Deep-sea mining mixed transport system

Abstract

The deep-sea mining mixed transport system includes a relay station, to which an ore material control cylinder 3 is sealed and connected to the lower end of the bunker 1 of the relay station, and the piston end of the upper end of an automatic control hydraulic cylinder 5 is hinged to the lower end of the ore material control cylinder. The automatic control hydraulic cylinder includes a control valve 52, a hydraulic cylinder and a piston rod, and the control valve includes a valve body, an indicator valve core and a follow valve core, and the indicator valve core includes a valve core sleeve and a valve core shaft, with the lower end of the indicator valve core protruding downward in a sealed manner from the outside of the valve body and fixedly connected to the control rod, and the follow valve core is fitted between the valve core sleeve and the valve core shaft and its upper end is connected to a bolt, and the bolt and piston form a helical pair. [Effects] This system eliminates clogging in the ore material supply port mesh, enables arch structure crushing, and allows for adjustment of the solid-liquid ratio of the ore material transported by the lift hard pipe.

Description

Technical Field

[0003]

[0001] The present invention relates to the technical field of deep - sea mining equipment. Specifically, it is a deep - sea mining hybrid transportation system for transporting ore, seawater, etc. on the seabed to a mother ship.

Background Art

[0002] The deep - sea mining hybrid transportation system includes a hose, a hose pump, a relay station, an inclined - flow pump, a lift hard pipe, and a mother ship. The relay station includes a bunker, a hydraulic station, an ore material supply pipe, etc. The hybrid transportation system transports ore particles and seawater on the seabed to the bunker of the relay station by the hose and the hose pump. The bunker transports the ore slurry from the bunker to the mother ship on the sea surface by the ore material supply mechanism, the inclined - flow pump, and the lift hard pipe at the bottom. That is, the bunker is responsible for the accumulation and relay function of the seabed ore material.

[0003] The deep - sea mining hybrid transportation system pulls up the ore slurry from the bunker by the lift hard pipe and the inclined - flow pump. In addition to the high height to which the ore slurry is pulled up, due to the limitations on the pipe diameter of the lift hard pipe and the flow rate of the ore slurry, the size of the ore particles and the concentration of the ore slurry are strictly required. Either a large ore particle size or a high ore slurry concentration is likely to cause blockage of the lift hard pipe and the inclined - flow pump, which further affects the working efficiency of the deep - sea mining hybrid transportation system.

[0004] To avoid clogging of the lift hard pipe and mixed-flow pump due to the size of ore material particles being too large, the system disclosed in the document titled "Deep-Sea Mining System" (Chinese Patent Application No. 2024104358527) solves the problem of clogging of the lift hard pipe due to the size of ore material particles by crushing and sieving the ore material before transporting it to the bunker. However, there was a problem in that it could not be guaranteed that all of the ore material particles that entered the bunker would be of acceptable size. Three situations occurred: the particle shape of the crushed ore material was irregular, and some ore material particles passed through the mesh of the sieve even though their length exceeded the size of the sieve; the sieve was locally damaged and could not be detected immediately; and some large ore material particles fell into the bunker due to other unexpected conditions in the deep sea.

[0005] To ensure the safe operation of equipment such as lift hard pipes and mixed-flow pumps, it is common practice to add mesh to the ore material supply port of the lift hard pipe at the bottom of the bunker to stop large ore particles. However, some ore particles can clog the mesh at the ore material supply port, and consequently, some ore particles can form an arch structure around the mesh, preventing the ore particles from passing through the mesh smoothly. As operating time increases, the clogging of the mesh and the formation of arch structures at the ore material supply port become increasingly severe, further affecting the amount of ore material transported per unit time by the lift hard pipe and mixed-flow pump.

[0006] Furthermore, when transporting ore materials using lift hard pipes and mixed-flow pumps, there are requirements not only for the size of the ore material particles but also for the transport concentration of the ore material. However, conventional relay station bunkers, while capable of controlling the size of the ore material particles, cannot avoid clogging of the mesh of the ore material supply port by the ore material particles. Moreover, they cannot eliminate the arch structure formed by the ore material particles around the mesh of the ore material supply port, making it even more impossible to control the ratio of ore material to seawater entering the lift hard pipe.

[0007] In summary, the current deep-sea mining mixed transport system has two main problems: firstly, the mesh at the ore material supply port of the lift hard pipe in the bunker lacks a cleaning mechanism, making it prone to clogging or arch formation at the ore material supply port of the lift hard pipe, which further affects the amount of material supplied to the lift hard pipe; and secondly, the solid-liquid ratio within the lift hard pipe cannot be guaranteed, and there is no concentration adjustment mechanism at the ore material supply port of the lift hard pipe. As a result, if a large amount of material is transported and the solid-liquid ratio is high, the lift hard pipe is prone to clogging, and if a small amount of material is transported and the solid-liquid ratio is low, the transport efficiency decreases. [Overview of the project] [Problems that the invention aims to solve]

[0008] The present invention aims to overcome the shortcomings of the prior art by providing a deep-sea mining mixed transport system that uses an automatically controlled hydraulic cylinder as power to eliminate clogging in the mesh of the ore material supply port and break up the arch structure through the ore material supply mechanism of the lift hard pipe, and also allows adjustment of the solid-liquid ratio of the ore material transported by the lift hard pipe, thereby ensuring efficient operation of the deep-sea mining mixed transport system. [Means for solving the problem]

[0009] To achieve the above objectives, the deep-sea mining mixed transport system according to the present invention is realized by the following technical solutions.

