Sorting device

Abstract

The application relates to a sorting device. The device comprises a bearing mechanism, a pretreatment mechanism arranged on the bearing mechanism and used for collecting lunar soil from the lunar surface, a conveying mechanism arranged on the bearing mechanism and used for conveying the lunar soil from the pretreatment mechanism, and a sorting mechanism comprising a sorting unit and a magnetic piece. The sorting unit encloses a sorting cavity and a collection cavity which can communicate with each other. The sorting cavity is used for receiving the lunar soil from the conveying mechanism. The magnetic piece is movably connected with the sorting unit. The magnetic piece can move in the sorting cavity and can adsorb target minerals in the sorting cavity and move to the collection cavity. Since the magnetic piece can move in the sorting cavity, the magnetic piece can move to different positions in the sorting cavity, the lunar soil particles in the sorting cavity can be ensured to be located in the magnetic field coverage range of the magnetic piece, the collection amount of the target minerals in the sorting cavity by the magnetic piece per unit time is improved, and finally the collection efficiency of the sorting device for the target minerals is improved.

Description

Technical Field

[0001] This application relates to the field of lunar resource utilization technology, and in particular to a sorting device. Background Technology

[0002] As Earth's only natural satellite, the Moon's unique spatial location and abundant resources make it an ideal outpost for humanity's deep space exploration. However, the extreme cost of transporting materials from Earth to the lunar surface forces the adoption of "in-situ resource utilization" as a core strategy for sustainable lunar exploration. This has led to the development of in-situ lunar resource utilization, aiming to provide the material basis for base construction by developing local lunar resources such as minerals. Sorting devices can collect and extract lunar minerals for subsequent processing and utilization. However, traditional sorting devices typically suffer from low mineral collection efficiency. Summary of the Invention

[0003] One of the technical problems addressed by this application is how to improve the collection efficiency of the sorting device for the target mineral.

[0004] A sorting device, comprising:

[0005] Bearing mechanism;

[0006] A pretreatment mechanism, mounted on the support mechanism, is used to collect lunar soil from the lunar surface;

[0007] A conveying mechanism, disposed on the bearing mechanism and used for conveying lunar soil from the pretreatment mechanism; and

[0008] The sorting mechanism includes a sorting unit and a magnetic component. The sorting unit forms a sorting cavity and a collection cavity that are interconnected. The sorting cavity is used to receive lunar soil from the conveying mechanism. The magnetic component is movably connected to the sorting unit. The magnetic component can move within the sorting cavity and can adsorb target minerals within the sorting cavity and move them to the collection cavity.

[0009] In one embodiment, the sorting unit has a connecting hole that connects the sorting cavity and the collecting cavity. The sorting mechanism also includes a telescopic member that is disposed on the sorting unit and connected to the magnetic member. The telescopic member drives the magnetic member to move between the sorting cavity and the collecting cavity through the connecting hole.

[0010] In one embodiment, the magnetic element includes an electromagnetic trapping element.

[0011] In one embodiment, the sorting unit includes a first sorting shell and a second sorting shell, the first sorting shell being disposed around the second sorting shell, the second sorting shell forming the sorting cavity, and the gap between the first sorting shell and the second sorting shell forming the collection cavity.

[0012] In one embodiment, the first sorting shell and the second sorting shell are concentric hemispheres.

[0013] In one embodiment, the sorting mechanism further includes an electrostatic neutralizing element disposed on the inner wall surface of the sorting chamber, the electrostatic neutralizing element being able to emit light to restore the electrical neutrality of the lunar soil particles in the sorting chamber.

[0014] In one embodiment, the conveying mechanism includes a support core, an inner sleeve, and an outer sleeve. One end of the support core is connected to the carrier mechanism and the other end is connected to the sorting unit. The inner sleeve is sleeved on the support core, and the outer sleeve surrounds the inner sleeve. A conveying channel is formed between the inner sleeve and the outer sleeve, and the end of the conveying channel away from the carrier mechanism is connected to the sorting cavity.

