A deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system

Abstract

The present invention discloses a double-station alternating ore collection system for in-situ backfilling of tailings of deep-sea rare earth mining, comprising two linear guide rails installed at the bottom of a mine car body, each of the linear guide rails being equipped with a telescopic assembly through its carrier, the telescopic assembly being capable of being horizontally moved by the linear guide rails in a direction parallel to the direction of travel, a collection tube capable of independent vertical extension and contraction being provided on the movable portion of the telescopic assembly, and the collection tube being capable of being driven by the telescopic assembly to move horizontally perpendicular to the direction of travel. The present invention adopts a double-station alternating ore collection method, by arranging two linear guide rails and two telescopic assemblies at the bottom of the mine car body to control the two collection tubes, so that after any collection tube completes collection, it will be transferred to two stations in the mining direction by the cooperation of the linear guide rails and the telescopic assembly, so that the two collection tubes can realize double-station uninterrupted alternating ore collection, effectively improving the ore collection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of deep-sea mining, and in particular to a deep-sea rare earth mining tailings in-situ backfilling type double-station alternating ore collection system. Background Art

[0002] Deep-sea rare earth resources refer to rare metal elements found in seabed sediments, which are mainly distributed in deep-sea sediments. Collecting rare earths from deep-sea sediments requires the use of a deep-sea mining system to collect minerals on the seabed.

[0003] Currently, the commonly used ore collection system is usually a single-station ore collection system, including a mud collection pipe, a feeding assembly, and a mixing assembly. The mud collection pipe and the mixing assembly are mainly extended into the bottom of the sea layer to form a pit. The feeding assembly injects high-density filler into the pit from all sides of the mud collection pipe to squeeze the mud in the pit out of the mud collection pipe to complete the ore collection. After the ore collection is completed here, the mud collection pipe needs to be retracted and the entire device moved to another station to further collect ore from the bottom of the sea layer. Although this method can achieve deep-sea rare earth mining, the single-station working mode requires stopping the ore collection and transferring it when switching stations, resulting in interruptions and affecting mining efficiency.

[0004] Therefore, the commonly used ore collection system needs to interrupt mining when switching between single-station mining, resulting in the discontinuity of the mining process and affecting mining efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system to solve the technical problem in the existing technology that single-station mining needs to be interrupted when switching stations, resulting in the inability to continue the mining process and affecting the mining efficiency.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system comprises two linear guide rails mounted on the bottom of a mine car body, each linear guide rail having a telescopic assembly mounted on its carrier position, the telescopic assembly being capable of being moved horizontally parallel to the direction of travel by the linear guide rails, and a collection tube capable of independent vertical extension and contraction being provided on the movable portion of the telescopic assembly, the collection tube being capable of being driven by the telescopic assembly to move horizontally perpendicular to the direction of travel;

[0008] When the two linear guide rails translate the two telescopic assemblies out of position, the two telescopic assemblies push the two collection pipes to the working position, and the two collection pipes extend downward in sequence along the direction of travel and drill into the seabed, and suck deep-sea sediments into the mining vehicle body for processing, so as to separate rare earth ore and tailings;

[0009] And when the previous collection pipe reaches the lowest position and the collection is completed, it retracts upward. At the same time, the mine car body discharges the tailings from the collection pipe in situ and backfills it. After the collection pipe is reset, the telescopic assembly connected to it pulls the collection pipe back from the working position to the adjustment position, and the corresponding linear guide drives the telescopic assembly and the collection pipe to move horizontally in the travel direction at the adjustment position. At the same time, the mine car body moves forward and the other linear guide drives the other telescopic assembly backward at the same speed, keeping the other collection pipe stationary and forming an offset movement with the previous collection pipe, so as to move the collection pipe forward two working positions to be in front of the other collection pipe, and the two collection pipes work in this alternating cycle to form alternating ore collection.

