Deep-sea mining mixed transport system

Abstract

The deep-sea mining mixed transportation system comprises a transfer station, an ore material control cylinder 3 is sealingly connected to the lower end of a bunker 1 of the transfer station, the piston end of the upper end of an automatically controlled hydraulic cylinder 5 is hingedly connected to the lower end of the ore material control cylinder, the automatically controlled hydraulic cylinder includes a control valve 52, a hydraulic cylinder and a piston rod, the control valve includes a valve body, an indicator valve core and a follower valve core, the indicator valve core includes a valve core sleeve and a valve core shaft, the lower end of the indicator valve core protrudes sealingly downward outside the valve body and is fixedly connected to the control rod, the follower valve core is fitted between the valve core sleeve and the valve core shaft and its upper end is connected to a bolt, the bolt and the piston form a spiral pair. [Effects] It is possible to eliminate clogging in the ore supply port mesh and crush the ore into an arch structure, and also to adjust the solid-liquid ratio of the ore transported by the lift hard pipe.

Description

[Technical Field]

[0001] The present invention relates to the technical field of deep-sea mining equipment, and more specifically to a deep-sea mining mixed transportation system that transports ores, seawater, etc. from the seabed to a mother ship. [Background technology]

[0002] The deep-sea mining mixed transport system includes hoses, hose pumps, a transfer station, a mixed flow pump, a lift hard pipe, and a mother ship, and the transfer station includes a bunker, a hydraulic station, an ore material supply pipe, etc. The mixed transport system transports ore particles and seawater from the seabed to the bunker of the transfer station using hoses and hose pumps, and the bunker transports the ore slurry from the bunker to the mother ship on the sea surface using the ore material supply mechanism of the bottom lift hard pipe, the mixed flow pump, and the lift hard pipe. That is, the bunker is responsible for the accumulation and relay of seabed ore materials.

[0003] The deep-sea mining mixed transport system uses a lift hard pipe and a mixed flow pump to lift the ore slurry from the bunker. In addition to the high height to which the ore slurry must be lifted, the diameter of the lift hard pipe and the flow rate of the ore slurry are limited, so the ore particle size and ore slurry concentration are strict requirements. Both large ore particle size and high ore slurry concentration are prone to clogging the lift hard pipe and mixed flow pump, which further affects the operating efficiency of the deep-sea mining mixed transport system.

[0004] To prevent oversized ore particles from clogging the lift hard pipe and mixed-flow pump, a Chinese patent application numbered 2024104358527 and titled "Deep Sea Mining System" discloses a system designed to crush and sieve the ore before transporting it through the lift hard pipe and then transporting it to a bunker. This solved the problem of oversized ore particles clogging the lift hard pipe, but it still had problems ensuring that all ore particles entering the bunker were of the correct size. Three types of situations were encountered: irregular particle shapes after crushing, which meant that some ore particles passed through the sieve even though their longitudinal size exceeded the sieve size; localized damage to the sieve that could not be detected immediately; and other unexpected deep-sea conditions that caused some large ore particles to fall into the bunker.

[0005] In order to fully ensure the safe operation of equipment such as lifting hard pipes and mixed flow pumps, it is common to add a mesh to the ore material inlet of the lifting hard pipe at the bottom of the bunker to stop large ore particles. As a result, some ore material particles get stuck in the mesh of the ore material inlet, and even some ore material particles form an arch structure around the mesh of the ore material inlet, preventing the ore material particles from always passing through the mesh of the ore material inlet smoothly. With the increase in operating time, the phenomenon of the mesh of the ore material inlet being clogged and the formation of the arch structure becomes more and more serious, which further affects the amount of ore material transported per unit time by the lifting hard pipe and mixed flow pump.

[0006] Furthermore, when transporting ore materials using a lift hard pipe and a mixed flow pump, there are requirements not only for the size of the ore material particles but also for the transport concentration of the ore material. However, even though the bunker of the conventional transfer station can control the size of the ore material particles, it cannot prevent the ore material particles from clogging the mesh of the ore material supply port, and it cannot eliminate the arch structure caused by the ore material particles around the mesh of the ore material supply port, making it even more impossible to control the ratio of the ore material and seawater entering the lift hard pipe.

[0007] To summarize, the current deep-sea mining mixed transportation system has two main problems: the lack of a cleaning mechanism for the mesh at the ore material supply port of the lift hard pipe in the bunker makes it easy for the mesh to become clogged or for arch structures to form at the ore material supply port of the lift hard pipe, which further affects the amount of material supplied to the lift hard pipe; the lack of a concentration adjustment mechanism at the ore material supply port of the lift hard pipe makes it easy for the lift hard pipe to become clogged when a large amount of material is transported and the solid-liquid ratio is high; and the lack of a concentration adjustment mechanism at the ore material supply port of the lift hard pipe makes it easy for the lift hard pipe to become clogged when a small amount of material is transported and the solid-liquid ratio is low, which reduces the transportation efficiency. Summary of the Invention [Problem to be solved by the invention]

[0008] In order to overcome the drawbacks of the prior art, the present invention aims to provide a deep-sea mining mixed transportation system that uses an automatically controlled hydraulic cylinder as power source to eliminate clogging in the mesh of the ore material supply port and crush the arch structure by using the ore material supply mechanism of the lift hard pipe, and can adjust the solid-liquid ratio of the ore material transported by the lift hard pipe, thereby satisfying the efficient operation of the deep-sea mining mixed transportation system. [Means for solving the problem]

[0009] To achieve the above objectives, the deep-sea mining mixed transportation system of the present invention is realized by the following technical solutions:

[0010] In a deep-sea mining mixed transportation system comprising a hose, a relay station and a lift hard pipe arranged in sequence, a hose pump attached to the hose, a mixed flow pump attached to the lift hard pipe, an inlet of the hose located in an ore material stack, and an outlet of the lift hard pipe connected to a mother ship, the relay station has one bunker, the bunker has an inlet at its upper end and an ore material control cylinder hermetically connected to its lower end, an ore material supply pipe is inserted into the ore material control cylinder with a gap coaxially therewith, and the ore material supply pipe is directed upward to supply the ore material. The ore material supply pipe penetrates the ore material control cylinder and extends into the bunker, and the lower end of the ore material supply pipe protrudes from the ore material control cylinder and is fixedly connected to the lift hard pipe. A plurality of ore material supply port networks are spirally arranged on the side wall of the ore material supply pipe extending into the bunker. The ore material supply port networks are spirally arranged on the upper part of the ore material supply pipe. A guide flange is fixedly connected to the lower end of the ore material control cylinder, and a seawater inlet is provided in the guide flange to allow seawater to flow in. An automatically controlled hydraulic cylinder is provided below the ore material control cylinder and connected to the side wall of the ore material supply pipe. The automatically controlled hydraulic cylinder has a piston end at its upper end and is hingedly connected to the lower end of the ore material control cylinder, so that the ore material control cylinder can be moved up and down in conjunction with the piston end. The automatically controlled hydraulic cylinder includes a control valve, a hydraulic cylinder, and a piston rod. The control valve is connected to the lower end of the hydraulic cylinder directly below the hydraulic cylinder in a sealed manner. A first oil port is opened in the axial direction on the valve body, and a second oil port, an oil supply port, and an oil discharge port are opened on the side wall of the valve body. The first oil port is connected to the rodless cavity of the hydraulic cylinder, and the second oil port is connected to the rod-containing cavity of the hydraulic cylinder. The control valve communicates with the cavity, and includes a valve body, an indicator valve core, and a follower valve core. The indicator valve core includes a valve core sleeve and a valve core shaft. The indicator valve core has a lower end that protrudes sealingly downward from the outside of the valve body and is fixedly connected to the control rod. The follower valve core is fitted between the valve core sleeve and the valve core shaft, and has an upper end that protrudes from the upper end of the valve body and is connected to a bolt. The bolt and a piston in a hydraulic cylinder form a spiral pair, which rotates the control rod and changes the position of the indicator valve core relative to the valve body.The tracking valve core communicates the oil supply and oil discharge directions at both ends of the hydraulic cylinder according to the relative deflection direction with the indicating valve core, driving the piston to move up and down, and the tracking valve core is interlocked to rotate in the deflection direction set by the indicating valve core, setting the axial position where the piston stops in the hydraulic cylinder. When the piston reaches the set position, the tracking valve core automatically closes the first and second oil ports, connecting the oil supply port and the oil discharge port, forming a deep-sea mining mixed transport system.