[0015] In one embodiment, the inner sleeve includes a dispersing element located at the opening where the conveying channel communicates with the sorting cavity. The dispersing element is used to apply a negative electric field of the same polarity as the lunar soil to the lunar soil in the sorting cavity.

[0016] In one embodiment, the pretreatment mechanism includes a combing component, an electrifying component, and a pretreatment component. The combing component and the pretreatment component are disposed on the carrying mechanism. The combing component is used to loosen the lunar soil. The pretreatment component forms a pretreatment channel for transporting the lunar soil. The electrifying component is disposed in the pretreatment channel and is used to apply a negative charge to the loosened lunar soil.

[0017] In one embodiment, the carrying mechanism includes a support frame and wheels. The wheels are mounted on the support frame. The pretreatment mechanism and the conveying mechanism are both mounted on the support frame. The support member has a through hole that penetrates the support frame. The orthogonal projection of the sorting cavity along the axial direction of the conveying mechanism can cover the through hole.

[0018] One technical advantage of one embodiment of this application is that, given the magnetic component's ability to move within the sorting cavity, it can reach different positions within the cavity. In the low-gravity environment of the moon, this allows the magnetic component to make sufficient contact with lunar regolith particles whose movement trajectories are dispersed and whose residence time is short. This effectively increases the coverage of the magnetic field within the sorting cavity, ensuring that all lunar regolith particles are within its magnetic field coverage. This increases the amount of target minerals collected per unit time, ultimately improving the sorting device's collection efficiency. Furthermore, the magnetic component can adsorb magnetic metals such as iron, cobalt, and nickel within the sorting cavity, thereby increasing the variety and total amount of target minerals collected, further enhancing the sorting device's collection efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a sorting device provided in one embodiment.

[0020] Figure 2 This is a schematic diagram of a first partial structure of a sorting device provided in one embodiment.

[0021] Figure 3 This is a schematic diagram of a second partial structure of a sorting device provided in one embodiment.

[0022] Figure 4 This is a schematic diagram of a third partial structure of a sorting device provided in one embodiment.

[0023] Reference numerals: sorting device 10, bearing mechanism 100, bearing frame 110, through hole 111, traveling wheel 120, pretreatment mechanism 200, combing component 210, pretreatment component 220, conveying mechanism 300, support core 310, inner sleeve component 320, outer sleeve component 330, conveying channel 340, sorting mechanism 400, sorting unit 410, first sorting shell 411, second sorting shell 412, sorting cavity 412a, connecting hole 412b, collection cavity 413, magnetic component 420, telescopic component 430. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0030] See Figure 1 , Figure 2 and Figure 3 An embodiment of this application provides a sorting device 10, including a carrying mechanism 100, a pretreatment mechanism 200, a conveying mechanism 300, and a sorting mechanism 400. The pretreatment mechanism 200 is disposed on the carrying mechanism 100 and is used to collect lunar regolith from the lunar surface. The conveying mechanism 300 is disposed on the carrying mechanism 100 and is used to convey the lunar regolith from the pretreatment mechanism 200. The sorting mechanism 400 includes a sorting unit 410 and a magnetic component 420. The sorting unit 410 surrounds a sorting cavity 412a and a collection cavity 413, which are interconnected. The sorting cavity 412a is used to receive lunar soil from the conveying mechanism 300. The magnetic component 420 is movably connected to the sorting unit 410 and can reciprocate between the sorting cavity 412a and the collection cavity 413. The magnetic component 420 can move within the sorting cavity 412a and adsorb the target minerals within it. The magnetic component 420 then moves the adsorbed target minerals to the collection cavity 413 so that the target minerals are collected within the collection cavity 413.