[0010] As a preferred solution of the present invention, the linear guide rail includes a fixed plate frame, the fixed plate frame is installed at the bottom of the mining car body, and a guide rod is provided on the fixed plate frame;

[0011] A slide plate is provided on the guide rod, and the slide plate can slide on the guide rod along the axial direction thereof, and the telescopic assembly is fixed on the slide plate to move horizontally with the slide plate.

[0012] As a preferred solution of the present invention, the telescopic assembly includes a plurality of telescopic cylinders, the fixed parts of the telescopic cylinders are vertically mounted on the slides, and the movable parts of the telescopic cylinders are placed in the area between two of the slides;

[0013] The movable parts of the plurality of telescopic cylinders are commonly mounted with a mounting plate, and the collection tube is fixed on the mounting plate;

[0014] Wherein, the collection tube is located between the plurality of telescopic cylinders, and the collection tube is slidably connected to the fixed portion of the telescopic cylinder.

[0015] As a preferred embodiment of the present invention, the collection tube includes a multi-stage telescopic tube, the fixed portion of the multi-stage telescopic tube is fixed to the mounting plate, and a collection head is provided at the bottom of the multi-stage telescopic tube. The collection head can rotate so as to rotate and stir the seabed sediment when the lower end of the multi-stage telescopic tube extends into the seabed.

[0016] As a preferred embodiment of the present invention, the collection head includes a drill body, the drill body is arranged at the bottom of the multi-stage telescopic tube, and a plurality of blades are provided on the peripheral wall of the drill body, and the plurality of blades are equidistantly arranged around the drill body;

[0017] Wherein, a telescopic shaft is provided on the drill body, the telescopic shaft is placed in the multi-stage telescopic tube, each stage of the telescopic shaft is connected to each stage of the multi-stage telescopic tube, and the telescopic shaft is connected to a power box in the mining car body.

[0018] As a preferred solution of the present invention, a lifting pump is provided in the mine car body, and the negative pressure end of the lifting pump is connected to the fixed part of the multi-stage telescopic tube to generate negative pressure in the multi-stage telescopic tube, so that the multi-stage telescopic tube can suck seabed sediments into the mine car body.

[0019] As a preferred embodiment of the present invention, a rare earth separator is provided in the mine car body, the rare earth separator is connected to the positive pressure end of the lift pump, and the rare earth separator is used to separate the rare earth in the seabed sediment from the tailings;

[0020] The rare earth separator is provided with two outlets for discharging the separated rare earth and tailings respectively.

[0021] As a preferred embodiment of the present invention, a storage bin is provided in the mine car body, the storage bin including a rare earth bin and a tailings retention bin, the rare earth bin and the tailings retention bin are respectively connected to the two outlets of the rare earth separator through telescopic pipes to receive the separated rare earth and tailings respectively;

[0022] The lower side wall of the tailings detention bin is connected to the multi-stage telescopic pipe via a second telescopic pipe, so that the tailings can be discharged from the multi-stage telescopic pipe in situ during the resetting process of the multi-stage telescopic pipe.

[0023] As a preferred solution of the present invention, a telescopic discharge pipe is provided in the multi-stage telescopic tube, the end of the second telescopic pipeline passes through the side wall of the multi-stage telescopic tube and is connected to the upper end of the telescopic discharge pipe, and the lower end of the telescopic discharge pipe is close to the drill body to discharge and backfill the tailings in the tailings retention bin from the front end of the drill body.

[0024] As a preferred solution of the present invention, a water pump is installed on the slide, and a corrugated hose is provided at the output end of the water pump. The corrugated hose passes through the multi-stage telescopic tube and is arranged along the outer wall of the telescopic tube shaft, and the water outlet end of the corrugated hose is close to the drill body.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention adopts a double-station alternating ore collection method. Two linear guide rails and two telescopic components are arranged at the bottom of the mine car body to control the two collection pipes. After any collection pipe completes collection, the linear guide rails and the telescopic components will cooperate to transfer the two stations toward the mining direction, so that the two collection pipes can realize double-station uninterrupted alternating ore collection, effectively improving the ore collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0028] Figure 1 A schematic structural diagram of a deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the internal structure of a mining vehicle body of a deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system provided by an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the structure of a multi-stage telescopic pipe portion of a deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system provided by an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the double-station alternating operation of a deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system provided in an embodiment of the present invention.

