Deep sea rare earth mining tailing in-situ backfill type double-station alternate ore collecting system

Abstract

The invention discloses a deep sea rare earth mining tailing in-situ backfill type double-station alternate mine collecting system which comprises two linear guide rails installed at the bottom of a mine car body, each linear guide rail is provided with a telescopic assembly through a carrying position of the linear guide rail, and the telescopic assemblies can be horizontally moved by the linear guide rails in the direction parallel to the advancing direction. A collecting pipe capable of independently and vertically stretching out and drawing back is arranged on a movable part of the telescopic assembly, and the collecting pipe can be driven by the telescopic assembly to horizontally move in the direction perpendicular to the advancing direction. A double-station alternate mine collection mode is adopted, and the two linear guide rails and the two telescopic assemblies are arranged at the bottom of the mine car body to control the two collection pipes, so that after any collection pipe completes collection, the collection pipes can be transferred to two stations in the mining direction through cooperation of the linear guide rails and the telescopic assemblies; the two collecting pipes can achieve double-station uninterrupted alternate ore collection, and the ore collection efficiency is effectively improved.

Description

Technical Field

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

[0002] Deep - sea rare - earth resources refer to rare metal elements found in submarine sediments, which are mainly distributed in deep - sea sediments. To collect rare earths in deep - sea sediments, a deep - sea ore - collecting system is required to collect ore on the seabed.

[0003] Currently, the commonly used ore - collecting system is usually a single - station ore - collecting system, including a mud - collecting pipe, a feeding component, and a stirring component. It mainly forms a pit by extending the mud - collecting pipe and the stirring component to the bottom of the sea layer, and the feeding component injects high - density filler into the pit from the surrounding of the mud - collecting pipe to squeeze the mud in the pit out through the mud - collecting pipe to complete ore collection. After ore collection is completed here, the mud - collecting pipe needs to be retracted and the entire device needs to be moved to another station to penetrate the bottom of the sea layer again for ore collection. Although this method can achieve deep - sea rare - earth mining, due to the single - station working mode, when switching stations, ore collection needs to be stopped for transfer, resulting in interruption and affecting the mining efficiency.

[0004] Therefore, the commonly used ore - collecting system needs to interrupt mining when switching stations due to single - station mining, resulting in the inability to continuously carry out the mining process and affecting the 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 type double - station alternating ore - collecting system to solve the technical problem that in the prior art, due to single - station mining, mining needs to be interrupted when switching stations, resulting in the inability to continuously carry out the mining process and affecting the mining efficiency.

[0006] To solve the above - mentioned technical problem, the present invention specifically provides the following technical solutions: A deep - sea rare - earth mining tailings in - situ backfilling type double - station alternating ore - collecting system, including two linear guide rails installed at the bottom of the ore - truck body. Each of the linear guide rails is equipped with a telescopic component through its load position. The telescopic component can be horizontally moved by the linear guide rail parallel to the traveling direction. An independently vertically telescopic collecting pipe is arranged on the movable part of the telescopic component, and the collecting pipe can be driven by the telescopic component to horizontally move perpendicular to the traveling direction; Among them, when the two linear guide rails translate the two telescopic components to different positions, the two telescopic components push the two collecting pipes to the working positions. The two collecting pipes sequentially extend downward into the seabed along the traveling direction and suck deep - sea sediments into the ore - truck body for treatment to separate and obtain rare - earth ore and tailings; And after the previous collection pipe reaches the lowest position and finishes collection, it shrinks upward. At the same time, the ore car body discharges the tailings in place from this collection pipe for backfilling. And after this collection pipe resets, the telescopic assembly connected to it pulls this collection pipe back from the working position to the adjustment position. And the corresponding linear guide drives the telescopic assembly and this collection pipe to translate along the traveling direction at the adjustment position. At the same time, the ore 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 a staggered movement with the previous collection pipe, so as to move this collection pipe forward by two working positions in front of the other collection pipe. And the two collection pipes work alternately in this cycle to form alternate ore collection.

[0007] As a preferred embodiment of the present invention, the linear guide includes a fixed plate frame, the fixed plate frame is installed at the bottom of the ore car body, and a guide rod is arranged on the fixed plate frame; A sliding plate is arranged on the guide rod, the sliding plate can slide along the axial direction of the guide rod, and the telescopic assembly is fixed on the sliding plate to move horizontally along with the sliding plate.

