CN115728115B - Preparation method for simulating shape of water-containing ice in lunar soil - Google Patents
Preparation method for simulating shape of water-containing ice in lunar soil Download PDFInfo
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- CN115728115B CN115728115B CN202211545151.6A CN202211545151A CN115728115B CN 115728115 B CN115728115 B CN 115728115B CN 202211545151 A CN202211545151 A CN 202211545151A CN 115728115 B CN115728115 B CN 115728115B
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- 239000002689 soil Substances 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000007710 freezing Methods 0.000 claims abstract description 7
- 230000008014 freezing Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 4
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The invention relates to a preparation method for simulating the shape of water ice in lunar soil, which belongs to the technical field of space resource detection, and can realize the rapid cementation between the surface of the water ice and simulated lunar soil particles by a method of pressurizing and heating firstly and then rapidly cooling and freezing, and simultaneously can realize the preparation of quantitative size and shape of the water ice lunar soil under a certain depth of a permanent shadow area of a lunar, simulate the possible existence form of the water ice lunar soil at the bottom of a pit of the permanent shadow area of a south pole of the lunar, reflect the section characteristics of the lunar soil under a certain depth of the permanent shadow area to a certain extent, and not only provide a sample for verification and calibration experiments of lunar soil water ice excavating machines, but also have important significance for lunar in-situ water resources.
Description
Technical Field
The invention belongs to the technical field of space resource detection, and particularly relates to a preparation method for simulating the shape of water-containing ice in lunar soil.
Background
Chang E seven was expected to launch in 2024, a mission planning exploring the south pole of the moon where the simulated lunar soil was covered and the mineral composition and particle size distribution of the lunar south pole lunar soil was similar to that of the highland lunar soil. According to the relevant literature, the south pole permanent impact zone of the moon contains water ice. Water is an essential material for inoculating life and is the basis for the life of the earth to survive and continue in the space outside the earth. The water-containing ice lunar soil is a direct carrier for future landing walking, drilling sampling and in-situ resource utilization, and has important influence on lunar exploration. The existing simulated lunar soil is mainly of two types, namely lunar sea and highland. The water-containing ice simulates less lunar soil. The existing method for simulating the water-containing ice lunar soil mainly comprises the following steps: water mixed soil, ice mixed soil and air mixed soil. According to the related literature, the water ice occurrence form at the pit bottom of the permanently hatched area 3-4 m may be a mixture of massive water ice and dry soil. The shape of the bulk water ice may be varied and the surface of the bulk water ice is surrounded by the regional lunar soil, the surface of the water ice being cemented with the lunar soil. The compaction of lunar soil at 3-4 meters below the permanently hatched area may be high (relative compaction of 70% -99%). Therefore, in order to utilize in-situ resources of lunar water ice, a sample is provided for a lunar soil water ice excavation test, and a preparation method of the lunar soil simulated by the water ice is urgently needed.
Disclosure of Invention
The invention aims to solve the technical problems that: the method for quantitatively preparing the simulated lunar soil by the water-containing ice overcomes the defects of the prior art, simulates the existence form of the lunar soil by the water ice at the bottom of a permanent shadow area of a south pole of a moon by controlling the pressure and the environmental temperature, and provides a sample for verification and calibration test of a lunar soil water ice excavator.
1. The invention discloses a preparation method for simulating the shape of water-containing ice in lunar soil, which comprises the following steps:
1.1 preparation in earlier stage:
1) The container 1 is a cylinder without a cover, the outer diameter D1 of the container is 130-135mm, the inner diameter D2 of the container is 132-136mm, and the height h1 of the container is 100-105mm;
2) The ice cubes 2 are respectively in the shape of a sphere a, a cube b, a cuboid c, a triangular pyramid d, a cone e and a cylinder f;
specific size ranges for ice cubes 2:
the radius of the sphere a is 40-45mm;
The side length of the cube b is 80-85mm;
The length of the cuboid c is 70-75mm, the width is 70-75mm, and the height is 80-85mm;
the bottom side length of the triangular pyramid d is The height is 80-85mm;
the bottom radius of the cone e is 40-45mm, and the height is 80-85mm;
the diameter of the cylinder f is 80-85mm, and the height is 80-85mm;
3) Simulation lunar soil 3: the method is divided into bottom simulated lunar soil 5, middle simulated lunar soil 6 and top simulated lunar soil 7, and the grain size of the method is in the range of 10-1000 mu m of the grain size of the real Apollo-16 lunar soil.
