth collection system and a mining method with low power consumption and high deep-sea rare earth collection efficiency.

[0005] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0006] A centrifugal deep-sea rare earth mining vehicle comprises a mining vehicle body, wherein the deep-sea rare earth exists in the form of mud, and the mining vehicle body is provided with a centrifugal collection mechanism for deep-sea rare earth collection, wherein the centrifugal collection mechanism comprises a first annular flow channel and a first driving mechanism for sucking seawater into the first annular flow channel and spraying seawater from the inner circle of the first annular flow channel to form negative pressure in the inner circle of the first annular flow channel, wherein the first driving mechanism is connected to the first annular flow channel.

[0007] Deep-sea rare earths are different from traditional seabed ores. Deep-sea rare earths exist in the form of mud. Traditional mining vehicles are not suitable for this type of deep-sea rare earth collection. In the present invention, in view of the characteristics of deep-sea rare earths, a centrifugal collection mechanism is used to collect deep-sea rare earth mud. The main working principle is as follows: when the centrifugal collection mechanism is adjusted to a suitable height, its opening faces downward, and the first driving mechanism is turned on. The first driving mechanism pressurizes the seawater so that the seawater enters the first annular flow channel in a high-pressure state. The inner circle of the first annular flow channel is provided with a seawater outlet with an opening facing upward (when the centrifugal collection mechanism opens downward), and the seawater is ejected upward at a high speed from the seawater outlet. According to the Bernoulli principle, the greater the flow rate, the smaller the pressure. Therefore, a negative pressure zone will be formed at the inner circle of the first annular flow channel. The mixture of deep-sea rare earths and seawater can only flow in, not out, and the deep-sea rare earths and seawater will be sucked into the rare earth storage bin. During the suction process, the deep-sea rare earths and seawater are fully mixed, which reduces the viscosity of the seawater and facilitates subsequent transportation. The two sides of the inner ring opening of the first annular flow channel are equivalent to the outlet and the inlet of the centrifugal collection mechanism. The structural form of the first driving mechanism is not limited, for example, it includes a water pump and an impeller.

[0008] In the above centrifugal deep-sea rare earth mining vehicle, preferably, the centrifugal collection mechanism is connected to the mining vehicle body through a flow resistance adjustment device for adjusting its position to change the direction of the first annular flow channel. When the mining vehicle body is collecting deep-sea rare earths, the flow resistance adjustment device sets the first annular flow channel downward. When the mining vehicle body is walking in the water, the flow resistance adjustment device sets the first annular flow channel toward the direction of travel of the mining vehicle body. The centrifugal collection mechanism is connected to the mining vehicle body through a flow resistance adjustment device for changing the direction of the first annular flow channel. The position of the centrifugal collection mechanism can be flexibly adjusted according to the working state of the mining vehicle, thereby optimizing its performance, improving collection efficiency, and reducing energy consumption. Specifically, when collecting deep-sea rare earths, adjusting the first annular flow channel to face downward is conducive to directly sucking sediments containing rare earths from the seabed and improving the collection efficiency of deep-sea rare earths; and when the mining vehicle is moving, adjusting the first annular flow channel to be consistent with the direction of travel of the mining vehicle body, the negative pressure formed at the entrance of the first annular flow channel is conducive to offsetting the running resistance of the water flow during the driving of the mining vehicle, reducing the impact of the headwind resistance on the forward movement of the mining vehicle, ensuring that it can operate stably under complex sea conditions, reducing equipment damage caused by vibration and impact, improving collection efficiency, reducing power consumption, and improving energy utilization efficiency. The specific structural form of the above-mentioned headwind resistance adjustment device is not limited, for example, components such as hydraulic drive cylinders suitable for deep-sea environments can be used.

[0009] In the above centrifugal deep-sea rare earth mining vehicle, preferably, a rare earth storage bin for storing deep-sea rare earths is provided on the mining vehicle body, and the centrifugal collection mechanism is connected to the rare earth storage bin through a conveying pipeline, and one end of the conveying pipeline close to the centrifugal collection mechanism is a direction-adjustable hose. The centrifugal collection mechanism is directly connected to the rare earth storage bin through the conveying pipeline, which can realize continuous collection and storage and improve the operation efficiency; the hose allows the conveying pipeline to adjust the direction under different operating conditions to adapt to the seabed terrain and operation requirements.

