Mining vehicles for deep-sea mining and mining methods using them

Abstract

This invention discloses a ore collection vehicle for deep-sea mining and a mining method using the same. The ore collection vehicle includes a collection device, a transmission device, a traveling device, and a casing. The collection device includes a collection structure with a cavity and a water inlet window, which is located on the collection structure. The transmission device includes a water pipe and a transmission component. The transmission device and the traveling device are located inside the casing, which stores sediment stirred up by the traveling device. A water inlet is provided on the casing. The transmission component is connected to the collection structure and is used to transfer the mixture stored in the cavity. The water inlet is connected to the water inlet window via the water pipe. Sediments in the casing are transferred from the water inlet, water pipe, and water inlet window to the collection structure using a negative pressure principle. This invention solves the problem of the ore collection vehicle generating a large plume during operation.

Description

Technical Field

[0001] This invention relates to the field of deep-sea mining engineering, and in particular to a ore-collecting vehicle for deep-sea mining and a mining method using the same. Background Technology

[0002] The deep sea is rich in mineral resources, especially those rich in key metals, which are crucial for modern industry, electronics, and battery manufacturing. With the risk of terrestrial mineral resources gradually depleting, the development of deep-sea resources has become an important way to meet future energy demands. However, the sediment stirred up by mining trucks during transport and collection spreads with bottom currents, forming large plumes that increase water turbidity, affecting seawater transparency and primary production processes. Sediment adhering to the surface of large organisms can clog their respiratory systems and have toxic effects on aquatic life. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing ore collection vehicles in terms of the large plume generated during travel and collection, and to provide an ore collection vehicle for deep-sea mining and a mining method using it.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0005] A ore-collecting vehicle for deep-sea mining includes a collection device, a transmission device, a traveling device, and a casing.

[0006] The collection device includes a collection structure with a cavity and a water inlet window, the water inlet window being disposed on the collection structure.

[0007] The transmission device includes a water pipe and transmission components.

[0008] The transmission device and the traveling device are located inside the casing, which is used to store sediments stirred up by the traveling device during its movement. The casing is equipped with a water inlet.

[0009] The transmission device is connected to the acquisition structure and is used to transmit the mixture stored in the cavity. The water inlet is connected to the water inlet window through the water inlet pipe.

[0010] The water is transmitted from the inlet, the pipe, and the window in the enclosure to the collection structure using the principle of negative pressure.

[0011] Preferably, the water inlets are evenly distributed on the casing.

[0012] Preferably, the acquisition structure is a rake head assembly.

[0013] Preferably, the device further includes an adjustment device for adjusting the working angle and digging depth of the rake head assembly, and the adjustment device is connected to the rake head assembly.

[0014] Preferably, the rake head assembly includes a rake head, a movable cover, a rotating shaft, and a fixed cover. The adjustment device includes a first telescopic device and a second telescopic device. The top of the movable cover and the fixed cover are connected through the first telescopic device, and the bottom of the movable cover and the fixed cover are connected through the rotating shaft. The first end of the second telescopic device is connected to the fixed cover, and the second end of the second telescopic device is connected to the traveling device.

[0015] Preferably, the rake head is also equipped with a high-pressure nozzle.

[0016] Preferably, the ore collecting car further includes a chassis platform, and the transmission device includes a transmission pipe, an underwater pump, and a storage bin.

[0017] The underwater pump and the fixed cover are connected via the transmission pipe, and the underwater pump is also connected to the storage tank via the transmission pipe.

[0018] The chassis platform is fixed to the traveling device and is used to support the underwater pump and the storage tank.

[0019] Preferably, it further includes a third telescopic device, the fixed cover and the housing are connected by the third telescopic device, the housing is connected to the collection device to form a dolphin-shaped housing, and the collection device serves as the tail of the dolphin-shaped housing.

[0020] Preferably, it further includes a sonar and camera device, a communication and positioning device, and a spiral device. The sonar and camera device is installed at the dolphin-shaped eye of the dolphin-shaped shell, the communication and positioning device is installed at the dorsal fin of the dolphin-shaped shell, and the spiral device is installed at the dolphin fins on both sides of the dolphin-shaped shell.

[0021] The mining method using the above-mentioned ore collection car includes the following steps:

[0022] The control commands control the movement of the traveling device and the collection structure to collect undisturbed soil.