[0011] Furthermore, a through valve core mounting hole with a larger diameter at the bottom and a smaller diameter at the top is provided in the center of the valve body, and the upper part of the follower valve core is fitted into the upper part of the valve core mounting hole. An oblique angle is provided at the bend between the larger diameter of the valve core mounting hole and the step plane, and the valve body, the valve core sleeve and the follower valve core are surrounded by the oblique angle to form a sealed space. The valve core sleeve is a step bushing with a smaller diameter at the bottom and a larger diameter at the top. A first inner hole is provided in the center of the upper part, and the lower part of the follower valve core is fitted into the first inner hole. The upper part of the shaft A is fitted into the inner hole of the follower valve core, and the upper side wall of the valve core sleeve is provided with four identical arc-shaped holes penetrating the side wall. The arc-shaped holes have a central angle of 150° to 160°. Two arc-shaped holes distributed evenly on the same radial cross section form one group, and the two arc-shaped holes in each group are radially opposite each other. The arc-shaped holes in the two groups are parallel to the axial direction and are distributed at a 90° offset from the radial center line. The two arc-shaped holes in the lower group are holes A and B, and the two arc-shaped holes in the upper group are holes C and D. The oil supply port is connected to the B hole, the oil discharge port is connected to the A hole, the D hole is connected to the second oil port, and the axial oil hole K is provided between the C hole and the upper end surface of the valve core sleeve, and the K oil hole is connected to the sealed space and the first oil hole. The F tank is provided in the middle of the upper part of the valve core shaft, and the bottom of the F tank is a plane beyond the central axis of the valve core shaft. The follow-up valve core is a one-stage cylindrical shape with a larger diameter at the bottom and a smaller diameter at the top. A second inner hole is provided in the center of the lower part to engage with the upper part of the valve core shaft, and the lower part of the valve core shaft is It extends into the lower small hole of the valve core sleeve and is fixed by the first elastic pin. The lower side wall of the following valve core has symmetrical M-waist holes and N-waist holes. The length of the two waist holes corresponds to the axial distance between the two groups of circular holes in the valve core sleeve, and the width can be completely covered by the radial connection points of both ends of holes C and D. In the initial state, the M-waist holes and N-waist holes are located exactly at the two connection points between holes C and D, blocking the communication between holes B and A and holes C and D.

[0012] Furthermore, on the step surface of the valve core sleeve below hole A, there is a radial groove E, which has the same radial origin, direction and radian angle as hole A and is parallel to hole A in the axial direction. A first position control screw is engaged with groove E to limit the rotation angle of the valve core sleeve. At the lower end of the follower valve core, there is groove G, which is located radially between the M-waist hole and the N-waist hole. The radial angle of groove G is equal to or greater than groove E. A second position control screw is engaged between groove G and the valve core sleeve to limit the rotation range of the follower valve core on the valve core sleeve. [Effects of the Invention]

[0013] After the present invention adopts the above technical solutions, the beneficial effects are as follows:

[0014] 1. In the ore material supply mechanism of the lift hard pipe of the present invention, the piston rod of the automatically controlled hydraulic cylinder presses the ore material control tube in an orderly manner to move it up and down along the ore material supply pipe. First, it can remove the ore material stuck in the ore material supply inlet mesh and crush the arch structure of the ore material around the ore material supply inlet mesh. The ore material removal ring is loosely fitted into the ore material supply pipe, so the automatically controlled hydraulic cylinder presses the ore material control tube and moves the ore material removal ring upward. The upper end surface of the ore material removal ring presses and shears the ore material stuck in the ore material supply inlet mesh, thereby crushing the ore material stuck in the ore material supply inlet mesh and completing the cleaning of the ore material supply inlet mesh. During the cleaning process of the ore feed inlet mesh, the ore material removal ring moves up and down continuously and systematically along the ore feed pipe, continuously stirring the ore material around the ore feed inlet mesh and preventing the ore material around the ore feed inlet mesh from forming an arched structure. This ensures the continuous and stable transport of ore material to the lifting hard pipe via the ore feed inlet mesh. Secondly, it allows for the adjustment of the solid-liquid ratio of the ore slurry. The automatically controlled hydraulic cylinder allows the piston rod to be freely positioned, and the ore material removal ring in the ore control tube is loosely fitted to the ore feed pipe. This allows the ore control tube and ore material removal ring to be used to separate and isolate the ore feed inlet mesh on the ore feed pipe. Some of the ore feed inlet mesh are isolated by the ore control tube and ore material removal ring and separated from the bunker, i.e., detached from the ore material, and are covered and positioned within the ore control tube, connecting to the sea and drawing in seawater. Therefore, by adjusting the vertical position of the ore material control cylinder using an automatically controlled hydraulic cylinder, the ratio of the number of ore material supply inlet meshes in the bunker to the number of ore material supply inlet meshes in the ore material control cylinder can be changed, thereby adjusting the solid-liquid ratio of the ore slurry.

[0015] 2. In the present invention, the top of the ore material supply pipe in the bunker is closed and closed as a conical cone, which serves to break the arch structure of the ore material at the top of the ore material supply pipe in the bunker and prevent the ore material from forming an arch structure at the top of the ore material supply port.

[0016] 3. In the automatically controlled hydraulic cylinder of this invention, the position of the piston in the hydraulic cylinder is set by rotating the control rod. The deflection direction of the indicator valve core relative to the follower valve core determines the flow direction of the hydraulic oil in the hydraulic cylinder, i.e., whether the hydraulic oil enters from the bottom and exits from the top or from the top and exits from the bottom. When the hydraulic system is operating, the control rod determines the piston's position, including the bottom dead center, top dead center, and any axial position of the hydraulic cylinder, and the hydraulic system automatically presses the piston to move it toward the set position. As the piston moves, it rotates the bolt, which in turn rotates the follower valve core in the deflected direction relative to the indicator valve core. When the piston reaches the position set by the indicator valve core, the follower valve core automatically closes the upper and lower oil ports on the valve body, automatically connecting the oil supply and discharge ports on the valve body to unload the hydraulic system.

[0017] In addition, if an internal leak occurs in the hydraulic cylinder and the piston deviates from its installed position, the bolt converts the movement of the piston into the rotation of the follower valve core, which causes the follower valve core to deflect relative to the command valve core. The rotation of the follower valve core closes the unloading oil passage formed with the command valve core, automatically connecting the upper and lower oil ports in the valve body and pressing the piston for compensating displacement. When the piston returns to the position installed by the command valve core, the follower valve core closes the upper and lower oil ports again, connecting the oil supply port and oil discharge port in the valve body for unloading, thereby realizing automatic displacement compensation of the system and improving the reliability of the underwater control system.