[0032] The numbers in the figure represent the following:

[0033] 1- mining car body; 2- linear guide rail; 3- telescopic assembly; 4- collection pipe; 5- water pump;

[0034] 11-lift pump; 12-rare earth separator; 13-storage bin; 14-track wheel; 21-fixed plate frame; 22-guide rod; 23-slide plate; 31-telescopic cylinder; 32-mounting plate; 41-multi-stage telescopic tube; 42-collection head; 51-corrugated hose;

[0035] 131-rare earth bin; 132-tailings retention bin; 133-first telescopic pipeline; 134-second telescopic pipeline; 135-telescopic discharge pipe; 421-drill body; 422-blade; 423-telescopic pipe shaft. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] like Figure 1 、 Figure 2 、 Figure 4 As shown, the present invention provides a deep-sea rare earth mining tailings in-situ backfilling dual-station alternating ore collection system, comprising two linear guide rails 2 mounted on the bottom of a mine car body 1, each linear guide rail 2 being mounted with a telescopic assembly 3 through its bearing position, the telescopic assembly 3 being capable of being horizontally moved parallel to the direction of travel by the linear guide rail 2, the movable portion of the telescopic assembly 3 being provided with a collection pipe 4 capable of independent vertical extension and contraction, and the collection pipe 4 being capable of being driven by the telescopic assembly 3 to move horizontally perpendicular to the direction of travel;

[0038] Among them, when the two linear guide rails 2 translate the two telescopic components 3 out of position, the two telescopic components 3 push the two collection pipes 4 to the working position, and the two collection pipes 4 extend downward in sequence along the direction of travel and drill into the seabed, and suck deep-sea sediments into the mining car body 1 for processing, so as to separate rare earth ore and tailings;

[0039] And when the current collection tube 4 reaches the lowest position and the collection is completed, it retracts upward. At the same time, the mine car body 1 discharges the tailings from this collection tube 4 in situ and backfills it. After this collection tube 4 is reset, the telescopic assembly 3 connected to it pulls this collection tube 4 back from the working position to the adjustment position, and the corresponding linear guide rail 2 drives the telescopic assembly 3 and this collection tube 4 to move horizontally in the direction of travel at the adjustment position. At the same time, the mine car body 1 moves forward and another linear guide rail 2 drives another telescopic assembly 3 backward at the same speed, keeping the other collection tube 4 stationary and forming an offset movement with the previous collection tube 4, so as to move this collection tube 4 forward two working positions and place it in front of the other collection tube 4, and the two collection tubes 4 work in this alternating cycle to form a double-station alternating ore collection.

[0040] The ore collecting system of the present invention mainly arranges two parallel distributed linear guide rails 2 at the bottom of the mine car body 1, and arranges a telescopic component 3 on the loading position of the linear guide rail 2, so that the two telescopic components 3 are arranged oppositely, so that after the collection tube 4 is installed on the telescopic component 3, the two collection tubes 4 are adjacently distributed between the two linear guide rails 2. Therefore, when collecting ore, when one of the collection tubes 4 completes collection, it will be transferred in the direction of travel by the telescopic component 3 and the linear guide rail 2. At the same time, the mine car body 1 also moves forward, so that it forms an offset movement with the other collection tube 4. When it moves to the previous position of the other collection tube 4, the telescopic component 3 pushes the collection tube 4 to the working position, and the collection tube 4 extends downward for collection until the collection tube 4 reaches the bottom, and the other collection tube 4 is reset and recovered, thereby realizing cyclic alternating ore collection, effectively improving the efficiency of ore collection, and during the reset and recovery process of the collection tube 4, the mine car body 1 can discharge the tailings from its interior into the mine pit, realizing in-situ backfilling.