4) Weight 4: the diameter D4 is 128-133mm, the thickness h4 is 20-25mm, and the weight is 5-7.5kg;
1.2 precooling the container 1, the ice cubes 2, the simulated lunar soil 3 and the weight 4 in the freezing chamber with the temperature of-15 to-10 ℃ in the step 1.1, so that the container 1, the ice cubes 2, the simulated lunar soil 3 and the weight 4 reach heat balance;
1.3 paving bottom simulated lunar soil 5 at the bottom of the container 1, compacting to 75% compactness, and thickness of 8-10mm;
1.4 vertically placing the ice cubes 2 with the determined geometric shapes in the step 1.1 into the central position of the container 1, then pouring the middle-layer simulated lunar soil 6 into the container 1, enabling the upper surface of the simulated lunar soil to be 5-8mm higher than the surface of the ice cubes 2 with the determined geometric shapes, compacting the middle-layer simulated lunar soil 6 to a compactness of 85%, and enabling the thickness of the compacted middle-layer simulated lunar soil 6 to be 75-80mm;
1.5 laying the top simulated lunar soil 7 on the middle simulated lunar soil 6, wherein the compactness of the top simulated lunar soil 7 is 70%, and the thickness is 5-10mm;
1.6 vertically pressing the weight 4 onto the simulated lunar soil 7 on the top layer;
1.7 putting the container 1, the ice cubes 2, the simulated lunar soil 3 and the weights 4 in the state of completing the steps 1.2 to 1.5 into an incubator, taking out after the heating temperature T is 50+/-5 ℃ and the heating time M is 20+/-2.5 minutes, and immediately putting into a cryogenic incubator at-25 to-20 ℃ for freezing for 40 minutes.
1.8 The preparation of the shape of the ice cubes 2 is completed.
The method can realize the rapid cementation between the water ice surface and the simulated lunar soil particles by a mode of heating under pressure and then rapidly cooling and freezing, and simultaneously can realize the preparation of quantitative size and shape of the water ice lunar soil under a certain depth of a permanent shadow area of a moon, and simulate the possible existence form of the water ice lunar soil at the bottom of a pit of the permanent shadow area of a south pole of the moon.
Drawings
FIG. 1 is a schematic diagram of hardware involved in a method of manufacturing a simulated lunar soil containing water ice shape;
FIG. 2 is a schematic illustration of the shape of an ice cube;
FIG. 3 is a schematic diagram of a simulated lunar soil classification;
FIG. 4 is a schematic illustration of a size marker;
FIG. 5 is a schematic view of a weight;
FIG. 6 is a schematic diagram of simulated lunar soil particle size distribution;
wherein: 1. the device comprises a container 2, ice cubes 3, simulated lunar soil 4, weights 5, a bottom layer, a middle layer and a top layer, wherein the bottom layer is simulated lunar soil 6, and the top layer is simulated lunar soil.
Detailed Description
1. A preparation method for simulating the shape of water-containing ice in lunar soil comprises the following steps:
1.1 preparation in earlier stage:
1) The container 1 is a cylinder without a cover, as shown in figure 4, the outer diameter D1 is 130-135mm, the inner diameter D2 is 132-136mm, and the height h1 is 100-105mm;
2) The ice cubes 2 are respectively in the shape of sphere a, cube b, cuboid c, triangular pyramid d, cone e and cylinder f, as shown in fig. 2;
specific size ranges for ice cubes 2:
the radius of the sphere a is 40-45mm;
The side length of the cube b is 80-85mm;
The length of the cuboid c is 70-75mm, the width is 70-75mm, and the height is 80-85mm;
the bottom side length of the triangular pyramid d is The height is 80-85mm;
the bottom radius of the cone e is 40-45mm, and the height is 80-85mm;
the diameter of the cylinder f is 80-85mm, and the height is 80-85mm;
3) The simulated lunar soil 3 is shown in fig. 3: the method is divided into bottom simulated lunar soil 5, middle simulated lunar soil 6 and top simulated lunar soil 7, and the grain size of the simulated lunar soil is 10-1000 μm in the grain size range of real Apollo-16 lunar soil (shown in figure 6).