[0018] 4. To ensure the stable operation of the system and enhance the safety of the system, the present invention provides an overflow valve at the oil supply port to regulate the system operating pressure and ensure the safe operation of the system, and the overflow port is connected to the oil discharge port. To ensure that the overflow valve and pipeline can withstand the seabed pressure in deepwater and operate reliably, the present invention provides an overflow valve and oil pipe within the valve body.

[0019] 5. In order to ensure that the movement of the piston is linearly related to the rotation of the follower valve core and improve the stability and control accuracy of the system, the present invention installs the bolt and piston as a multi-head ball screw.

[0020] 6. When the control valve is unloading, the upper and lower oil ports are closed to ensure that the M and N holes on the follower valve core of the present invention can be completely covered by the radial connection points of the C and D holes on the command valve core, and the radial angles of the A, B, C, and D holes are maximized. To further improve the system response accuracy, the present invention sets the arc angle of the arc holes to 150-160°. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic layout diagram of the overall structure of the deep-sea mining mixed transportation system of the present invention. [Figure 2] FIG. 2 is an enlarged schematic diagram of a relay station A04 in the first embodiment. [Figure 3] 3 is an enlarged front view of the automatically controlled hydraulic cylinder 5 in FIG. 2 after being rotated clockwise by 90°. FIG. [Figure 4] FIG. 4 is a top view of FIG. [Figure 5] FIG. 5 is an enlarged cross-sectional view of AA in FIG. [Figure 6] FIG. 4 is an enlarged perspective view of a valve core sleeve 511 in FIG. 3. [Figure 7] FIG. 4 is an enlarged perspective view of a valve core shaft 512 in FIG. 3. [Figure 8] FIG. 4 is an enlarged perspective view of a follower valve core 505 in FIG. 3. [Figure 9] FIG. 9 is a perspective view of FIG. 8 after being rotated. [Figure 10] FIG. 10 is an enlarged schematic view of a relay station in the second embodiment. [Figure 11] FIG. 11 is an enlarged schematic view of a relay station in a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to make the object and technical solution of the present invention more apparent, the present invention will be further described below with reference to the drawings and examples.

[0023] Those skilled in the art will understand that unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. [Example]

[0024] As shown in Figure 1, the deep-sea mining mixed transportation system of the present invention is installed between a mother ship A01 on the water surface and an ore material stack A07 on the deep seabed, and includes a hose A06, a transfer station A04, and a lift hard pipe A02 arranged in sequence. A hose pump A05 is attached to the hose A06, and a mixed-flow pump A03 is attached to the lift hard pipe A02. The inlet of the hose A06 is located at the ore material stack A07, and the outlet of the lift hard pipe A02 is connected to the mother ship A01. The hose pump A05 operates to transport ore from the ore material stack A07 to the transfer station A04 through the hose A06. The outlet of the transfer station A04 is located at the bottom of the transfer station A04 and connected to the inlet of the hard pipe A02. The hard pipe A02 has an inlet at the bottom and an outlet extending upward to the mother ship A01. The mixed flow pump A03 operates to lift the ore material at the transfer station A04 up to the uppermost mother ship A01 via the lift hard pipe A02.

[0025] As shown in Figure 2, the transfer station A04 has a bunker 1, which is funnel-shaped and larger at the top and smaller at the bottom. The bunker 1 has an inlet at its top, which corresponds to the outlet of the hose A06 and receives the ore transported by the hose A06. The bunker 1 has a funnel port 11 at its bottom, to which a flange 4 is fixedly connected using screws from bottom to top. The flange 4 is a one-stage bushing, smaller at the top and larger at the bottom, and its upper journal is a position-regulating journal that engages the funnel port 11. A sealing tank 41 is installed in the flange inner hole of the flange 4, and a wool felt filler is installed in the sealing tank 41. An ore material control tube 3 is installed in the axial hole of the flange 4. The ore material control cylinder 3 has a hollow cylindrical structure, and the ore material supply pipe 2 is inserted into the ore material control cylinder 3 with a gap between them and the coaxial center. In this way, the ore material control cylinder 3 is fitted onto the ore material supply pipe 2 and can move up and down along the axial direction. The ore material supply pipe 2 extends upward through the ore material control cylinder 3 into the bunker 1, and the lower end of the ore material supply pipe 2 protrudes from the lower end of the ore material control cylinder 3 and is fixedly connected to the lift hard pipe A02. The central axes of the bunker 1, flange 4, sealed tank 41, ore material control cylinder 3 and ore material supply pipe 2 are collinear.

[0026] A plurality of ore material supply inlet meshes 22 are provided on a portion of the side wall of the ore material supply pipe 2 extending into the bunker 1, and the ore material supply inlet meshes 22 are spirally distributed on the upper part of the ore material supply pipe 2. The hole size of the ore material supply inlet meshes 22 is designed according to the size of the ore material to be transported. The function of the ore material supply inlet meshes 22 is to transport the ore material to the ore material supply pipe 2, and the ore material in the bunker 1 enters the ore material supply pipe 2. As the ore material control tube 3 moves upward, some of the ore material supply inlet meshes 22 are positioned inside the ore material control tube 3, and the higher the ore material control tube 3 moves upward, the more ore material supply inlet meshes 22 enter the ore material control tube 3.

[0027] A cone 21 is provided at the upper end of the ore material supply pipe 2, that is, the top of the ore material supply pipe 2 in the bunker 1 is closed by the cone 21, the purpose of which is to break the arch structure and prevent the ore material from forming an arch structure at the upper end of the ore material supply inlet mesh 22 and affecting the conveying efficiency of the lift hard pipe A02.

[0028] An ore material removal ring 35 is fixedly connected to the upper end surface of the ore material control cylinder 3 by screws. The ore material removal ring 35 has a small outer diameter at the top and a larger outer diameter at the bottom, giving it a truncated cone shape with a through-hole in the center. The ore material supply pipe 2 passes through a corresponding through-hole in the ore material removal ring 35 and is loosely fitted into the ore material removal ring 35. When the ore material control cylinder 3 moves up and down, the ore material removal ring 35 also slides smoothly, reducing the upward resistance of the ore material control cylinder 3 and ensuring the strength of the ore material removal port at the upper end of the ore material removal ring 35. In this way, the ore material removal ring 35 uses its upper end to press and shear the ore particles stuck in the ore material supply port mesh 22. The ore material removal ring 35 constantly slides up and down the ore material supply pipe 2, while preventing the ore material from forming an arch structure around the ore material supply inlet mesh 22, ensuring that the ore material can be transported continuously and stably to the ore material supply pipe 2 through the ore material supply inlet mesh 22.

[0029] A guide flange 36 is provided at the lower end of the ore material control cylinder 3, and the guide flange 36 is fixedly connected to the ore material control cylinder 3 by screws. In this way, the lower end of the ore material control cylinder 3 is engaged with the ore material supply pipe 2 by the guide flange 36, and the guide flange 36 and the ore material supply pipe 2 are loosely fitted together, which ensures that the ore material control cylinder 3 can move up and down smoothly even though it has only one radial force point and will not self-lock.

[0030] At least one process notch is provided on the flange edge of the guide flange 36, and at least one seawater inlet 37 is further provided on the guide flange 36. In this way, the inside of the ore material control cylinder 3 is connected to seawater, and the seawater in the ore material control cylinder 3 passes through the ore material supply port mesh 22 and enters the ore material supply pipe 2, so that the seawater inlet 37 provides seawater to the ore material supply port mesh 22 entering the ore material control cylinder 3.