[0041] Specifically, the two collection pipes 4 are divided into No. 1 and No. 2. The two linear guide rails 2 move the No. 1 and No. 2 collection pipes 4 to be staggered and out of position in the adjustment position. After that, in the order of the travel direction, the No. 1 collection pipe 4 extends downward into the seabed sediment to collect ore, and sucks in the seabed sediment while extending downward. After the No. 1 collection pipe 4 extends to the bottom, it keeps sucking and collecting, and then the No. 2 collection pipe 4 extends downward into the seabed sediment to collect ore and sucks in the seabed sediment while extending downward.

[0042] When the No. 2 collection pipe 4 extends to the bottom and keeps sucking, at the same time, the No. 1 collection pipe 4 stops sucking, and the mine car body 1 turns to discharge the tailings into the No. 1 collection pipe 4 and falls into this pit, and the No. 1 collection pipe 4 shrinks upward and resets, and the tailings continue to be backfilled in situ.

[0043] When the No. 1 collection tube 4 is fully reset, the telescopic assembly 3 pulls the No. 1 collection tube 4 to the adjustment position. At this time, the linear guide rail 2 drives the telescopic assembly 3 to move in the direction of travel. At the same time, the mining car body 1 also moves in the direction of travel, and the other linear guide rail 2 drives the telescopic assembly 3 and the other No. 2 collection tube 4 in the opposite direction at the same speed (that is, controls the slider of the linear guide rail 2 to move in the opposite direction), so that the No. 2 collection tube 4 is relatively stationary to maintain mining, and the No. 1 collection tube 4 is dislocated and moved to the front of the No. 2 collection tube 4.

[0044] And when the No. 1 collection pipe 4 is adjusted to the previous working position of the No. 2 collection pipe 4 and stops, the telescopic component 3 pushes the No. 1 collection pipe 4 to the working position, and the No. 1 collection pipe 4 extends downward into the seabed sediment to collect ore, and sucks in the seabed sediment while extending downward. After the No. 1 collection pipe 4 extends to the bottom, it keeps sucking and collecting. At the same time, the No. 2 collection pipe 4 stops sucking and retracts upward to reset, and the mine car body 1 turns to discharge the tailings into the No. 2 collection pipe 4 and drops it into this pit, realizing the in-situ backfill of the tailings.

[0045] Based on this process, the first and second collection pipes 4 operate alternately in a cyclical, staggered manner, achieving the dual-station alternating collection effect of tailings in-situ backfill. When one collection pipe 4 reaches the bottom, the other collection pipe 4 retracts and resets, preventing pit collapse.

[0046] Compared with the existing single-station ore collection system, the present invention adopts a double-station uninterrupted staggered working mode. By setting two collection tubes 4, and each collection tube 4 corresponds to a telescopic component 3 and a linear guide rail 2, the linear guide rail 2 and the telescopic component 3 are used to cooperate with the mine car body 1 to move forward to complete the staggered movement of the collection tube 4. After the collection tube 4 completes the collection, it automatically switches forward to the two stations to continue working, realizing uninterrupted alternating ore collection and improving the ore collection efficiency.

[0047] Based on the above embodiment, a preferred embodiment of a linear guide rail 2 is provided below.

[0048] like Figure 2 、 Figure 4 As shown, the linear guide rail 2 includes a fixed plate frame 21, which is installed at the bottom of the mining car body 1, and a guide rod 22 is provided on the fixed plate frame 21;

[0049] A slide plate 23 is provided on the guide rod 22 . The slide plate 23 can slide on the guide rod 22 along its axial direction, and the telescopic assembly 3 is fixed on the slide plate 23 so as to move horizontally with the slide plate 23 .

[0050] Specifically, the slide 23 slides on the guide rod 22. The slide 23 can be hydraulically driven or electrically driven. When the slide 23 moves horizontally on the guide rod 22, the telescopic assembly 3 and the collection tube 4 move horizontally synchronously with the slide 23, thereby realizing the position adjustment of the collection tube 4.