[0010] In the above centrifugal deep-sea rare earth mining vehicle, preferably, one end of the conveying pipeline close to the rare earth storage bin is provided with a branch pipeline through a first three-way valve. When the mining vehicle body is collecting deep-sea rare earths, the first three-way valve controls the branch pipeline to be closed and the channel between the conveying pipeline and the rare earth storage bin is connected, so that the collected deep-sea rare earths can smoothly enter the rare earth storage bin. When the mining vehicle body is walking in the water, the first three-way valve controls the branch pipeline to be opened and the channel between the conveying pipeline and the rare earth storage bin is closed, so that the seawater sucked in by the centrifugal collection mechanism is discharged through the branch pipeline. Through the regulation of the first three-way valve, the connection state between the conveying pipeline and the rare earth storage bin can be flexibly switched according to the working state (collection or walking) of the mining vehicle, ensuring that the deep-sea rare earth can enter the rare earth storage bin through the conveying pipeline during collection, avoiding excessive seawater from entering the rare earth storage bin through the conveying pipeline when the mining vehicle is walking, and improving the utilization rate of the rare earth storage bin. The above first three-way valve can adopt existing conventional equipment.

[0011] In the above-mentioned centrifugal deep-sea rare earth mining mining vehicle, preferably, a stirring device is provided in the rare earth storage bin, a mud concentration detection device is provided in the rare earth storage bin, the outlet of the branch pipeline is branched into a first branch and a second branch through a second three-way valve, the first branch is connected to the rare earth storage bin, the second branch is horizontally arranged, and the outlet is facing the opposite direction of the moving direction of the mining vehicle body; when the mining vehicle body is moving in the water, the second three-way valve controls the opening and closing of the first branch and the second branch according to the detection information of the mud concentration detection device, when the mud concentration detection device detects that the mud concentration in the rare earth storage bin is higher than the set threshold, the first branch is opened (the second branch can be opened or closed), and when the mud concentration detection device detects that the mud concentration in the rare earth storage bin is not higher than the set threshold, the first branch is closed and the second branch is opened. A stirring device is provided in the rare earth storage bin to ensure uniform mixing of the rare earth mud in the rare earth storage bin, to avoid deposition or uneven distribution of rare earth elements, and to affect subsequent deep-sea rare earth pumping work; a mud concentration detection device is provided in the rare earth storage bin to detect the concentration of the mud in the rare earth storage bin in real time; the second three-way valve can control the opening and closing of the first branch and the second branch according to the detection information of the mud concentration detection device. Specifically, when the detected concentration of the mud is higher than the set threshold, the concentration of the mud in the rare earth storage bin is too high to meet the pumping requirements, and it is impossible to well Rare earths are delivered to the mining ship on the sea surface through a pumping device, and the second three-way valve controls the first branch to open (the second branch to open or close) to deliver seawater to the rare earth storage bin, reducing the mud concentration in the rare earth storage bin to facilitate the delivery of the pumping device; when the mud concentration in the rare earth storage bin is not higher than the set threshold, the concentration of the mud in the rare earth storage bin meets the pumping requirements, and the second three-way valve controls the first branch to close and the second branch to open, and controls the seawater in the delivery pipeline to be discharged horizontally, and the discharge direction is opposite to the travel direction, which is also conducive to the forward movement of the mining car. The above-mentioned setting structure is simple, can adjust the mud concentration in the rare earth storage bin, prevent rare earth deposition or uneven distribution, and is more conducive to the subsequent pumping of rare earths. The above-mentioned threshold can be adjusted according to the requirements of the pumping device for mud concentration, and while meeting the requirements of the pumping device, the amount of rare earth stored in the rare earth storage bin is maximized. The above-mentioned mud concentration detection device and the second three-way valve can adopt existing conventional equipment, and the two signals are interlocked. The above-mentioned pumping device and stirring device can also adopt existing conventional equipment.

[0012] In the present invention, the concentration of the slurry in the rare earth storage bin can be flexibly adjusted through the branch pipeline, and the driving resistance of the mining vehicle can be reduced. When adjusting the concentration of the slurry in the rare earth storage bin, the subsequent fluid acceleration mechanism can be coordinated to adjust. If the concentration of the slurry in the rare earth storage bin is low, the subsequent fluid acceleration mechanism can be disabled to avoid inhaling too much seawater.