[0010] In a deep-sea mining mixed transport system comprising sequentially arranged hoses, relay stations, and lift hard pipes, with hose pumps attached to the hoses and mixed-flow pumps attached to the lift hard pipes, the inlets of the hoses being in an ore material stack and the outlets of the lift hard pipes being connected to a mother ship, the relay station having one bunker, the bunker having an inlet at its upper end and an ore material control cylinder sealed at its lower end, an ore material supply pipe being inserted coaxially with a gap into the ore material control cylinder, and the ore material supply pipe being directed upwards towards the ore material The ore material supply pipe extends through the material control cylinder into the bunker, with its lower end protruding from the ore material control cylinder and fixedly connected to the lift hard pipe. Multiple ore material supply openings are provided in a spiral pattern on the side wall of the ore material supply pipe extending into the bunker, and these openings are spirally distributed 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. Below the ore material control cylinder, an automatic control hydraulic cylinder is provided, connected to the side wall of the ore material supply pipe. The automatic control hydraulic cylinder has its upper end as the piston end and is hinged to the lower end of the ore material control cylinder, allowing it to move up and down in conjunction with the ore material control cylinder. The automatic control 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 so as to be sealed, directly below the hydraulic cylinder. The valve body has an axial first oil port, and the side wall of the valve body has a second oil port, an oil supply port, and an oil discharge port. The first oil port communicates with the rodless cavity of the hydraulic cylinder, and the second oil port communicates with the rod-mounted cavity of the hydraulic cylinder. Communicating with the cavity, the control valve includes a valve body, an indicator valve core, and a follow 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 downward in a sealed manner outside the valve body and is fixedly connected to the control rod. The follow valve core is fitted between the valve core sleeve and the valve core shaft and its upper end 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 helical pair, which rotates the control rod and changes the position of the indicator valve core relative to the valve body.This deep-sea mining and transport system uses a follow-up valve core that, based on its relative deflection direction with the indicator valve core, connects the oil supply and discharge directions at both ends of a hydraulic cylinder. It drives a piston up and down, rotating the follow-up valve core in the deflection direction set by the indicator valve core. The system then sets an axial position where the piston stops within the hydraulic cylinder. Once the piston reaches this position, the follow-up valve core automatically closes the first and second oil ports, connecting the oil supply and discharge ports.

[0011] Furthermore, the valve body has a through-valve core mounting hole in the center, with a larger diameter at the bottom and a smaller diameter at the top. The upper part of the follow-up valve core is fitted into the upper part of the valve core mounting hole, and an oblique angle is provided at the bend between the large diameter of the valve core mounting hole and the stepped plane. The valve body, valve core sleeve, and follow-up valve core are enclosed by the oblique angle to form a sealed space. The valve core sleeve is a stepped bushing with a smaller bottom and a larger top, and a first inner hole is provided in the center of the upper part. The lower part of the follow-up valve core is fitted into the first inner hole. The upper part of the shaft is fitted into the inner bore of the follow valve core. The upper side wall of the valve core sleeve has four identical arc-shaped holes that penetrate the side wall. The arc-shaped holes have a central angle of 150° to 160°. Two arc-shaped holes uniformly distributed in the same radial cross-section form one group. Two arc-shaped holes in each group face each other radially. The arc-shaped holes in two groups are parallel to the axial direction and offset by 90 degrees from the radial centerline. 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 communicates with hole B, the oil discharge port communicates with hole A, hole D communicates with the second oil port, an axial oil hole K is provided between hole C and the upper end surface of the valve core sleeve, oil hole K communicates with the sealed space and the first oil hole, tank F is provided in the middle of the upper part of the valve core shaft, tank F is a plane whose bottom extends beyond the central axis of the valve core shaft, the follow valve core is a one-stage cylindrical shape with a larger lower diameter and a smaller upper diameter, a second internal 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 The valve core extends into the lower small hole of the valve core sleeve and is fixed by a first elastic pin. The lower side wall of the following valve core has symmetrical M-shaped and N-shaped holes, the length of which corresponds to the axial distance between two groups of arc holes in the valve core sleeve, and the width which can completely cover the radially connected ends of holes C and D. In the initial state, the M-shaped and N-shaped holes are located exactly at the two connection points between holes C and D, blocking communication between holes B and A and holes C and D.

[0012] Furthermore, a groove E is provided radially on the stepped surface of the valve core sleeve below hole A, and groove E has the same radial origin, direction, and arc as hole A, and is parallel to hole A in the axial direction, and a first position regulating screw is engaged with groove E to limit the rotation angle of the valve core sleeve, and groove G is provided at the lower end of the follow valve core, located radially between the M waist-shaped hole and the N waist-shaped hole, and the radial angle of groove G is greater than or equal to that of groove E, and a second position regulating screw is engaged between groove G and the valve core sleeve to limit the rotation range of the follow valve core in the valve core sleeve. [Effects of the Invention]

[0013] The beneficial effects of adopting the above-described technical solutions in this invention are as follows:

[0014] 1. In the ore material supply mechanism for the lift hard pipe of the present invention, the piston rod of the automatically controlled hydraulic cylinder systematically presses against the ore material control cylinder and moves it up and down along the ore material supply pipe. Firstly, it is possible to remove the ore material that is stuck in the ore material supply opening mesh and to break up the arch structure of the ore material around the ore material supply opening mesh. Since the ore material removal ring is fitted into the gap with respect to the ore material supply pipe, the automatically controlled hydraulic cylinder presses against the ore material control cylinder and moves the ore material removal ring upward, so that the upper end surface of the ore material removal ring presses and shears against the ore material stuck in the ore material supply opening mesh, thereby breaking up the ore material stuck in the ore material supply opening mesh and completing the cleaning of the ore material supply opening mesh. During the cleaning process of the ore material supply opening mesh, the ore material removal ring moves continuously and systematically up and down along the ore material supply pipe, constantly stirring the ore material around the ore material supply opening mesh, preventing the ore material around the mesh from forming an arch structure. This ensures that the ore material can be transported continuously and stably to the lift hard pipe via the ore material supply opening mesh. Secondly, it is possible to adjust the solid-liquid ratio of the ore slurry. In the automatically controlled hydraulic cylinder, the stopping position of its piston rod can be freely set, and since the ore material removal ring in the ore material control cylinder is fitted into the gap with respect to the ore material supply pipe, the ore material control cylinder and the ore material removal ring can be used to assign and isolate the ore material supply opening mesh in the ore material supply pipe vertically. Some of the ore material supply opening mesh is isolated by the ore material control cylinder and the ore material removal ring, away from the bunker, i.e., away from the ore material, and covered so as to be located inside the ore material control cylinder, communicating with 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 openings in the bunker to the number of ore material supply openings in the ore material control cylinder is changed, thereby enabling adjustment of the ore slurry solid-liquid ratio.

