Preparation method of ice-containing celestial body surface soil simulant

Abstract

The present invention relates to a method for preparing a surface soil simulant of an ice-containing celestial body, comprising: preparing a target celestial body surface soil simulant powder; preparing spherical micron-sized ice particles, and using the micron-sized ice particles and the surface soil simulant powder to prepare a surface soil simulant ice-dust mixture of the target celestial body. The present invention can simulate the surface soil material of the solar system celestial body containing ice, and has similar physical and chemical properties to the surface of a real natural celestial body, which is conducive to assisting the establishment of an upper dynamic layer model of an ice-containing celestial body and studying its evolution pattern, providing scientific support for remote sensing data interpretation, and can be used for future ground verification and testing of landing sampling and exploration missions of ice-containing celestial bodies, assisting the development of anchoring devices and sampling mechanisms that interact with the surface of celestial bodies, supporting the formulation and verification of storage and management plans for future sampling and return samples of ice-containing celestial bodies, and is conducive to ground verification and testing of in-situ resource utilization and development equipment on the surface of ice-containing celestial bodies.

Description

Technical Field

[0001] The present invention relates to the technical field of celestial body surface soil simulation, and in particular to a method for preparing a celestial body surface soil simulation material containing ice. Background Art

[0002] Water ice on the surface of solar system bodies has always been a hot target for human space exploration. The detection and research of water ice on the surface of celestial bodies can provide clues to the origin of life on Earth and provide support for the utilization of space resources and base construction. Currently, European and American countries have conducted various forms of detection on typical ice-containing bodies such as comets. In addition, a large amount of water ice has been found on the surfaces of Pluto and Ceres.

[0003] my country has currently planned its first small body exploration mission, which will explore two small bodies in one mission, including a flyby exploration of a main-belt comet. The international method for developing cometary regolith simulants is relatively simplified, using only water ice and quartz particles or volcanic ash particles, which cannot highly simulate the target celestial body's regolith. At present, there are still no reports on the development and application of icy celestial body regolith simulants such as comets in China. Therefore, we urgently need to develop icy celestial body regolith simulants and establish laboratory simulation methods to provide scientific basis and ground verification support for future remote sensing detection and landing sampling of probes. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing a simulated surface soil of an icy celestial body, so as to prepare similarities of different types of surface soils of icy celestial bodies in the solar system, and to provide support for future icy celestial body exploration missions.

[0005] In order to achieve the above-mentioned object of the invention, the present invention provides a method for preparing a simulated ice-containing celestial body surface soil, comprising:

[0006] S10. Prepare target celestial body surface soil simulant powder;

[0007] S20. Prepare spherical micron-sized ice particles, and use the micron-sized ice particles and surface soil simulant powder to prepare a surface soil-simulated ice-dust mixture of a target celestial body.

[0008] In any of the above technical solutions, in step S20, spherical micron-sized ice particles are prepared, and a surface soil simulated ice-dust mixture of a target celestial body is prepared by using the spherical micron-sized ice particles and surface soil simulated powder, including:

[0009] S21. Inject pure water into the water tank;

[0010] S22. Inject liquid nitrogen into the Dewar barrel;

[0011] S23. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer;

[0012] S24. Nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar barrel to obtain the spherical micron-sized ice particles;

[0013] S25. Pour the micron-sized ice particles and liquid nitrogen in the Dewar barrel into a cryogenic separation device, and wait for the liquid nitrogen to evaporate, leaving the micron-sized ice particles;

[0014] S26. Weighing the micron-sized ice particles and the surface soil simulant powder separately in a low-temperature freezer;

[0015] S27. Evenly mix the micron-sized ice particles and the surface soil simulant powder in proportion to obtain a surface soil simulating ice-dust mixture of the target celestial body.