[0051] Based on the above embodiment, a preferred embodiment of the telescopic assembly 3 is provided below.

[0052] like Figure 2 、 Figure 4 As shown, the telescopic assembly 3 includes a plurality of telescopic cylinders 31 , the fixed portion of the telescopic cylinder 31 is vertically mounted on the slide 23 , and the movable portion of the telescopic cylinder 31 is placed in the area between the two slides 23 ;

[0053] The movable parts of the multiple telescopic cylinders 31 are commonly mounted with a mounting plate 32, and the collection tube 4 is fixed on the mounting plate 32;

[0054] The collecting tube 4 is located between the multiple telescopic cylinders 31 , and the collecting tube 4 is slidably connected to the fixed parts of the telescopic cylinders 31 .

[0055] Specifically, the telescopic assembly 3 is composed of multiple telescopic cylinders 31 and a mounting plate 32, and the mounting plate 32 is fixed on the collection tube 4. The multiple telescopic cylinders 31 can push or pull the collection tube 4 through the mounting plate 32, that is, control one of the collection tubes 4 to be aligned adjacent to or staggered with another collection tube 4.

[0056] Based on the above embodiment, a preferred embodiment of the collection tube 4 is provided below.

[0057] like Figure 2 、 Figure 3 As shown, the collection pipe 4 includes a multi-stage telescopic tube 41, the fixed portion of the multi-stage telescopic tube 41 is fixed on the mounting plate 32, and a collection head 42 is provided at the bottom of the multi-stage telescopic tube 41. The collection head 42 can rotate so as to rotate and stir the seabed sediment when the lower end of the multi-stage telescopic tube 41 extends into the seabed.

[0058] Specifically, the collection tube 4 consists of a multi-stage telescopic tube 41 and a collection head 42. The collection head 42 can rotate at the bottom of the multi-stage telescopic tube 41. When the multi-stage telescopic tube 41 is extended to the seabed, the collection head 42 can rotate to loosen the seabed sediment, making it easier to be sucked into the multi-stage telescopic tube 41. In addition, during the rotation process, the collection head 42 can dilute the sediment, thereby preventing viscous sediment from clogging the multi-stage telescopic tube 41.

[0059] Of course, the collecting head 42 needs to be able to quickly loosen the sea mud and quickly dilute the viscous sea mud. Based on this, the following preferred embodiments are provided.

[0060] like Figure 3 As shown, the collection head 42 includes a drill body 421, which is disposed at the bottom of the multi-stage telescopic tube 41, and a plurality of blades 422 are disposed on the peripheral wall of the drill body 421. The plurality of blades 422 are equidistantly disposed around the drill body 421.

[0061] Among them, a telescopic shaft 423 is provided on the drill body 421, and the telescopic shaft 423 is placed in the multi-stage telescopic tube 41. Each level of the telescopic shaft 423 is connected to each level of the multi-stage telescopic tube 41, and the telescopic shaft 423 is connected to the power box in the mining car body 1.

[0062] Specifically, the collection head 42 uses a tapered drill body 421 that can easily drill into the sea mud, and the blades 422 on the sides of the drill body 421 can further rotate and thin the surrounding sediment, thereby effectively preventing viscous sediment from being sucked into the multi-stage telescopic tube 41;

[0063] The telescopic tube shaft 423 is connected to each stage of the multi-stage telescopic tube 41 and telescopes synchronously.

[0064] Among them, the telescopic shaft 423 is used to obtain power from the mining car body 1, so the telescopic shaft 423 can stably drive the drill body 421 to rotate. The power box is a conventional motor and gear box, and the gear box is connected to the telescopic shaft 423 by gear transmission. It belongs to conventional technology and will not be repeated here.