[0008] As a preferred embodiment of the present invention, the telescopic assembly includes a plurality of telescopic cylinders, the fixed part of the telescopic cylinder is vertically installed on the sliding plate, and the movable part of the telescopic cylinder is placed in the area between the two sliding plates; An installation plate is commonly installed on the movable parts of the plurality of telescopic cylinders, and the collection pipe is fixed on the installation plate; Wherein, the collection pipe is located between the plurality of telescopic cylinders, and the collection pipe is slidably connected to the fixed part of the telescopic cylinder.

[0009] As a preferred embodiment of the present invention, the collection pipe includes a multi-stage telescopic pipe, the fixed part of the multi-stage telescopic pipe is fixed on the installation plate, a collection head is arranged at the bottom of the multi-stage telescopic pipe, and the collection head can rotate to rotate and stir the seabed sediments when the lower end of the multi-stage telescopic pipe extends into the seabed.

[0010] 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 pipe, and a plurality of cutter wings are arranged on the peripheral wall of the drill body, and the plurality of cutter wings are arranged equidistantly around the drill body; Wherein, a telescopic pipe shaft is arranged on the drill body, the telescopic pipe shaft is placed in the multi-stage telescopic pipe, all levels of the telescopic pipe shaft are connected to all levels of the multi-stage telescopic pipe, and the telescopic pipe shaft is connected to a power box in the ore car body.

[0011] As a preferred embodiment of the present invention, a lifting pump is provided inside the ore cart body. The negative pressure end of the lifting pump is connected to the fixed part of the multi-stage telescopic pipe to generate negative pressure inside the multi-stage telescopic pipe, enabling the multi-stage telescopic pipe to suck seabed sediments into the ore cart body.

[0012] As a preferred embodiment of the present invention, a rare earth separator is provided inside the ore cart body. The rare earth separator is connected to the positive pressure end of the lifting pump and is used to separate rare earth from tailings in the seabed sediments; Among them, the rare earth separator has two outlets to separately discharge the separated rare earth and tailings.

[0013] As a preferred embodiment of the present invention, a storage bin is provided inside the ore cart body. The storage bin includes 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 pipelines to respectively receive the separated rare earth and tailings; And the lower part of the side wall of the tailings retention bin is connected to the multi-stage telescopic pipe through a second telescopic pipeline, so as to discharge the tailings from the original position of the multi-stage telescopic pipe during the reset process of the multi-stage telescopic pipe.

[0014] As a preferred embodiment of the present invention, a telescopic discharge pipe is provided inside the multi-stage telescopic pipe. The end of the second telescopic pipeline passes through the side wall of the multi-stage telescopic pipe 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 the tailings in the tailings retention bin from the front end of the drill body for backfilling.

[0015] As a preferred embodiment of the present invention, a water pump is installed on the slide plate. The output end of the water pump is provided with a corrugated hose. The corrugated hose penetrates into the multi-stage telescopic pipe and is arranged along the outer wall of the telescopic pipe axis, and the water outlet end of the corrugated hose is close to the drill body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a double-station alternating ore collection method. By arranging two linear guide rails and two telescopic components at the bottom of the ore cart body to control the two collection pipes, after any collection pipe completes collection, it will be transferred two stations towards the mining direction by the cooperation of the linear guide rail and the telescopic component, enabling the two collection pipes to achieve double-station uninterrupted alternating ore collection and effectively improving the ore collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0018] Figure 1 Structural schematic diagram of the in-situ backfilling type double-station alternating ore collection system for deep-sea rare earth mining tailings provided by an embodiment of the present invention; Figure 2 Internal structural schematic diagram of the ore truck body of the in-situ backfilling type double-station alternating ore collection system for deep-sea rare earth mining tailings provided by an embodiment of the present invention; Figure 3 Partial structural schematic diagram of the multi-stage telescopic pipe of the in-situ backfilling type double-station alternating ore collection system for deep-sea rare earth mining tailings provided by an embodiment of the present invention; Figure 4 Schematic diagram of the double-station alternating operation of the in-situ backfilling type double-station alternating ore collection system for deep-sea rare earth mining tailings provided by an embodiment of the present invention.

