Distillation separation device suitable for glove box and beneficial to improving steam condensation efficiency

Abstract

The embodiment of the invention relates to the technical field of material separation by utilizing a distillation technology, in particular to a distillation separation device suitable for a glove box and favorable for improving the steam condensation efficiency, and the distillation separation device is used for separating a target component from a material to be separated and comprises a shell forming a containing cavity and a separation main body arranged in the containing cavity. The separation main body comprises an evaporation main body and a condensation main body; the condensation main body forms a condensation cavity, the evaporation main body forms an evaporation cavity, the evaporation cavity is used for containing to-be-separated materials, and target components are evaporated in the evaporation cavity, enter the condensation cavity and are cooled to form a solid state; and the separation main body further comprises a condensation extension part which is arranged on the outer side of the condensation main body, and the condensation extension part is used for communicating fluid of the containing cavity and the condensation cavity, so that steam which is not completely condensed in the condensation cavity can enter the condensation extension part to be condensed. According to the distillation separation device provided by the embodiment of the invention, the steam flowing path can be enlarged, so that the steam condensation efficiency is improved, and the separation effect is improved.

Description

Technical Field

[0001] The embodiments of this application relate to the technical field of material separation using distillation technology, and specifically to a distillation separation apparatus suitable for glove boxes that is beneficial for improving steam condensation efficiency. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] After spent fuel reprocessing and electrolytic refining, radioactive nuclides and a small amount of molten salt form powdery raw materials. The molten salt in the radioactive nuclides needs to be removed to achieve the recovery of the radioactive nuclides.

[0004] The difference in vapor pressure between radioactive nuclides and molten salt is typically utilized to separate the molten salt from the powdered raw material using a distillation separation device, thus achieving the recovery of radioactive nuclides. The distillation separation device includes a separation body. During the distillation of the powdered raw material, it is placed in the separation body. The molten salt evaporates within the separation body, forming vapor. This vapor can condense into a solid state, thereby separating the molten salt from the radioactive nuclide. However, the condensation process suffers from relatively low steam condensation efficiency. Summary of the Invention

[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] To address the aforementioned problems, embodiments of this application provide a distillation separation apparatus suitable for glove boxes that is beneficial for improving steam condensation efficiency.

[0007] The distillation separation apparatus provided in the embodiments of this application is used to separate a target component from a material to be separated. It includes a shell forming a receiving cavity and a separation body disposed within the receiving cavity. The separation body includes an evaporation body and a condensation body; the condensation body forms a condensation chamber, and the evaporation body forms an evaporation chamber. The evaporation chamber is used to contain the material to be separated, and the target component evaporates in the evaporation chamber and enters the condensation chamber to be cooled and form a solid. The separation body also includes a condensation extension member disposed outside the condensation body. The condensation extension member is used to fluidly connect the receiving cavity and the condensation chamber, so that incompletely condensed vapor in the condensation chamber can enter the condensation extension member and be condensed.

[0008] The distillation separation apparatus provided in the embodiments of this application increases the steam flow path by allowing the incompletely condensed steam in the condensation chamber to enter the condensation extension for condensation, thereby improving the efficiency of steam condensation and thus improving the separation effect. Attached Figure Description

[0009] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0010] Figure 1 This is a schematic diagram of the distillation separation apparatus provided in the embodiments of this application.

[0011] Figure 2 yes Figure 1 A schematic cross-sectional view of the distillation separation apparatus is shown.

[0012] Figure 3 yes Figure 2 A partially enlarged view of the actuator of the distillation separation apparatus is shown.

[0013] Figure 4 yes Figure 2 A cross-sectional schematic diagram of the main body of the distillation and separation apparatus is shown.

[0014] Figure 5 This is a cross-sectional schematic diagram of the separation body of the distillation separation apparatus provided in the embodiments of this application.

[0015] Figure 6 This is a schematic diagram of the evaporation body of the distillation separation apparatus provided in the embodiments of this application.

[0016] Figure 7 yes Figure 6 A top view of the evaporator body is shown.

[0017] Figure 8 yes Figure 6 A cross-sectional view of the evaporator body is shown.

[0018] Figure 9 yes Figure 6 The diagram shows the structure of the evaporator body assembled with the housing components of the distillation separation apparatus provided in the embodiments of this application.

[0019] Figure 10 yes Figure 9 The diagram shows a cross-sectional view of the structure.

[0020] Figure 11 This is a schematic diagram of the structure of the lowest tray in the housing assembly of the distillation and separation apparatus provided in the embodiments of this application.

[0021] Figure 12 yes Figure 11 The diagram shows a cross-sectional view of the structure.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Distillation separation apparatus;

[0024] 10. Shell; 101. Receiving cavity; 102. Vacuum port; 103. Bottom opening; 11. Shell body; 12. Outlet pipe section; 13. Sealing connection; 131. Flange; 132. Sealing ring;

[0025] 20. Separation body; 21. Evaporation body; 211. Evaporation chamber; 212. Steam passage; 213. Connecting chamber; 2101. Evaporation positioning component; 2102. Evaporation cover component; 22. Condensing body; 221. Condensing chamber; 222. Conical section; 223. Arc section; 23. Condensing extension component; 24. Receiving assembly; 241. Tray; 2411. Base plate; 2412. Side plate; 2410. Positioning groove; 242. Airflow passage; 243. Support component; 2430. Lifting component; 25. Insulation section; 251. 252. Second heat insulation positioning component; 26. Evaporation heating component; 261. Upper connecting ring component; 262. Lower connecting ring component; 263. Heating element; 27. Insulation assembly; 270. Insulation cavity; 271. Bottom insulation component; 272. Radial insulation component; 273. Top insulation component; 28. Cooling component; 280. Cooling cavity; 29. ​​Auxiliary heating component; 291. Upper connecting ring component; 292. Lower connecting ring component; 293. Auxiliary heating element; 201. Sealing component; 202. Condensation positioning fitting component;