[0065] Since the seabed sediments are relatively viscous, they are still difficult to absorb even if they are diluted by the blades of the drill body 421. Therefore, in order to facilitate the suction of sediments, the following preferred embodiments are provided.

[0066] like Figure 1 、 Figure 2 As shown, a water pump 5 is installed on the slide 23, and a corrugated hose 51 is provided at the output end of the water pump 5. The corrugated hose 51 passes through the multi-stage telescopic tube 41 and is arranged along the outer wall of the telescopic tube shaft 423, and the water outlet end of the corrugated hose 51 is close to the drill body 421.

[0067] In this embodiment, the water pump 5 is started when the drill body 421 rotates. When the water pump 5 is started, the water pump 5 draws in seawater and sprays it out through the corrugated hose 51. The water outlet port of the corrugated hose 51 is close to the drill body 421, which can effectively dilute the surrounding sediments and make them easier to extract.

[0068] Of course, the operation of the multi-stage telescopic tube 41 requires the mine car body 1 to provide negative pressure suction, such as Figure 2 As shown, a lifting pump 11 is provided in the mine car body 1, and the negative pressure end of the lifting pump 11 is connected to the fixed part of the multi-stage telescopic tube 41 to generate negative pressure in the multi-stage telescopic tube 41, so that the multi-stage telescopic tube 41 can suck the seabed sediment into the mine car body 1.

[0069] Specifically, the negative pressure end of the lifting pump 11 generates negative pressure in the multi-stage telescopic tube 41, so that when the lower end of the multi-stage telescopic tube 41 touches the bottom, the sediment broken up by the collection head 42 can be sucked into the mining car body 1 for collection.

[0070] The collected sediment contains some rare earths, while the rest is tailings, which need to be separated in the mine car body 1. Figure 2 As shown, a rare earth separator 12 is provided in the mine car body 1, and the rare earth separator 12 is connected to the positive pressure end of the lifting pump 11. The rare earth separator 12 is used to separate the rare earth in the seabed sediment from the tailings;

[0071] The rare earth separator 12 has two outlets for discharging the separated rare earth and tailings respectively.

[0072] Specifically, a rare earth separator 12 is provided inside the mine car body 1 , and the rare earth separator 12 can separate rare earth from tailings and discharge them separately. The rare earth separator 12 is an existing technology and will not be described in detail.

[0073] After rare earth and tailings are separated and discharged in the mine car body 1, they need to be stored to avoid rare earth and tailings being scattered inside the mine car body 1. Figure 1 、 Figure 2 As shown, a storage bin 13 is provided in the mine car body 1, and the storage bin 13 includes a rare earth bin 131 and a tailings retention bin 132. The rare earth bin 131 and the tailings retention bin 132 are respectively connected to the two outlets of the rare earth separator 12 through a first telescopic pipe 133 to respectively receive the separated rare earth and tailings.

[0074] Specifically, by setting a rare earth bin 131 and a tailings retention bin 132 in the mine car body 1, the rare earth separator 12 separates and processes the discharged rare earth and tailings, and transports them to the rare earth bin 131 and the tailings retention bin 132 for storage through two first telescopic pipes 133 respectively.

[0075] Of course, the tailings in the mine car body 1 have no use value and need to be discharged from the mine car body 1 after mining to avoid the tailings taking up too much space and affecting the storage space of rare earths. Figure 2 、 Figure 3 As shown, the lower side wall of the tailings retention bin 132 is connected to the multi-stage telescopic pipe 41 via a second telescopic pipe 134 so that the tailings can be discharged from the multi-stage telescopic pipe 41 in situ during the resetting process of the multi-stage telescopic pipe 41 .

[0076] Specifically, when the mine car body 1 needs to discharge the tailings in the tailings retention bin 132 to the mining pit for in-situ backfilling, the mine car body 1 guides the tailings into the multi-stage telescopic tube 41 through the second telescopic pipe 134, and since the multi-stage telescopic tube 41 stops suction at this time, the tailings can quickly enter the multi-stage telescopic tube 41 and fall into the pit.

