A mineral transport long distance pump pipe system suitable for mobile deep sea mining mode

Abstract

The present application relates to a kind of mineral conveying long-distance pump pipe systems suitable for mobile deep sea mining mode, including slurry pump, multi-functional multidirectional thrust module, conveying hard tube, relay cabin, the slurry pump, multi-functional multidirectional thrust module, relay cabin are connected in series by conveying hard tube, and constitute long-distance pump pipe conveying system;The relay cabin is connected by hose mining car;Single multi-functional multidirectional thrust module is composed of internal annular through-flow pipe, cable inlet conduit, built-in small propelling pump, jet pipe containing electric valve, sea inlet pipe;Small propelling pump is arranged in internal annular through-flow pipe, and is fixed with outer layer internal annular through-flow pipe by upper cable inlet conduit, middle jet pipe and lower sea inlet pipe;Small propelling pump generates water flow when operating, and the water flow is ejected to generate thrust outside through jet pipe, to provide mobile thrust for long-distance pump pipe conveying system and provide thrust for local attitude adjustment.

Description

Technical Field

[0001] This invention relates to a mineral transport pump system for deep-sea mining, and more particularly to a highly reliable long-distance mineral transport pump system suitable for mobile deep-sea mining operations. Background Technology

[0002] Currently, deep-sea mineral mining systems ( Figure 1 It mainly consists of seabed ore collection cars, ore conveying systems and surface mining vessels, among which the ore conveying system mainly includes slurry pumps, conveying hard pipes, relay compartments, etc.

[0003] In the mining of deep-sea polymetallic nodules (also known as manganese nodules), due to their spherical shape scattered on the seabed surface, deep-sea mining systems (including seabed ore collection vehicles, mineral transport systems, and surface mining vessels) need to adopt a regional collection-slow movement-regional collection-slow movement... operation mode.

[0004] During the movement of the deep-sea polymetallic nodule mining system, both the surface mining vessel 12 and the seabed ore collection vehicle 11 are powered and capable of movement. However, the entire mineral pumping system lacks autonomous power and therefore relies on the surface mining vessel to tow the entire transport system. Polymetallic nodules are mainly distributed in the seabed surface layer at depths of 4000–6000 m. Therefore, the mineral transport system is an ultra-long pumping system exceeding 4000 meters in length, comprising a rigid pipe 3, a slurry pump 1, and a relay compartment 4. During towing, this ultra-long pumping system is highly susceptible to uneven stress, leading to damage or even breakage, thus affecting the entire mining system operation. Currently, although relevant research institutions both domestically and internationally have raised these issues and conducted related discussions, no improvement measures or solutions have yet been proposed.

[0005] Meanwhile, during deep-sea mining operations, the ultra-long pump pipe system is subjected to the forces of ocean currents at different depths below the sea surface. When the force of the ocean current at a certain depth is greater, it will cause greater local stress on the pump pipe system, resulting in the risk of local pipeline damage or even breakage, which will have a huge impact on the operation of the entire mining system. Summary of the Invention

[0006] This invention proposes a highly reliable long-distance pump pipe system for mineral transport suitable for mobile deep-sea mining operations. The aim is to address the need for phased relocation of the entire transport system during polymetallic nodule mining. By integrating a multi-functional, multi-directional thrust module into the mineral transport system, the system provides power for the entire relocation process, thereby improving the operational reliability of the long-distance pump pipe system in mobile deep-sea mining operations. Furthermore, during normal operations, the ultra-long pump pipe system is subjected to ocean currents at varying depths below the sea surface. When the current force is strong at a certain depth, causing significant localized stress on the pump pipe system and affecting its safety, the system will, based on the status monitoring feedback of the long-distance pump pipe system, [take appropriate action]. Activating the thrust module near the stress-affected part of the pipeline system, combined with the operation of the small propulsion pump at different speeds and the opening of the electric valve, generates a thrust that is opposite in direction and matches the magnitude of the external ocean current force. This allows for local attitude adjustment of the long-distance pump pipeline system, offsetting or weakening the adverse effects of external forces on the pump pipeline system. It also reduces the risk of system pipeline damage or even breakage due to excessive local stress, thereby improving the reliability and stability of the long-distance mineral transport pump pipeline system. Thirdly, the arrangement of multiple multi-functional and multi-directional thrust modules in the pump pipeline system, to a certain extent, helps to guide and prevent blockage of the slurry containing large solid particles inside the long-distance transport pump pipeline system, thereby improving the operational stability of the long-distance pump pipeline system for transporting slurry.