[0031] A notch 38 is provided on the edge of the guide flange 36 to provide a space for connecting the ore material control cylinder 3 and the automatically controlled hydraulic cylinder 5. The automatically controlled hydraulic cylinder 5 is provided below the ore material control cylinder 3, located beside the ore material supply pipe 2, and fixedly connected to the side wall of the ore material supply pipe 2. The central axis of the automatically controlled hydraulic cylinder 5 is parallel to the central axes of the ore material control cylinder 3 and the ore material supply pipe 2. The automatically controlled hydraulic cylinder 5 has a piston end at its upper end which is hingedly connected to the lower end of the ore material control cylinder 3, and moves the ore material control cylinder 3 up and down in conjunction with the piston end.

[0032] When the ore material control cylinder 3 moves up in conjunction with the automatically controlled hydraulic cylinder 5, the ore material removal ring 35 seals the funnel mouth 11 of the bunker 1 when crushing the ore material or breaking the arch structure, that is, the ore material control cylinder 3 is sealed and connected to the funnel mouth 11 to prevent the ore material in the bunker 1 from falling into the sea, and on the other hand, the ore material supply port mesh 22 in the ore material supply pipe 2 is separated into upper and lower parts, thereby solving the adjustment of the ore slurry concentration in the ore material supply pipe 2.

[0033] The ore material supply inlet meshes 22 are spirally distributed on a portion of the side wall of the ore material supply pipe 2, and two adjacent ore material supply inlet meshes 22 that rise spirally are equally spaced apart. In this way, when the ore material removal ring 35 presses and shears the ore particles stuck in the ore material supply inlet meshes 22, the number of ore material supply inlet meshes 22 that are sheared simultaneously on each cross section of the ore material supply pipe 2 is relatively uniform, and the force received by the automatically controlled hydraulic cylinder 5 is also uniform.

[0034] As shown in Figures 3, 4, 5, 6, 7, 8, and 9, the automatically controlled hydraulic cylinder 5 includes a control valve 52, a hydraulic cylinder 513, and a piston rod 501, all of which are collinear. The automatically controlled hydraulic cylinder 5 receives hydraulic oil from the hydraulic station of the deep-sea mining mixed transport system. The hydraulic cylinder 513 is a single-acting cylinder sealed by an upper end cover. The control valve 52 is located directly below the hydraulic cylinder 513 and is fixedly and sealingly connected to the lower end of the hydraulic cylinder 513. The piston rod 501 extends from the upper end cover of the hydraulic cylinder 513 to the outside of the cylinder body. The upper end of the piston rod 501 is a piston rod hinge 51, which extends upward outside the hydraulic cylinder 513. The lower end of the ore material control tube 3 is connected to the piston rod hinge 51. The piston rod 501 moves the ore material control tube 3 via the piston rod hinge 51.

[0035] The control valve 52 is fixedly and sealingly connected to the lower end of the hydraulic cylinder 513, and includes a valve body 530, an indicator valve core 53, and a follower valve core 505. The indicator valve core 53 includes a valve core sleeve 511 and a valve core shaft 512, the central axes of which are all collinear. The outer diameter of the valve body 530 is the same as that of the hydraulic cylinder 513. The lower end of the indicator valve core 53 protrudes sealingly downward from the valve body 530 and is fixedly connected to a control rod 508, which is the lowest part of the entire automatic control hydraulic cylinder 5.

[0036] A sealing end cover is provided on the lower end surface of the valve body 530, and the lower end cover of the valve body 530 and the upper end cover of the hydraulic cylinder 513 are fixedly connected to the side wall of the ore material supply pipe 2 to fix the entire automatically controlled hydraulic cylinder 5. The lower end cover of the valve body 530 and the upper end cover of the hydraulic cylinder 513 are both formed with fixing plates 507 extending therefrom, which are mounting legs for fixing the automatically controlled hydraulic cylinder 5 to the ore material supply pipe 2, and the fixing plates 507 fix the automatically controlled hydraulic cylinder 5 to the ore material supply pipe 2.

[0037] The valve body 530 has an outer shape of a step shaft, with a larger outer diameter at the bottom and a smaller outer diameter at the top, and the step surface is in close contact with the lower end surface of the hydraulic cylinder 513. The outer diameter of the lower step large shaft is the same as the outer diameter of the hydraulic cylinder 513, and the outer diameter of the upper step small shaft is the same as the inner diameter of the hydraulic cylinder 513. The valve body 530 extends into the hydraulic cylinder 513 and is fixedly and sealed to the inner wall of the hydraulic cylinder 513, and does not contact the piston 502 in the axial direction. The space between the valve body 530 and the piston 502 forms a rodless cavity of the hydraulic cylinder 513.

[0038] A valve core mounting hole is provided in the center of the valve body 530. The valve core mounting hole is a one-stage hole that penetrates the valve body 530 from top to bottom, with a larger diameter at the bottom and a smaller diameter at the top. The valve core sleeve 511 is fitted into the large hole of the valve core mounting hole, and the upper part of the follow-up valve core 505 is fitted into the upper small hole of the valve core mounting hole.

[0039] The angle between the large diameter of the valve core mounting hole and the step plane is oblique, so that the valve core mounting hole is surrounded by the step plane by the valve body 530, the valve core sleeve 511 and the follower valve core 505, forming a sealed space 535.

[0040] A first oil port a is opened in the axial direction at the top of the valve body 530, and a second oil port b, an oil supply port 531, and an oil discharge port 532 are opened on the side wall of the valve body 530. The first oil port a connects the sealed space 535 with the rodless cavity of the hydraulic cylinder 513, and the second oil port b connects with the rod-equipped cavity of the hydraulic cylinder 513.

[0041] 5, an overflow valve 560 is connected between an oil supply port 531 and an oil discharge port 532. The overflow valve 560 includes a steel ball 561, a compression spring 562, a pressure adjusting screw 563, and an overflow port 564. A hole communicating with the oil supply port 531 is formed in the valve body 530, and the steel ball 561 and the compression spring 562 are attached to this hole. The steel ball 561 is adjacent to the oil supply port 531. One end of the compression spring 562 is connected to the steel ball 561 and the other end is connected to the pressure adjusting screw 563. The overflow port 564 is connected to the oil discharge port 532. The pressure adjusting screw 563 adjusts the length of the compression spring 562 to adjust the pressure that the steel ball 561 applies to the oil supply port 531.

[0042] Below the oil discharge port 532 of the valve body 530, a first radial screw hole 533 is opened in the same horizontal cross section, and a first position control screw 520 is provided in the first screw hole 533, and the first position control screw 520 controls the valve core sleeve 511 radially inward.

[0043] 6, the valve core sleeve 511 is cylindrical and has a small outer diameter at the bottom and a large outer diameter at the top, forming a stage bushing with a small bottom and a large top. A first inner hole 540 is provided at the center of the top. The first inner hole 540 is a stage-one blind hole with a small bottom and a large top. The valve core shaft 512 is a stage-one shaft with a small bottom and a large top. The follower valve core 505 and the valve core shaft 512 are sequentially and coaxially fitted into the first inner hole 540 from the outside to the inside. Specifically, the lower part of the follower valve core 505 is fitted into the first inner hole 540, and the upper part of the valve core shaft 512 is fitted into the inner hole of the follower valve core 505.