4) The weight 4 is shown in fig. 5: the diameter D4 is 128-133mm, the thickness h4 is 20-25mm, and the weight is 5-7.5kg;
1.2 precooling the container 1, the ice cubes 2, the simulated lunar soil 3 and the weights 4 in the freezing chamber at the temperature of minus 10 ℃ in the step 1.1, so that the container 1, the ice cubes 2, the simulated lunar soil 3 and the weights 4 reach heat balance;
1.3 as shown in fig. 4, paving bottom simulated lunar soil 5 at the bottom of the container 1, compacting to 75% compactness, and thickness of 8-10mm;
1.4 as shown in fig. 3, vertically placing the ice cubes 2 with the determined geometric shapes in the step 1.1 into the central position of the container 1, then pouring the middle layer simulated lunar soil 6 into the container 1, enabling the upper surface of the simulated lunar soil to be 5-8mm higher than the surface of the ice cubes 2 with the determined geometric shapes, compacting the middle layer simulated lunar soil 6 to 85% compactness, and enabling the thickness of the compacted middle layer simulated lunar soil 6 to be 75-80mm;
1.5 As shown in figure 3, paving the top simulated lunar soil 7 on the middle simulated lunar soil 6, wherein the compactness of the top simulated lunar soil 7 is 70%, and the thickness is 5-10mm;
1.6 vertically pressing the weight 4 onto the simulated lunar soil 7 on the top layer;
1.7 putting the container 1, the ice cubes 2, the simulated lunar soil 3 and the weights 4 in the state of completing the steps 1.2 to 1.5 into an incubator, taking out after the heating temperature T is 50+/-5 ℃ and the heating time M is 20+/-2.5 minutes, and immediately putting into a cryogenic incubator at-20 ℃ for freezing for 40 minutes.
1.8 The preparation of the shape of the ice cubes 2 is completed.
Claims (1)
1. A method for preparing simulated water-containing ice lunar soil, which is characterized by comprising the following steps:
1.1 Early preparation:
1) The container (1) is a cylinder without a cover, the outer diameter D1 of the container is 130-135mm, the inner diameter D2 of the container is 132-136mm, and the height h1 of the container is 100-105mm;
2) The ice cubes (2) are respectively in the shape of a sphere (a), a cube (b), a cuboid (c), a triangular pyramid (d), a cone (e) and a cylinder (f);
specific size range of ice cubes (2):
the radius of the sphere (a) is 40-45mm;
The side length of the cube (b) is 80-85mm;
the length of the cuboid (c) is 70-75mm, the width is 70-75mm, and the height is 80-85mm;
The base length of the triangular pyramid (d) is 20 -40Mm, 80-85mm high;
the bottom radius of the cone (e) is 40-45mm, and the height is 80-85mm;
the diameter of the cylinder (f) is 80-85mm, and the height is 80-85mm;
3) Lunar soil simulation (3): the method is divided into a bottom simulated lunar soil (5), a middle simulated lunar soil (6) and a top simulated lunar soil (7), and the grain size of the simulated lunar soil is in the range of 10-1000 when the grain size of the real Apollo-16 lunar soil m；
4) Weight (4): the diameter D4 is 128-133mm, the thickness h4 is 20-25mm, and the weight is 5-7.5kg;
1.2 The container (1), the ice cubes (2), the simulated lunar soil (3) and the weights (4) in the step 1.1 are between-15 and-10 Precooling in a freezer compartment;
1.3 laying bottom simulated lunar soil (5) at the bottom of the container (1), compacting to 75% compactness, and thickness of 8-10mm;
1.4 vertically placing the ice cubes (2) with the determined geometric shapes in the step 1.1 into the central position of the container (1), then pouring the middle-layer simulated lunar soil (6) into the container (1), enabling the upper surface of the simulated lunar soil to be 5-8mm higher than the surface of the ice cubes (2) with the determined geometric shapes, compacting the middle-layer simulated lunar soil (6) to a compactness of 85%, wherein the thickness of the compacted middle-layer simulated lunar soil (6) is 75-80mm;
1.5 Paving the top layer simulated lunar soil (7) on the middle layer simulated lunar soil (6) with the compactness of 70% and the thickness of 5-10mm;
1.6 vertically pressing the weight (4) onto the top simulated lunar soil (7);
1.7 placing the container (1), the ice cubes (2), the simulated lunar soil (3) and the weights (4) in the state of completing the steps 1.2 to 1.6 into an incubator at a heating temperature T of 50 5 0 C, heating time M was 20/>After 2.5 minutes, take out and put in-25 to-20/>Freezing for 40 minutes in a cryogenic tank;
1.8 And (5) preparing the water-containing ice lunar soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545151.6A CN115728115B (en) | 2022-12-02 | Preparation method for simulating shape of water-containing ice in lunar soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211545151.6A CN115728115B (en) | 2022-12-02 | Preparation method for simulating shape of water-containing ice in lunar soil |
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| Publication Number | Publication Date |
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| CN115728115A CN115728115A (en) | 2023-03-03 |
| CN115728115B true CN115728115B (en) | 2024-06-07 |
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