[0016] In any of the above technical solutions, in step S20, spherical micron-sized ice particles are prepared, and a surface soil simulated ice-dust mixture of a target celestial body is prepared by using the spherical micron-sized ice particles and surface soil simulated powder, including:

[0017] S21. Drying the target celestial body surface soil simulant powder prepared in step S10;

[0018] S22. Inject pure water into the water tank;

[0019] S23. Injecting liquid nitrogen into the Dewar barrel;

[0020] S24. Adding the dried target celestial body surface soil simulant powder to the Dewar barrel in proportion;

[0021] S25. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer;

[0022] S26. nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar barrel to obtain a spherical mixture of the micron-sized ice particles and the target celestial body surface soil simulant powder;

[0023] S27. Separate the mixture obtained in step S26 in a low-temperature separation device, and after the liquid nitrogen evaporates, obtain a surface soil simulation ice-dust mixture of the target celestial body.

[0024] In any of the above technical solutions, after obtaining the spherical mixture of the micron-sized ice particles and the target celestial body surface soil simulant powder, the micron-sized ice particles and the target celestial body surface soil simulant powder are stirred and mixed in liquid nitrogen in a Dewar barrel.

[0025] In any of the above technical solutions, before performing step S10, the composition and proportion of the surface soil of the target celestial body, and the ratio of the micron-sized ice particles to the surface soil simulant powder are first obtained.

[0026] In any of the above technical solutions, in step S20, the prepared spherical micron-sized ice particles have a particle size range of 5 μmˉ50 μm.

[0027] In any of the above technical solutions, in step S23, the particle size range of the micron-sized mist particles formed by atomization by the ultrasonic atomizer is 5 μm-50 μm.

[0028] In any of the above technical solutions, the topsoil simulant powder includes any one or more of olivine, pyroxene, feldspar, serpentine, pyrite, iron-nickel metal, apatite, activated carbon and humic acid.

[0029] In any of the above technical solutions, in step 31, the temperature in the low-temperature freezer ranges from -40°C to -30°C.

[0030] In any of the above technical solutions, the low-temperature separation device is a stainless steel box with an interlayer, and a heat-insulating material is arranged on the periphery of the box.

[0031] The present invention provides a method for preparing a surface soil simulant of an ice-containing celestial body, comprising: preparing a surface soil simulant powder of a target celestial body; preparing spherical micron-sized ice particles, and using the micron-sized ice particles and the surface soil simulant powder to prepare a surface soil simulant ice-dust mixture of the target celestial body; being able to simulate the surface soil material of an ice-containing celestial body in the solar system, having similar physical and chemical properties to the surface of a real natural celestial body, being conducive to assisting in establishing an upper dynamic layer model of an ice-containing celestial body, and studying its evolution pattern, providing scientific support for remote sensing data interpretation, being able to be used for future ground verification and testing of landing sampling and exploration missions of ice-containing celestial bodies, assisting in the development of anchoring devices and sampling mechanisms that interact with the surface of celestial bodies, supporting the formulation and verification of storage and management plans for future sampling and return samples of ice-containing celestial bodies, and being conducive to ground verification and testing of in-situ resource utilization and development equipment on the surface of ice-containing celestial bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A flowchart schematically showing the steps of a method for preparing an ice-containing celestial body surface soil simulant according to an embodiment of the present invention;

[0033] Figure 2 A flowchart schematically showing the steps of a method for preparing spherical micron-sized ice particles according to an embodiment of the present invention;

[0034] Figure 3 A flowchart schematically showing the steps of a method for preparing an ice-containing celestial body surface soil simulant according to another embodiment of the present invention;

[0035] Figure 4 A flowchart schematically showing the steps of a method for preparing an ice-containing celestial body surface soil simulant according to another embodiment of the present invention;

[0036] Figure 5 Schematically showing a connection diagram of a device for preparing micron-sized ice particles according to an embodiment of the present invention;

[0037] Figure 6 Schematically showing a connection diagram of an ice dust mixture preparation device according to an embodiment of the present invention;

[0038] Figure 7 A schematic diagram schematically shows the structure of a low-temperature separation device according to an embodiment of the present invention;

[0039] Figure 8 Schematically showing the particle size and morphology of micron-sized ice particles prepared according to the present invention under a microscope;

[0040] Fig. 9 A schematic diagram of a simulated surface soil, ice and dust mixture of a main belt comet according to an embodiment of the present invention;