[0013] In the above centrifugal deep-sea rare earth mining vehicle, preferably, the conveying pipeline is also provided with a fluid acceleration mechanism for increasing the flow rate of the fluid in the conveying pipeline, the fluid acceleration mechanism includes a second annular flow channel and a second driving mechanism for sucking seawater into the second annular flow channel and ejecting seawater from the inner circle of the second annular flow channel to form a negative pressure in the inner circle of the second annular flow channel, and the second driving mechanism is connected to the second annular flow channel. The structural form of the above fluid acceleration mechanism can be the same as that of the centrifugal collection mechanism, and the working principle is to form a negative pressure in the inner circle of the annular flow channel to promote the accelerated forward movement of the fluid in the conveying pipeline. Using the second annular flow channel and the second driving mechanism to suck and eject seawater to form a negative pressure can optimize the fluid dynamics performance, increase the flow rate of the rare earth mixture in the pipeline, enhance the rare earth collection efficiency, and reduce the energy loss during the transportation process, thereby improving the working efficiency and economy of the entire deep-sea rare earth collection system. The installation method of the second annular flow channel is equivalent to opening an opening on the conveying pipeline, and then installing the second annular flow channel at the opening. The inner ring inlet and outlet of the second annular flow channel are respectively connected to the two sides of the opening. The inner ring of the second annular flow channel is provided with a seawater outlet opening facing the rare earth storage bin, so that the seawater in the second annular flow channel is quickly ejected to form a negative pressure. The ejection direction of the seawater outlet of the inner ring of the second annular flow channel refers to the flow direction of the fluid in the conveying pipeline, that is, from the inner ring of the second annular flow channel to the rare earth storage bin. The specific structural form of the second annular flow channel and the second drive mechanism can be similar to that of the first annular flow channel and the first drive mechanism.

[0014] In the above centrifugal deep-sea rare earth mining vehicle, preferably, a screen is provided at the inner ring entrance of the first annular flow channel. The screen can effectively screen out solid impurities with larger particle sizes other than deep-sea rare earth mud, prevent them from entering the conveying pipeline, and improve the collection efficiency and the collection purity of deep-sea rare earth.

[0015] In the above centrifugal deep-sea rare earth mining vehicle, preferably, the mining vehicle body includes a vehicle frame, a crawler travel mechanism for driving the mining vehicle to travel, and a telescopic adjustment device for adjusting the collection height of the centrifugal collection mechanism, and the vehicle frame is mounted on the crawler travel mechanism through the telescopic adjustment device. The crawler travel drive mechanism provides driving force for the mining vehicle to ensure that the mining vehicle can travel on soft and uneven deep-sea terrain; the telescopic adjustment device can adjust the collection height of the centrifugal collection mechanism according to the distribution of rare earth resources and collection requirements in different sea areas to adapt to different working environments and collection requirements, enhance the reliability of the centrifugal collection mechanism, and ensure that all ore in the forward direction of the mining vehicle can be mined.

[0016] As a general technical concept, the present invention also provides a deep-sea rare earth collection system, including a mining ship, a pumping device and the above-mentioned centrifugal deep-sea rare earth collection mining car, wherein the mining ship is connected to the centrifugal deep-sea rare earth collection mining car through the pumping device. The pumping device can directly pump the deep-sea rare earth collected by the centrifugal rare earth collection mining car to the mining ship, playing a role of transfer, increasing the continuity of the operation and improving the collection efficiency.