[0031] Since the magnetic component 420 can move within the sorting cavity 412a, it can reach different positions within the cavity. Under the low gravity environment of the moon, this allows the magnetic component 420 to make sufficient contact with lunar regolith particles whose trajectories are dispersed and whose residence time is short. This effectively increases the coverage of the magnetic field of the magnetic component 420 within the sorting cavity 412a, ensuring that all lunar regolith particles within the cavity are within its magnetic field coverage. This increases the amount of target minerals collected by the magnetic component 420 per unit time, ultimately improving the collection efficiency of the sorting device 10. Furthermore, the magnetic component 420 can adsorb magnetic metals such as iron, cobalt, and nickel within the sorting cavity 412a, thereby increasing the variety and total amount of target minerals collected, further enhancing the collection efficiency of the sorting device 10.

[0032] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the supporting mechanism 100 includes a support frame 110 and a traveling wheel 120. The traveling wheel 120 is mounted on the support frame 110, specifically on the surface of the support frame 110 facing the moon. When the traveling wheel 120 rolls on the lunar surface, it can overcome obstacles and switch positions, driving the support frame 110 and the entire sorting device 10 to travel on the lunar surface, thereby enabling the sorting device 10 to collect lunar soil from different locations on the lunar surface. A through hole 111 is provided on the support frame 110, extending along the axial direction of the conveying mechanism 300 through the entire support frame 110. Therefore, the through hole 111 is a through hole, connecting the spaces on both sides of the support frame 110 along the axial direction of the conveying mechanism 300. The orthogonal projection of the sorting cavity 412a along the axial direction of the conveying mechanism 300 covers the through hole 111, which can be understood as the through hole 111 being located directly below the sorting cavity 412a. There can be multiple through holes 111, which are arranged circumferentially along the support frame 110. For example, multiple through holes 111 can be arranged around the conveying mechanism 300. Core electronic control components such as energy storage batteries, power management units, and main control boards can be installed inside the support frame 110.

[0033] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the pretreatment mechanism 200 includes a combing element 210, a pretreatment element 220, and an electrifying element. The pretreatment element 220 is mounted on the support frame 110 and forms a pretreatment channel for conveying lunar regolith. The combing element 210 is mounted on the support frame 110 such that it is located at the inlet of the pretreatment channel. The combing element 210 is used to loosen the lunar regolith to form granular lunar regolith particles. For example, the combing element 210 can use ultrasonic waves to generate high-frequency vibrations, which will disrupt the mechanical interlocking and binding forces between the lunar regolith particles, thereby achieving non-drilling fluidized loosening of the lunar regolith. After the combing element 210 loosens the lunar regolith, the loosened lunar regolith particles will enter the pretreatment channel. The electrostatic charging component is installed inside the pretreatment channel. For example, the electrostatic charging component can be connected to the inner wall of the pretreatment channel. The electrostatic charging component applies a negative charge of the same polarity to the lunar soil particles formed after loosening in the pretreatment channel. This causes the lunar soil particles to generate electrostatic repulsion, preventing the dispersed lunar soil particles from agglomerating and forming secondary agglomerations, effectively ensuring that the lunar soil particles are always in a dispersed state. The pretreatment channel is a closed channel. The inlet of the pretreatment channel corresponds to the combing component 210, and the outlet of the pretreatment channel corresponds to the conveying mechanism 300, so that the pretreatment channel is located between the combing component 210 and the conveying mechanism 300. This allows the pretreatment channel to convey the lunar soil particles formed after loosening by the combing component 210 to the conveying mechanism 300.

[0034] Understandably, in the high vacuum and non-convective, low-gravity, and weak settling conditions of the moon, airflow impacts cannot create effective disturbances, and mechanical stirring easily causes dust to fly and equipment vibrations. This not only leads to the failure of lunar soil dispersion but also causes lunar dust pollution and structural fatigue, resulting in extremely poor environmental adaptability. However, by using the ultrasonic waves of the combing component 210 to loosen the lunar soil, the defects caused by airflow impacts and mechanical stirring can be effectively overcome.