[0026] 30. Lifting mechanism; 31. Guide component; 32. Moving platform; 33. Drive component;

[0027] 40. Actuator; 41. Clamping component; 42. Moving component; 421. First rotating component; 422. Second rotating component; 423. Telescopic component; 424. Lifting component; 425. Lifting drive component; 426. Lifting mating component;

[0028] 50. Cover; 501. First positioning component; 502. Second positioning component;

[0029] 60. Anti-tilt assembly; 61. First set of elastic elements; 62. Second set of elastic elements;

[0030] 70. Thermal insulation component; 71. First thermal insulation element; 710. First positioning groove; 72. Second thermal insulation element; 73. Thermal insulation felt;

[0031] 80. Operating platform; 81. Material receiving unit.

[0032] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0033] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0034] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0035] In related technologies, the material to be separated is placed in an evaporation chamber, and the vapor formed by the evaporation of the target component in the material enters a condensation chamber for condensation. When the amount of vapor in the condensation chamber is small, the vapor is not easily condensed, resulting in low condensation efficiency.

[0036] To address the aforementioned problems, embodiments of this application provide a distillation separation apparatus suitable for glove boxes that is beneficial for improving steam condensation efficiency.

[0037] Figure 1 This is a schematic diagram of the distillation separation apparatus provided in the embodiments of this application. Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the distillation separation apparatus. Figure 4 yes Figure 2 A schematic cross-sectional view of the main body of the distillation and separation apparatus is shown. See also... Figure 1 , Figure 2 and Figure 4This application provides a distillation separation apparatus 100 for separating a target component from a material to be separated. The distillation separation apparatus 100 provided in this application includes a housing 10 forming a receiving cavity 101 and a separation body 20 disposed within the receiving cavity 101. The separation body 20 may include an evaporation body 21 and a condensation body 22; the condensation body 22 forms a condensation chamber 221, and the evaporation body 21 forms an evaporation chamber 211. The evaporation chamber 211 is used to contain the material to be separated, and the target component evaporates in the evaporation chamber 211 and enters the condensation chamber 221 to be cooled and form a solid. The separation body 20 may also include a condensation extension 23 disposed outside the condensation body 22 for fluid communication between the receiving cavity 101 and the condensation chamber 221, so that incompletely condensed vapor in the condensation chamber 221 enters the condensation extension 23 to be condensed.

[0038] The distillation separation apparatus 100 provided in the embodiments of this application increases the steam flow path by allowing the incompletely condensed steam in the condensation chamber 221 to enter the condensation extension 23 for condensation, thereby improving the efficiency of steam condensation and thus improving the separation effect.

[0039] In some embodiments, the material to be separated may be raw material powder formed after spent fuel electrolytic refining; the target component may be molten salt remaining in the spent fuel electrolytic refining material to be separated.

[0040] See Figure 4 In some embodiments, the condensation extension 23 can be a spiral tube extending along the outer surface of the condensation body 22. In such embodiments, by configuring the condensation extension 23 as a spiral tube, the flow path of the airflow within the condensation extension 23 can be longer within a limited space, so that the steam entering the condensation extension 23 can be condensed during the flow process, and it is difficult for it to flow out of the condensation extension 23 into the receiving cavity 101 and cause contamination to the components inside the receiving cavity 101.

[0041] In some embodiments, the condensation extension 23 may be welded to the outer surface of the condensation body 22.

[0042] See Figure 4 In some embodiments, the distillation separation apparatus 100 may further include a cooling element 28 disposed within the receiving cavity 101 and located radially outside the condenser body 22, for providing cooling to the condenser body 22 and the condenser extension 23. In such embodiments, providing cooling to the condenser body 22 and the condenser extension 23 via the cooling element 28 facilitates the condensation of vapor within the condenser cavity 221 and the condenser extension 23.

[0043] In some embodiments, the cooling element 28 forms a cooling cavity 280, into which a cooling medium is circulated to provide cooling for the condenser body 22 and the condenser extension 23. The cooling medium may be cooling water. The cooling element 28 may be connected to the housing 10.

[0044] In some embodiments, the condenser extension 23 is closer to the cooling element 28 than the condenser body 22. In such embodiments, the condenser extension 23 can achieve better condensation and prevent vapor from being extracted from the distillation separation device 100 through the vacuum port 102.

[0045] See Figure 4 In some embodiments, the distillation separation apparatus 100 may further include an auxiliary heating element 29 disposed between the cooling element 28 and the condensation extension element 23, for heating the condensation extension element 23 so that the solid material condensed in the condensation extension element 23 is liquefied and returned to the condensation chamber 221. In such embodiments, the liquefaction of the solid material condensed in the condensation extension element 23 by the auxiliary heating element 29 and its return to the condensation chamber 221 facilitates improved collection efficiency.

[0046] In some embodiments, the auxiliary heating element 29 may include an upper connecting ring 291, a lower connecting ring 292, and a plurality of auxiliary heating elements 293, each of which is connected to the upper connecting ring 291 and the lower connecting ring 292 respectively.