[0044] The upper sidewall of the valve core sleeve 511 has four arc-shaped holes of the same outer diameter that penetrate the sidewall. The arc-shaped holes have a radial central angle of 150° to 160° and are divided into upper and lower groups. Each group consists of two arc-shaped holes uniformly distributed on the same radial cross section. The two arc-shaped holes in each group are radially opposite each other, and the arc-shaped holes in the two groups are parallel to the axial direction and are offset 90° from the radial centerline. The two arc-shaped holes in the lower group are designated as hole A 543 and hole B 544, while the two arc-shaped holes in the upper group are designated as hole C 546 and hole D 545. The oil supply port 531 is connected to hole B 544, and the oil discharge port 532 is connected to hole A 543. Hole D 545 is connected to the second oil port b.

[0045] A groove E 541 is radially provided on the step surface of the valve core sleeve 511 below the hole A 543. The groove E 541 has the same radial origin, direction, and arc degree as the hole A 543, and is axially parallel to the hole A 543. A first screw hole 533 is formed in the valve body 530, and the first position control screw 520 is engaged with the groove E 541 therein to limit the rotation angle of the valve core sleeve 511.

[0046] An axial oil hole K 547 is provided between hole C 546 and the upper end surface of the valve core sleeve 511. A second radial screw hole 542 and a fixing hole for the first spring pin 509 are provided in this order below hole A 543 and hole B 544 in a symmetrical cross section of the valve core sleeve 511 along the axial center of hole D 545 between hole A 543 and hole B 544.

[0047] An F-type recess 548 is provided in the center of the upper part of the valve core shaft 512, and the bottom of the F-type recess 548 is a plane that exceeds the central axis of the valve core shaft 512, that is, the depth of the recess is greater than the radius of the upper part of the valve core shaft 512. The first spring pin 509 fixing hole is provided in the lower part of the valve core shaft 512, which is a vertical bisecting plane symmetrical along the axial direction of the valve core shaft 512. That is, the first spring pin 509 fixing hole is provided in both the valve core shaft 512 and the valve core sleeve 511, and the first spring pin 509 and its fixing hole Thus, the valve core shaft 512 is fixedly connected to the inside of the valve core sleeve 511 .

[0048] The follow-up valve core 505 has a one-stage cylindrical shape with a larger diameter at the bottom and a smaller diameter at the top. A second axial inner hole 555 is opened at the center of the bottom, and the upper part of the valve core shaft 512 is fitted into the second inner hole 555. That is, the upper part of the valve core shaft 512 is inserted into the lower large hole of the follow-up valve core 505, and the lower part of the valve core shaft 512 extends downward into the lower small hole of the valve core sleeve 511 and is fixed by the first elastic pin 509.

[0049] The lower outer periphery of the follower valve core 505 is fitted into the first inner hole 540 of the valve core sleeve 511. The lower side wall of the follower valve core 505 has two axial waist-shaped holes symmetrical about the central axis of the follower valve core 505, designated as M-waist-shaped hole 551 and N-waist-shaped hole 552. The length of the two waist-shaped holes corresponds to the axial distance between the two groups of circular holes in the valve core sleeve 511, and the width can be completely covered by the radial connection between the two ends of the C hole 546 and the D hole 545 in the valve core sleeve 511. When the control valve 52 is in its initial state, the M-waisted hole 551 and the N-waisted hole 552 of the follower valve core 505 are located at the two connection points between the C-hole 546 and the D-hole 545, blocking the communication between the B-hole 544 and the A-hole 543 and the C-hole 546 and the D-hole 545. This cuts off the oil passage between the first oil port a and the second oil port b, stopping the oil supply and discharge of the hydraulic cylinder 513. This ensures that the first oil port a and the second oil port b are closed when the control valve 52 is unloaded.

[0050] A G groove 553 is radially provided at the lower end of the follower valve core 505, and the G groove 553 is located midway between the M waist-shaped hole 551 and the N waist-shaped hole 552, with its radial angle equal to or greater than the E groove 541. The G groove 553 of the follower valve core 505 engages the second position-limiting screw 510 in the second screw hole 542 of the valve core sleeve 511, thereby limiting the rotation range of the follower valve core 505 on the valve core sleeve 511.

[0051] The upper part of the follower valve core 505 is engaged with the valve core mounting hole of the valve body 530, and an axial H-shaped groove 554 is provided on the upper shaft of the follower valve core 505, which is fixedly connected to the lower end of the bolt 503 via a second elastic pin 504. The bolt 503 is provided with two symmetrical arc-shaped spiral grooves, and two radially symmetrical steel balls are provided in the inner hole of the piston 502. The two symmetrical arc-shaped spiral grooves and the two radially symmetrical steel balls on the piston 502 work together, and when the piston 502 moves up and down, the steel balls act on the bolt 503 along the arc-shaped spiral grooves, converting the axial movement of the piston 502 into a rotation angle of the bolt 503. The steel balls reduce the friction between the bolt 503 and the piston 502. The length of the bolt 503 matches the length of the hydraulic cylinder 513. The piston rod 501 is a hollow rod, and the bolt 503 can enter the hollow part of the piston rod 501 by the piston 502. The piston 502 moves from the lower end to the upper end of the hydraulic cylinder 513, and the rotation angle of the bolt 503 during the entire stroke of the piston 502 is 150° to 160°. The length of the bolt is equal to or greater than the axial distance of the hydraulic cylinder 513.

[0052] After the indicator valve core 53 and the follower valve core 505 are installed on the valve body 530, the bend in the step surface of the valve core mounting hole in the valve body 530 is beveled, and the cross section between this bevel, the outer diameter of the follower valve core 505, and the upper end surface of the valve core sleeve 511 forms a triangular sealed space 535, which communicates with the K oil hole 547 and the first oil hole a.

[0053] The follower valve core 505 cooperates with the indicator valve core 53 and is fitted between the valve core sleeve 511 and the valve core shaft 512. The upper end of the follower valve core 505 penetrates the upper end of the valve disc 530 and is connected to a bolt, forming a spiral pair with the piston 502. By rotating the control rod 508, the position of the indicator valve core 53 relative to the valve disc 530 is changed. The follower valve core 505 automatically selects the communication between the oil supply and oil discharge directions of both ends of the hydraulic cylinder 513 according to the deflection direction relative to the indicator valve core 53, driving the piston 502 to move upward or downward. As a result, the piston 502 rotates the follower valve core 505 in the deflection direction set by the indicator valve core 53 via the bolt, thereby setting the axial position where the piston 502 stops in the hydraulic cylinder 513. When the piston 502 reaches the installation position, the follower valve core 505 automatically closes the first oil port a and the second oil port b at both ends of the hydraulic cylinder 513, and at the same time, connects the oil supply port 531 and the oil discharge port 532 to unload the cylinder.

[0054] The automatically controlled hydraulic cylinder 5 has three operating states.

[0055] 1. The piston rod 501 retracts.