[0007] To achieve the above objectives, the technical solution of the present invention is: a long-distance pump-pipe system for mineral transport suitable for mobile deep-sea mining, comprising a slurry pump, a multi-functional multi-directional thrust module, a transport rigid pipe, and a relay compartment. The slurry pump, the multi-functional multi-directional thrust module, and the relay compartment are connected in series through the transport rigid pipe to form a long-distance pump-pipe transport system. The relay compartment is connected to a mining vehicle via a flexible hose. Each multi-functional multi-directional thrust module consists of an internal annular flow pipe, a cable inlet pipe, a built-in small propulsion pump, a jet pipe with an electric valve, and a sea-entry inlet pipe. The small propulsion pump is arranged inside the internal annular flow pipe and is fixed to the outer internal annular flow pipe through the upper cable inlet pipe, the middle jet pipe, and the lower sea-entry inlet pipe. When the small propulsion pump is running, it generates water flow that is ejected outward through the jet pipe to generate thrust, which provides thrust for the long-distance pump-pipe transport system and provides thrust for local attitude adjustment.

[0008] Furthermore, the outer shell of the internal annular flow channel is the outer shell of the thrust module, and the inlet and outlet of the annular flow channel, i.e. the inlet and outlet of the thrust module, are consistent with the interface of the delivery rigid pipe, so that the thrust module can be connected in series in a long-distance pump pipe system.

[0009] Furthermore, the cable inlet pipe in the multi-functional multi-directional thrust module provides power to the thrust module through the cable and also serves to fix the upper end of the small propulsion pump; at the same time, the cable inlet pipe is located in the transition area between the annular flow pipe and the mineral transport hard pipe, which can play a certain role in guiding the slurry flowing in the channel, preventing solid particles in the slurry from accumulating and clogging, and reducing the risk of blockage.

[0010] Furthermore, the number of cable inlet pipes is determined according to the cable layout, the upper fixing of the small propulsion pump, and the slurry flow guidance requirements. The shape of the cable inlet pipes is a combination of one or more shapes, such as circular, elliptical, wing-shaped, and rhomboid, depending on the slurry concentration, particle size, and flow characteristics.

[0011] Furthermore, the injection pipe in the multi-functional multi-directional thrust module consists of a pipe and an electric valve. The injection pipe forms the outlet pipe for thrust by spraying water outwards. Combined with the speed adjustment of the small propulsion pump and the opening and closing of the electric valve, the direction and magnitude of the water sprayed outwards can be controlled, thereby controlling the direction and magnitude of the thrust. The injection pipe plays a role in fixing the middle of the small propulsion pump. Moreover, the injection pipe is located in the middle of the internal annular flow pipe, which can play a certain role in guiding the slurry passing through the middle of the annular flow pipe, preventing the accumulation of solid particles in the slurry and reducing the risk of local blockage.

[0012] Furthermore, the flow diameter and number of the jetting pipes are determined according to the required thrust and the attitude adjustment requirements of the long-distance pump pipe delivery system, while also taking into account the functions of fixing small propulsion pumps and slurry diversion. The shape of the jetting pipes is arranged in a mixture of one or more shapes, such as circular, elliptical, airfoil and rhomboid, according to the slurry concentration, particle size and flow characteristics.

[0013] Furthermore, the seawater inlet pipe in the multi-functional multi-directional thrust module is the inlet pipe for the seawater working medium of the built-in small propulsion pump; it also serves to fix the lower end of the built-in small propulsion pump; the seawater inlet pipe is located in the lower inlet area of ​​the internal annular inlet pipe, which can play a certain guiding role for the slurry entering from the lower part of the annular inlet pipe, preventing the accumulation of solid particles at the inlet of the annular inlet pipe and reducing the risk of inlet blockage.

[0014] Furthermore, the diameter and number of the inlet pipes are determined according to the flow requirements of the small propulsion pump, the lower end fixing requirements, and the slurry diversion requirements. The shape of the inlet pipes is arranged in one of the following shapes: circular, elliptical, airfoil, and rhomboid, or a mixture of multiple shapes, depending on the slurry concentration, particle size, and flow characteristics.