[0019] The reference numerals in the figure are respectively represented as follows: 1 - ore truck body; 2 - linear guide rail; 3 - telescopic assembly; 4 - collection pipe; 5 - water pump; 11 - lift pump; 12 - rare earth separator; 13 - storage bin; 14 - crawler wheel; 21 - fixed plate frame; 22 - guide rod; 23 - sliding plate; 31 - telescopic cylinder; 32 - mounting plate; 41 - multi-stage telescopic pipe; 42 - collection head; 51 - corrugated hose; 131 - rare earth bin; 132 - tailings retention bin; 133 - first telescopic pipeline; 134 - second telescopic pipeline; 135 - telescopic discharge pipe; 421 - drill body; 422 - cutter wing; 423 - telescopic pipe shaft. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] As Figure 1 、 Figure 2 、 Figure 4As shown in the figure, the present invention provides a dual-station alternating ore collection system for in-situ backfilling of deep-sea rare earth mining tailings, including two linear guide rails 2 installed at the bottom of the ore truck body 1. Each linear guide rail 2 is equipped with a telescopic component 3 through its load position. The telescopic component 3 can be horizontally moved by the linear guide rail 2 parallel to the traveling direction. A collection pipe 4 capable of independently vertically telescoping is provided on the movable part of the telescopic component 3, and the collection pipe 4 can be driven by the telescopic component 3 to horizontally move perpendicular to the traveling direction. Among them, when the two linear guide rails 2 translate the two telescopic components 3 to different positions, the two telescopic components 3 push the two collection pipes 4 to the working positions. The two collection pipes 4 sequentially extend downward into the seabed along the traveling direction and suck deep-sea sediments into the ore truck body 1 for treatment to separate and obtain rare earth ore and tailings. And when the previous collection pipe 4 reaches the lowest position and finishes collection, it contracts upward. At the same time, the ore truck body 1 discharges the tailings in situ from this collection pipe 4 for backfilling. After this collection pipe 4 is reset, the telescopic component 3 connected to it pulls this collection pipe 4 back from the working position to the adjustment position, and the corresponding linear guide rail 2 drives the telescopic component 3 and this collection pipe 4 to translate along the traveling direction in the adjustment position. At the same time, the ore truck body 1 moves forward and the other linear guide rail 2 drives the other telescopic component 3 backward at the same speed, keeping the other collection pipe 4 stationary and forming a staggered movement with the previous collection pipe 4 to move this collection pipe 4 forward by two working positions in front of the other collection pipe 4, and the two collection pipes 4 work in this alternating cycle to form dual-station alternating ore collection.

[0022] The ore collection system of the present invention mainly sets two linearly distributed parallel linear guide rails 2 at the bottom of the ore truck body 1, and sets telescopic components 3 at the load positions of the linear guide rails 2, so that the two telescopic components 3 are arranged oppositely. Thus, after installing the collection pipes 4 on the telescopic components 3, the two collection pipes 4 are adjacent to each other between the two linear guide rails 2. Therefore, during ore collection, when one of the collection pipes 4 finishes collection, it will be transferred in the traveling direction by the cooperation of the telescopic component 3 and the linear guide rail 2. At the same time, the ore truck body 1 also moves forward, forming a staggered movement with the other collection pipe 4. When it moves to the previous position of the other collection pipe 4, the telescopic component 3 pushes the collection pipe 4 to the working position, and the collection pipe 4 extends downward for collection until the collection pipe 4 reaches the bottom, and then the other collection pipe 4 is reset and recovered, thereby realizing cyclic alternating ore collection, effectively improving the ore collection efficiency. And during the reset and recovery process of the collection pipe 4, the ore truck body 1 can discharge the tailings from its interior into the mine pit to achieve in-situ backfilling.

[0023] Specifically, the two collection tubes 4 are divided into a first one and a second one. The two linear guide rails 2 move the first and second collection tubes 4 to be staggered and in different positions at the adjustment position. After that, in the order of the traveling direction, the first collection tube 4 extends downward into the seabed sediment to collect minerals, and sucks in the seabed sediment while extending downward. After the first collection tube 4 reaches the bottom, it maintains the suction and collection. Subsequently, the second collection tube 4 extends downward into the seabed sediment to collect minerals and sucks in the seabed sediment while extending downward.