[0035] See Figure 2 , Figure 3 and Figure 4 In some embodiments, the conveying mechanism 300 includes a support core 310, an inner sleeve 320, and an outer sleeve 330. The support core 310 can be a cylindrical rod-shaped structure, and both the inner sleeve 320 and the outer sleeve 330 can be cylindrical sleeve structures. One end of the support core 310 is connected to the bearing mechanism 100 and the other end is connected to the sorting unit 410. In other words, the lower end of the support core 310 is connected to the bearing frame 110, and the upper end of the support core 310 is connected to the sorting unit 410, so that the support core 310 is connected between the bearing frame 110 and the sorting unit 410. The support core 310 can support the sorting unit 410, that is, the support core 310 can serve as a bearing carrier for the sorting unit 410. An inner sleeve 320 is fitted onto a support core 310 and can be fixedly connected to the support core 310. An outer sleeve 330 is arranged around the inner sleeve 320 along the radial direction of the support core 310. The inner sleeve 320 and the outer sleeve 330 are spaced apart, forming a conveying channel 340, which is annular. One end of the conveying channel 340 is connected to a pretreatment channel, and the other end is connected to a sorting chamber 412a. In other words, the lower end of the conveying channel 340, closer to the support frame 110, is connected to the pretreatment channel, and the upper end, further away from the support frame 110, is connected to the sorting chamber 412a. This allows lunar soil particles in the pretreatment channel to be conveyed to the sorting chamber 412a through the conveying channel 340. Flexible bags can be installed in the conveying channel 340. The flexible bags are continuously distributed and used to hold lunar soil particles. The flexible bags can be driven by a conveyor so that the lunar soil particles enter the sorting chamber 412a from the pretreatment channel through the conveying channel 340.

[0036] It is understandable that when the flexible bag transports the lunar soil particles to the opening at the upper end of the conveying channel 340 that connects to the sorting cavity 412a, the flexible bag can be controlled to stop moving immediately. Under the action of inertia, the lunar soil particles in the flexible bag will be thrown out. In addition, the negative electric field of the subsequent dispersing element will repel the negatively charged lunar soil particles and form a Coulomb explosion. Therefore, the thrown lunar soil particles will be dispersed as much as possible in the sorting cavity 412a.

[0037] See Figure 2 , Figure 3 and Figure 4 In some embodiments, the sorting unit 410 has a connecting hole 412b, which connects the sorting cavity 412a and the collection cavity 413. The sorting mechanism 400 also includes a telescopic member 430. One end of the telescopic member 430 can be fixedly mounted on the sorting unit 410, and the other end of the telescopic member 430 can extend and retract and connect to the magnetic member 420. The telescopic member 430 drives the magnetic member 420 to move between the sorting cavity 412a and the collection cavity 413 through the connecting hole 412b, and also drives the magnetic member 420 to move within the sorting cavity 412a through the connecting hole 412b. The number of the telescopic member 430, the connecting hole 412b, and the magnetic member 420 can be multiple. For example, the number of the telescopic member 430, the connecting hole 412b, and the magnetic member 420 can be equal, so that the telescopic member 430, the connecting hole 412b, and the magnetic member 420 form a one-to-one correspondence. By setting multiple magnetic components 420, which move simultaneously at different positions within the sorting cavity 412a, the magnetic field generated by these components covers the entire cavity. This ensures that the magnetic components can adsorb all magnetic target minerals within the cavity, thereby improving the collection efficiency of the sorting device 10. Simultaneously, it also shortens the adsorption time for target minerals, further enhancing the overall adsorption efficiency of the sorting device 10.