[0015] Furthermore, the small propulsion pump in the multi-functional multi-directional thrust module is arranged inside the annular flow pipe and is connected and fixed to the housing of the multi-functional multi-directional thrust module through the inlet pipe, the jet pipe, and the inlet pipe. The small propulsion pump is driven by a variable frequency drive. By adjusting the speed and combining it with the opening and closing of the electric valve in the jet pipe, it can provide jet water flow with different flow rates and heads, providing the thrust required for the movement and attitude adjustment of the long-distance pump pipe system.

[0016] Furthermore, the multi-functional multi-directional thrust module, based on the deep-sea mining depth, the composition of the long-distance pump pipe transportation system, the material of the conveying hard pipe, the connection method between conveying hard pipes and between the conveying hard pipe and the slurry pump, and combined with the mechanical properties of the conveying hard pipe, the strength of the conveying hard pipe joint, and the structural mechanical characteristics of the long-distance pump pipe transportation system, determines the number of multi-functional multi-directional thrust modules required for the entire pump pipe system and their specific placement in the system.

[0017] The beneficial effects of this invention are:

[0018] This invention provides a highly reliable long-distance pumping system for mineral transport suitable for mobile deep-sea mining. By arranging multiple multifunctional, multi-directional thrust modules within the mineral transport pumping system, it can provide thrust for the underwater long-distance pumping system, resulting in the following beneficial effects:

[0019] 1. When a long-distance pump pipeline system is significantly affected by external ocean currents, and the local stress on the pipeline exceeds the limit at a certain depth, affecting the safety of the system, the system will activate the thrust module near the affected part of the pipeline based on the status monitoring feedback of the long-distance pump pipeline system. Combined with the adjustment of the speed of the small propulsion pump and the opening of the electric valve, a thrust opposite in direction and matching in magnitude to the external force will be generated to adjust the local attitude of the long-distance pump pipeline system, offset or weaken the adverse effects of external forces on the pump pipeline system, reduce the risk of pipeline damage or even breakage due to excessive local stress, and thus improve the reliability and stability of the long-distance pump pipeline system for mineral transportation.

[0020] 2. When the mining system has completed its mining in a local area and the entire surface and underwater system is slowly moving for relocation operations, the system will activate all the thrust modules arranged in the pump pipe system according to the direction and speed of movement of the entire long-distance pump pipe system. Through the control of the speed of the built-in small propulsion pump and the opening and closing of the electric valve, thrust is generated that matches the direction and speed of the system's movement. This makes the force on each part of the long-distance pump pipe system more even during the movement, prevents damage to the entire long-distance pump pipe system, reduces system risk, and is more suitable for the mobile operation mode of deep-sea mining systems.

[0021] 3. The slurry transported by long-distance pumping systems contains a large amount of ore particles. During the slurry transport process, there is a risk of particle accumulation and blockage within the pumping system. The upper cable inlet pipe, the middle jet pipe, and the lower sea-entry inlet pipe of the multi-functional, multi-directional thrust module can function similarly to guide vanes, guiding the ore particles in the flowing slurry. The distributed arrangement of the thrust modules in the long-distance pumping system is equivalent to placing multiple guiding devices at different locations within the system, reducing the risk of slurry particle blockage and thus improving the reliability of the entire deep-sea mining system.

[0022] Overall, the high-reliability long-distance pump pipe system for mineral transport suitable for mobile deep-sea mining modes of the present invention can better adapt to the mining operation mode of collection-movement-collection-movement, and has the function of adjusting the attitude of underwater pump pipes and guiding the flow of slurry, which greatly improves the reliability and safety of deep-sea mining system operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an existing deep-sea mineral mining system;

[0024] Figure 2 This is a schematic diagram of a long-distance pump pipeline system for transporting minerals using this method;

[0025] Figure 3 This is a longitudinal sectional view of the internal structure of the multi-functional, multi-directional thrust module;

[0026] Figure 4 This is a cross-sectional view of the internal structure of the multi-functional, multi-directional thrust module;

[0027] Figure 5 This is an outline drawing of a multi-functional, multi-directional thrust module;

[0028] Figure 6 These are schematic diagrams of different forms of inlet pipes, jet pipes, and flow inlet pipes. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0030] like Figures 2 to 6 As shown, a highly reliable long-distance pumping system for transporting minerals, suitable for mobile deep-sea mining, includes a slurry pump 1, a multi-functional multi-directional thrust module 2, a transport rigid pipe 3, and a relay compartment 4.