[0023] The sediment in the casing is transferred to the collection structure through the water inlet, the water pipe, and the water inlet window;

[0024] The transmission device transmits the mixture stored in the cavity.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] This invention, by placing a water intake window on the collection structure, connecting the transmission device to the collection structure, and connecting the water intake port to the water intake window via a water intake pipe, allows sediment stirred up by the traveling device to be transported from the water intake port, water intake pipe, and water intake window to the collection structure through the principle of negative pressure. This mixes the undisturbed soil collected by the collection structure with the sediment in the casing, reducing sediment stirred up by the traveling device during its movement, thereby reducing the plume and its impact on water clarity, i.e., reducing the impact on water transparency. It also reduces the amount of sediment suspended in the water, thus reducing the possibility of it adhering to the surface of aquatic organisms, thereby reducing the impact on aquatic organisms and the ecological environment. On the other hand, since the volume concentration of the undisturbed soil collected by the collection structure is often too high to meet the requirements for transmission, water needs to be introduced to dilute it. The volume concentration in the casing is often much lower than that of the undisturbed soil collected by the collection structure. Therefore, by introducing the sediment in the casing into the collection structure, the impact of introducing water from seawater through the water intake window on the surrounding environment is reduced. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a mining car structure according to an embodiment of the present invention;

[0028] Figure 2 This is a three-dimensional perspective view of a mining car structure according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the rake head assembly in a mining car structure according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the track assembly in a mining truck structure according to an embodiment of the present invention;

[0031] Figure 5 This is a flowchart of a mining method using a mining truck, according to an embodiment of the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0033] like Figure 1 and Figure 2 As shown, this embodiment provides a ore-collecting vehicle for deep-sea mining, including a collection device, a transmission device, a traveling device, and a cover 1.

[0034] The collection device includes a collection structure with a cavity and a water inlet window 6, which is disposed on the collection structure. The transmission device includes a water inlet pipe 5 and transmission components.

[0035] The transmission device and the traveling device are located inside the casing 1. The casing 1 is used to store the sediment stirred up by the traveling device during its movement. The casing 1 is equipped with a water inlet 4.

[0036] The transmission device is connected to the acquisition structure and is used to transmit the mixture stored in the cavity.

[0037] Water inlet 4 is connected to water inlet window 6 via water inlet pipe 5.

[0038] The sediment in the casing 1 is transferred to the collection structure through the inlet 4, inlet pipe 5, and inlet window 6 using the principle of negative pressure. The principle of negative pressure refers to a pressure in a certain area being lower than the surrounding pressure. In this embodiment, the pressure in the cavity of the collection structure is lower than atmospheric pressure. Therefore, the sediment in the casing 1 will enter the collection structure through the inlet 4, inlet pipe 5, and inlet window 6 due to the pressure difference, diluting the undisturbed soil collected by the collection structure to a suitable volume concentration for transfer. If the volume concentration is too high, it may cause blockage of the transfer devices. During the movement of the traveling device, a certain amount of sediment will be agitated. The agitated sediment will be confined within the casing 1 because the casing 1 forms a cavity structure near the traveling device. The sediment agitated during the movement of the traveling device will be stored in this cavity structure. An inlet 4 is provided on this cavity structure to introduce the sediment into the collection structure. This cavity structure is not shown in the figure.

[0039] In this embodiment, by placing the water inlet window 6 on the collection structure, connecting the transmission device to the collection structure, and connecting the water inlet 4 to the water inlet window 6 via the water inlet pipe 5, the negative pressure principle is used to transmit the sediment stirred up by the traveling device from the water inlet 4, the water inlet pipe 5, and the water inlet window 6 to the collection structure. This allows the undisturbed soil collected by the collection structure to mix with the soil in the casing 1, reducing the sediment stirred up by the traveling device during its movement, thereby reducing the plume and the impact on the clarity of the water body, that is, reducing the impact on the light transmittance of the water body, and also reducing the suspended solids. Sediments floating in the water reduce the likelihood of adhering to the surface of organisms in the water, thereby reducing the impact on aquatic organisms and the ecological environment. On the other hand, since the volume concentration of undisturbed soil collected by the collection structure is often too high to meet the requirements for transport, water needs to be introduced to dilute it. The volume concentration in the casing 1 is often much lower than the volume concentration of undisturbed soil collected by the collection structure. Therefore, by introducing the sediments in the casing 1 into the collection structure, the impact of introducing water from seawater through the water inlet window 6 on the surrounding environment is reduced.