[0024] When the second collection tube 4 reaches the bottom and maintains the suction and collection, at the same time, the first collection tube 4 stops the suction and collection. The ore car body 1 turns to discharge the tailings to this pit towards the first collection tube 4, and the first collection tube 4 contracts upward to reset, and the tailings continue to be backfilled in place.

[0025] When the first collection tube 4 is completely reset, the telescopic assembly 3 pulls the first collection tube 4 to the adjustment position. At this time, the linear guide rail 2 drives the telescopic assembly 3 to move in the traveling direction. At the same time, the ore car body 1 also moves in the traveling direction, and the other linear guide rail 2 drives the telescopic assembly 3 and the second collection tube 4 to move in the opposite direction at the same speed (that is, controls the slider of the linear guide rail 2 to move in the reverse direction), so that the second collection tube 4 remains relatively stationary to maintain the mining, while the first collection tube 4 moves out of position to the front of the second collection tube 4.

[0026] And when the first collection tube 4 is adjusted to the previous working position of the second collection tube 4 and stops, at this time, the telescopic assembly 3 pushes the first collection tube 4 to the working position, and the first collection tube 4 extends downward into the seabed sediment to collect minerals, and sucks in the seabed sediment while extending downward. After the first collection tube 4 reaches the bottom, it maintains the suction and collection. At the same time, the second collection tube 4 stops the suction and collection and contracts upward to reset, and the ore car body 1 turns to discharge the tailings to this pit towards the second collection tube 4, realizing the in-situ backfilling of the tailings.

[0027] Based on the above process, the first collection tube 4 and the second collection tube 4 work in a cyclic and staggered alternating manner to achieve the effect of double-station alternating mineral collection with in-situ backfilling of tailings. And after one of the collection tubes 4 reaches the bottom, the other collection tube 4 contracts and resets, which can prevent the collapse of the pit.

[0028] Compared with the existing single-station mineral collection system, the present invention adopts a double-station uninterrupted staggered working method. By setting two collection tubes 4, and each collection tube 4 corresponds to a telescopic assembly 3 and a linear guide rail 2, the linear guide rail 2 and the telescopic assembly 3 cooperate with the forward movement of the ore car body 1 to complete the out-of-position movement of the collection tube 4. Thus, after the collection tube 4 finishes the collection, it automatically switches to the two working positions ahead to continue working, realizing uninterrupted alternating mineral collection and improving the mineral collection efficiency.

[0029] Based on the above embodiments, the following provides a preferred embodiment of the linear guide rail 2.

[0030] AsFigure 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; 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 .

[0031] 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.

[0032] Based on the above embodiment, a preferred embodiment of the telescopic assembly 3 is provided below.

[0033] 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 ; 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; The collection tube 4 is located between the multiple telescopic cylinders 31 , and the collection tube 4 is slidably connected to the fixed parts of the telescopic cylinders 31 .

[0034] 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.

[0035] Based on the above embodiment, a preferred embodiment of the collection tube 4 is provided below.

[0036] 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.

[0037] Specifically, the sampling tube 4 is composed of a multi-stage telescopic tube 41 and a sampling head 42. The sampling head 42 can rotate at the bottom of the multi-stage telescopic tube 41. When the multi-stage telescopic tube 41 extends to the seabed, the sampling head 42 can rotate to loosen the seabed sediment, making it more convenient to be sucked into the multi-stage telescopic tube 41. Moreover, during the rotation of the sampling head 42, the sediment can be stirred and diluted, thus preventing the viscous sediment from blocking the multi-stage telescopic tube 41.

[0038] Of course, the sampling head 42 needs to be able to quickly loosen the sea mud and quickly stir and dilute the viscous sea mud. Based on this, the following preferred embodiments are provided.

[0039] As Figure 3 shown, the sampling head 42 includes a drill body 421. The drill body 421 is arranged at the bottom of the multi-stage telescopic tube 41, and a plurality of cutter wings 422 are arranged on the peripheral wall of the drill body 421. The plurality of cutter wings 422 are arranged equidistantly around the drill body 421. Among them, a telescopic tube shaft 423 is arranged on the drill body 421. The telescopic tube shaft 423 is placed inside the multi-stage telescopic tube 41. Each stage of the telescopic tube shaft 423 is connected to each stage of the multi-stage telescopic tube 41, and the telescopic tube shaft 423 is connected to the power box inside the ore truck body 1.