[0015] 2. In the present invention, the top of the ore material supply pipe within the bunker is closed, forming a conical tube cone, and the tube cone of the ore material supply pipe breaks up the arch structure of the ore material at the top of the ore material supply pipe in the bunker, thereby preventing the ore material from forming an arch structure at the upper end of the ore material supply opening.

[0016] 3. In the automatically controlled hydraulic cylinder of the present invention, the position of the piston in the hydraulic cylinder is set by rotating the position of the control rod. The direction of deflection of the indicator valve core relative to the follow valve core determines the flow direction of the hydraulic fluid in the hydraulic cylinder, that is, it determines whether the hydraulic fluid enters from the bottom and exits from the top or enters from the top and exits from the bottom. When the hydraulic system is in operation, once the control rod has set the piston position, including setting the piston to the bottom dead center, the top dead center, and any position in the axial direction of the hydraulic cylinder, the hydraulic system can automatically push the piston and move it in the direction of the set position. As the piston moves, it rotates a bolt in conjunction with it, and the bolt rotates the follow valve core in conjunction with it in the direction deflected relative to the indicator valve core. When the piston reaches the position set by the indicator valve core, the follow valve core automatically closes the upper and lower oil ports on the valve body and simultaneously connects the oil supply port and oil discharge port on the valve body, unloading the hydraulic system.

[0017] Furthermore, if an internal leak occurs in the hydraulic cylinder and the piston shifts from its installed position, the bolt converts the piston's movement into rotation of the follow valve core. This causes the follow valve core to deflect relative to the indicator valve core, and the rotation of the follow valve core closes the unload oil passage formed with the indicator valve core, automatically connecting the upper and lower oil ports on the valve body, pressing the piston and compensating for the displacement. When the piston returns to the position installed by the indicator valve core, the follow valve core closes the upper and lower oil ports again, connecting the oil supply and discharge ports on the valve body to unload the oil, thereby achieving 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 adjust the system operating pressure and guarantee the safe operation of the system, and the overflow port communicates with the oil discharge port. To meet the requirement that the overflow valve and the pipeline can withstand the seabed pressure and operate reliably at the deep-sea seabed, the present invention provides the overflow valve and the oil pipe inside the valve body.

[0019] 5. To ensure that the movement of the piston has a linear relationship with the rotation of the follower valve core and improve the stability and control accuracy of the system, the present invention installs the bolt and the piston as a multi-head ball screw.

[0020] 6. When the control valve unloads, to ensure that the M and N holes on the follower valve core in the present invention can be completely covered by the connection points that radially connect both ends of the C and D holes in the indicating valve core in the radial direction, it is ensured that the upper oil port and the lower oil port are closed, 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 hole to 150° - 160°.

Brief Description of the Drawings

[0021] [Figure 1] It is a layout schematic diagram of the overall structure of the deep-sea mining mixed transportation system of the present invention. [Figure 2] It is an enlarged schematic diagram of the relay station A04 in Embodiment 1. [Figure 3] It is an enlarged front view after rotating the automatic control hydraulic cylinder 5 in FIG. 2 clockwise by 90°. [Figure 4] It is a top view of FIG. 3. [Figure 5] It is an enlarged cross-sectional view taken along A - A in FIG. 4. [Figure 6] It is an enlarged perspective view of the valve core sleeve 511 in FIG. 3. ]] [Figure 7] It is an enlarged perspective view of the valve core shaft 512 in FIG. 3. [Figure 8] It is a perspective view of the tracking valve core 505 in FIG. 3 enlarged. [Figure 9] It is a perspective view after rotating FIG. 8. [Figure 10] It is a schematic diagram of the relay station in Example 2 enlarged. [Figure 11] It is a schematic diagram of the relay station in Example 3 enlarged.

Embodiments for Carrying out the Invention

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

[0023] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used in this specification have the same meaning as the general understanding of those skilled in the technical field to which the present invention belongs.

Examples

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

[0025] As shown in Figure 2, relay station A04 has a bunker 1, which is funnel-shaped, wider at the top and narrower at the bottom. The upper end of the bunker 1 is the inlet, corresponding to the outlet of hose A06, and receives the ore transported by hose A06. The bunker 1 has a funnel opening 11 at its lower end, and a flange 4 is fixedly connected to the funnel opening 11 from bottom to top using screws. The flange 4 is a single-stage bushing, narrower at the top and wider at the bottom, with the upper journal being a position-regulating journal that engages with the funnel opening 11. A sealing tank 41 is provided in the flange cavity of the flange 4, and wool felt packing material is provided in the sealing tank 41. An ore material control cylinder 3 is provided 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 in the coaxial direction. In this way, the ore material control cylinder 3 is externally 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 bunker 1, flange 4, sealed tank 41, ore material control cylinder 3, and ore material supply pipe 2 have collinear central axes.

[0026] Multiple ore material supply openings 22 are provided on a portion of the side wall of the ore material supply pipe 2 extending into bunker 1, and these ore material supply openings 22 are distributed spirally at the top of the ore material supply pipe 2. The size of the holes in the ore material supply openings 22 is designed according to the size of the ore material to be transported. The function of the ore material supply openings 22 is to transport ore material to the ore material supply pipe 2, and the ore material in bunker 1 enters the ore material supply pipe 2. As the ore material control cylinder 3 moves upward, some of the ore material supply openings 22 become located inside the ore material control cylinder 3, and the higher the upward position of the ore material control cylinder 3, the more ore material supply openings 22 enter the ore material control cylinder 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 up the arch structure and prevent the ore material from forming an arch structure at the upper end of the ore material supply opening mesh 22 and affecting the transport 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 smaller outer diameter at the top and a larger outer diameter at the bottom, giving it a frustoconical shape with a through hole in the center. The ore material supply pipe 2 passes through the corresponding through hole in the ore material removal ring 35 and is 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 with it, reducing the upward resistance of the ore material control cylinder 3 and ensuring the strength of the ore material removal opening 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 compress, shear, and crush the ore particles packed in the ore material supply opening mesh 22. The ore material removal ring 35 constantly slides up and down within the ore material supply pipe 2, while simultaneously preventing the ore material from forming an arch structure around the ore material supply opening mesh 22, ensuring that the ore material can be continuously and stably transported to the ore material supply pipe 2 via the ore material supply opening 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 engages 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 fitted together. This ensures that the ore material control cylinder 3 can move smoothly up and down even with only one point of force acting in its radial direction, and that it does 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 provided on the guide flange 36, so that the inside of the ore material control cylinder 3 is in communication with seawater, and the seawater inside the ore material control cylinder 3 passes through the ore material supply mesh 22 and enters the ore material supply pipe 2, so the seawater inlet 37 supplies seawater to the ore material supply mesh 22 that has entered the ore material control cylinder 3.