[0041] Fig.10 Schematically represents the particle size distribution statistics of micron-sized ice particles prepared according to the present invention;

[0042] Fig.11 A schematic representation of a simulated surface reef, ice and dust mixture of a main-belt comet according to another embodiment of the present invention. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0044] like Figure 1 As shown, according to one embodiment of the present invention, a method for preparing an ice-containing celestial body surface soil simulant of the present invention comprises:

[0045] S10. Prepare target celestial body surface soil simulant powder;

[0046] S20. Prepare spherical micron-sized ice particles, and use the micron-sized ice particles and surface soil simulant powder to prepare a surface soil-simulating ice-dust mixture of the target celestial body.

[0047] In this embodiment, by preparing powdered micron-sized ice particles of the target celestial body surface soil simulant and mixing the two evenly in proportion, the surface soil material of the solar system icy celestial body can be simulated, which has similar physical and chemical properties to the real natural celestial body surface, is helpful in assisting the establishment of an upper dynamic layer model of the icy celestial body and studying its evolution pattern, providing scientific support for remote sensing data interpretation, and can be used for future ground verification and testing of landing sampling and detection missions of icy celestial bodies, assisting in the development of anchoring devices and sampling mechanisms that interact with the celestial body surface, supporting the formulation and verification of storage and management plans for future icy celestial body sampling and return samples, and is beneficial to ground verification and testing of in-situ resource utilization and development equipment on the surface of icy celestial bodies.

[0048] like Figure 2 and Figure 5 As shown, in one embodiment of the present invention, preferably, preparing spherical micron-sized ice particles comprises:

[0049] S21. Inject pure water into the water tank;

[0050] S22. Inject liquid nitrogen into the Dewar barrel;

[0051] S23. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer;

[0052] S24. Nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar bucket to obtain spherical micron-sized ice particles;

[0053] S25. Pour the micron-sized ice particles and liquid nitrogen in the Dewar barrel into a low-temperature separation device, and wait for the liquid nitrogen to evaporate, leaving the micron-sized ice particles.

[0054] In this embodiment, pure water is first injected into the water tank, and liquid nitrogen is injected into the Dewar barrel to reduce the temperature in the Dewar barrel. At this time, the ultrasonic atomizer is turned on. Under the action of the ultrasonic atomizer, the pure water in the water tank is atomized into micron-sized mist particles. Then nitrogen is introduced into the water tank. The nitrogen drives the micron-sized mist particles in the water tank into the Dewar barrel, and freezes instantly to form spherical micron-sized ice particles. Finally, the micron-sized ice particles in the Dewar barrel and the liquid nitrogen are poured into the low-temperature separation device. After the liquid nitrogen evaporates, only the micron-sized ice particles are left in the low-temperature separation device.

[0055] Among them, when preparing micron-sized ice particles, as samples of similar objects on the surface of ice-containing celestial bodies, ice particles are often unstable and the ice components are prone to deterioration and phase change. Therefore, the present application prepares a sufficient amount of spherical micron-sized ice particles through liquid nitrogen and an ultrasonic atomizer to simulate the water ice in the surface soil of ice-containing celestial bodies, and can prepare micron-sized ice particles with morphology, particle size and quality that meet the requirements.

[0056] In addition, if Figure 5As shown, the preparation of micron-sized ice particles includes a nitrogen tank, a water tank and a Dewar barrel. The nitrogen tank is provided with two outlet ends, one end is a liquid nitrogen outlet, and the other end is a nitrogen outlet. The liquid nitrogen is passed into the Dewar barrel through a metal hose, and the nitrogen is directly passed into the water tank. An ultrasonic atomizer is arranged in the water tank, and the ultrasonic atomizer is equipped with a power supply. The outlet of the water tank is connected to the Dewar barrel, and a retractable bracket for adjusting the height of the Dewar barrel is arranged under the Dewar barrel.

[0057] Furthermore, the morphology and particle size of the produced micron-sized ice particles were observed using an optical microscope with a low-temperature (high-temperature) hot and cold stage. Figure 8 That is, the particle size and morphology of micron-sized ice particles under a microscope, such as Fig.10 As shown, the particle size of the ice particles ranges from 2 μm to 12 μm, with an average particle size of 5 μm.