[0031] The slurry pump 1, the multi-functional multi-directional thrust module 2, and the relay compartment 4 are connected in series via a conveying rigid pipe 3 to form a long-distance pump pipe conveying system; the relay compartment 4 is connected to the mining vehicle 11 via a flexible hose 10.

[0032] The multi-functional multi-directional thrust module 2 needs to be designed and determined based on the mining depth, the composition of the long-distance pump pipe system, the material of the rigid pipe, the connection method between rigid pipes and between the rigid pipe and the pump, and the analysis of the mechanical properties of the rigid pipe, the strength of the rigid pipe joint, and the structural dynamics of the pump pipe system. The number of multi-functional multi-directional thrust modules and the specific placement of each thrust module in the pump pipe system are required to meet the movement and attitude adjustment needs of the entire pump pipe system.

[0033] like Figures 3 to 5 As shown, the multi-functional multi-directional thrust module 2 consists of an internal annular flow channel 5, a cable inlet channel 6, a small propulsion pump 7, a jet channel (including an electric valve) 8, and a sea-entry inlet channel 9. The outer shell of the internal annular flow channel 5 is the outer shell of the thrust module. The inlet and outlet of the internal annular flow channel 5, which are also the inlet and outlet of the thrust module, are consistent with the rigid pipe interface, so that the thrust module can be connected in series in a long-distance pump pipe system. The small propulsion pump 7 is arranged inside the internal annular flow channel 5 and is fixed to the outer shell of the internal annular flow channel 5 through the upper cable inlet channel 6, the middle jet channel 8, and the lower sea-entry inlet channel 9. When the small propulsion pump 7 is running, it generates water flow that is ejected outward through the jet channel 8 to generate thrust, which plays a role in providing thrust for the movement of the long-distance pump pipe system and for local attitude adjustment of the system.

[0034] like Figures 3 to 5 As shown, the main function of the cable inlet pipe 6 in the multi-functional multi-directional thrust module 2 is to provide power to the thrust module through the internal cable and to fix the upper end of the small propulsion pump 7. At the same time, the cable inlet pipe 6 is located in the transition area between the annular flow pipe and the mineral transport rigid pipe, which can play a certain role in guiding the slurry flowing in the channel, preventing the accumulation of ore particles in the slurry, and reducing the risk of pipeline system congestion and blockage. The number and layout of the cable inlet pipe 6 need to be determined according to the requirements of cable inlet, upper fixation of the small propulsion pump, and slurry flow guidance. The pipe shape can be designed according to different conditions such as slurry concentration, particle size, and flow characteristics, adopting one or more of the following shapes: circular, elliptical, wing-shaped, and rhomboid, to improve the slurry guidance effect.

[0035] like Figures 3 to 5As shown, the jet pipe 8 in the multi-functional multi-directional thrust module 2 consists of a pipe and an electric valve. Firstly, the jet pipe is a flow channel that sprays water to generate thrust. Simultaneously, combined with the speed adjustment of the small propulsion pump 7 and the opening and closing of the electric valve, the direction and magnitude of the sprayed water can be controlled, thereby controlling the direction and magnitude of the thrust. Secondly, the jet pipe 8 provides fixation for the middle section of the small propulsion pump 7. Thirdly, being located in the middle of the annular flow channel, the jet pipe 8 can guide the slurry passing through the middle of the annular flow channel, preventing the accumulation of solid particles in the slurry and reducing the risk of local blockage. Based on the thrust provided to the pump system and the requirements for adjusting the pump system's attitude, while also considering the fixation requirements of the small propulsion pump and the slurry guidance requirements, the flow diameter, quantity, and arrangement of the jet pipes need to be specifically designed. Furthermore, the shape of the jet pipe 8 can be arranged in a combination of one or more shapes, such as circular, elliptical, airfoil, and rhomboid, depending on the slurry concentration, particle size, and flow characteristics, to improve the slurry guidance effect.