[0031] A notch 38 is provided on the edge of the guide flange 36, providing space for connecting the ore material control cylinder 3 and the automatic control hydraulic cylinder 5. The automatic control hydraulic cylinder 5 is located below the ore material control cylinder 3, next to the ore material supply pipe 2, and is fixedly connected to the side wall of the ore material supply pipe 2. The central axis of the automatic control hydraulic cylinder 5 is parallel to the central axes of the ore material control cylinder 3 and the ore material supply pipe 2. The upper end of the automatic control hydraulic cylinder 5 is a piston end and is hinged to the lower end of the ore material control cylinder 3, causing the ore material control cylinder 3 to move up and down in conjunction with it.

[0032] As the ore material control cylinder 3 moves upward in conjunction with the automatically controlled hydraulic cylinder 5, the ore material removal ring 35 seals the funnel opening 11 of the bunker 1 when crushing the ore material or breaking the arch structure. In other words, the ore material control cylinder 3 is connected to seal the funnel opening 11, preventing the ore material in the bunker 1 from falling into the sea. At the same time, it isolates the ore material supply opening mesh 22 in the ore material supply pipe 2 vertically, solving the problem of adjusting the concentration of ore slurry in the ore material supply pipe 2.

[0033] Multiple ore material supply openings 22 are distributed spirally on a portion of the side wall of the ore material supply pipe 2, and two adjacent ore material supply openings 22 rising in a spiral are distributed at equal intervals. In this way, when the ore material removal ring 35 presses and shears the ore particles packed in the ore material supply openings 22, the number of ore material supply openings 22 that are simultaneously sheared at each cross-section of the ore material supply pipe 2 is relatively uniform, and therefore the force received by the automatic control hydraulic cylinder 5 is also uniform.

[0034] As shown in Figures 3, 4, 5, 6, 7, 8, and 9, the automatic control hydraulic cylinder 5 includes a control valve 52, a hydraulic cylinder 513, and a piston rod 501, the central axes of the three components being collinear. The automatic control hydraulic cylinder 5 is supplied with hydraulic fluid from the deep-sea mining mixed transport system hydraulic station, and 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 connected to the lower end of the hydraulic cylinder 513 to seal it. The piston rod 501 extends out of the cylinder body from the upper end cover of the hydraulic cylinder 513, and the upper end of the piston rod 501 is a piston rod hinge 51, which extends upward outside the hydraulic cylinder 513, and the lower part of the ore material control cylinder 3 is connected to the piston rod hinge 51, so that the piston rod 501 moves the ore material control cylinder 3 in conjunction with the piston rod hinge 51.

[0035] The control valve 52 is fixedly connected to the lower end of the hydraulic cylinder 513 in a sealed manner and includes a valve body 530, an indicator valve core 53, and a follow valve core 505. The indicator valve core 53 includes a valve core sleeve 511 and a valve core shaft 512, all of which have collinear central axes. The outer diameter of the valve body 530 is the same as the outer diameter of the hydraulic cylinder 513. The lower end of the indicator valve core 53 protrudes downward in a sealed manner from the outside of the valve body 530 and is fixedly connected to a control rod 508, which is located at the very bottom of the entire automatic control hydraulic cylinder 5.

[0036] An end cover is provided to seal 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, thereby fixing the entire automatic control hydraulic cylinder 5. Both the lower end cover of the valve body 530 and the upper end cover of the hydraulic cylinder 513 have fixing plates 507 that extend from them, and the fixing plates 507 are mounting legs that fix the automatic control hydraulic cylinder 5 to the ore material supply pipe 2, thereby fixing the automatic control hydraulic cylinder 5 to the ore material supply pipe 2.

[0037] The valve body 530 has a stepped shape, with a larger outer diameter at the bottom and a smaller outer diameter at the top. The stepped surface is in close contact with the lower end surface of the hydraulic cylinder 513. The outer diameter of the lower stepped large shaft is the same as the outer diameter of the hydraulic cylinder 513, and the outer diameter of the upper stepped small shaft is equal to the inner diameter of the hydraulic cylinder 513. The valve body extends into the hydraulic cylinder 513 and is fixedly sealed to the inner wall of the hydraulic cylinder 513. It does not come into contact with the piston 502 in the axial direction, and the space between the valve body 530 and the piston 502 is 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 penetrates the valve body 530 vertically and is a single-stage hole, with a larger diameter at the bottom and a smaller diameter at the top. The valve core sleeve 511 is fitted into the larger hole of the valve core mounting hole, and the upper part of the follow-up valve core 505 is fitted into the smaller hole at the top of the valve core mounting hole.

[0039] An oblique angle is provided at the bend between the large diameter of the valve core mounting hole and the stepped plane. In this way, the valve core mounting hole is surrounded by the stepped plane by the valve body 530, the valve core sleeve 511, and the follow valve core 505, forming a sealed space 535.

[0040] An axial first oil port a is provided 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 provided on the side wall of the valve body 530. The first oil port a connects the sealed space 535 to the rodless cavity of the hydraulic cylinder 513, and the second oil port b connects to the rod-equipped cavity of the hydraulic cylinder 513.

[0041] As shown in Figure 5, 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 regulating screw 563, and an overflow port 564. A hole is provided in the valve body 530 that communicates with the oil supply port 531. The steel ball 561 and the compression spring 562 are installed in this hole. The steel ball 561 is 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 regulating screw 563. The overflow port 564 communicates with the oil discharge port 532. The pressure regulating screw 563 adjusts the pressure that the steel ball 561 applies to the oil supply port 531 by adjusting the length of the compression spring 562.