[0040] like Figure 1 and Figure 4 As shown, in some embodiments, the water inlets 4 are evenly distributed on the casing 1. Figure 4 The diagram does not indicate that the water inlet 4 is located on the traveling device, i.e., the track assembly 2. Rather, the diagram shows that the water inlet 4 is approximately located on the track assembly 2, but in reality, the water inlet 4 is still located on the cover 1. Water inlets 4 are evenly distributed on the track assembly 2. There are multiple water inlets 4; by using a large number of inlets 4, sediment from the casing 1 can be quickly transferred to the collection structure via the inlets 4, water pipes 5, and water windows 6. This prevents excessive sediment accumulation in the casing 1 from overflowing into the seawater and causing water pollution. The number of water pipes 5 and water windows 6 can be equal to the number of water inlets 4, with one water inlet 4 corresponding to one water pipe 5 and one water window 6, or all water inlets 4 can correspond to one water window 6 and one water pipe 5. The water pipes 5 need to be multi-headed, with each water inlet 4 corresponding to one head, and the diameter of the water pipes 5 needs to be sufficiently large. Consequently, the size of the water windows 6 also needs to match the diameter of the water pipes 5. The even distribution of these inlets prevents excessive sediment accumulation in some areas when the ore collection car is tilted, thus preventing overflow into the seawater and causing water pollution. The location and number of water inlets 4 can be determined based on the location of the suspended water and the concentration of the collected water.

[0041] like Figure 1 and Figure 2 As shown, in some embodiments, the collection structure is a rake assembly 3 located at the rear of the cover 1, and the track assembly 2 is located at the bottom of the overall structure of the ore collecting car, used to drive the ore collecting car to move on the seabed.

[0042] like Figure 1 As shown, in some embodiments, the ore collecting car also includes an adjustment device for adjusting the working angle and digging depth of the rake head assembly 3, and the adjustment device is connected to the rake head assembly 3.

[0043] like Figure 1 and Figure 3As shown, in some embodiments, the rake head assembly 3 includes a rake head 31, a movable cover 32, a rotating shaft 34, and a fixed cover 33. The adjustment device includes a first telescopic device 7 and a second telescopic device 8. The movable cover 32 and the fixed cover 33 are rotatably connected to each other. The movable cover 32 and the fixed cover 33 are connected by the first telescopic device 7, and the bottom of the connection between the two is connected by the rotating shaft 34, while the top is connected by the first telescopic device 7, so that the movable cover 32 can rotate moderately with the help of the rotating shaft 34, but the rotation angle is limited by the first telescopic device 7. The first end of the second telescopic device 8 is connected to the fixed cover 33, and the second end of the second telescopic device 8 is connected to the track assembly 2. By connecting the second telescopic device 8 to the fixed cover 33, the rake head 31 can be maintained at a certain digging depth, thereby ensuring that the surface of the undisturbed soil collected by the rake head 31 is flat. Ensuring that the surface of the undisturbed soil collected is flat has the following advantages: It can reduce environmental disturbance and reduce ecological impact: A flat seabed surface helps to reduce the destruction of marine life habitats. Irregular excavation marks may lead to the diffusion of more suspended sediments, increasing the impact on the water quality of the surrounding waters, while a flat surface can minimize this disturbance; It promotes ecological restoration: A smooth seabed makes it easier for natural processes (such as redistribution and re-establishment of organisms) to take place, which helps to accelerate the ecological restoration of the affected area; It improves the efficiency of subsequent operations and facilitates repeated operations: If it is necessary to collect or perform other types of operations in the same area again in the future, a flat seabed surface makes it easier for mining vehicles to move and position, reducing the complexity caused by terrain obstacles and improving work efficiency; It optimizes path planning: For automated or semi-automated mining vehicles, a flat working surface is more conducive to accurate navigation and path planning, reducing the operational difficulty and error rate caused by complex terrain.Since the rake head assembly 3 also includes a movable cover 32 and a fixed cover 33, when the rake head 31 rakes in the undisturbed soil, the presence of the movable cover 32 and the fixed cover 33 makes the rake head assembly 3 equivalent to a semi-enclosed structure, thereby reducing the amount of undisturbed soil raken in by the rake head 31 that leaks into the seawater; the first telescopic device 7 is used to adjust the digging angle of the rake head 31, so that the rake head 31 can dig at the optimal digging angle, thereby achieving the following benefits: improved digging efficiency: the optimal digging angle can ensure that the rake head 31 can cut into the undisturbed soil in the most efficient way, thereby maximizing the yield of undisturbed soil that can be collected in each operation. The optimal digging angle helps to avoid the undisturbed soil being missed or scattered during the collection process, ensuring... To maximize the collection of undisturbed soil and minimize environmental impact; to reduce energy consumption: the optimal digging angle significantly reduces friction and resistance between the scraper head 31 and the seabed undisturbed soil, allowing the propulsion system to complete the digging task without consuming excessive energy, thereby improving energy efficiency. It also allows the ore collection vehicle's power system to operate more efficiently, reducing unnecessary power waste and extending equipment lifespan; to reduce equipment wear: the optimal digging angle reduces excessive wear on the scraper head 31 and other key components (such as cutting teeth, transmission mechanisms, etc.), lowering maintenance costs and extending the overall lifespan of the equipment. It also helps to disperse forces, avoid stress concentration points, and reduce the risk of equipment damage. The first telescopic device 7 and the second telescopic device 8 are hydraulic devices, which can be hydraulic rods or hydraulic cylinders. The scraper head 31 is located at the bottom of the scraper head assembly 3, the first telescopic device 7 is installed at the top of the scraper head assembly 3, the water inlet 6 is installed in the middle of the scraper head assembly 3, the second end of the second telescopic device 8 is fixed to the rear of the track assembly 2, and the first end of the second telescopic device 8 is fixed to the fixed cover 33.