[0040] Specifically, the sampling head 42 adopts a conical drill body 421, which can easily drill into the sea mud. The cutter wings 422 on the periphery of the drill body 421 can further rotate to stir and dilute the surrounding sediment, thus effectively preventing the viscous sediment from being sucked into the multi-stage telescopic tube 41. Among them, the telescopic tube shaft 423 is connected to each stage of the multi-stage telescopic tube 41 and synchronously expands and contracts.

[0041] Among them, the telescopic tube shaft 423 is used to obtain power from the ore truck body 1, so the telescopic tube shaft 423 can stably drive the drill body 421 to rotate. The power box is a conventional motor and gearbox. The gearbox is connected to the telescopic tube shaft 423 by means of gear transmission, which belongs to conventional technology and will not be elaborated here.

[0042] Since the seabed sediment is relatively viscous and difficult to adsorb even after being stirred and diluted by the cutter wings of the drill body 421, in order to facilitate the suction of the sediment, the following preferred embodiments are provided.

[0043] As Figure 1 、 Figure 2 shown, a water pump 5 is installed on the slide plate 23. The output end of the water pump 5 is provided with a corrugated hose 51. The corrugated hose 51 penetrates into 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.

[0044] In this embodiment, the water pump 5 starts when the drill body 421 rotates. When the water pump 5 starts, the water pump 5 pumps seawater in 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, so that the surrounding sediment can be effectively diluted and made easier to extract.

[0045] Of course, the operation of the multi-stage telescopic pipe 41 requires the mining vehicle body 1 to provide negative pressure suction. As Figure 2 shown, a lift pump 11 is provided in the mining vehicle body 1. The negative pressure end of the lift pump 11 is connected to the fixed part of the multi-stage telescopic pipe 41 to generate negative pressure in the multi-stage telescopic pipe 41, so that the multi-stage telescopic pipe 41 can suck the seabed sediment into the mining vehicle body 1.

[0046] Specifically, the negative pressure end of the lift pump 11 generates negative pressure in the multi-stage telescopic pipe 41, so that when the lower end of the multi-stage telescopic pipe 41 touches the bottom, the sediment scattered by the collection head 42 can be sucked into the mining vehicle body 1 for collection.

[0047] Part of the rare earth is contained in the sucked and collected sediment, and the rest is tailings. It needs to be separated in the mining vehicle body 1. As Figure 2 shown, a rare earth separator 12 is provided in the mining vehicle body 1. The rare earth separator 12 is connected to the positive pressure end of the lift pump 11. The rare earth separator 12 is used to separate the rare earth from the tailings in the seabed sediment; Among them, the rare earth separator 12 has two outlets to discharge the separated rare earth and tailings respectively.

[0048] Specifically, the mining vehicle body 1 is internally provided with a rare earth separator 12. The rare earth separator 12 can separate the rare earth from the tailings and discharge them respectively. Among them, the rare earth separator 12 is a prior art and will not be elaborated here.

[0049] After the rare earth and tailings are separated and discharged in the mining vehicle body 1, they need to be stored to prevent the rare earth and tailings from scattering inside the mining vehicle body 1. As Figure 1 、 Figure 2 shown, a storage bin 13 is provided in the mining vehicle 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 the two outlets of the rare earth separator 12 through the first telescopic pipelines 133 to receive the separated rare earth and tailings respectively.

[0050] Specifically, by providing the rare earth bin 131 and the tailings retention bin 132 in the mining vehicle body 1, the rare earth and tailings discharged after being separated and processed by the rare earth separator 12 are respectively transported through the two first telescopic pipelines 133 to be stored in the rare earth bin 131 and the tailings retention bin 132.

[0051] Of course, the tailings in the ore car body 1 have no utilization value and need to be discharged from the ore car body 1 after mining to prevent the tailings from occupying too much space and affecting the storage space for rare earth. Therefore, as Figure 2 , Figure 3 shown, the lower part of the side wall of the tailings retention bin 132 is connected to the multi-stage telescopic pipe 41 through the second telescopic pipeline 134, so that during the reset process of the multi-stage telescopic pipe 41, the tailings can be discharged in place from the multi-stage telescopic pipe 41.