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

[0043] As shown in Figure 6, the valve core sleeve 511 is cylindrical, with a smaller outer diameter at the bottom and a larger outer diameter at the top, making it a stepped bushing, and a first inner hole 540 is provided in the center of the upper part. The first inner hole 540 is a single-stage blind hole, with a smaller inner hole diameter at the bottom and a larger inner hole diameter at the top, making it a stepped blind hole. The valve core shaft 512 is a single-stage shaft, with a smaller outer diameter at the bottom and a larger outer diameter at the top, making it a stepped shaft, and the follow valve core 505 and the valve core shaft 512 are sequentially fitted coaxially into the first inner hole 540 from the outside inward. Specifically, the lower part of the follow 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 follow valve core 505.

[0044] The upper side wall of the valve core sleeve 511 is provided with four arc-shaped holes of the same outer size that penetrate the side wall. The arc-shaped holes have a radial center angle of 150° to 160° and are divided into upper and lower groups. Two arc-shaped holes uniformly distributed in the same radial cross-section constitute one group. Two arc-shaped holes in each group are radially opposite to each other, and the arc-shaped holes in the two groups are parallel to the axial direction and distributed with a 90-degree offset from the radial centerline. Here, the two arc-shaped holes in the lower group are denoted as holes A 543 and holes B 544, and the two arc-shaped holes in the upper group are denoted as holes C 546 and holes D 545. The oil supply port 531 communicates with hole B 544, and the oil discharge port 532 communicates with hole A 543. Hole D 545 communicates with the second oil port b.

[0045] A groove E 541 is provided radially on the stepped surface of the valve core sleeve 511 below hole A 543. The groove E 541 has the same radial origin, direction, and arc as hole A 543, and is parallel to hole A 543 in the axial direction. A first screw hole 533 is provided in the valve body 530, and a first position regulating screw 520 can be engaged with groove E 541 within this hole to limit the rotation angle of the valve core sleeve 511.

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

[0047] A tank F 548 is provided in the middle of the upper part of the valve core shaft 512, and the bottom of the tank F 548 is a plane that extends beyond the central axis of the valve core shaft 512, that is, the depth of the tank 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 bisector plane symmetrical along the axial direction of the valve core shaft 512, that is, a first spring pin 509 fixing hole common to the valve core shaft 512 and the valve core sleeve 511 is provided, and the first spring pin 509 and its fixing hole Therefore, the valve core shaft 512 is fixedly connected inside the valve core sleeve 511.

[0048] The follow valve core 505 has a single-stage cylindrical shape, with a larger diameter at the bottom and a smaller diameter at the top. An axial second internal bore 555 is provided in the center of the lower part, and the upper part of the valve core shaft 512 engages with the second internal bore 555. That is, the upper part of the valve core shaft 512 is fitted into the larger lower bore of the follow valve core 505, and the lower part of the valve core shaft 512 extends downward into the smaller lower bore of the valve core sleeve 511 and is fixed by the first elastic pin 509.

[0049] The lower outer circumference of the follow valve core 505 engages with the first inner hole 540 of the valve core sleeve 511. Two axial waist-shaped holes are provided in the lower side wall of the follow valve core 505, symmetrical with respect to the central axis of the follow valve core 505, denoted 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 two groups of arc holes in the valve core sleeve 511, and the width is such that it can be completely covered by the radially connected ends of C hole 546 and D hole 545 in the valve core sleeve 511. When the control valve 52 is in its initial state, the M-shaped hole 551 and N-shaped hole 552 of the follow valve core 505 are located exactly at the two connection points between the C hole 546 and the D hole 545, blocking 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 passages of the first oil port a and the second oil port b, stopping the oil supply and discharge of the hydraulic cylinder 513, and ensuring that the first oil port a and the second oil port b are closed when the control valve 52 is unloaded.

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

[0051] The upper part of the follow valve core 505 engages with the valve core mounting hole in the valve body 530, and an axial H groove 554 is provided on the upper shaft of the follow 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 spiral grooves, and two radially symmetrical steel balls are provided in the inner bore of the piston 502. The two symmetrical arc spiral grooves and the two radially symmetrical steel balls in the piston 502 work together so that when the piston 502 moves up and down, the steel balls act on the bolt 503 along the arc spiral grooves, converting the axial movement of the piston 502 into a rotation angle of the bolt 503, and the frictional force between the bolt 503 and the piston 502 is reduced by the steel balls. The length of bolt 503 matches the length of hydraulic cylinder 513, the piston rod 501 is a hollow rod, and bolt 503 can enter the hollow portion of piston rod 501 by piston 502. Piston 502 moves from the lower end to the upper end of hydraulic cylinder 513, and the rotation angle of bolt 503 over the entire stroke of piston 502 is 150° to 160°. The length of bolt is greater than or equal to the axial distance of hydraulic cylinder 513.

[0052] After the mounting of the indicator valve core 53 and the follow valve core 505 onto the valve body 530 is complete, an oblique angle is provided at the bend of the stepped surface of the valve core mounting hole of the valve body 530, and the cross section between this oblique angle, the outer diameter of the follow valve core 505, and the upper end surface of the valve core sleeve 511 forms a triangular sealed space 535, which is in communication with the K oil hole 547 and the first oil hole a.

[0053] The follow valve core 505 works in cooperation 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 follow valve core 505 passes through the upper end of the valve body 530 and is connected to a bolt, forming a helical pair with the piston 502. By rotating the control rod 508, the position of the indicator valve core 53 relative to the valve body 530 is changed, and the follow valve core 505 automatically selects a direction of deflection relative to the indicator valve core 53 to communicate the oil supply and oil discharge directions at both ends of the hydraulic cylinder 513, driving the piston 502 upward or downward. This causes the piston 502 to rotate in the direction of deflection set by the indicator valve core 53, in conjunction with the follow valve core 505 via the bolt, thereby setting the axial position in which the piston 502 stops in the hydraulic cylinder 513. When the piston 502 reaches the installation position, the follow 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 opens the oil supply port 531 and the oil discharge port 532 to unload.