[0058] like Figure 3 As shown, in one embodiment of the present invention, preferably, in step S30, spherical micron-sized ice particles are uniformly mixed with surface soil simulant powder in proportion, comprising:

[0059] S21. Inject pure water into the water tank;

[0060] S22. Inject liquid nitrogen into the Dewar barrel;

[0061] S23. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer;

[0062] S24. Nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar bucket to obtain spherical micron-sized ice particles;

[0063] S25. Pour the micron-sized ice particles and liquid nitrogen in the Dewar barrel into a cryogenic separation device, and wait for the liquid nitrogen to evaporate, leaving the micron-sized ice particles;

[0064] S26. Weigh the micron-sized ice particles and the surface soil simulant powder separately in a low-temperature freezer;

[0065] S27. Evenly mix the micron-sized ice particles and the surface soil simulant powder in proportion to obtain a surface soil simulating ice-dust mixture of the target celestial body.

[0066] In this embodiment, after the preparation of micron-sized ice particles is completed, the surface soil simulant powder and the micron-sized ice particles are weighed separately in a low-temperature freezer and mixed in proportion to obtain a surface soil simulating ice dust mixture of the target celestial body.

[0067] For example, if Fig. 9As shown in the figure, the left side is the simulated surface reef ice-dust mixture of a main-belt comet under the naked eye, and the right side is the simulated surface reef ice-dust mixture of a main-belt comet under a microscope. Taking the main-belt comet 133P / Elst-Pizarro as the target celestial body, the micron-sized ice particles and the pre-prepared comet surface reef simulant powder sample were weighed separately in a low-temperature freezer (-30℃), and then the two were evenly mixed according to the composition ratio of the comet surface reef obtained by spectral inversion in the literature, to obtain the simulated surface reef ice-dust mixture of a main-belt comet. The morphology and particle size of the ice particles and the mineral powder particles can be observed under a microscope.

[0068] like Figure 4 and Figure 6 As shown, in one embodiment of the present invention, preferably, in step S30, spherical micron-sized ice particles are uniformly mixed with surface soil simulant powder in proportion, comprising:

[0069] S21. Drying the target celestial body surface soil simulant powder prepared in step S10;

[0070] S22. Inject pure water into the water tank;

[0071] S23. Injecting liquid nitrogen into the Dewar barrel;

[0072] S24. Add the dried target celestial body surface soil simulant powder to the Dewar barrel in proportion and mix well;

[0073] S25. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer;

[0074] S26. Nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar bucket to obtain spherical micron-sized ice particles;

[0075] S27. Separate the mixture in the Dewar barrel in a low-temperature separation device, and after the liquid nitrogen evaporates, obtain a surface soil of the target celestial body simulating an ice-dust mixture.

[0076] In this embodiment, when preparing micron-sized ice particles, dried target celestial body surface soil simulant powder is added to the Dewar barrel in proportion to obtain a mixture. The dried target celestial body surface soil simulant powder will not affect the proportion of micron-sized ice particles, and the authenticity and accuracy of the simulation of the target celestial body surface soil simulant powder can be ensured. Finally, the obtained mixture is separated in a low-temperature separation device, and after the liquid nitrogen evaporates, a surface soil simulation ice dust mixture of the target celestial body is obtained.

[0077] For example, if Fig.11As shown, the left side is the simulated surface soil, ice and dust mixture of the main-belt comet under the naked eye, and the right side is the simulated surface soil, ice and dust mixture of the main-belt comet under a microscope. The main-belt comet 133P / Elst-Pizarro is taken as the target celestial body. Before injecting liquid nitrogen into the Dewar barrel, the dried target celestial body surface soil simulant powder is added to the Dewar barrel, and then poured into the low-temperature separation device to separate the liquid nitrogen and the simulant. After the liquid nitrogen evaporates, the main-belt comet simulated surface soil, ice and dust mixture is obtained.