[0056] When the control rod 508 is rotated by an external general-purpose driving device (the general-purpose driving device is not shown), viewing from bottom to top, when the driving device drives the control rod 508 to rotate counterclockwise, the valve core shaft 512 of the indicator valve core 53 rotates synchronously with the valve core sleeve 511, causing the indicator valve core 53 to rotate counterclockwise relative to the follower valve core 505. As the indicator valve core 53 rotates from its initial position, the positions of the M-waisted hole 551 and the N-waisted hole 552 in the follower valve core 505 and the radial positions of the C-hole 546 and D-hole 545 in the valve core sleeve 511 change, and the follower valve core 505 no longer blocks the communication between the B-hole 544 / A-hole 543 and the C-hole 546 / D-hole 545, instead connecting the B-hole 544 / A-hole 543 and the C-hole 546 / D-hole 545. At this time, the hydraulic oil entering through the oil supply port 531 flows sequentially through the B hole 544 in the valve core sleeve 511, the M-waisted hole 551 in the follower valve core 505, the D hole 545 in the valve core sleeve 511, the second oil port b, and the rod-equipped cavity of the hydraulic cylinder 513. At the same time, the hydraulic oil in the rodless cavity of the hydraulic cylinder 513 flows sequentially through the first oil port a, the K oil port 547 in the valve core sleeve 511, the C hole 546, the N-waisted hole 552 in the follower valve core 505, and the A hole 543 in the valve core sleeve 511, and finally is discharged from the oil discharge port 532. This presses the piston 502, moving it from top to bottom, and the piston rod 501 contracts, moving the ore material control tube 3 downward.

[0057] 2. The piston rod 501 extends.

[0058] By rotating the control rod 508 clockwise, the hydraulic oil entering through the oil supply port 531 flows sequentially through the B hole 554 in the valve core sleeve 511, the M-waisted hole 551 in the follower valve core 505, the C hole 546 in the valve core sleeve 511, the K oil hole 547, the first oil port a, and the rodless cavity of the hydraulic cylinder 513. At the same time, the hydraulic oil in the rod-equipped cavity of the hydraulic cylinder 513 flows sequentially through the second oil port b, the D hole 545 in the valve core sleeve 511, the N-waisted hole 552 in the follower valve core 505, and the A hole 543 in the valve core sleeve 511, and finally is discharged from the oil discharge port 532. This pushes the piston 502 upward, causing the piston rod 501 to extend and move the ore material control tube 3 upward.

[0059] 3. The piston rod 501 holds its initial position.

[0060] The M-waist hole 551 and N-waist hole 552 in the follower valve core 505 are located at the connection between the C-hole 546 and the D-hole 545, blocking the communication between the B-hole 544 and the A-hole 543 and the C-hole 546 and the D-hole 545, i.e., the oil passage between the first oil port a and the second oil port b is cut off, i.e., the flow of hydraulic oil to the upper and lower ends of the hydraulic cylinder 513 is stopped, maintaining pressure. The unloading process of the hydraulic system involves oil being supplied through the oil supply port 531, and the hydraulic oil sequentially flows through the B-hole 544, the M-waist hole 551, the F-tank 548, the N-waist hole 552, and the A-hole 543, before being discharged through the oil discharge port 532.

[0061] When the piston rod 501 presses the ore material control tube 3 upward, the ore material removal ring 35 presses and shears the ore particles stuck in the ore material supply inlet mesh 22, cleaning the ore material supply inlet mesh 22. At the same time, the movement of the ore material control tube 3 stirs the ore particles around the ore material supply inlet mesh 22, thereby crushing the ore particles in an arch-like structure around the ore material supply inlet mesh 22. Next, the piston rod 501 of the automatically controlled hydraulic cylinder 5 is moved to pull the ore material control tube 3 downward and return it to its original position. Therefore, by moving the automatically controlled hydraulic cylinder 5 to move the ore material control tube 3 up and down in an orderly manner, the daily cleaning of the ore material supply pipe 2 and the arch-like crushing can be completed. By controlling the stop position of the piston rod 501 of the automatic control hydraulic cylinder, the ratio of the number of ore material supply inlet meshes 22 in the bunker 1 to the number of ore material supply inlet meshes 22 in the ore material control tube 3 can be set, thereby achieving the purpose of adjusting the solid-liquid ratio of the ore slurry. [Example]

[0062] As shown in Figure 10, the lower part of the guide flange 36 is located on the ore material supply pipe 2, and two automatically controlled hydraulic cylinders 5 are fixedly connected to it so as to be symmetrical in the radial direction. The two automatically controlled hydraulic cylinders 5 have the same structure and are both parallel to the central axis of the ore material supply pipe 2, which is different from Example 1, but the connection method between each automatically controlled hydraulic cylinder 5 and the ore material control tube 3 is the same as Example 1. The other features are the same as Example 1. The two automatically controlled hydraulic cylinders 5 operate synchronously, which can provide a greater acting force and balance the force received by the ore material control tube 3, allowing for more stable movement. [Example]

[0063] As shown in Figure 11, an ore material control cylinder assembly 6 is used instead of the ore material control cylinder 3 in Figure 2, and the ore material control cylinder assembly 6 consists of, from top to bottom, a pipe cone ring 31, a spiral scraper 32, a partition plate 34, and an ore material partition cylinder 33. The ore material supply pipe 2 is inserted into the ore material control cylinder assembly 6 with a gap between them. At least one automatically controlled hydraulic cylinder 5 is fixedly connected to the ore material supply pipe 2 in the axial direction parallel to the ore material supply pipe 2, and the hydraulic cylinder of the automatically controlled hydraulic cylinder 5 is a single-acting hydraulic cylinder, and the tip of the upper piston rod of the automatically controlled hydraulic cylinder 5 is hingedly connected to the bottom of the ore material partition cylinder 33.

[0064] There is a large gap between the conical ring 31 and the ore material supply pipe 2, and the pitch and lead of the spiral scraper 32 and the pitch and lead of the ore material supply inlet mesh 22 in the ore material supply pipe 2 are in an integer multiple relationship, so that the spiral scraper 32 and the ore material supply pipe 2 are clearance-fitted. A partition plate 34 at the upper end of the ore material partition cylinder 33 and the ore material supply pipe 2 are clearance-fitted, and a sealing tank 41 is provided on the engagement surface of the partition plate 34 that cooperates with the ore material supply pipe 2, and a filler is provided in the sealing tank 41.

[0065] When the automatically controlled hydraulic cylinder 5 is operated to press the ore material control tube assembly 6 and move it up and down along the ore material supply pipe 2 as required, firstly, it can crush and remove the ore material stuck in the ore material supply inlet mesh 22 and crush the arch structure of the ore material around the ore material supply inlet mesh 22. Because the spiral scraper 32 is loosely fitted into the ore material supply pipe 2, by moving the spiral scraper 32 up and down, the spiral scraper 32 presses and shears the ore material stuck in the ore material supply inlet mesh 22, crushing the ore material stuck in the ore material supply inlet mesh 22 and completing the cleaning of the ore material supply inlet mesh. During the cleaning process of the ore material feed inlet mesh 22, the spiral scraper 32 stirs the ore material around the ore material feed inlet mesh 22, thereby breaking up and removing the arch structure of the ore material around the ore material feed inlet mesh 22. This ensures that the ore material can be transported continuously and stably to the lift hard pipe via the ore material feed inlet mesh 22. Secondly, the solid-liquid ratio of the ore slurry can be adjusted. The position where the piston rod of the automatically controlled hydraulic cylinder 5 stops can be freely set, and a sealing structure is provided between the partition plate 34 of the ore material partition tube 33 and the ore material feed pipe 2, so that the ore material feed inlet mesh 22 on the ore material feed pipe 2 can be separated and allocated above and below by the ore material partition tube 33. The upper ore material supply inlet mesh 22 transports ore material to the ore material supply pipe in the bunker 1, and the lower ore material supply inlet mesh 22 transports seawater to the ore material supply pipe 2 through the ore material partition tube 33. Therefore, by adjusting the stopping position of the ore material partition tube 33, the solid-liquid ratio of the ore slurry can be adjusted. Third, the total amount of ore material supplied to the ore material supply pipe can be controlled. Because the pitch and lead of the spiral scraper and the pitch and lead of the ore material supply inlet mesh in the ore material supply pipe are in an integer multiple relationship, the stopping position of the piston rod of the automatically controlled hydraulic cylinder can be set and the spiral scraper can effectively shield the ore material supply inlet mesh, thereby controlling the amount of ore material and seawater supplied to some of the ore material supply inlet mesh, thereby achieving the purpose of controlling the total amount of ore material supplied to the ore material supply pipe.