[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 driven and rotated by an external general-purpose drive device (the general-purpose drive device is not shown), and viewed from below, when the drive device drives the control rod 508 and rotates it counterclockwise, the valve core shaft 512 of the indicator valve core 53 rotates in sync with the valve core sleeve 511, causing the indicator valve core 53 to rotate counterclockwise relative to the follow valve core 505. As the indicator valve core 53 rotates from its initial state, the positions of the M-shaped holes 551 and N-shaped holes 552 in the follow valve core 505 and the radial positions of the C-holes 546 and D-holes 545 in the valve core sleeve 511 change, and the follow valve core 505 no longer blocks communication between the B-holes 544 and A-holes 543 and the C-holes 546 and D-holes 545, thus enabling communication between the B-holes 544 and A-holes 543 and the C-holes 546 and D-holes 545. At this time, the hydraulic fluid that enters from the oil supply port 531 flows sequentially through hole B 544 in the valve core sleeve 511, hole M 551 in the follow valve core 505, hole D 545 in the valve core sleeve 511, the second oil port b, and the cavity with the hydraulic cylinder 513 rod. Simultaneously, the hydraulic fluid in the cavity without the rod of the hydraulic cylinder 513 flows sequentially through the first oil port a, hole K 547 in the valve core sleeve 511, hole C 546, hole N 552 in the follow valve core 505, hole A 543 in the valve core sleeve 511, and finally discharges from the oil discharge port 532. This presses the piston 502 down, causing it to move from top to bottom, and the piston rod 501 retracts, causing the ore material control cylinder 3 to move downwards in conjunction with it.

[0057] 2. The piston rod 501 extends.

[0058] The control rod 508 is driven to rotate clockwise, causing the hydraulic fluid entering from the oil supply port 531 to flow sequentially through hole B 554 in the valve core sleeve 511, hole M 551 in the follow valve core 505, hole C 546 in the valve core sleeve 511, hole K 547, the first oil port a, and the rodless cavity of the hydraulic cylinder 513. Simultaneously, the hydraulic fluid in the rod-bearing cavity of the hydraulic cylinder 513 flows sequentially through the second oil port b, hole D 545 in the valve core sleeve 511, hole N 552 in the follow valve core 505, and hole A 543 in the valve core sleeve 511, and is finally discharged from the oil discharge port 532. This pushes the piston 502 upward, causing the piston rod 501 to extend and interlock with the ore material control cylinder 3 upward.

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

[0060] The M-shaped hole 551 and N-shaped hole 552 in the follow valve core 505 are located at the connection point between C-hole 546 and D-hole 545, blocking communication between B-hole 544 and A-hole 543 and C-hole 546 and D-hole 545. In other words, the oil passages of the first oil port a and the second oil port b are severed, meaning that the inflow and outflow of hydraulic fluid is stopped at the upper and lower ends of the hydraulic cylinder 513 and the pressure is maintained. The unloading process of the hydraulic system involves supplying oil from the oil supply port 531, and the hydraulic fluid sequentially flowing through B-hole 544, M-shaped hole 551, F-tank 548, N-shaped hole 552, and A-hole 543, and then being discharged from the oil discharge port 532.

[0061] When the piston rod 501 pushes the ore material control cylinder 3 upward, the ore material removal ring 35 compresses and shears the ore particles stuck in the ore material supply port mesh 22, cleaning the mesh. At the same time, the movement of the ore material control cylinder 3 stirs the ore particles around the mesh 22, thus breaking up the arch structure of the ore particles around the mesh 22. Next, the piston rod 501 of the automatic control hydraulic cylinder 5 is moved to pull the ore material control cylinder 3 back downward, returning it to its original position. Thus, by moving the automatic control hydraulic cylinder 5 to move the ore material control cylinder 3 up and down in a regular manner, daily cleaning and arch structure breaking of the ore material supply pipe 2 can be completed. By controlling the stopping position of the piston rod 501 of the automatically controlled hydraulic cylinder, it is possible to further set the ratio of the number of ore material supply port meshes 22 in the bunker 1 and the number of ore material supply port meshes 22 in the ore material control cylinder 3, thereby achieving the objective of adjusting the solid-liquid ratio of the ore slurry. [Examples]

[0062] As shown in Figure 10, the lower part of the guide flange 36 is located in the ore material supply pipe 2, and two automatic control hydraulic cylinders 5 are fixedly connected radially symmetrically. Unlike Embodiment 1, the structure of the two automatic control hydraulic cylinders 5 is the same and both are parallel to the central axis of the ore material supply pipe 2. The connection method between each automatic control hydraulic cylinder 5 and the ore material control cylinder 3 is the same as in Embodiment 1. Otherwise, it is the same as Embodiment 1. The two automatic control hydraulic cylinders 5 operate synchronously, providing a greater force and balancing the force received by the ore material control cylinder 3, allowing for more stable movement. [Examples]

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

[0064] There is a large gap between the tube cone 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 opening mesh 22 in the ore material supply pipe 2 are in an integer multiple relationship, so the spiral scraper 32 and the ore material supply pipe 2 are fitted together in the gap. The partition plate 34 at the upper end of the ore material partition cylinder 33 and the ore material supply pipe 2 are fitted together in the gap, and a sealing tank 41 is provided on the engaging surface of the partition plate 34 that cooperates with the ore material supply pipe 2, and a filler material is provided inside the sealing tank 41.