[0078] In one embodiment of the present invention, preferably, after obtaining a mixture of spherical micron-sized ice particles and target celestial body surface soil simulant powder, the micron-sized ice particles and target celestial body surface soil simulant powder are stirred and mixed in liquid nitrogen in a Dewar barrel.

[0079] In one embodiment of the present invention, preferably, before performing step S10, the composition and proportion of the surface soil of the target celestial body, and the ratio of micron-sized ice particles to surface soil simulant powder are first obtained.

[0080] In this embodiment, first, the target celestial body is confirmed, and then the ratio of micron-sized ice particles to surface soil simulant powder is obtained according to the composition ratio of the surface soil of the target celestial body based on spectral inversion in the literature.

[0081] In one embodiment of the present invention, preferably, the prepared spherical micron-sized ice particles have a particle size range of 5 μmˉ50 μm.

[0082] In one embodiment of the present invention, preferably, the particle size range of the micron-sized mist particles formed by ultrasonic atomization is 5 μm-50 μm.

[0083] In one embodiment of the present invention, preferably, the topsoil simulant powder includes any one or more of olivine, pyroxene, feldspar, serpentine, pyrite, iron-nickel metal, apatite, activated carbon and humic acid.

[0084] In one embodiment of the present invention, preferably, the temperature in the low temperature freezer ranges from -40°C to -30°C.

[0085] like Figure 7 As shown, in one embodiment of the present invention, preferably, the low-temperature separation device is a stainless steel box with an interlayer, and a heat-insulating material is arranged on the periphery of the box.

[0086] In this embodiment, the low temperature separation device is a stainless steel box with an interlayer, provided with a liquid inlet and an exhaust hole, through which liquid nitrogen is injected into the interlayer of the box, and a sliding door is installed above the box to control the closing and opening of the box. The entire box is wrapped with insulation material to maintain a stable low temperature environment.

[0087] The present invention provides a method for preparing a surface soil simulant of an ice-containing celestial body, comprising: preparing a surface soil simulant powder of a target celestial body; preparing spherical micron-sized ice particles, and using the micron-sized ice particles and the surface soil simulant powder to prepare a surface soil simulant ice-dust mixture of the target celestial body; being able to simulate the surface soil material of an ice-containing celestial body in the solar system, having similar physical and chemical properties to the surface of a real natural celestial body, being conducive to assisting in establishing an upper dynamic layer model of an ice-containing celestial body, and studying its evolution pattern, providing scientific support for remote sensing data interpretation, being able to be used for future ground verification and testing of landing sampling and exploration missions of ice-containing celestial bodies, assisting in the development of anchoring devices and sampling mechanisms that interact with the surface of celestial bodies, supporting the formulation and verification of storage and management plans for future sampling and return samples of ice-containing celestial bodies, and being conducive to ground verification and testing of in-situ resource utilization and development equipment on the surface of ice-containing celestial bodies.

[0088] The above contents are merely examples of specific solutions of the present invention. For devices and structures not described in detail therein, it should be understood that they can be implemented by adopting general devices and general methods available in the art.

[0089] The above is only one solution of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing a simulated ice-containing celestial body surface soil, characterized in that: include: S10. Prepare target celestial body surface soil simulant powder; S20. preparing spherical micron-sized ice particles, and using the micron-sized ice particles and surface soil simulant powder to prepare a surface soil simulating ice dust mixture of a target celestial body; In step S20, spherical micron-sized ice particles are prepared, and a surface soil simulated ice-dust mixture of a target celestial body is prepared by using the spherical micron-sized ice particles and surface soil simulated powder, including: S21. Inject pure water into the water tank; S22. Inject liquid nitrogen into the Dewar barrel; S23. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer; S24. Nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar barrel to obtain the spherical micron-sized ice particles; S25. The micron-sized ice particles in the Dewar bucket are poured into a cryogenic separation device together with liquid nitrogen, and the liquid nitrogen evaporates, leaving the micron-sized ice particles; S26. The micron-sized ice particles and the surface soil simulant powder were weighed separately in a low-temperature freezer; S27. The micron-sized ice particles are uniformly mixed with the surface soil simulant powder in proportion to obtain a surface soil simulating ice-dust mixture of the target celestial body.