[0052] Specifically, when the ore car body 1 needs to discharge the tailings in the tailings retention bin 132 for in-situ backfilling in the mining pit, the ore car body 1 introduces the tailings into the multi-stage telescopic pipe 41 through the second telescopic pipeline 134. And since the multi-stage telescopic pipe 41 stops suction mining at this time, the tailings can quickly enter the multi-stage telescopic pipe 41 and fall into the pit.

[0053] Furthermore, a telescopic discharge pipe 135 is arranged 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.

[0054] Specifically, the tailings are directly discharged into the bottom drill body 421 of the multi-stage telescopic pipe 41 through the telescopic discharge pipe 135, so that the drill body 421 can stir the discharged tailings to make them evenly distributed in the pit for backfilling.

[0055] During the ore collection process, due to the length limitation of the linear guide rail 2, the ore car body 1 needs to travel to complete long-distance double-station uninterrupted alternating ore collection. As Figure 1 , Figure 2 shown, crawler wheels 14 are arranged on both sides of the ore car body 1, and the crawler wheels 14 are used to drive the ore car body 1 to travel in the mining direction; Among them, there is a height difference between the crawler wheels 14 and the bottom of the ore car body 1. After the collection pipe 4 is fully retracted, its lower end is located above the bottom of the crawler wheels 14.

[0056] Specifically, the ore car body 1 travels through the crawler wheels 14. After the collection pipe 4 is fully retracted, its lower end is located above the bottom of the crawler wheels 14, which does not affect the travel of the ore car body 1. And during the travel process, the linear guide rail 2 needs to cooperate with the crawler wheels 14, that is, when the ore car body 1 travels, it is necessary to ensure that the collection pipe 4 being mined does not move, that is, the load position of the linear guide rail 2 and the ore car body 1 move in the opposite direction relative to each other, without affecting the operation of the collection pipe 4 being mined.

[0057] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions within the essence and protection scope of the present application, and such modifications or equivalent substitutions should also be regarded as falling within the protection scope of the present application.

Claims

1. A dual-station alternating ore-collecting system for in-situ backfilling of deep-sea rare earth mining tailings, characterized in that, It includes two linear guide rails (2) installed at the bottom of the ore car body (1). Each of the linear guide rails (2) is equipped with a telescopic assembly (3) through its load position. The telescopic assembly (3) can be horizontally moved by the linear guide rail (2) parallel to the traveling direction. A collecting pipe (4) capable of independently vertically telescoping is provided on the movable part of the telescopic assembly (3), and the collecting pipe (4) can be driven by the telescopic assembly (3) to horizontally move perpendicular to the traveling direction; Among them, when the two linear guide rails (2) translate and displace the two telescopic assemblies (3), the two telescopic assemblies (3) push the two collecting pipes (4) to the working position. The two collecting pipes (4) sequentially extend downward along the traveling direction and drill into the seabed, and suck deep-sea sediments into the ore car body (1) for processing to separate and obtain rare earth ore and tailings; And when the previous collecting pipe (4) reaches the lowest position and finishes collecting, it contracts upward. At the same time, the ore car body (1) discharges the tailings from this collecting pipe (4) in situ for backfilling. After this collecting pipe (4) is reset, the telescopic assembly (3) connected to it pulls this collecting pipe (4) back from the working position to the adjustment position, and the corresponding linear guide rail (2) drives the telescopic assembly (3) and this collecting pipe (4) to translate along the traveling direction in the adjustment position. At the same time, the ore car body (1) advances and the other linear guide rail (2) drives the other telescopic assembly (3) backward at the same speed, keeping the other collecting pipe (4) stationary and forming a staggered movement with the previous collecting pipe (4) to move this collecting pipe (4) forward by two working positions in front of the other collecting pipe (4), and the two collecting pipes (4) work alternately in this cycle to form alternate ore collection.

2. The in-situ backfilling type double-station alternating ore collection system for deep-sea rare earth mining tailings according to claim 1, wherein, The linear guide rail (2) includes a fixed plate frame (21). The fixed plate frame (21) is installed at the bottom of the ore car body (1), and a guide rod (22) is provided on the fixed plate frame (21); A sliding plate (23) is provided on the guide rod (22). The sliding plate (23) can slide along the axial direction of the guide rod (22), and the telescopic assembly (3) is fixed on the sliding plate (23) to horizontally move with the sliding plate (23).