[0047] Figure 5 This is a schematic cross-sectional view of the separation body 20 of the distillation separation apparatus 100 provided in an embodiment of this application. See also... Figure 4 and Figure 5 In some embodiments, the condenser body 22 is disposed below the evaporator body 21. The condenser body 22 includes a tapered section 222 extending from top to bottom with a gradually decreasing diameter, and an arcuate section 223 that connects to the bottom of the tapered section 222 to seal the bottom of the tapered section 222. The condenser extension 23 extends spirally along the outer surface of the tapered section 222 of the condenser body 22 and communicates with the condenser cavity 221 above the arcuate section 223. In such embodiments, the condenser body 22 is configured with a tapered section 222 and an arcuate section 223 to facilitate the flow of condensed and liquefied material along the tapered section 222 into the arcuate section 223, and to facilitate the pouring out of the solid material collected in the arcuate section 223.

[0048] The arc segment 223 can be, for example, a hemisphere.

[0049] In some embodiments, a portion of the molten salt in the raw material to be separated enters the condenser body 22 after evaporation. In some embodiments, the condenser body 22 may be made of ferrochrome alloy, which has good resistance to molten salt corrosion.

[0050] In some embodiments, the bottom of the evaporation chamber 211 is arc-shaped to facilitate the pouring out of the remaining material in the evaporation chamber 211.

[0051] In some embodiments, the condensation extension 23 is connected to the bottom of the conical section 222, and the solid material condensed in the condensation extension 23 can flow into the arc section 223 of the condensation body 22 after liquefaction.

[0052] In some embodiments, the auxiliary heating element 29 may also heat the conical section 222 of the condenser body 22 so that the solid material condensed in the conical section 222 liquefies and flows into the arc section 223.

[0053] See Figure 4 In some embodiments, the distillation separation apparatus 100 may further include an evaporation heating element 26 disposed in the receiving cavity 101, with the evaporation body 21 disposed radially inside the evaporation heating element 26 to heat the evaporation body 21. In such embodiments, the evaporation body 21 is heated by the evaporation heating element 26 to distill the material to be separated within the evaporation body 21.

[0054] See Figure 4 In some embodiments, the evaporation heating element 26 may include an upper connecting ring 261, a lower connecting ring 262, and a plurality of heating elements 263, each heating element 263 being connected to the upper connecting ring 261 and the lower connecting ring 262 respectively. In such embodiments, the plurality of heating elements 263 can be disposed radially outside the evaporation body 21 via the upper connecting ring 261 and the lower connecting ring 262, so that the heating elements 263 can heat the evaporation body 21. The upper connecting ring 261 and the lower connecting ring 262 can be connected to the housing 10 respectively.

[0055] join Figure 4 In some embodiments, the distillation separation apparatus 100 may further include a heat insulation component 27 disposed in the receiving cavity 101, forming a heat insulation cavity 270, and the evaporation heating element 26 disposed within the heat insulation cavity 270. In such embodiments, the heat loss of the evaporation heating element 26 can be reduced by the heat insulation component 27, thereby improving the heating effect of the evaporation heating element 26 on the evaporation body 21.

[0056] In some embodiments, the cooling element 28 is disposed on the outside of the insulation cavity 270.

[0057] join Figure 4In some embodiments, the insulation assembly 27 may include a bottom insulation member 271, a radial insulation member 272, and a top insulation member 273. The bottom insulation member 271 is disposed above and supported by the cooling member 28, and forms a through hole for the separation body 20 to pass through. The radial insulation member 272 is disposed above and supported by the bottom insulation member 271, and the evaporation heating member 26 is disposed on the radial insulation member 272. The top insulation member 273 is disposed above and supported by the radial insulation member 272. In such an embodiment, by having the bottom insulation member 271 supported by the cooling member 28, the radial insulation member 272 supported by the bottom insulation member 271, and the top insulation member 273 supported by the radial insulation member 272, the assembly and support of the insulation assembly 27 within the receiving cavity 101 are achieved.

[0058] In some embodiments, the distillation separation apparatus 100 may further include a heat insulation layer (i.e., a bottom insulation element 271) disposed between the evaporation heating element 26 and the cooling element 28. Specifically, since the bottom insulation element 271 is disposed above the cooling element 28 and the evaporation heating element 26 is disposed within the insulation cavity 270, it is equivalent to the bottom insulation element 271 being disposed between the evaporation heating element 26 and the cooling element 28, thereby providing better heat insulation for the cooling element 28 and the evaporation heating element 26.

[0059] In some embodiments, the evaporation body 21 also forms a plurality of steam channels 212 in fluid communication with the condensation chamber 221. The steam formed by the evaporation of the target component in the evaporation chamber 211 enters the condensation chamber 221 through the steam channels 212 and is cooled to form a solid, thereby preventing the steam from entering the containment chamber 101.

[0060] Figure 6 This is a schematic diagram of the evaporation body 21 of the distillation separation apparatus 100 provided in an embodiment of this application. See also... Figure 6 In some embodiments, multiple steam channels 212 are located on the same side of the evaporation chamber 211, and the center of the evaporation chamber 211 is offset from the center of the evaporation body 21 in a direction away from the multiple steam channels 212. In such embodiments, the arrangement of the steam channels 212 causes the center of gravity of the evaporation body 21 to be offset to one side and not in the center (i.e., the evaporation body 21 is off-center), thereby making the temperature of the evaporation chamber 211 and the steam channels 212 closer, which helps to reduce the resistance of steam flowing through the steam channels 212 to the condensation chamber 221. In embodiments where the evaporation chamber 211 is not connected to the receiving chamber 101, since the evaporation chamber 211 is only connected to the condensation chamber 221 through the steam channels 212, the flow resistance of the steam channels 212 has a more significant impact on the steam flow. The embodiments of this application, through the above-described arrangement, reduce the resistance of steam flowing through the steam channels 212 to the condensation chamber 221.