[0077] Furthermore, a telescopic discharge pipe 135 is provided in the multi-stage telescopic tube 41, and the end of the second telescopic pipeline 134 passes through the side wall of the multi-stage telescopic tube 41 and is connected to the upper end of the telescopic discharge pipe 135, and the lower end of the telescopic discharge pipe 135 is close to the drill body 421, so as to discharge and backfill the tailings in the tailings retention bin 132 from the front end of the drill body 421.

[0078] Specifically, the tailings are directly discharged into the bottom drill body 421 of the multi-stage telescopic tube 41 through the telescopic discharge pipe 135, so that the drill body 421 can stir the discharged tailings so that they can be evenly distributed in the pit for backfilling.

[0079] During the ore collection process, due to the length limitation of the linear guide rail 2, the mine car body 1 needs to travel to complete the long-distance double-station uninterrupted alternating ore collection, such as Figure 1 、 Figure 2 As shown, crawler wheels 14 are provided on both sides of the mining vehicle body 1, and the crawler wheels 14 are used to drive the mining vehicle body 1 to move in the mining direction;

[0080] There is a height difference between the track wheel 14 and the bottom of the mining vehicle body 1 . After the collection tube 4 is fully retracted, its lower end is located above the bottom of the track wheel 14 .

[0081] Specifically, the mining car body 1 travels on crawler wheels 14. When the mining tube 4 is fully retracted, its lower end is located above the bottom of the crawler wheels 14, without affecting the movement of the mining car body 1. Furthermore, during travel, the linear guide rails 2 must cooperate with the crawler wheels 14. That is, when the mining car body 1 travels, it is necessary to ensure that the mining tube 4 being mined does not move. Specifically, the linear guide rails 2 move relative to the mining car body 1 in the opposite direction to ensure that the mining tube 4 is not affected.

[0082] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A deep-sea rare earth mining tailings in-situ backfilling type double-station alternating ore collection system, characterized in that: The invention comprises two linear guide rails (2) installed at the bottom of a mine car body (1), each of the linear guide rails (2) being provided with a telescopic assembly (3) through its carrier, the telescopic assembly (3) being able to be moved horizontally parallel to the direction of travel by the linear guide rails (2), a collection tube (4) being able to independently telescope vertically being provided on the movable part of the telescopic assembly (3), and the collection tube (4) being able to be driven by the telescopic assembly (3) to move horizontally perpendicular to the direction of travel; When the two linear guide rails (2) move the two telescopic assemblies (3) to different positions, the two telescopic assemblies (3) push the two collection pipes (4) to the working position, and the two collection pipes (4) extend downward in sequence along the direction of travel and drill into the seabed, and suck deep-sea sediments into the mine car body (1) for processing, so as to separate rare earth ore and tailings; When the first collection pipe (4) reaches the lowest position and the collection is completed, it retracts upwards. At the same time, the mine car body (1) discharges the tailings from the collection pipe (4) in situ and backfills it. After the collection pipe (4) is reset, the telescopic assembly (3) connected thereto pulls the collection pipe (4) back from the working position to the adjustment position, and the corresponding linear guide rail (2) drives the telescopic assembly (3) and the collection pipe (4) to move horizontally along the travel direction at the adjustment position. At the same time, the mine car body (1) moves forward and the other linear guide rail (2) drives the other telescopic assembly (3) backward at the same speed, keeping the other collection pipe (4) stationary and forming an offset movement with the previous collection pipe (4), so as to move the collection pipe (4) forward by two working positions and to be located in front of the other collection pipe (4), and the two collection pipes (4) work in this alternating cycle to form alternating ore collection; The collection tube (4) comprises a multi-stage telescopic tube (41), a collection head (42) is provided at the bottom of the multi-stage telescopic tube (41), and the collection head (42) is rotatable; The collecting head (42) comprises a drill body (421), the drill body (421) is arranged at the bottom of the multi-stage telescopic tube (41), a plurality of blades (422) are arranged on the peripheral wall of the drill body (421), a telescopic tube shaft (423) is arranged on the drill body (421), and the telescopic tube shaft (423) is placed in the multi-stage telescopic tube (41); A rare earth separator (12) is provided in the mine car body (1), and a storage bin (13) is provided in the mine car body (1). The storage bin (13) includes a rare earth bin (131) and a tailings retention bin (132). The rare earth bin (131) and the tailings retention bin (132) are respectively connected to two outlets of the rare earth separator (12) via a first telescopic pipe (133) to respectively receive the separated rare earth and tailings. The lower side wall of the tailings retention bin (132) is connected to the multi-stage telescopic pipe (41) via a second telescopic pipe (134); A telescopic discharge pipe (135) is provided in the multi-stage telescopic pipe (41), the end of the second telescopic pipeline (134) passes through the side wall of the multi-stage telescopic pipe (41) and is connected to the upper end of the telescopic discharge pipe (135), and the lower end of the telescopic discharge pipe (135) is close to the drill body (421) to discharge the tailings in the tailings retention bin (132) from the front end of the drill body (421) for backfilling.