[0044] like Figure 1 As shown, in some embodiments, the rake head 31 is also equipped with a high-pressure nozzle 17 for high-pressure crushing of soil with high strength.

[0045] like Figure 1As shown, in some embodiments, the mining car also includes a frame platform 13. The transmission device includes a transmission pipe, an underwater pump 11, and a storage bin 12. The underwater pump 11 and the fixed cover 33 are connected by the transmission pipe. The underwater pump 11 and the storage bin 12 are connected by the transmission pipe. The transmission pipe between the underwater pump 11 and the rake assembly 3 is a flexible hose 10 or a rigid transmission pipe 9 that is partially a flexible hose 10 (such as a corrugated pipe), so that the second telescopic device 8 is not affected by the poor elasticity of the transmission pipeline when adjusting the height of the rake assembly 3. The transmission pipe between the underwater pump 11 and the storage bin 12 is a transmission... The rigid pipe 9 and the chassis platform 13 are fixed to the middle of the track assembly 2 by the base bracket fixing device 22 and the bracket 23 to support the underwater pump 11 and the storage bin 12. The base bracket fixing device 22 is installed on both sides of the track assembly 2, preferably 4, with two installed on each side of the track assembly 2. The underwater pump 11 is used to pump the mixture stored in the cavity and transfer it to the storage bin 12 for storage. The top of the storage bin 12 is equipped with a hoisting hose 16, through which the mixture stored in the storage bin 12 is pumped to the mother ship (not shown in the figure) on the water surface. The retractable hose 10 is used to buffer the displacement generated by the rake head 31 during operation. The buffer displacement can absorb the impact: In deep-sea mining operations, the rake head 31 may encounter different geological conditions when it comes into contact with the seabed, such as hard rock or soft rock. These strata of different hardness will cause the rake head 31 to be subjected to different degrees of impact force. The retractable device (such as the retractable hose 10, spring, hydraulic shock absorber, etc.) can absorb these impacts and prevent damage to the rake head 31 and its connecting parts.

[0046] like Figure 1 and Figure 3As shown, in some embodiments, the ore collecting car also includes a third telescopic device 15. The fixed cover 33 and the cover 1 are connected by the third telescopic device 15. The cover 1 is connected to the collecting device to form a dolphin-shaped cover 1, with the collecting device serving as the tail of the dolphin-shaped cover 1. The third telescopic device 15 can also buffer the displacement of the rake head 31 during operation. The third telescopic device 15 can be a hydraulic rod or a spring. The dolphin-shaped casing 1, connected to the collection device, offers the following advantages: Reduced drag: The dolphin-shaped design significantly reduces drag during underwater movement. This streamlined design reduces friction with water flow, making the ore collection vehicle more efficient in water and reducing energy consumption; Increased speed and maneuverability: Due to improved hydrodynamic performance, the ore collection vehicle can achieve higher speeds and exhibits better handling and flexibility in complex seabed terrain; Reduced ecological disturbance: The dolphin-shaped form helps reduce the impact on marine life and their habitats. The smooth surface and flowing lines reduce disturbance to the surrounding water, decreasing the amount of suspended sediment and thus mitigating the impact on water quality and the ecosystem. By mimicking the morphology of dolphins and other marine life, the ore collection vehicle can, to some extent, simulate their behavioral patterns, which helps to integrate more harmoniously into the marine environment and reduce disturbance to marine life.