[0061] Figure 7 yes Figure 6 A top view of the evaporator body 21 is shown. See also... Figure 7 In some embodiments, multiple steam channels 212 are arranged along the same circumference concentric with the evaporator body 21. In such embodiments, it is beneficial to ensure that steam flows evenly to each steam channel 212, and also to ensure that the temperature of each steam channel 212 is more uniform.

[0062] Figure 8 yes Figure 6 A cross-sectional view of the evaporator body 21 is shown. See also... Figure 8 In some embodiments, the closest distance between the steam channel 212 and the radial surface of the evaporator 21 is the same as the closest distance between the evaporator cavity 211 and the radial surface of the evaporator 21. In such embodiments, it is beneficial to heat the evaporator cavity 211; at the same time, it is also beneficial to make the temperature of the steam channel 212 close to the temperature of the evaporator cavity 211, thereby reducing the resistance to the flow of steam through the steam channel 212 to the condenser cavity 221.

[0063] See Figure 8 In some embodiments, the top of the evaporator body 21 forms a communicating chamber 213 that communicates with the evaporation cavity 211 and a plurality of steam channels 212; wherein the communicating chamber 213 is concentric with the evaporator body 21, and the closest distance between the communicating chamber 213 and the radial surface of the evaporator body 21 is less than the closest distance between the steam channels 212 and the radial surface of the evaporator body 21. In such embodiments, it is more conducive to the smooth entry of steam into the steam channels 212.

[0064] In related technologies, the evaporation chamber 211 is typically configured as a single, enclosed unit. The advantage of this single-unit design is that there is no steam leakage at the top of the evaporation chamber 211. Furthermore, the enclosed design allows for a larger space connecting the evaporation chamber 211 and the steam channel 212, enabling a large amount of steam to accumulate above the evaporation chamber 211. This steam then flows more easily through the steam channel 212 to the condensation chamber 221, allowing steam to flow to the condensation chamber 221 even without the evaporation chamber 211 being eccentrically positioned.

[0065] In some embodiments of this application, to facilitate the collection of unevaporated material in the evaporation chamber 211 by the actuator 40, see [reference needed]. Figure 4 and Figure 5An opening is formed at the upper end of the evaporator body 21. The separation body 20 may also include an evaporator cover 2102, which is spliced ​​with the evaporator body 21 to seal the communicating chamber 213. Because the evaporator cover 2102 is spliced ​​with the evaporator body 21, steam in the evaporator chamber 211 will leak from the connection point. Therefore, by setting the evaporator chamber 211 eccentrically, the resistance to steam flowing through the steam channel 212 to the condenser chamber 221 is reduced, which helps to reduce steam leakage. Furthermore, by using the condenser extension 23 to evacuate the condenser chamber 221, steam leakage can be further reduced.

[0066] In the embodiments of this application, splicing two components means that one component is placed or stacked on top of another component and supported by the other component. The component on top can move vertically upward under the action of external force to separate from the component below.

[0067] To further reduce steam leakage, the inventors of this application discovered that when the gas space above the evaporation chamber 211 is small, steam leakage can be reduced by preventing the accumulation of large amounts of steam. Therefore, in some embodiments, the height of the connecting chamber 213 can be set to be approximately the same as the diameter of the steam channel 212. This not only makes the space of the connecting chamber 213 smaller, but also facilitates the entry of steam from the connecting chamber 213 into the steam channel 212, thereby reducing steam accumulation and preventing steam leakage.

[0068] In some embodiments, the bottom end of the evaporation cover 2102 forms a cover positioning member, and the top end of the evaporation body 21 forms a steam positioning fitting member. The evaporation cover 2102 and the evaporation body 21 are spliced ​​together through the cooperation of the cover positioning member and the steam positioning fitting member.

[0069] The cover positioning component can be a first evaporation step surface formed at the bottom end of the evaporation cover 2102, and the steam positioning fitting component can be a second evaporation step surface formed at the top end of the evaporation body 21. The evaporation body 21 and the evaporation cover 2102 can be spliced ​​by the cooperation of the first evaporation step surface and the second evaporation step surface.

[0070] In some embodiments, the height of the communicating chamber 213 and the diameter of the steam passage 212 are substantially the same, and the difference between them can be no more than 20% of the smaller of the two diameters.

[0071] In some embodiments, the evaporator cover 2102 and the evaporator body 21 can also be detachably connected by threaded fasteners. When the material in the evaporator body 21 is poured out using the actuator 40, the evaporator body 21 is first removed by the clamp 41, and the threaded fasteners (such as screws) between the evaporator body 21 and the evaporator cover 2102 are removed manually in the glove box; then, the evaporator cover 2102 is removed by suction of the evaporator body 2102 by negative pressure, and the evaporator body 21 is inverted to pour out the material.

[0072] In some embodiments, the evaporation heating element 26 is arranged concentrically with the evaporation body 21. In such embodiments, the evaporation heating element 26, which is concentrically arranged with the evaporation body 21, facilitates uniform heating of the evaporation body 21.

[0073] See Figure 4 In some embodiments, the housing 10 forms a bottom opening 103 communicating with the receiving cavity 101. In some embodiments, the distillation separation apparatus 100 may further include a cover 50 and a lifting mechanism 30. The separation body 20 cooperates with the cover 50 for support, and the cover 50 is used to seal the bottom opening 103 of the receiving cavity 101. The lifting mechanism 30 is used to move the cover 50 and the separation body 20 up and down, so that the separation body 20 can enter and exit the receiving cavity 101 through the bottom opening 103, and to seal or open the bottom opening of the receiving cavity 101 with the cover 50.