[0017] As a general technical concept, the present invention also provides a method for mining deep-sea rare earth using the above-mentioned centrifugal deep-sea rare earth mining vehicle, comprising the following steps:

[0018] S1: The mining vehicle body is made to reach the designated mining area, the first annular flow channel is set downward by the flow resistance adjustment device, and the centrifugal collection mechanism is started to collect deep-sea rare earth;

[0019] S2: After the mining of the current mining area is completed, the mining vehicle body is moved to the next mining area. During the movement of the mining vehicle body, the first annular flow channel is directed toward the moving direction of the mining vehicle body by the oncoming flow resistance adjusting device to reduce the oncoming flow resistance until the next mining area is reached;

[0020] S3: Repeat steps S1-S2 to complete the mining of all mining areas.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] The centrifugal deep-sea rare earth mining vehicle of the present invention adopts a centrifugal collection mechanism to collect deep-sea rare earths, and utilizes the first annular flow channel to form negative pressure. Deep-sea rare earths and seawater will be attracted upward and collected, and deep-sea rare earth mud can be collected efficiently, thereby improving collection efficiency. This collection method is particularly suitable for the collection of deep-sea rare earths, overcoming the defect that traditional mining vehicles cannot be used for deep-sea rare earth collection, and is beneficial to the development of the deep-sea rare earth collection industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 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.

[0024] Figure 1 This is a schematic diagram of the walking structure of the centrifugal deep-sea rare earth mining vehicle in this embodiment.

[0025] Figure 2Schematic diagram of the mining structure of the centrifugal deep-sea rare earth mining vehicle in this embodiment.

[0026] Figure 3 for Figure 2 Schematic diagram of the main structure.

[0027] Figure 4 for Figure 2 Schematic diagram of the left view structure.

[0028] Figure 5 Schematic diagram of the structure of the centrifugal collection mechanism in this embodiment (the arrow in the figure indicates the direction of seawater flow).

[0029] Figure 6 It is a schematic diagram of the structure of the crawler walking mechanism and the telescopic adjustment device in this embodiment.

[0030] Legend

[0031] 1. Mining vehicle body; 11. Vehicle frame; 12. Crawler walking mechanism; 13. Telescopic adjustment device; 2. Centrifugal collection mechanism; 21. First annular flow channel; 22. First driving mechanism; 23. Headstream resistance adjustment device; 3. Rare earth storage bin; 4. Fluid acceleration mechanism; 41. Second annular flow channel; 42. Second driving mechanism; 5. Conveying pipeline; 6. Branch pipeline; 61. First branch; 62. Second branch; 7. Screen. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and meticulously below in conjunction with the accompanying drawings and preferred embodiments of the present invention, but the protection scope of the present invention is not limited to the following specific embodiments.

[0033] It should be noted that when an element is described as being "fixed, fixed, connected or connected to" another element, it can be directly fixed, fixed, connected or connected to the other element, or it can be indirectly fixed, fixed, connected or connected to the other element through other intermediate connectors.

[0034] Unless otherwise defined, all the professional terms used below have the same meanings as those generally understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0035] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0036] Example:

[0037] like Figure 1-Figure 5As shown, the centrifugal deep-sea rare earth mining vehicle of this embodiment includes a mining vehicle body 1, and the deep-sea rare earth exists in the form of mud. The mining vehicle body 1 is provided with a centrifugal collection mechanism 2 for deep-sea rare earth collection. The centrifugal collection mechanism 2 includes a first annular flow channel 21 and a first driving mechanism 22 for sucking seawater into the first annular flow channel 21 and spraying seawater from the inner circle of the first annular flow channel 21 to form a negative pressure in the inner circle of the first annular flow channel 21. The first driving mechanism 22 is connected to the first annular flow channel 21. In this embodiment, the first driving mechanism 22 may include a driving motor and a driving impeller. The blades of the driving impeller may present a complex shape in which the spacing between the blades from the center to the edge gradually increases, and the whole is a square with a side length of 0.3m; and the first annular flow channel 21 may be a circle with a radius of 1.0m. In other embodiments, the size and shape of the first annular flow channel 21 can be flexibly set according to the collection requirements.

[0038] In this embodiment, the centrifugal collection mechanism 2 is connected to the mining vehicle body 1 through a flow resistance adjustment device 23 for adjusting its position to change the direction of the first annular flow channel 21. When the mining vehicle body 1 is collecting deep-sea rare earth, the flow resistance adjustment device 23 sets the first annular flow channel 21 downward. When the mining vehicle body 1 is walking in the water, the flow resistance adjustment device 23 sets the first annular flow channel 21 toward the direction of travel of the mining vehicle body 1. The flow resistance adjustment device 23 is used to adjust the direction of the first annular flow channel 21, and is used for collecting deep-sea rare earth or reducing the walking resistance of the seawater during the driving of the mining machine. The number of the flow resistance adjustment device 23 is consistent with the number of the centrifugal collection mechanism 2. For example, in this embodiment, the number of the centrifugal collection mechanism 2 is two, so the flow resistance adjustment device 23 is also set accordingly. In other embodiments, the number of the centrifugal collection mechanism 2 can also be set to one or three, and the corresponding flow resistance adjustment device 23 can be equipped.