[0065] When the automatic control hydraulic cylinder 5 is moved to press the ore material control cylinder assembly 6 against it and move up and down along the ore material supply pipe 2 as specified, firstly, it is possible to crush and remove the ore material stuck in the ore material supply opening mesh 22 and to crush the arch structure of the ore material around the ore material supply opening mesh 22. Since the spiral scraper 32 is fitted into the gap of 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 opening mesh 22, crushing the ore material stuck in the ore material supply opening mesh 22 and completing the cleaning of the ore material supply opening mesh. During the cleaning process of the ore material supply mesh 22, as the spiral scraper 32 moves, the ore material around the ore material supply mesh 22 is stirred up, thereby breaking down and removing the arch structure of the ore material around the ore material supply mesh 22. This ensures that the ore material can be transported continuously and stably to the lift hard pipe via the ore material supply mesh 22. Secondly, it is possible to adjust the solid-liquid ratio of the ore slurry. In the automatically controlled hydraulic cylinder 5, the stopping position of its piston rod can be freely set, and a sealing structure is provided between the partition plate 34 in the ore material partition cylinder 33 and the ore material supply pipe 2, so that the ore material partition cylinder 33 can isolate and allocate the ore material supply mesh 22 in the ore material supply pipe 2 vertically. The upper ore material supply opening mesh 22 transports ore material to the ore material supply pipe in the bunker 1, and the lower ore material supply opening mesh 22 transports seawater to the ore material supply pipe 2 in the ore material partition cylinder 33. Therefore, by adjusting the stopping position of the ore material partition cylinder 33, the solid-liquid ratio of the ore slurry can be adjusted. Thirdly, the total amount of ore material supplied to the ore material supply pipe can be controlled. Since the pitch and lead of the spiral scraper and the pitch and lead of the ore material supply opening mesh in the ore material supply pipe are in an integer multiple relationship, by setting the stopping position of the piston rod of the automatic control hydraulic cylinder and effectively shielding the ore material supply opening mesh with the spiral scraper, the amount of ore material and seawater supplied to some of the ore material supply opening meshes can be controlled, thereby achieving the objective of controlling the total supply amount of ore material to the ore material supply pipe.

[0066] Fourth, by fitting the gap between the spiral scraper and the ore material supply pipe, it is possible to guide the ore material partition cylinder within the ore material supply pipe, thereby allowing the ore material partition cylinder to move smoothly within the ore material supply pipe and preventing it from getting stuck or self-locking.

[0067] Furthermore, by using a spiral scraper in the ore material supply port mesh, self-cleaning can be achieved by the spiral scraper. Because the contact area between the spiral scraper and the ore material supply pipe in the same cross-section is very small, simply moving the ore material partition cylinder a small distance in the axial direction is enough to press and break down the scattered ore particles between the spiral scraper and the ore material supply pipe, thus achieving self-cleaning. On the other hand, the spiral force of the spiral scraper causes it to move up and down in the bunker, naturally spiraling and dispersing the ore material in the bunker, and reducing the resistance force to the vertical movement of the automatically controlled hydraulic cylinder.

[0068] As shown in Figure 11, the second ore material control cylinder 6 has a tubular ring 31, a spiral scraper 32, a partition plate 34, and an ore material partition cylinder 33 fixedly connected from top to bottom. The tubular ring 31 has a smaller outer diameter at the top and a larger 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 tubular ring 31 and the ore material supply pipe 2, so they do not fit together. The function of the tubular ring 31 is to connect the spiral scraper 32 and increase the rigidity of the spiral scraper 32.

[0069] The spiral scraper 32 is fitted into the gap of the ore material supply pipe 2. The purpose of installing the spiral scraper 32 is to reduce the contact area between the same cross-section and the ore material supply pipe 2, thereby preventing the gap between the spiral scraper 32 and the ore material supply pipe 2, which share the same cross-section, from being densely filled with fine ore material at the same time, which would create excessive resistance when the second ore material control cylinder 6 moves up and down, thus increasing wear on the ore material supply mechanism. In addition, the vertical movement of the spiral scraper 32 applies pressure and shear to the ore material stuck in the ore material supply opening mesh 22, thereby crushing the ore material that is blocking the ore material supply opening mesh 22. Furthermore, the pitch and lead of the spiral scraper 32 and the pitch and lead of the ore material supply opening mesh 22 in the ore material supply pipe 2 are in an integer multiple relationship, and since 1 is selected as the multiple in this embodiment, the spiral scraper 32 can cover part or all of the ore material supply opening mesh 22, reducing the ore material supply area of ​​the ore material supply opening mesh 22 and reducing the amount of ore material supplied to the ore material supply pipe. The gap fitting between the spiral scraper 32 and the ore material supply pipe 2 increases the guide length between the second ore material control cylinder 6 and the ore material supply pipe 2, preventing the second ore material control cylinder 6 from getting stuck or self-locking in the ore material supply pipe 2, and allowing the second ore material control cylinder 6 to move smoothly in the ore material supply pipe 2. The spiral scraper 32 slides continuously and systematically up and down the ore material supply pipe 2, preventing the ore material from forming an arch structure in the ore material supply opening 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 opening mesh 22.

[0070] The partition plate 34 is annular in shape and is provided at the upper end of the ore material partition cylinder 33. It is integrated with the ore material partition cylinder 33, and a sealed chamber is provided on the inner circumference of the partition plate 34. Wool felt packing material is filled into the sealed chamber, and the partition plate 34 is fitted into the ore material supply pipe 2. The outer circumference of the ore material partition cylinder 33 is fitted into the inner circumference of the flange 4, and the lower part is hinged to the piston rod 501 of the automatic control hydraulic cylinder 5 via a hinge 51. The automatic control 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 automatic control hydraulic cylinders 5, which are distributed symmetrically in the ore material supply pipe 2. In this embodiment, one is installed. The function of the partition plate 34 and the ore material partition cylinder 33 is to prevent the ore material in the bunker 1 from falling to the seabed when the automatically controlled hydraulic cylinder 5 moves upward, and at the same time, to isolate a portion of the ore material supply opening mesh 22 in the ore material supply pipe 2 from the bunker 1, thereby adjusting the ore slurry concentration. [Explanation of symbols]

[0071] A01 Mother ship 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 Tube Drill Ring 32 Spiral Scraper 33. Ore material partition cylinder 34 partition plates 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 regulating 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 internal bore 541 E tank 542 Second screw hole 543 Hole A 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 internal bore