[0074] In some embodiments, the lifting mechanism 30 can drive the evaporator 21 and the condenser 22 to rise and fall.

[0075] Because the evaporator 21 is eccentrically positioned, the separation body 20 is prone to tilting during lifting and lowering; and because the entire separation body 20 is quite long, even a small amount of tilting will cause a significant shift at the end of the separation body 20, interfering with the heating or insulation components inside the housing 10.

[0076] To address the aforementioned issues, in some embodiments, the distillation separation apparatus 100 may further include an anti-tilting component 60. The anti-tilting component 60 is disposed between the lifting mechanism 30 and the cover 50 to prevent the separation body 20 from tilting as a whole due to its axis deviating from vertical during lifting. In such embodiments, by providing the anti-tilting component 60 between the lifting mechanism 30 and the cover 50, the overall tilting of the separation body 20 during lifting is prevented, thus avoiding interference with heating or insulation components within the housing 10.

[0077] The inventors of this application discovered that, due to the eccentric arrangement of the separating body 20, the gravity on one side of the eccentric body 20 is greater than that on the other side. When the separating body 20 is connected to the lifting mechanism 30 via a rigid member, the rigid member between the separating body 20 and the lifting mechanism 30 is subjected to shear force caused by the eccentricity, making it prone to breakage. The inventors of this application further discovered that when both sides of the separating body 20 are connected to the lifting mechanism 30 via elastic members of the same rigidity, the deformation on the eccentric side is greater than that on the other side, causing the separating body 20 to tilt. Since the overall height of the separating body 20 is relatively high, even a small amount of tilting will cause a significant offset at the ends, thus interfering with the evaporation heating element 26 or the heat preservation component 27 inside the shell 10.

[0078] See Figure 4 In some embodiments, the anti-tilt assembly 60 may include a first set of elastic elements 61 and a second set of elastic elements 62. The first set of elastic elements 61 is disposed at the bottom of one eccentric side of the separating body 20, and the second set of elastic elements 62 is disposed opposite to the first set of elastic elements 61 at the bottom of the other side of the separating body 20; wherein, the rigidity of the first set of elastic elements 61 is greater than the rigidity of the second set of elastic elements 62. In the embodiments of this application, by providing elastic elements with different rigidities on one eccentric side and the other side of the separating body 20, it is beneficial to ensure that both sides of the separating body 20 maintain the same deformation, thereby preventing the separating body 20 from tilting; at the same time, providing elastic elements between the separating body 20 and the lifting mechanism 30 can reduce the impact of shear forces caused by eccentricity, making it less prone to breakage.

[0079] In some embodiments, the first set of elastic elements 61 comprises a plurality of first springs, and the second set of elastic elements 62 comprises a plurality of second springs; wherein the stiffness of the first springs is greater than the stiffness of the second springs. In such embodiments, it is advantageous to maintain the same deformation on both sides of the separating body 20, thereby preventing the separating body 20 from tilting.

[0080] In some embodiments, the elasticity of the first spring and the second spring can be determined by calculation.

[0081] See Figure 4 and Figure 5 In some embodiments, the distillation separation apparatus 100 may further include a heat insulation component 70 disposed between the cover 50 and the separation body 20 for heat insulation between the separation body 20 and the cover 50. In such embodiments, heat insulation between the separation body 20 and the cover 50 by the heat insulation component 70 can prevent the cover 50 from affecting the seal of the bottom opening 103 of the receiving cavity 101.

[0082] In some embodiments, the heat insulation component 70 is disposed between the arcuate segment 223 of the condenser body 22 and the cover 50.

[0083] See Figure 4 and Figure 5 In some embodiments, the heat insulation assembly 70 may include a first heat insulation element 71 and a second heat insulation element 72. The first heat insulation element 71 is provided with a first positioning groove 710, and the bottom of the separation body 20 is disposed in the first positioning groove 710. The second heat insulation element 72 is connected to the first heat insulation element 71 and is disposed on the cover 50. In such embodiments, the first heat insulation element 71 and the second heat insulation element 72 are disposed between the cover 50 and the separation body 20 to achieve heat insulation between the separation body 20 and the cover 50.

[0084] In some embodiments, the first heat insulation element 71 and the second heat insulation element 72 are both graphite blocks.

[0085] In some embodiments, the first thermal insulation member 71 and the second thermal insulation member 72 may be connected using fasteners.

[0086] See Figure 4 and Figure 5 In some embodiments, the heat insulation assembly 70 may further include a multi-layer heat insulation felt 73, which is fitted between the first heat insulation member 71 and the cover member 50 and onto the second heat insulation member 72. This multi-layer heat insulation felt 73 is used to assist the anti-tilt assembly 60 by deforming to prevent the separation body 20 from tilting as a whole due to its axis deviating from vertical during lifting and lowering. In such embodiments, because the multi-layer heat insulation felt 73 is deformable, it can provide a cushioning effect to prevent the separation body 20 from tilting as a whole.

[0087] In some embodiments, the heat insulation felt 73 may be a graphite rigid felt. In some embodiments, the temperature of the bottommost heat insulation felt 73 is 100–200°C.

[0088] See Figure 4 In some embodiments, the housing 10 may include a housing body 11, an outlet pipe section 12 connected to the bottom end of the housing body 11, and a sealing connector 13 disposed at the bottom end of the outlet pipe section 12. In some embodiments, the lifting mechanism 30 drives the cover 50, the heat insulation assembly 70, and the separation body 20 to rise so that the cover 50 abuts against the sealing connector 13, thereby sealing the receiving cavity 101. In such embodiments, the receiving cavity 101 can be sealed by the sealing connector 13 to maintain a vacuum in the receiving cavity 101.