[0038] See Figure 2 , Figure 3 and Figure 4In some embodiments, the magnetic component 420 includes an electromagnetic capture component. When the telescopic component 430 drives the magnetic component 420 to move through the connecting hole 412b within the sorting cavity 412a, the electromagnetic capture component is energized and therefore magnetic. At this time, the magnetic electromagnetic capture component can adsorb magnetic target minerals within the sorting cavity 412a. After the electromagnetic capture component moves the adsorbed target minerals to the collecting cavity 413, the connecting hole 412b can be closed, preventing the collecting cavity 413 from communicating with the sorting cavity 412a through the connecting hole 412b. At this point, the electromagnetic capture component can be de-energized. After de-energization, the electromagnetic capture component will no longer be magnetic, and therefore cannot continue to adsorb target minerals. The target minerals will then fall from the electromagnetic capture component and enter the collecting cavity 413, thus achieving effective collection of target minerals by the collecting cavity 413. Since the connecting hole 412b has been blocked, the target minerals that fall into the collection chamber 413 will not be able to enter the sorting chamber 412a through the connecting hole 412b, thereby achieving effective collection of the target minerals in the collection chamber 413, avoiding the loss of the target minerals by falling from the connecting hole 412b, and further improving the collection efficiency of the sorting device 10 for the target minerals.

[0039] It is understood that the target minerals falling into the collection chamber 413 can be exported to other collection containers through the collection chamber 413 so that the collection containers can effectively store and transport the target minerals. After the electromagnetic capture device moves the adsorbed target minerals to the collection chamber 413, for lunar soil particles that are not magnetic in the sorting chamber 412a, the non-magnetic lunar soil particles will fall from the sorting chamber 412a under the action of gravity. The fallen lunar soil particles will fall into the through hole 111 of the support frame 110, and finally the non-magnetic lunar soil particles will fall to the surface of the moon through the through hole 111 of the support frame 110, thereby realizing the backfilling of lunar soil on the lunar surface.

[0040] See Figure 1 and Figure 3 In some embodiments, the sorting unit 410 includes a first sorting shell 411 and a second sorting shell 412. The first sorting shell 411 surrounds the second sorting shell 412, and the second sorting shell 412 surrounds a sorting cavity 412a. There is a gap between the first sorting shell 411 and the second sorting shell 412, which forms a collection cavity 413. A connecting hole 412b can be provided on the second sorting shell 412. A telescopic member 430 can be connected to the first sorting shell 411, and a support core 310 can be connected to the second sorting shell 412. A carrier member can be provided between the first sorting shell 411 and the second sorting shell 412 to support the first sorting shell 411 and the second sorting shell 412, thereby maintaining the shape of the collection cavity 413.

[0041] See Figure 1 and Figure 3 In some embodiments, the first sorting shell 411 and the second sorting shell 412 are concentrically arranged hemispheres, and the support core 310 passes through the center of the first sorting shell 411 and the second sorting shell 412, thus making the first sorting shell 411, the second sorting shell 412, and the support core 310 coaxially arranged. This makes the sorting device 10 structurally simple and facilitates the collection of target minerals. In other embodiments, the first sorting shell 411 and the second sorting shell 412 may also be ellipsoidal or conical, etc.

[0042] In some embodiments, the inner sleeve 320 includes a dispersing element located at the opening connecting the conveying channel 340 and the sorting cavity 412a. The dispersing element applies a negative electric field of the same polarity as the lunar soil to the lunar soil within the sorting cavity 412a. It is understood that when the dispersing element applies a high-voltage pulsed electric field of the same polarity as the lunar soil particles, the lunar soil particles undergo a Coulomb explosion under the repulsive force of the high-voltage pulsed electric field, thereby dispersing the lunar soil particles throughout the sorting cavity 412a. This ensures that the lunar soil particles are evenly distributed in various areas within the sorting cavity 412a, thereby increasing the coverage of the magnetic field generated by the magnetic element 420 with the lunar soil particles, and further increasing the adsorption amount of the target mineral on the magnetic element 420, thus improving the collection efficiency of the sorting device 10 for the target mineral.

[0043] In some embodiments, the sorting mechanism 400 further includes an electrostatic neutralization element disposed on the inner wall surface of the sorting cavity 412a. The electrostatic neutralization element emits light that can restore the lunar soil particles within the sorting cavity 412a to electrical neutrality. It is understood that when the magnetic element 420 adsorbs the lunar soil particles in the sorting cavity 412a, the electrostatic neutralization element can be activated simultaneously. The electrostatic neutralization element can photoelectrically irradiate the lunar soil particles within the sorting cavity 412a, thereby eliminating the charge on the lunar soil particles and restoring them to a neutral, uncharged state. Since the lunar soil particles are in a neutral state, a neutral state can be effectively avoided.