[0039] In this embodiment, a rare earth storage bin 3 for storing deep-sea rare earths is provided on the mining vehicle body 1, and the centrifugal collection mechanism 2 is connected to the rare earth storage bin 3 through a delivery pipe 5, and the end of the delivery pipe 5 close to the centrifugal collection mechanism 2 is a hose with adjustable direction. In this embodiment, the rare earth storage bin 3 can be 8×3×1m in length×width×height. 3 In other embodiments, rare earth storage bins 3 of other sizes may also be selected. In addition, in this embodiment, the delivery pipe 5 is made of dense plastic material. In other embodiments, PVC or silicone materials may also be used to ensure the overall sealing of the centrifugal collection device during the collection process. At the same time, a direction-adjustable hose is provided at one end of the delivery pipe 5 close to the centrifugal collection mechanism 2, which can cooperate with the flow resistance adjustment device 23 to adjust the direction of the centrifugal collection mechanism 2, so as to better collect and walk the needs of different working states.

[0040] In this embodiment, a branch pipe 6 is provided at one end of the conveying pipe 5 close to the rare earth storage bin 3 through a first three-way valve. When the mining vehicle body 1 is collecting deep-sea rare earths, the first three-way valve controls the branch pipe 6 to be closed and the passage between the conveying pipe 5 and the rare earth storage bin 3 is connected. When the mining vehicle body 1 is moving in the water, the first three-way valve controls the branch pipe 6 to be opened and the passage between the conveying pipe 5 and the rare earth storage bin 3 is closed.

[0041] In this embodiment, a stirring device is provided in the rare earth storage bin 3, and a mud concentration detection device is provided in the rare earth storage bin 3. The outlet of the branch pipe 6 is branched into a first branch 61 and a second branch 62 through a second three-way valve. The first branch 61 is connected to the rare earth storage bin 3, and the second branch 62 is horizontally arranged, and the outlet faces the opposite direction of the moving direction of the mining vehicle body 1. When the mining vehicle body 1 is moving in the water, the second three-way valve controls the opening and closing of the first branch 61 and the second branch 62 according to the detection information of the mud concentration detection device. When the mud concentration detection device detects that the mud concentration in the rare earth storage bin 3 is higher than the set threshold value, the first branch 61 is opened. When the mud concentration detection device detects that the mud concentration in the rare earth storage bin 3 is not higher than the set threshold value, the first branch 61 is closed and the second branch 62 is opened.

[0042] In this embodiment, the delivery pipeline 5 is further provided with a fluid acceleration mechanism 4 for increasing the flow rate of the fluid in the delivery pipeline 5. The fluid acceleration mechanism 4 includes a second annular flow channel 41 and a second driving mechanism 42 for sucking seawater into the second annular flow channel 41 and spraying seawater from the inner circle of the second annular flow channel 41 to form a negative pressure in the inner circle of the second annular flow channel 41. The second driving mechanism 42 is connected to the second annular flow channel 41. In this embodiment, the structures of the second annular flow channel 41 and the second driving mechanism 42 are the same as those of the first annular flow channel 21 and the first driving mechanism 22.

[0043] like Figure 5 As shown, in this embodiment, a screen 7 is provided at the inner entrance of the first annular flow channel 21. Soil impurities with larger particle sizes are excluded from the first annular flow channel 21 by the inlet screen 7.