[0089] When the cover 50 abuts against the sealing connector 13, the evaporator 21 is located in the insulation chamber 270, and the condenser 22 is located in the cooling chamber 280.

[0090] See Figure 4In some embodiments, the sealing connector 13 may include a flange 131 and a sealing ring 132 disposed on the end face of the flange 131. In such embodiments, the receiving cavity 101 can be sealed by the sealing ring 132 disposed on the end face of the flange 131.

[0091] In some embodiments, the lifting mechanism 30 raises the cover 50, the heat insulation component 70, and the separation body 20 so that the cover 50 abuts against the sealing ring 132, thereby sealing the receiving cavity 101.

[0092] See Figure 4 In some embodiments, the cover 50 is provided with a first positioning member 501, which is used to position the second heat insulation member 72. In such embodiments, after the second heat insulation member 72 is engaged with the cover 50, it can smoothly enter the receiving cavity 101.

[0093] See Figure 4 In some embodiments, the first positioning member 501 is a positioning groove recessed downward from the upper surface of the cover member 50. In such embodiments, the second heat insulation member 72 can enter the positioning groove to cooperate with the cover member 50 and be supported by the cover member 50.

[0094] See Figure 4 In some embodiments, the cover 50 is further provided with a second positioning member 502, which is used to position at least one layer of insulation felt 73 located at the bottom of the multilayer insulation felt 73. In such embodiments, by positioning at least one layer of insulation felt 73 located at the bottom by the second positioning member 502, it is possible to position all the insulation felts 73.

[0095] See Figure 4 In some embodiments, the second positioning member 502 may be a positioning ring extending upward from the upper surface of the cover member 50. In such embodiments, at least one layer of heat insulation felt 73 located at the bottom is radially inside the second positioning member 502 to achieve positioning.

[0096] In related technologies, the evaporation chamber 211 and the condensation chamber 221 are designed with open tops. To improve distillation efficiency and lower the boiling point of the target component, the entire containment chamber 101 is usually evacuated to perform distillation under vacuum conditions. When the evaporation chamber 211 and the condensation chamber 221 are directly connected, it is difficult to reduce the vacuum level inside the evaporation chamber 211 by evacuating the containment chamber 101. Furthermore, since the evaporation body 21 and the condensation body 22 can be moved into and out of the containment chamber 101 through the bottom opening 103 by the lifting mechanism 30, it is difficult to set up a vacuum line to directly evacuate the condensation body 22 in this case.

[0097] For this question, see [link / reference] Figure 4In some embodiments, the housing 10 is provided with a vacuum port 102 for evacuating the receiving cavity 101. In some embodiments, the lower end of the condensing extension 23 is in fluid communication with the condensing cavity 221, and the upper end of the condensing extension 23 forms an opening through which the vacuum port 102 evacuates the condensing cavity 221.

[0098] In this embodiment, by providing a condensation extension 23 to fluidly connect the receiving cavity 101 and the condensing cavity 221, the condensation extension 23 can be used to indirectly evacuate the condensing cavity 221 while the evacuation port 102 evacuates the receiving cavity 101, thereby providing the power for the steam in the evaporation cavity 211 to flow to the condensing cavity 221. Since the evaporation cavity 211 and the condensing cavity 221 are fluidly connected, evacuating the condensing cavity 221 can also put the evaporation cavity 211 under a vacuum, thereby distilling the material to be separated under vacuum conditions to lower the boiling point of the target component in the evaporation cavity 211 and improve the separation efficiency of the target component.

[0099] Furthermore, since the condensation extension member 23 is provided and the condensation chamber 221 is evacuated through the condensation extension member 23, the uncondensed vapor in the condensation chamber 221 can enter the condensation extension member 23 for condensation. In addition, since the separation body 20 also includes the condensation extension member 23, the condensation extension member 23 fluidly connects the receiving chamber 101 and the condensation chamber 221, thereby achieving both evacuation of the condensation chamber 221 and the evaporation chamber 211, while not affecting the entire separation body 20 being driven by the lifting mechanism 30 to enter and exit the receiving chamber 101 from the bottom opening 103.

[0100] Experiments have shown that the separation efficiency of the distillation separation device 100 with the above structure can reach over 99%.

[0101] In some embodiments, the condenser extension 23 is disposed inside the receiving cavity 101 and is not connected to the vacuum port 102. In such an embodiment, the opening formed at the upper end of the condenser extension 23 is located in the receiving cavity 101, and the condenser extension 23 is in fluid communication with the receiving cavity 101 through its opening, without directly connecting the condenser extension 23 to the vacuum port 102. Furthermore, since the lower end of the condenser extension 23 is in fluid communication with the condensation cavity 221, it is beneficial for the vapor in the condenser extension 23 to return to the condensation cavity 221 under gravity after liquefaction.

[0102] In some embodiments, the opening of the condenser extension 23 faces the vacuum port 102. In such embodiments, the opening arrangement is more advantageous for evacuating the evaporation chamber 211 and the condensation chamber 221 via the condenser extension 23 through the vacuum port 102.

[0103] In some embodiments, when the cover 50 abuts against the sealing connector 13, the opening of the condensation extension 23 faces the vacuum port 102.

[0104] See Figure 4 In some embodiments, the condenser body 22 is joined to the evaporator body 21 below it. In such embodiments, the condenser body 22 and the evaporator body 21 are joined together, which facilitates the assembly and disassembly of the separation body 20, and also facilitates the pouring out of materials.