[0047] like Figure 1 and Figure 2 As shown, in some embodiments, the system also includes a sonar and camera device 14, a communication and positioning device, and a spiral device 18. The sonar and camera device 14 is installed at the "eye" of the dolphin-shaped shell 1 to detect the terrain in front of the ore collection vehicle and to adjust the digging depth and angle of the rake head 31 in a timely manner, as well as to adjust the path and avoid obstacles. The communication and positioning device is installed at the dorsal fin of the dolphin-shaped shell 1 to ensure that the ore collection vehicle travels along the planned route (generally in a straight line) and to verify the travel speed. The spiral device 18 is installed at the dolphin fins on both sides of the dolphin-shaped shell 1 to maintain the posture of the ore collection vehicle during deployment and retrieval. The spiral device 18 can be a full-rotation propeller. In addition, the "mouth" of the dolphin-shaped shell 1 is used to prevent the front end of the track 21 from causing excessive diffusion of disturbed original soil during travel, and also to reduce the resistance of the ore collection vehicle during travel.

[0048] In some embodiments, a turbidity meter is also installed around the track and at a certain distance from the perimeter of the ore collecting car to monitor the concentration, range and velocity of the plume diffusion. An on-board concentration meter and flow meter are also installed in the transmission hard pipe 9 to measure the concentration and flow rate of the mixture absorbed by the underwater pump 11.

[0049] like Figure 5 As shown, another embodiment provides a mining method using the above-described ore collection vehicle, comprising the following steps:

[0050] The control commands control the movement of the track assembly 2 and the acquisition structure to collect undisturbed soil.

[0051] The sediment in the casing 1 is transferred to the collection structure through the inlet 4, the inlet pipe 5 and the inlet window 6; the transfer device transfers the mixture stored in the cavity.

[0052] In this embodiment, the soil agitated by the track assembly 2 is transported from the inlet 4, the inlet pipe 5, and the inlet window 6 to the collection structure. This allows the undisturbed soil collected by the collection structure to mix with the soil in the casing 1. On the one hand, this reduces the amount of soil agitated by the track assembly 2 during its movement, thereby reducing the plume and its impact on the water's clarity, i.e., its light transmittance. It also reduces the amount of sediment suspended in the water, thus reducing the likelihood of it adhering to the surface of organisms in the water, and consequently reducing the impact on aquatic organisms and the ecological environment. On the other hand, since the volume concentration of the undisturbed soil collected by the collection structure is often too high to meet the requirements for transport, water needs to be introduced to dilute it. The volume concentration of the mixture in the casing 1 is often much lower than that of the undisturbed soil collected by the collection structure. Therefore, by introducing the mixture from the casing 1 into the collection structure, the impact of introducing water from the seawater through the inlet window 6 on the surrounding environment is reduced.