[0044] Therefore, by setting the pretreatment mechanism 200, the conveying mechanism 300 and the sorting mechanism 400 on the same carrier mechanism 100, the sorting device 10 can simultaneously perform the functions of pretreatment, conveying and collecting lunar soil, thereby enabling the sorting device 10 to meet the stringent requirements of miniaturization, lightweight and high integration of platforms such as lunar rovers or landers.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A sorting device, characterized in that, include: Bearing mechanism; A pretreatment mechanism, mounted on the support mechanism, is used to collect lunar soil from the lunar surface; A conveying mechanism, mounted on the bearing mechanism and used to convey lunar soil from the pretreatment mechanism; and The sorting mechanism includes a sorting unit and a magnetic component. The sorting unit forms a sorting cavity and a collection cavity that are interconnected. The sorting cavity is used to receive lunar soil from the conveying mechanism. The magnetic component is movably connected to the sorting unit. The magnetic component can move within the sorting cavity and can adsorb target minerals within the sorting cavity and move them to the collection cavity.

2. The sorting device according to claim 1, characterized in that, The sorting unit has a connecting hole that connects the sorting cavity and the collecting cavity. The sorting mechanism also includes a telescopic member that is disposed on the sorting unit and connected to the magnetic member. The telescopic member drives the magnetic member to move between the sorting cavity and the collecting cavity through the connecting hole.

3. The sorting device according to claim 2, characterized in that, The magnetic component includes an electromagnetic trapping component.

4. The sorting device according to claim 1, characterized in that, The sorting unit includes a first sorting shell and a second sorting shell. The first sorting shell is arranged around the second sorting shell, and the second sorting shell forms the sorting cavity. The gap between the first sorting shell and the second sorting shell forms the collection cavity.

5. The sorting device according to claim 4, characterized in that, The first sorting shell and the second sorting shell are concentric hemispheres.

6. The sorting device according to claim 1, characterized in that, The sorting mechanism also includes an electrostatic neutralizing element, which is disposed on the inner wall surface of the sorting chamber. The electrostatic neutralizing element can emit light to restore the electrical neutrality of the lunar soil particles in the sorting chamber.

7. The sorting device according to claim 1, characterized in that, The conveying mechanism includes a support core, an inner sleeve, and an outer sleeve. One end of the support core is connected to the bearing mechanism and the other end is connected to the sorting unit. The inner sleeve is sleeved on the support core, and the outer sleeve surrounds the inner sleeve. A conveying channel is formed between the inner sleeve and the outer sleeve. The end of the conveying channel away from the bearing mechanism is connected to the sorting cavity.

8. The sorting device according to claim 7, characterized in that, The inner sleeve includes a dispersing element, which is located at the opening where the conveying channel communicates with the sorting cavity. The dispersing element is used to apply a negative electric field of the same polarity as the lunar soil to the lunar soil in the sorting cavity.

9. The sorting device according to claim 1, characterized in that, The pretreatment mechanism includes a combing component, an electrifying component, and a pretreatment component. The combing component and the pretreatment component are disposed on the carrying mechanism. The combing component is used to loosen the lunar soil. The pretreatment component forms a pretreatment channel for transporting the lunar soil. The electrifying component is disposed in the pretreatment channel and is used to apply a negative charge to the loosened lunar soil.

10. The sorting device according to claim 1, characterized in that, The carrying mechanism includes a carrying frame and traveling wheels. The traveling wheels are mounted on the carrying frame. The pre-processing mechanism and the conveying mechanism are both mounted on the carrying frame. The carrying member has a through hole that penetrates the carrying frame. The orthogonal projection of the sorting cavity along the axial direction of the conveying mechanism can cover the through hole.

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