Claims

1. In a deep-sea mining mixed transport system, which includes sequentially arranged hoses (A06), relay stations (A04), and lift hard pipes (A02), with a hose pump (A05) attached to the hose (A06) and a mixed-flow pump (A03) attached to the lift hard pipe (A02), the inlet of the hose (A06) is located in an ore material stack (A07) and the outlet of the lift hard pipe (A02) is connected to a mother ship (A01), The relay station (A04) has a bunker (1), the upper end of which is an entrance, and the lower end of which is connected to a sealed ore material control cylinder (3), and an ore material supply pipe (2) is inserted coaxially into the ore material control cylinder (3) with a gap, and the ore material supply pipe (2) extends upward through the ore material control cylinder (3) into the bunker (1), with the lower end of the ore material supply pipe (2) protruding from the ore material control cylinder (3) and lifting A multiple ore material supply port mesh (22) is provided on the side wall of the ore material supply pipe (2), which is fixedly connected to the hard pipe (A02) and extends into the bunker (1). The ore material supply port mesh (22) is 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), and a seawater inlet (37) into which seawater can flow is provided in the guide flange (36). Below the ore material control cylinder (3) is an automatic control hydraulic cylinder (5) connected to the side wall of the ore material supply pipe (2). The automatic control hydraulic cylinder (5) has a piston end at its upper end and is hinged to the lower end of the ore material control cylinder (3), allowing it to move up and down in conjunction with the ore material control cylinder (3). The automatic control 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) so as to be sealed directly below it. An axial first oil port (a) is provided 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 provided on the side wall of the valve body (530). The first oil port (a) communicates with the rodless cavity of the hydraulic cylinder (513), and the second oil port (b) communicates with the rod-bearing cavity of the hydraulic cylinder (513). The control valve (52) includes a valve body (530), an indicator valve core (53), and a follow valve core (505). The indicator valve core (53) includes a valve core sleeve (511) and a valve core shaft (512). The lower end of the indicator valve core (53) protrudes downward in a sealed manner from the outside of the valve body (530) and is fixedly connected to a control rod (508). The follow valve core (505) is fitted between the valve core sleeve (511) and the valve core shaft (512) and its upper end 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 helical 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 follow 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), driving the piston (502) up and down, and the follow valve core (505) is rotated in conjunction with the deflection direction set by the indicator valve core (53), setting the axial position in which the piston (502) stops in the hydraulic cylinder (513), and when the piston (502) reaches the set position, the follow valve core (505) automatically closes the first and second oil ports (a, b) and connects 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 regulating screw (563), and an overflow port (564). A hole is provided in the valve body (530) that communicates with the oil supply port (531). The steel ball (561) and the compression spring (562) are installed in this hole. The steel ball (561) is 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 regulating screw (563). The overflow port (564) communicates with the oil discharge port (532). The pressure regulating screw (563) adjusts the pressure that the steel ball (561) applies to the oil supply port (531) by adjusting the length of the compression spring (562). A deep-sea mining mixed transport system is characterized in that an end cover is provided to seal the lower end surface of the valve body (530), and fixing plates (507) are formed so as to extend from both the lower end cover of the valve body (530) and the upper end cover of the hydraulic cylinder (513), and the fixing plates (507) fix the automatic control hydraulic cylinder (5) to the ore material supply pipe (2).

2. In a deep-sea mining mixed transport system, which includes sequentially arranged hoses (A06), relay stations (A04), and lift hard pipes (A02), with a hose pump (A05) attached to the hose (A06) and a mixed-flow pump (A03) attached to the lift hard pipe (A02), the inlet of the hose (A06) is located in an ore material stack (A07) and the outlet of the lift hard pipe (A02) is connected to a mother ship (A01), The relay station (A04) has a bunker (1), the upper end of which is an entrance, and the lower end of which is connected to a sealed ore material control cylinder (3), and an ore material supply pipe (2) is inserted coaxially into the ore material control cylinder (3) with a gap, and the ore material supply pipe (2) extends upward through the ore material control cylinder (3) into the bunker (1), with the lower end of the ore material supply pipe (2) protruding from the ore material control cylinder (3) and lifting A multiple ore material supply port mesh (22) is provided on the side wall of the ore material supply pipe (2), which is fixedly connected to the hard pipe (A02) and extends into the bunker (1). The ore material supply port mesh (22) is 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), and a seawater inlet (37) into which seawater can flow is provided in the guide flange (36). Below the ore material control cylinder (3) is an automatic control hydraulic cylinder (5) connected to the side wall of the ore material supply pipe (2). The automatic control hydraulic cylinder (5) has a piston end at its upper end and is hinged to the lower end of the ore material control cylinder (3), allowing it to move up and down in conjunction with the ore material control cylinder (3). The automatic control 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) so as to be sealed directly below it. An axial first oil port (a) is provided 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 provided on the side wall of the valve body (530). The first oil port (a) communicates with the rodless cavity of the hydraulic cylinder (513), and the second oil port (b) communicates with the rod-bearing cavity of the hydraulic cylinder (513). The control valve (52) includes a valve body (530), an indicator valve core (53), and a follow valve core (505). The indicator valve core (53) includes a valve core sleeve (511) and a valve core shaft (512). The lower end of the indicator valve core (53) protrudes downward in a sealed manner from the outside of the valve body (530) and is fixedly connected to a control rod (508). The follow valve core (505) is fitted between the valve core sleeve (511) and the valve core shaft (512) and its upper end 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 helical 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 follow 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), driving the piston (502) up and down, and the follow valve core (505) is rotated in conjunction with the deflection direction set by the indicator valve core (53), setting the axial position in which the piston (502) stops in the hydraulic cylinder (513), and when the piston (502) reaches the set position, the follow valve core (505) automatically closes the first and second oil ports (a, b) and connects the oil supply port (531) and the oil discharge port (532), A deep-sea mining and transport system characterized in that, instead of the ore material control cylinder (3), an ore material control cylinder assembly (6) is used, and the ore material control cylinder assembly (6) consists of a tubular cone ring (31), a spiral scraper (32), a partition plate (34), and an ore material partition cylinder (33) from top to bottom, an ore material supply pipe (2) is inserted into the ore material control cylinder assembly (6) with a gap, at least one automatic control hydraulic cylinder (5) is fixedly connected to the ore material supply pipe (2) in the axial direction, the hydraulic cylinder of the automatic control hydraulic cylinder (5) is a single-acting hydraulic cylinder, and the tip of the upper piston rod of the automatic control hydraulic cylinder (5) is hinged to the lower part of the ore material partition cylinder (33).

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