[0036] like Figures 3 to 5 As shown, the seawater inlet pipe 9 in the multi-functional multi-directional thrust module 2 serves two purposes: firstly, it is the inlet pipe for the seawater working medium of the built-in small propulsion pump; secondly, it fixes the lower end of the built-in small propulsion pump 7; and thirdly, located in the lower inlet area of ​​the annular flow pipe, it can guide the slurry entering from the lower part of the annular flow pipe, preventing the accumulation of solid particles at the inlet of the annular flow pipe and reducing the risk of inlet blockage. The inlet pipe 9 needs to be determined according to the flow requirements of the small propulsion pump 7, the lower end fixing requirements, and the slurry guiding requirements. Furthermore, the shape of the inlet pipe can be arranged in one or more of the following shapes, such as circular, elliptical, airfoil, and rhomboid, or a combination of multiple shapes, depending on the slurry concentration, particle size, and flow characteristics, to improve the slurry guiding effect.

[0037] like Figures 3 to 5 As shown, the small propulsion pump 7 in the multi-functional multi-directional thrust module 2 is arranged inside the annular flow pipe and is connected and fixed to the outer shell of the multi-functional multi-directional thrust module 2 (i.e., the outer shell of the annular flow pipe 5) through the inlet pipe 6, the jet pipe 8, and the inlet pipe 9. The small propulsion pump 7 needs to be designed specifically for its shape, flow rate, head, and arrangement according to the system requirements. It adopts frequency conversion drive and provides jet water flow with different flow rates, heads, and directions by adjusting the speed and combining the opening and closing of the electric valve in the jet pipe. This provides the thrust required for the movement and attitude adjustment of the long-distance pump pipe system.

[0038] When the deep-sea mining system is stationary in a certain area for mining operations and the entire ore transport system is minimally affected by ocean currents, the multi-functional, multi-directional thrust module is in standby mode; the thrust module is activated when the following conditions are met:

[0039] (1) When a long-distance pump pipeline system is subjected to significant external forces such as ocean currents, and the local stress on the pipeline system poses a risk of damage or even breakage, affecting the safety of the system, the surface control system will activate the thrust module closest to the area affected by the force in the pump pipeline system based on the system monitoring feedback. By adjusting the speed of the built-in small propulsion pump and opening and closing the electric valve, a thrust opposite to the external force is generated to adjust the attitude of the pipeline system, offset or reduce the adverse effects of the external force on the pipeline system, thereby improving the reliability and stability of the transport system operation.

[0040] (2) When the mining system has completed the mining in a local area and moves to a new location for relocation, the system will activate all thrust modules according to the overall direction and speed of movement. By controlling the speed of the built-in small propulsion pump and opening and closing the electric valve, thrust will be generated that matches the direction and speed of movement of the system. This will make the force on each part of the long-distance conveying pump pipe system more uniform during the movement, reduce the risk of damage, improve the reliability of the long-distance conveying pump pipe system, and make it more suitable for the mobile operation mode of the mining system.

[0041] (3) Throughout the entire operation, the upper cable inlet pipe, the middle jet pipe, and the lower sea-entry pipe inside the multi-functional multi-directional thrust module can all play a role similar to guide vanes, which can guide the flowing slurry to a certain extent. This is equivalent to arranging multiple slurry guiding devices in the entire pump pipe system, which can prevent large slurry particles from blocking the pump pipe system to a certain extent.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A long-distance pumping pipeline system for transporting minerals suitable for mobile deep-sea mining operations, characterized in that: The system includes a slurry pump, a multi-functional multi-directional thrust module, a conveying rigid pipe, and a relay compartment. The slurry pump, multi-functional multi-directional thrust module, and relay compartment are connected in series via the conveying rigid pipe to form a long-distance pump-pipe delivery system. The relay compartment is connected to a mining vehicle via a flexible hose. Each multi-functional multi-directional thrust module consists of an internal annular flow pipe, a cable inlet pipe, a built-in small propulsion pump, a jet pipe with an electric valve, and a sea-entry inlet pipe. The small propulsion pump is located inside the internal annular flow pipe and is fixed to the outer internal annular flow pipe through the upper cable inlet pipe, the middle jet pipe, and the lower sea-entry inlet pipe. When the small propulsion pump is running, it generates water flow that is ejected outward through the jet pipe to generate thrust, providing moving thrust for the long-distance pump-pipe delivery system and providing thrust for local attitude adjustment.