[0105] See Figure 5 In some embodiments, an evaporation positioning element 2101 can be formed at the bottom of the evaporation body 21, and a condensation positioning fitting element 202 can be formed at the top of the condensation body 22. The evaporation body 21 and the condensation body 22 are joined together through the cooperation of the evaporation positioning element 2101 and the condensation positioning fitting element 202. In such embodiments, the cooperation of the evaporation positioning element 2101 and the condensation positioning fitting element 202 facilitates the joining of the evaporation body 21 and the condensation body 22, which helps to improve the stability after joining, and also facilitates the assembly and disassembly of the separation body 20.

[0106] See Figure 5 In some embodiments, the evaporation positioning member 2101 can be an evaporation step surface formed at the bottom end of the evaporation body 21, and the evaporation step surface forms an annular groove. Correspondingly, the condensation positioning fitting member 202 can be an annular protrusion formed at the top end of the condensation body 22, and the splicing is achieved by the cooperation of the annular groove and the annular protrusion.

[0107] See Figure 5 In some embodiments, the condensation positioning fitting 202 is welded to the top of the tapered segment 222 of the condensation body 22.

[0108] In some embodiments, the evaporation chamber 211 is directly connected to the condensation chamber 221. After the target component evaporates in the evaporation chamber 211, it enters the condensation chamber 221 without passing through the receiving chamber 101 and is cooled to form a solid. This arrangement can reduce steam overflow and avoid steam contamination of the components in the receiving chamber 101.

[0109] See Figure 4 and Figure 5In some embodiments, the separating body 20 may further include a heat insulation section 25, detachably disposed between the evaporating body 21 and the condensing body 22, for heat insulation of the evaporating body 21 and the condensing body 22; the heat insulation section 25 is disposed facing the wall of the through hole of the bottom insulation member 271. In such an embodiment, the condensing body 22 is spliced ​​to the evaporating body 21 through the heat insulation section 25, which can prevent the evaporating body 21 and the condensing body 22 from being directly spliced, avoiding adverse effects on the evaporating body 21 and the condensing body 22 due to a large temperature gradient at the splicing point.

[0110] See Figure 5 In some embodiments, a first heat insulation positioning member 251 is formed at the top of the heat insulation section 25, and the evaporation body 21 and the heat insulation section 25 are spliced ​​together by the cooperation of the evaporation positioning member 2101 and the first heat insulation positioning member 251. In such embodiments, the evaporation body 21 and the heat insulation section 25 can be accurately spliced ​​together by the cooperation of the evaporation positioning member 2101 and the first heat insulation positioning member 251.

[0111] In some embodiments, when the cover 50 abuts against the sealing connector 13, the heat insulation section 25 faces the bottom insulation member 271.

[0112] See Figure 5 The evaporation positioning element 2101 can be an evaporation step surface formed at the bottom of the evaporation body 21, and the first heat insulation positioning element 251 can be a heat insulation step surface formed at the top of the heat insulation section 25. The evaporation step surface and the heat insulation step surface are matched to realize the splicing of the evaporation body 21 and the heat insulation section 25.

[0113] See Figure 5 In some embodiments, the separation body 20 may further include a sealing element 201 disposed between the evaporation body 21 and the insulation section 25. In such embodiments, the sealing element 201 can achieve a seal between the evaporation body 21 and the insulation section 25, preventing steam leakage into the receiving cavity 101.

[0114] See Figure 5 In some embodiments, the sealing member 201 is disposed between the first heat insulation positioning member 251 and the evaporation positioning member 2101 to achieve a seal between the evaporation body 21 and the heat insulation section 25.

[0115] In some embodiments, a second heat insulation positioning member 252 is formed at the bottom end of the heat insulation section 25, and the condensing body 22 and the heat insulation section 25 are spliced ​​together by the cooperation of the condensing positioning fitting member 202 and the second heat insulation positioning member 252. In such an embodiment, the accurate splicing of the condensing body 22 and the heat insulation section 25 can be achieved by the cooperation of the condensing positioning fitting member 202 and the second heat insulation positioning member 252.

[0116] In some embodiments, the second heat insulation positioning member 252 may be a heat insulation step surface formed at the bottom end of the heat insulation section 25, the heat insulation step surface forming an annular groove, and the condensation positioning fitting member 202 may enter the annular groove to realize the splicing of the condensation body 22 and the heat insulation section 25.

[0117] In some embodiments, the insulation section 25, the evaporator body 21, and the seal 201 are made of the same material. In such embodiments, making the insulation section 25, the evaporator body 21, and the seal 201 of the same material can prevent poor sealing performance due to differences in thermal expansion.

[0118] In some embodiments, the materials of the insulation section 25, the evaporation body 21, and the sealing element 201 can all be graphite. Graphite has excellent heat preservation and high temperature resistance properties, and at the same time, graphite can also avoid contaminating the materials.

[0119] In some cases, the material to be separated is in powder form, and the product evaporated in the evaporation chamber 211 needs to be used as raw material for the next step of processing. During this next step, the product evaporated in the evaporation chamber 211 needs to be melted and shaped, which is a rather cumbersome operation. To address this problem, the embodiments of this application have made the following improvements.

[0120] Figure 9 yes Figure 6 The diagram shows the assembled structure of the evaporator 21 and the housing assembly 24 of the distillation separation apparatus 100 provided in the embodiments of this application. See also... Figure 9 In some embodiments, the distillation separation apparatus 100 may further include a receiving component 24, which is movably disposed in the evaporation chamber 211. The receiving component 24 includes a plurality of receiving elements having a preset shape. The receiving elements are used to receive the material to be separated. During the evaporation process, the residual components remaining after the target component evaporates melt in the receiving elements and form the same shape as the receiving elements.