2. The method for preparing an ice-containing celestial body surface soil simulant according to claim 1, characterized in that: Before performing step S10, the composition and proportion of the surface soil of the target celestial body, and the ratio of the micron-sized ice particles to the surface soil simulant powder are first obtained.

3. The method for preparing the ice-containing celestial body surface soil simulant according to claim 1, characterized in that: The prepared spherical micron-sized ice particles have a particle size range of 5μm~50μm.

4. The method for preparing an ice-containing celestial body surface soil simulant according to claim 1, characterized in that: The particle size of the micron-sized mist particles formed by atomization by the ultrasonic atomizer ranges from 5 μm to 50 μm.

5. The method for preparing an ice-containing celestial body surface soil simulant according to claim 1, characterized in that: The topsoil simulant powder includes any one or more of olivine, pyroxene, feldspar, serpentine, pyrite, iron-nickel metal, apatite, activated carbon and humic acid.

6. The method for preparing an ice-containing celestial body surface soil simulant according to claim 1, characterized in that: In step S26, the temperature in the low temperature freezer ranges from -40°C to -30°C.

7. The method for preparing a simulated ice-containing celestial body surface soil according to claim 1, characterized in that: The low-temperature separation device is a stainless steel box with an interlayer, and a heat-insulating material is arranged on the periphery of the box.

8. A method for preparing a simulated ice-containing celestial body surface soil, characterized in that: include: S10. Prepare target celestial body surface soil simulant powder; S20. preparing spherical micron-sized ice particles, and using the micron-sized ice particles and surface soil simulant powder to prepare a surface soil simulating ice dust mixture of a target celestial body; In step S20, spherical micron-sized ice particles are prepared, and a surface soil simulated ice-dust mixture of a target celestial body is prepared by using the spherical micron-sized ice particles and surface soil simulated powder, including: S21. The target celestial body surface soil simulant powder prepared in step S10 is dried; S22. Inject pure water into the water tank; S23. Injecting liquid nitrogen into the Dewar barrel; S24. Adding the dried target celestial body surface soil simulant powder to the Dewar barrel in proportion; S25. Atomize the water in the water tank into micron-sized mist particles using an ultrasonic atomizer; S26. nitrogen is introduced into the water tank, and the micron-sized mist particles in the water tank are sent into the Dewar barrel to obtain a spherical mixture of the micron-sized ice particles and the target celestial body surface soil simulant powder; S27. Separate the mixture obtained in step S26 in a low-temperature separation device, and after the liquid nitrogen evaporates, obtain a surface soil simulation ice-dust mixture of the target celestial body.

9. The method for preparing an ice-containing celestial body surface soil simulant according to claim 8, characterized in that: After obtaining the spherical mixture of the micron-sized ice particles and the target celestial body surface soil simulant powder, the micron-sized ice particles and the target celestial body surface soil simulant powder are stirred and mixed in liquid nitrogen in a Dewar barrel.

10. The method for preparing the ice-containing celestial body surface soil simulant according to claim 8, characterized in that: Before performing step S10, the composition and proportion of the surface soil of the target celestial body, and the ratio of the micron-sized ice particles to the surface soil simulant powder are first obtained.

11. The method for preparing the ice-containing celestial body surface soil simulant according to claim 8, characterized in that: The prepared spherical micron-sized ice particles have a particle size range of 5μm~50μm.

12. The method for preparing a simulated ice-containing celestial body surface soil according to claim 8, characterized in that: The particle size of the micron-sized mist particles formed by atomization by the ultrasonic atomizer ranges from 5 μm to 50 μm.

13. The method for preparing a simulated ice-containing celestial body surface soil according to claim 8, characterized in that: The topsoil simulant powder includes any one or more of olivine, pyroxene, feldspar, serpentine, pyrite, iron-nickel metal, apatite, activated carbon and humic acid.

14. The method for preparing the ice-containing celestial body surface soil simulant according to claim 8, characterized in that: The low-temperature separation device is a stainless steel box with an interlayer, and a heat-insulating material is arranged on the periphery of the box.

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