2. The long-distance pump pipeline system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The outer shell of the internal annular flow channel is the outer shell of the thrust module. The inlet and outlet of the annular flow channel, which is also the inlet and outlet of the thrust module, are consistent with the interface of the delivery rigid pipe, so that the thrust module can be connected in series in a long-distance pump pipe system.

3. The long-distance pump pipeline system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The cable inlet pipe in the multi-functional multi-directional thrust module provides power to the thrust module through the cable and also serves to fix the upper end of the small propulsion pump. At the same time, the cable inlet pipe is located in the transition area between the annular flow pipe and the mineral transport hard pipe, which can play a certain role in guiding the slurry flowing in the channel, preventing solid particles in the slurry from accumulating and clogging, and reducing the risk of blockage.

4. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 3, characterized in that: The number of cable inlet pipes is determined according to the cable layout, the upper fixing of the small propulsion pump, and the slurry flow guidance requirements. The shape of the cable inlet pipes is a combination of one or more shapes, such as circular, elliptical, wing-shaped, and rhomboid, depending on the slurry concentration, particle size, and flow characteristics.

5. The long-distance pump pipeline system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The injection pipe in the multi-functional multi-directional thrust module consists of a pipe and an electric valve. The injection pipe forms the outlet pipe for thrust by spraying water outwards. Combined with the speed adjustment of the small propulsion pump and the opening and closing of the electric valve, the direction and magnitude of the water sprayed outwards can be controlled, thereby controlling the direction and magnitude of the thrust. The injection pipe plays a role in fixing the middle of the small propulsion pump. Moreover, the injection pipe is located in the middle of the internal annular flow pipe, which can play a certain role in guiding the slurry passing through the middle of the annular flow pipe, preventing the accumulation of solid particles in the slurry and reducing the risk of local blockage.

6. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 5, characterized in that: The jetting pipes are designed according to the required thrust and the attitude adjustment requirements of the long-distance pump pipe delivery system, while also taking into account the functions of fixed small propulsion pumps and slurry diversion. The flow diameter and number of jetting pipes are determined, and the shape of the jetting pipes is arranged in a mixture of one or more shapes, such as circular, elliptical, airfoil and rhomboid, according to the slurry concentration, particle size and flow characteristics.

7. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The seawater inlet pipe in the multi-functional multi-directional thrust module is the inlet pipe for the seawater working medium of the built-in small propulsion pump; it also serves to fix the lower end of the built-in small propulsion pump; the seawater inlet pipe is located in the lower inlet area of ​​the internal annular inlet pipe, which can play a certain role in guiding the slurry entering from the lower part of the annular inlet pipe, preventing the accumulation of solid particles at the inlet of the annular inlet pipe, and reducing the risk of inlet blockage.

8. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 7, characterized in that: The diameter and number of the inlet pipes are determined based on the flow requirements of the small propulsion pump, the need for fixing at the lower end, and the slurry drainage requirements. The shape of the inlet pipes is arranged in one of the following shapes: circular, elliptical, airfoil, and rhomboid, or a combination of multiple shapes, depending on the slurry concentration, particle size, and flow characteristics.

9. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The small propulsion pump in the multi-functional multi-directional thrust module is arranged inside the annular flow pipe and is connected and fixed to the housing of the multi-functional multi-directional thrust module through the inlet pipe, the jet pipe, and the inlet pipe. The small propulsion pump is driven by a variable frequency drive. By adjusting the speed and combining it with the opening and closing of the electric valve in the jet pipe, it can provide jet water flow with different flow rates and heads, providing the thrust required for the movement and attitude adjustment of the long-distance pump pipe system.

10. The long-distance pumping system for mineral transport suitable for mobile deep-sea mining as described in claim 1, characterized in that: The multi-functional multi-directional thrust module is determined based on the deep-sea mining depth, the composition of the long-distance pump pipe transportation system, the material of the conveying hard pipe, the connection method between conveying hard pipes and between the conveying hard pipe and the slurry pump, and in combination with the mechanical properties of the conveying hard pipe, the strength of the conveying hard pipe joint, and the structural mechanical characteristics of the long-distance pump pipe transportation system. The number of multi-functional multi-directional thrust modules required for the entire pump pipe system and their specific placement in the system are determined.

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