[0044] like Figure 3 , Figure 4 and Figure 6As shown, in this embodiment, the mining vehicle body 1 includes a frame 11, a crawler travel mechanism 12 for driving the mining vehicle to travel, and a telescopic adjustment device 13 for adjusting the collection height of the centrifugal collection mechanism 2. The frame 11 is installed on the crawler travel mechanism 12 through the telescopic adjustment device 13. In this embodiment, the crawler travel mechanism 12 includes a crawler and a driving gear for driving the crawler to move. Specifically, there are two crawlers, and each crawler is equipped with two driving gears. The telescopic adjustment device 13 includes a hydraulic telescopic rod and a round table for accommodating the adjustment of the hydraulic telescopic rod. The telescopic adjustment device 13 can adjust the collection height of the centrifugal collection mechanism 2 by hydraulic adjustment, and its adjustment range is 0-0.5m. In this embodiment, six telescopic adjustment devices 13 are set. In other embodiments, the number of telescopic adjustment devices 13 can also be set to two or four.

[0045] The deep-sea rare earth collection system of this embodiment includes a mining ship, a pumping device and the above-mentioned centrifugal deep-sea rare earth collection mining vehicle, and the mining ship is connected to the centrifugal deep-sea rare earth collection mining vehicle through the pumping device.

[0046] The mining method for deep-sea rare earth mining using the centrifugal deep-sea rare earth mining vehicle of this embodiment comprises the following steps:

[0047] S1: The mining vehicle body 1 reaches the designated mining area, the first annular flow channel 21 is set downward through the upstream resistance adjustment device 23, and the centrifugal collection mechanism 2 is turned on to collect deep-sea rare earth;

[0048] S2: After the mining of the current mining area is completed, the mobile mining vehicle body 1 reaches the next mining area. During the movement of the mining vehicle body 1, the first annular flow channel 21 is directed toward the moving direction of the mining vehicle body 1 by the upstream flow resistance adjusting device 23 to reduce the upstream flow resistance until the next mining area is reached;

[0049] S3: Repeat steps S1-S2 to complete the mining of all mining areas.

[0050] In this embodiment, when the centrifugal deep-sea rare earth collection vehicle reaches the designated area, the centrifugal collection mechanism 2 is first adjusted to a suitable height by the telescopic adjustment device 13, so that the opening of the centrifugal collection mechanism 2 faces downward, and the centrifugal collection mechanism 2 can be opened to collect deep-sea rare earths. When the centrifugal collection mechanism 2 collects, the seawater is driven into the first annular flow channel 21 by the first driving mechanism 22 and ejected at high speed from the inner circle of the first annular flow channel 21. According to Bernoulli's theorem, at this time, the inner circle of the first annular flow channel 21 will form an upward negative pressure, and the deep-sea rare earths and seawater will be attracted upward, so that the efficient collection of deep-sea rare earths can be achieved; the fluid acceleration mechanism 4 can be used to better transport the collected deep-sea rare earth mixture to the rare earth storage bin 3, and the rare earth mixture in the rare earth storage bin 3 is then transported to the mining ship through a pumping device for subsequent processing.

[0051] In this embodiment, after the rare earth resources in an area are collected, the direction of the first annular flow channel 21 is adjusted by the upstream resistance adjustment device 23 to make it consistent with the forward direction of the collection vehicle, and go to the next deep-sea rare earth-enriched area. In this process, the negative pressure generated by the first annular flow channel 21 can effectively offset the running resistance of the water flow during the driving of the collection vehicle, reducing energy consumption. After arriving, repeat the above operation to continue the collection work.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A centrifugal deep-sea rare earth mining vehicle, comprising a mining vehicle body (1), characterized in that: The deep-sea rare earth exists in the form of mud. The mining vehicle body (1) is provided with a centrifugal collection mechanism (2) for collecting deep-sea rare earth. The centrifugal collection mechanism (2) comprises a first annular flow channel (21) and a first driving mechanism (22) for sucking seawater into the first annular flow channel (21) and causing the seawater to be ejected from the inner circle of the first annular flow channel (21) to form a negative pressure in the inner circle of the first annular flow channel (21). The first driving mechanism (22) is connected to the first annular flow channel (21); The centrifugal collection mechanism (2) is connected to the mining vehicle body (1) via a flow resistance adjustment device (23) for adjusting its position to change the direction of the first annular flow channel (21); when the mining vehicle body (1) is collecting deep-sea rare earths, the flow resistance adjustment device (23) causes the first annular flow channel (21) to be arranged downward; when the mining vehicle body (1) is moving in water, the flow resistance adjustment device (23) causes the first annular flow channel (21) to face the moving direction of the mining vehicle body (1).