[0066] Fourth, the clearance fit between the spiral scraper and the ore material supply pipe allows the ore material partition cylinder to be guided by the ore material supply pipe, so that the ore material partition cylinder can move smoothly through the ore material supply pipe and prevent the ore material partition cylinder from getting stuck or self-locking in the ore material supply pipe.

[0067] In addition, by using a spiral scraper in the ore material supply inlet mesh, the spiral scraper can achieve self-cleaning. Because the contact area between the spiral scraper and the ore material supply pipe at the same cross section is very small, simply moving the ore material partition tube a short distance in the axial direction presses the loose ore particles between the spiral scraper and the ore material supply pipe, causing them to break up and fall, thereby achieving self-cleaning. Meanwhile, the spiral component force of the spiral scraper causes the spiral scraper to move up and down the bunker, naturally spiraling and dispersing the ore material in the bunker, reducing the resistance to the up and down movement of the automatically controlled hydraulic cylinder.

[0068] As shown in Figure 11, the second ore material control cylinder 6 is fixedly connected from top to bottom with a conical ring 31, a spiral scraper 32, a partition plate 34, and an ore material partition cylinder 33. The conical ring 31 has a small outer diameter at the top and a large outer diameter at the bottom, which reduces the upward resistance of the second ore material control cylinder 6. There is a large gap between the conical ring 31 and the ore material supply pipe 2, so they cannot be fitted together. The function of the conical ring 31 is to connect the spiral scraper 32 and increase the rigidity of the spiral scraper 32.

[0069] The spiral scraper 32 is loosely fitted into the ore material supply pipe 2. The purpose of installing the spiral scraper 32 spirally is to reduce the contact area between the same cross section and the ore material supply pipe 2, so that the gap between the spiral scraper 32 and the ore material supply pipe 2 of the same cross section is simultaneously densely filled with fine ore material, preventing excessive resistance when the second ore material control tube 6 moves up and down, which increases wear on the ore material supply mechanism. In addition, the vertical movement of the spiral scraper 32 presses and shears the ore material stuck in the ore material supply inlet mesh 22, thereby crushing the ore material blocking the ore material supply inlet mesh 22. In addition, the pitch and lead of the spiral scraper 32 and the pitch and lead of the ore material supply inlet mesh 22 in the ore material supply pipe 2 are in an integer multiple relationship, and in this embodiment, the multiple is selected to be 1. Therefore, the spiral scraper 32 can cover part or all of the ore material supply inlet mesh 22, reducing the ore material supply area of ​​the ore material supply inlet mesh 22 and decreasing the ore material supply amount through the ore material supply pipe. The clearance fit between the spiral scraper 32 and the ore material supply pipe 2 increases the guide length between the second ore material control tube 6 and the ore material supply pipe 2, preventing the second ore material control tube 6 from stagnation or self-locking in the ore material supply pipe 2 and allowing the second ore material control tube 6 to move smoothly through the ore material supply pipe 2. The spiral scraper 32 slides up and down the ore material supply pipe 2 continuously and systematically, preventing the ore material from forming an arch structure at the ore material supply inlet mesh 22, thereby ensuring that the ore material can be transported continuously and stably to the ore material supply pipe 2 via the ore material supply inlet mesh 22.

[0070] The partition plate 34 is annular and is installed at the upper end of the ore material partition cylinder 33, forming one piece with the ore material partition cylinder 33. A sealed tank is installed on the inner periphery of the partition plate 34, and wool felt filler is filled in the sealed tank, which is loosely fitted into the ore material supply pipe 2. The outer periphery of the ore material partition cylinder 33 is loosely fitted into the inner periphery of the flange 4, and the lower part is hingedly connected to the piston rod 501 of the automatically controlled hydraulic cylinder 5 via a hinge 51. The automatically controlled hydraulic cylinder 5 is fixedly connected to the ore material supply pipe 2, and its axis is parallel to the axis of the ore material supply pipe 2. There may be multiple automatically controlled hydraulic cylinders 5, which are symmetrically distributed along the ore material supply pipe 2. In this embodiment, one is installed. The function of the partition plate 34 and the ore material partition tube 33 is to prevent the ore material in the bunker 1 from falling to the seabed when the automatically controlled hydraulic cylinder 5 moves up, and on the other hand, to isolate part of the ore material supply inlet mesh 22 in the ore material supply pipe 2 from the bunker 1, thereby adjusting the ore slurry concentration. [Explanation of symbols]

[0071] A01 Mothership A02 Lift Hard Pipe A03 Mixed flow pump A04 Relay Station A05 Hose pump A06 Hose A07 Ore Stack a 1st oil port b 2nd oil port 1. Bunker 2. Ore material supply pipe 3 Ore Material Control Cylinder 5 Automatically controlled hydraulic cylinder 6. Second Ore Material Control Cylinder 11 Funnel opening 21 Tube cone 22 Ore material supply port mesh 31 Conical Ring 32 Spiral scraper 33 Ore material partition tube 34 Partition 35 Ore material removal ring 36 Guide flange 4 flanges 41 Sealed tank 51 Piston rod hinge 52 Control valve 53 Indicator valve core 501 Piston rod 502 Piston 503 volts 504 Second elastic pin 505 Follow-up valve core 507 Fixed plate 508 Control Rod 509 First Elastic Pin 510 Second position control screw 511 Valve core sleeve 512 Valve core shaft 513 Hydraulic Cylinder 530 Valve body 531 Oil supply port 532 Oil outlet 533 First screw hole 535 Closed space 540 First Inner Hole 541 E tank 542 Second screw hole 543 A hole 544 B hole 545 D hole 546 C hole 547 K oil hole 548 F tank 551 M waist-shaped hole 552 N waist-shaped hole 553 G tank 554 H tank 555 Second inner hole