3. The in-situ backfilling type dual-station alternating ore collection system for deep-sea rare earth mining tailings according to claim 2, wherein The telescopic assembly (3) includes a plurality of telescopic cylinders (31). The fixed part of the telescopic cylinder (31) is vertically installed on the sliding plate (23), and the movable part of the telescopic cylinder (31) is placed in the area between the two sliding plates (23); The movable parts of the plurality of telescopic cylinders (31) are jointly installed with a mounting plate (32), and the collecting pipe (4) is fixed on the mounting plate (32); Among them, the collecting pipe (4) is located between the plurality of telescopic cylinders (31), and the collecting pipe (4) is slidably connected to the fixed part of the telescopic cylinder (31).

4. The in-situ backfilling type dual-station alternating ore-collecting system for deep-sea rare earth mining tailings according to claim 3, wherein, The collection pipe (4) includes a multi-stage telescopic pipe (41). The fixed part of the multi-stage telescopic pipe (41) is fixed on the mounting plate (32). A collection head (42) is provided at the bottom of the multi-stage telescopic pipe (41). The collection head (42) can rotate to rotate and stir the seabed sediment when the lower end of the multi-stage telescopic pipe (41) extends into the seabed.

5. A dual-station alternating ore-collecting system for in-situ backfilling of deep-sea rare earth mining tailings according to claim 4, characterized in that, The collection head (42) includes a drill body (421). The drill body (421) is provided at the bottom of the multi-stage telescopic pipe (41). A plurality of cutter wings (422) are provided on the peripheral wall of the drill body (421). The plurality of cutter wings (422) are arranged equidistantly around the drill body (421); Wherein, a telescopic pipe shaft (423) is provided on the drill body (421). The telescopic pipe shaft (423) is placed inside the multi-stage telescopic pipe (41). Each stage of the telescopic pipe shaft (423) is connected to each stage of the multi-stage telescopic pipe (41).

6. The in-situ backfilling type dual-station alternating ore collection system for deep-sea rare earth mining tailings according to claim 5, characterized in that, A lift pump (11) is provided inside the ore car body (1). The negative pressure end of the lift pump (11) is connected to the fixed part of the multi-stage telescopic pipe (41) to generate negative pressure inside the multi-stage telescopic pipe (41), so that the multi-stage telescopic pipe (41) can suck seabed sediment into the ore car body (1).

7. A dual-station alternating ore collection system for in-situ backfilling of deep-sea rare earth mining tailings according to claim 6, characterized in that, A rare earth separator (12) is provided inside the ore car body (1). The rare earth separator (12) is connected to the positive pressure end of the lift pump (11). The rare earth separator (12) is used to separate rare earth from tailings in the seabed sediment; Wherein, the rare earth separator (12) has two outlets to respectively discharge the separated rare earth and tailings.

8. The in-situ backfilling type double-station alternating ore-collecting system for deep-sea rare earth mining tailings according to claim 7, wherein, A storage bin (13) is provided inside the ore car body (1). The storage bin (13) includes a rare earth bin (131) and a tailing retention bin (132). The rare earth bin (131) and the tailing retention bin (132) are respectively connected to the two outlets of the rare earth separator (12) through a first telescopic pipeline (133) to respectively receive the separated rare earth and tailings; And the lower part of the side wall of the tailing retention bin (132) is connected to the multi-stage telescopic pipe (41) through a second telescopic pipeline (134) to discharge the tailings in place from the multi-stage telescopic pipe (41) during the reset process of the multi-stage telescopic pipe (41).

9. The in-situ backfilling type dual-station alternating ore collection system for deep-sea rare earth mining tailings according to claim 8, wherein, A telescopic discharge pipe (135) is provided inside 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 part of the telescopic discharge pipe (135) is close to the drill body (421) to discharge the tailings in the tailing retention bin (132) from the front end of the drill body (421) for backfilling.

10. A dual-station alternating ore-collecting system for in-situ backfilling of deep-sea rare earth mining tailings according to claim 9, wherein, A water pump (5) is installed on the sliding plate (23). The output end of the water pump (5) is provided with a corrugated hose (51). The corrugated hose (51) penetrates into the multi-stage telescopic pipe (41) and is arranged along the outer wall of the telescopic pipe shaft (423). And the water outlet end of the corrugated hose (51) is close to the drill body (421).

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