2. The deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system according to claim 1, characterized in that: The linear guide rail (2) comprises a fixed plate frame (21), the fixed plate frame (21) is mounted on the bottom of the mining vehicle body (1), and a guide rod (22) is provided on the fixed plate frame (21); A slide plate (23) is provided on the guide rod (22), and the slide plate (23) can slide on the guide rod (22) along its axial direction, and the telescopic assembly (3) is fixed on the slide plate (23) to move horizontally with the slide plate (23).

3. The deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system according to claim 2, characterized in that: The telescopic assembly (3) comprises a plurality of telescopic cylinders (31), wherein the fixed portion of the telescopic cylinders (31) is vertically mounted on the slide plate (23), and the movable portion of the telescopic cylinders (31) is placed in the area between two slide plates (23); The movable parts of the plurality of telescopic cylinders (31) are commonly mounted with a mounting plate (32), and the collection tube (4) is fixed on the mounting plate (32); The collection tube (4) is located between the plurality of telescopic cylinders (31), and the collection tube (4) is slidably connected to the fixed portion of the telescopic cylinder (31).

4. The deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system according to claim 3, characterized in that: The fixing portion of the multi-stage telescopic tube (41) is fixed on the mounting plate (32).

5. The deep-sea rare earth mining tailings in-situ backfilling double-station alternating ore collection system according to claim 4, characterized in that: A plurality of blades (422) are equidistantly arranged around the drill body (421); Wherein, each stage of the telescopic tube shaft (423) is connected to each stage of the multi-stage telescopic tube (41).

6. The deep-sea rare earth mining tailings in-situ backfilling type double-station alternating ore collection system according to claim 5, characterized in that: A lifting pump (11) is provided in the mine car body (1), and a negative pressure end of the lifting pump (11) is connected to a fixed portion of the multi-stage telescopic tube (41) to generate negative pressure in the multi-stage telescopic tube (41), so that the multi-stage telescopic tube (41) can suck seabed sediments into the mine car body (1).

7. The deep-sea rare earth mining tailings in-situ backfilling type double-station alternating ore collection system according to claim 6, characterized in that: The rare earth separator (12) is connected to the positive pressure end of the lift pump (11), and the rare earth separator (12) is used to separate rare earths from tailings in seabed sediments; The rare earth separator (12) is provided with two outlets for respectively discharging the separated rare earth and tailings.

8. The deep-sea rare earth mining tailings in-situ backfilling type double-station alternating ore collection system according to claim 2, characterized in that: A water pump (5) is installed on the slide (23), and a corrugated hose (51) is provided at the output end of the water pump (5). The corrugated hose (51) penetrates into the multi-stage telescopic tube (41) and is provided along the outer wall of the telescopic tube shaft (423), and the water outlet end of the corrugated hose (51) is close to the drill body (421).

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