2. The centrifugal deep-sea rare earth mining vehicle according to claim 1, characterized in that: The mining vehicle body (1) is provided with a rare earth storage bin (3) for storing deep-sea rare earths, the centrifugal collection mechanism (2) is connected to the rare earth storage bin (3) via a conveying pipe (5), and one end of the conveying pipe (5) close to the centrifugal collection mechanism (2) is a direction-adjustable hose.

3. The centrifugal deep-sea rare earth mining vehicle according to claim 2 is characterized in that: One end of the conveying pipeline (5) close to the rare earth storage bin (3) is provided with a branch pipeline (6) through a first three-way valve. When the mining vehicle body (1) is collecting deep-sea rare earths, the first three-way valve controls the branch pipeline (6) to be closed, and the passage between the conveying pipeline (5) and the rare earth storage bin (3) is connected. When the mining vehicle body (1) is moving in water, the first three-way valve controls the branch pipeline (6) to be opened, and the passage between the conveying pipeline (5) and the rare earth storage bin (3) is closed.

4. The centrifugal deep-sea rare earth mining vehicle according to claim 3 is characterized in that: The rare earth storage bin (3) is provided with a mud concentration detection device. The outlet of the branch pipeline (6) is branched into a first branch (61) and a second branch (62) through a second three-way valve. The first branch (61) is connected to the rare earth storage bin (3). The second branch (62) is arranged horizontally, and the outlet faces the direction opposite to the moving direction of the mining vehicle body (1). When the mining vehicle body (1) moves in water, the second three-way valve controls the opening and closing of the first branch (61) and the second branch (62) according to the detection information of the mud concentration detection device. When the mud concentration detection device detects that the mud concentration in the rare earth storage bin (3) is higher than a set threshold value, the first branch (61) is opened. When the mud concentration detection device detects that the mud concentration in the rare earth storage bin (3) is not higher than the set threshold value, the first branch (61) is closed and the second branch (62) is opened.

5. The centrifugal deep-sea rare earth mining vehicle according to claim 2, characterized in that: The delivery pipeline (5) is also provided with a fluid acceleration mechanism (4) for increasing the flow rate of the fluid in the delivery pipeline (5); the fluid acceleration mechanism (4) comprises a second annular flow channel (41) and a second driving mechanism (42) for sucking seawater into the second annular flow channel (41) and causing the seawater to be ejected from the inner circle of the second annular flow channel (41) to form a negative pressure in the inner circle of the second annular flow channel (41); the second driving mechanism (42) is connected to the second annular flow channel (41).

6. The centrifugal deep-sea rare earth mining vehicle according to any one of claims 1 to 5, characterized in that: A screen (7) is provided at the inner entrance of the first annular flow channel (21).

7. The centrifugal deep-sea rare earth mining vehicle according to any one of claims 1 to 5, characterized in that: The mining vehicle body (1) comprises a vehicle frame (11), a crawler walking mechanism (12) for driving the mining vehicle to walk, and a telescopic adjustment device (13) for adjusting the collection height of a centrifugal collection mechanism (2); the vehicle frame (11) is mounted on the crawler walking mechanism (12) via the telescopic adjustment device (13).

8. A deep-sea rare earth collection system, characterized in that: It comprises a mining ship, a pumping device and the centrifugal deep-sea rare earth mining vehicle according to any one of claims 1 to 7, wherein the mining ship is connected to the centrifugal deep-sea rare earth mining vehicle via the pumping device.

9. A method for deep-sea rare earth mining using the centrifugal deep-sea rare earth mining vehicle described in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: the mining vehicle body (1) is brought to a designated mining area, the first annular flow channel (21) is arranged downwards by means of the flow resistance adjustment device (23), and the centrifugal collection mechanism (2) is started to collect deep-sea rare earths; S2: After the mining of the current mining area is completed, the mining vehicle body (1) is moved to the next mining area. During the movement of the mining vehicle body (1), the first annular flow channel (21) is directed toward the moving direction of the mining vehicle body (1) by means of the oncoming flow resistance adjusting device (23) to reduce the oncoming flow resistance until the next mining area is reached; S3: Repeat steps S1-S2 to complete the mining of all mining areas.

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