Claims

1. A deep-sea mining mixed transportation system comprising a hose (A06), a relay station (A04) and a lift hard pipe (A02) arranged in sequence, a hose pump (A05) attached to the hose (A06), a mixed flow pump (A03) attached to the lift hard pipe (A02), an inlet of the hose (A06) located in an ore material stack (A07), and an outlet of the lift hard pipe (A02) connected to a mother ship (A01), The relay station (A04) has one bunker (1), the bunker (1) has an entrance at the top end and an ore material control cylinder (3) sealed at the bottom end, an ore material supply pipe (2) is inserted into the ore material control cylinder (3) with a gap between them, the ore material supply pipe (2) extends upward through the ore material control cylinder (3) into the bunker (1), and the bottom end of the ore material supply pipe (2) protrudes from the ore material control cylinder (3) and serves as a lift pipe. The ore material supply pipe (2) is fixedly connected to the hard pipe (A02) and extends into the bunker (1). A plurality of spirally distributed ore material supply inlet meshes (22) are opened on the side wall of the ore material supply pipe (2). The ore material supply inlet meshes (22) are spirally distributed on the upper part of the ore material supply pipe (2). A guide flange (36) is fixedly connected to the lower end of the ore material control cylinder (3). A seawater inlet (37) is provided in the guide flange (36) to allow seawater to flow in. An automatically controlled hydraulic cylinder (5) is provided below the ore material control cylinder (3) and connected to the side wall of the ore material supply pipe (2). The automatically controlled hydraulic cylinder (5) has a piston end at the upper end and is hingedly connected to the lower end of the ore material control cylinder (3), so that the ore material control cylinder (3) can be moved up and down in conjunction with the piston end. The automatically controlled hydraulic cylinder (5) includes a control valve (52), a hydraulic cylinder (513), and a piston rod (501). The control valve (52) is connected to the lower end of the hydraulic cylinder (513) in a sealing manner directly below the hydraulic cylinder (513). A first oil port (a) is opened in the axial direction at the top of the valve body (530). A second oil port (b), an oil supply port (531), and an oil discharge port (532) are opened in the side wall of the valve body (530). The first oil port (a) communicates with a rodless cavity of the hydraulic cylinder (513), and the second oil port (b) communicates with a rod-equipped cavity of the hydraulic cylinder (513). The control valve (52) includes a valve body (530), an indicator valve core (53), and a follower valve core (505). The indicator valve core (53) includes a valve core sleeve (511) and a valve core shaft (512). The indicator valve core (53) has a lower end that protrudes downward and sealingly outward from the valve body (530) and is fixedly connected to the control rod (508). The follower valve core (505) is fitted between the valve core sleeve (511) and the valve core shaft (512) and has an upper end that protrudes from the upper end of the valve body (530) and is connected to a bolt (503). The bolt (503) and the piston (502) in the hydraulic cylinder (513) form a spiral pair. The control rod (508) is rotated to change the position of the indicator valve core (53) relative to the valve body (530), and the follower valve core (505) is deflected relative to the indicator valve core (53) to connect the oil supply and oil discharge directions at both ends of the hydraulic cylinder (513). This drives the piston (502) to move up and down, and the follower valve core (505) is rotated in the deflection direction set by the indicator valve core (53) in conjunction with the control rod (508), and the piston (502) is set at the axial position where it stops in the hydraulic cylinder (513). When the piston (502) reaches the set position, the follower valve core (505) automatically closes the first and second oil ports (a, b), connecting the oil supply port (531) and the oil discharge port (532). An overflow valve (560) is connected between the oil supply port (531) and the oil discharge port (532). The overflow valve (560) includes a steel ball (561), a compression spring (562), a pressure adjusting screw (563), and an overflow port (564). A hole communicating with the oil supply port (531) is formed in the valve body (530). The steel ball (561) and the compression spring (562) are attached to the hole. The steel ball (561) is located close to the oil supply port (531). One end of the compression spring (562) is connected to the steel ball (561) and the other end is connected to the pressure adjusting screw (563). The overflow port (564) is connected to the oil discharge port (532). The pressure adjusting screw (563) adjusts the length of the compression spring (562) to adjust the pressure applied by the steel ball (561) to the oil supply port (531). A deep-sea mining mixed transportation system, characterized in that a sealing end cover is provided on the lower end surface of the valve body (530), and a fixing plate (507) is formed so that the lower end cover of the valve body (530) and the upper end cover of the hydraulic cylinder (513) are both extended, and the fixing plate (507) fixedly connects the automatically controlled hydraulic cylinder (5) to the ore material supply pipe (2).

2. A deep-sea mining mixed transportation system comprising a hose (A06), a relay station (A04) and a lift hard pipe (A02) arranged in sequence, a hose pump (A05) attached to the hose (A06), a mixed flow pump (A03) attached to the lift hard pipe (A02), an inlet of the hose (A06) located in an ore material stack (A07), and an outlet of the lift hard pipe (A02) connected to a mother ship (A01), The relay station (A04) has one bunker (1), the bunker (1) has an entrance at the top end and an ore material control cylinder (3) sealed at the bottom end, an ore material supply pipe (2) is inserted into the ore material control cylinder (3) with a gap between them, the ore material supply pipe (2) extends upward through the ore material control cylinder (3) into the bunker (1), and the bottom end of the ore material supply pipe (2) protrudes from the ore material control cylinder (3) and serves as a lift pipe. The ore material supply pipe (2) is fixedly connected to the hard pipe (A02) and extends into the bunker (1). A plurality of spirally distributed ore material supply inlet meshes (22) are opened on the side wall of the ore material supply pipe (2). The ore material supply inlet meshes (22) are spirally distributed on the upper part of the ore material supply pipe (2). A guide flange (36) is fixedly connected to the lower end of the ore material control cylinder (3). A seawater inlet (37) is provided in the guide flange (36) to allow seawater to flow in. An automatically controlled hydraulic cylinder (5) is provided below the ore material control cylinder (3) and connected to the side wall of the ore material supply pipe (2). The automatically controlled hydraulic cylinder (5) has a piston end at the upper end and is hingedly connected to the lower end of the ore material control cylinder (3), so that the ore material control cylinder (3) can be moved up and down in conjunction with the piston end. The automatically controlled hydraulic cylinder (5) includes a control valve (52), a hydraulic cylinder (513), and a piston rod (501). The control valve (52) is connected to the lower end of the hydraulic cylinder (513) in a sealing manner directly below the hydraulic cylinder (513). A first oil port (a) is opened in the axial direction at the top of the valve body (530). A second oil port (b), an oil supply port (531), and an oil discharge port (532) are opened in the side wall of the valve body (530). The first oil port (a) communicates with a rodless cavity of the hydraulic cylinder (513), and the second oil port (b) communicates with a rod-equipped cavity of the hydraulic cylinder (513). The control valve (52) includes a valve body (530), an indicator valve core (53), and a follower valve core (505). The indicator valve core (53) includes a valve core sleeve (511) and a valve core shaft (512). The indicator valve core (53) has a lower end that protrudes downward and sealingly outward from the valve body (530) and is fixedly connected to the control rod (508). The follower valve core (505) is fitted between the valve core sleeve (511) and the valve core shaft (512) and has an upper end that protrudes from the upper end of the valve body (530) and is connected to a bolt (503). The bolt (503) and the piston (502) in the hydraulic cylinder (513) form a spiral pair. The control rod (508) is rotated to change the position of the indicator valve core (53) relative to the valve body (530), and the follower valve core (505) is deflected relative to the indicator valve core (53) to connect the oil supply and oil discharge directions at both ends of the hydraulic cylinder (513). This drives the piston (502) to move up and down, and the follower valve core (505) is rotated in the deflection direction set by the indicator valve core (53) in conjunction with the control rod (508), and the piston (502) is set at the axial position where it stops in the hydraulic cylinder (513). When the piston (502) reaches the set position, the follower valve core (505) automatically closes the first and second oil ports (a, b), connecting the oil supply port (531) and the oil discharge port (532). The deep-sea mining mixed transportation system is characterized in that an ore material control cylinder assembly (6) is used instead of the ore material control cylinder (3), and the ore material control cylinder assembly (6) consists of, from top to bottom, a cone ring (31), a spiral scraper (32), a partition plate (34), and an ore material partition cylinder (33), the ore material supply pipe (2) is inserted into the ore material control cylinder assembly (6) with a gap therebetween, at least one automatically controlled hydraulic cylinder (5) axially parallel to the ore material supply pipe (2) is fixedly connected to the ore material supply pipe (2), the hydraulic cylinder of the automatically controlled hydraulic cylinder (5) is a single-acting hydraulic cylinder, and the tip of the upper piston rod of the automatically controlled hydraulic cylinder (5) is hingedly connected to the lower part of the ore material partition cylinder (33).

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