[0053] Specifically, during the mining process, the physical parameters of the original soil are confirmed based on geological survey data, and the excavation depth is determined according to the required production capacity. The soil entry angle is determined based on its density and thickness parameters in conjunction with traditional empirical formulas. The second telescopic device 8 is adjusted to press the rake head 31 to the predetermined excavation depth. The first telescopic device 7 is adjusted to adjust the rake head 31 to the predetermined excavation angle. The underwater pump 11 is started to begin pumping, mainly using clean water at this time. The traveling device is started to advance at the speed set to complete the production capacity. The underwater pump 11 sucks in the sediment stirred up by the rake head 31 and the traveling device and pumps it into the hoisting hose 16, and then pumps it to the surface mother ship through the vertical lifting system. External control equipment adjusts key operational parameters such as travel speed, digging depth of scraper head 31, and rotation speed of underwater pump 11 in real time based on data detected by the turbidity meter, vehicle-mounted concentration meter, and flow meter. This ensures efficient and environmentally friendly ore collection. After the ore collection vehicle travels a certain distance, it slowly decelerates and turns around, repeating the above process to collect ore layer by layer from the target mining area. The specific adjustment process is as follows: the total output of scraper head 31 per unit time is equal to the product of the travel speed of scraper head 31 (i.e., the travel speed of the traveling device), the digging depth of scraper head 31, and the width of scraper head 31. The rotation speed of underwater pump 11 (mud pump) determines the output of sediment that can be pumped per unit time. If the output exceeds the capacity of underwater pump 11, it will cause pipeline blockage; if the output is less than the capacity of underwater pump 11, it will waste the performance of underwater pump 11. Therefore, real-time adjustment of multiple parameters is required. Normally, the width of the rake head 31 remains fixed. When the external speed measuring device detects a change in the travel speed, the total output of the rake head 31 can be maintained constant by changing the digging depth of the rake head 31, while the underwater pump 11 maintains its original rotation speed. Alternatively, the rotation speed of the underwater pump 11 can be changed to adapt to the change in total output. When the digging depth of the rake head 31 needs to be changed to adapt to the mining area, the total output of the rake head 31 can be maintained constant by changing the travel speed, while the underwater pump 11 maintains its original rotation speed. Alternatively, the rotation speed of the underwater pump 11 can be changed to adapt to the change in total output. The above is the basic logic of real-time adjustment. In actual engineering, the situation is more complex and may require simultaneous changes to parameters such as travel speed, digging depth of the rake head 31, and rotation speed of the underwater pump 11. However, regardless of how the parameters change, the changes will follow the above basic logic.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ore-collecting vehicle for deep-sea mining, characterized in that, Includes a data acquisition device, a transmission device, a traveling device, and a housing. The collection device includes a collection structure with a cavity and a water inlet window, the water inlet window being disposed on the collection structure. The transmission device includes a water pipe and transmission components. The transmission device and the traveling device are located inside the casing, which is used to store sediments stirred up by the traveling device during its movement. The casing is equipped with a water inlet. The transmission device is connected to the acquisition structure and is used to transmit the mixture stored in the cavity. The water inlet is connected to the water inlet window via the water inlet pipe. The sediment in the casing is transferred from the inlet, the inlet pipe, and the inlet window to the collection structure using the principle of negative pressure, so that the undisturbed soil collected by the collection structure is mixed with the sediment in the casing. The transfer device includes a transfer pipe, an underwater pump, and a storage tank. The underwater pump is used to pump the mixture stored in the cavity and transfer it to the storage tank for storage. The top of the storage tank is equipped with a hoisting hose, which, along with a vertical lifting system, pumps the mixture stored in the storage tank to the mother ship on the water surface.

2. The ore-collecting vehicle for deep-sea mining according to claim 1, characterized in that, The water inlets are evenly distributed on the casing.

3. The ore-collecting vehicle for deep-sea mining according to claim 1, characterized in that, The acquisition structure is a rake head assembly.

4. The ore-collecting vehicle for deep-sea mining according to claim 3, characterized in that, It also includes an adjustment device for adjusting the working angle and digging depth of the rake head assembly, and the adjustment device is connected to the rake head assembly.

5. The ore-collecting vehicle for deep-sea mining according to claim 4, characterized in that, The rake head assembly includes a rake head, a movable cover, a rotating shaft, and a fixed cover. The adjustment device includes a first telescopic device and a second telescopic device. The top of the movable cover and the fixed cover are connected through the first telescopic device, and the bottom of the movable cover and the fixed cover are connected through the rotating shaft. The first end of the second telescopic device is connected to the fixed cover, and the second end of the second telescopic device is connected to the traveling device.

6. The ore-collecting vehicle for deep-sea mining according to claim 5, characterized in that, The rake head is also equipped with a high-pressure nozzle.

7. The ore-collecting vehicle for deep-sea mining according to claim 5, characterized in that, The mining truck also includes a chassis platform. The underwater pump and the fixed cover are connected via the transmission pipe, and the underwater pump and the storage tank are also connected via the transmission pipe. The chassis platform is fixed to the traveling device and is used to support the underwater pump and the storage tank.

8. The ore-collecting vehicle for deep-sea mining according to claim 5, characterized in that, It also includes a third telescopic device, through which the fixed cover and the housing are connected, and the housing is connected to the collection device to form a dolphin-shaped housing, with the collection device serving as the tail of the dolphin-shaped housing.

9. The ore-collecting vehicle for deep-sea mining according to claim 8, characterized in that, It also includes a sonar and camera device, a communication and positioning device, and a spiral device. The sonar and camera device is installed at the dolphin-shaped eye of the dolphin-shaped shell, the communication and positioning device is installed at the dorsal fin of the dolphin-shaped shell, and the spiral device is installed at the dolphin fins on both sides of the dolphin-shaped shell.

10. A mining method using the ore collection car according to any one of claims 1 to 9, characterized in that, Includes the following steps: The control commands control the movement of the traveling device and the collection structure to collect undisturbed soil. The sediment in the casing is transferred to the collection structure through the water inlet, the water pipe, and the water inlet window; The transmission device transmits the mixture stored in the cavity.

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