[0121] In such an embodiment, by setting multiple containment elements and setting the multiple containment elements into a preset shape, the residual components remaining after the target component evaporates can form a preset shape, thereby eliminating the need for ingot melting and shaping processes when further processing is required, which helps to simplify the operation.

[0122] In some embodiments, the receiving element may be a flat-bottomed crucible, and the preset shape of the receiving element is the same as the shape of the raw material to be processed in the next step.

[0123] Figure 10 yes Figure 9 A cross-sectional view of the structure is shown. See also... Figure 10In some embodiments, the receiving assembly 24 may include a plurality of trays 241 stacked together along the height direction; each tray 241 includes a plurality of positioning slots 2410, and each receiving element is disposed in a corresponding positioning slot 2410. In such embodiments, it is convenient to assemble the receiving assembly 24 and to retain the receiving elements.

[0124] In some embodiments, the plurality of trays 241 are all made of graphite.

[0125] See Figure 10 In some embodiments, an airflow channel 242 is formed between two adjacent trays 241 for the target component to leave the tray 241 after evaporation. In such embodiments, the airflow channel 242 is provided so that the steam obtained after the target component evaporates can smoothly pass through multiple trays 241 into the communicating chamber 213, and thus into the steam channel 212.

[0126] Figure 11 This is a schematic diagram of the structure of the lowermost tray 241 in the housing assembly 24 of the distillation separation apparatus 100 provided in an embodiment of this application. See also... Figure 10 and Figure 11 In some embodiments, the receiving component 24 may further include a support member 243 connected to the lowermost tray 241, with the remaining tray 241 movably fitted onto the support member 243 and stacked along the extending direction of the support member 243. In such embodiments, it is convenient to use the support member 243 to place the receiving component 24 as a whole into or remove it from the evaporation chamber 211.

[0127] Figure 12 yes Figure 11 A cross-sectional view of the structure is shown. See also... Figure 11 and Figure 12 In some embodiments, tray 241 may include a base plate 2411 and a side plate 2412 extending upward from the periphery of the base plate 2411, with an airflow channel 242 formed in the side plate 2412. In such embodiments, since the vapor formed after the target component evaporates will flow upward, the airflow channel 242 formed in the side plate 2412 extending upward from the periphery of the base plate 2411 facilitates the exit of the vapor formed after the target component evaporates from tray 241. The base plate 2411 of the upper tray 241 can be directly pressed onto the side plate 2412 of the lower tray 241, which simplifies the assembly of the housing component 24.

[0128] See Figure 11 and Figure 12 In some embodiments, the upper end of the side plate 2412 is recessed downwards to form multiple slots, which form airflow channels 242. In such embodiments, the structure of the tray 241 is simplified.

[0129] See Figure 12 In some embodiments, the top of the support member 243 is provided with a lifting member 2430. In such embodiments, the entire receiving assembly 24 can be lifted out using the lifting member 2430, making the operation simple. The lifting member 2430 may be a through hole formed in the top of the support member 243.

[0130] Because spent fuel rods are radioactive, the resulting powdered raw materials are also radioactive, necessitating distillation separation within a glove box. In related technologies, operators must manually remove the separated products through the glove box's operating gloves, which is inconvenient.

[0131] To address the aforementioned issues, in some embodiments, the distillation separation apparatus 100 may further include an actuator 40 for emptying the material within the separation body 20 when the lifting mechanism 30 moves the separation body 20 to a position below the receiving cavity 101. In such embodiments, the lifting mechanism 30 moves the separation body 20 up and down, and the actuator 40 emptys the separated material from the separation body 20, facilitating the removal of the separated material from locations unsuitable for direct operation by personnel (e.g., inside a glove box).

[0132] In some embodiments, the distillation separation device 100 may be located inside a glove box.

[0133] See Figure 1 and Figure 2 In some embodiments, the actuator 40 may include a clamping member 41 and a moving member 42. The clamping member 41 is used to clamp the separation body 20; the moving member 42 is connected to the clamping member 41 and has multiple degrees of freedom, configured to move the clamping member 41 to a position facing the separation body 20 to clamp the separation body 20, and to flip the separation body 20 to pour out the material inside the separation body 20. In such an embodiment, the moving member 42 moves the clamping member 41 to a position where the clamping member 41 can clamp the separation body 20, and flips the clamping member 41 and the separation body 20 to pour out the material inside the separation body 20.

[0134] See Figure 1 In some embodiments, the distillation separation apparatus 100 may further include an operating platform 80, on which a material receiving member 81 for receiving material from the separation body 20 is placed; the moving member 42 of the actuator 40 is configured to pour the material from the separation body 20 into the material receiving member 81. In such embodiments, the operating platform 80 and the material receiving member 81 facilitate the operation of the actuator 40. The moving member 42 may first move the clamping member 41 to directly above the material receiving member 81, and then rotate the clamping member 41 and the separation body 20, pouring the material from the separation body 20 into the material receiving member 81.

[0135] See Figure 1 In some embodiments, multiple material receiving units 81 may be placed on the operating platform 80, respectively for receiving the separated target components and the remaining materials. The material receiving unit 81 may be an open container.

[0136] In some embodiments, a material storage container for storing materials to be separated can be placed on the operating platform 80. The moving component 42 can drive the clamping component 41 to move to the position of the material storage container so that the clamping component 41 can clamp the material storage container and drive the material storage container to move to be directly above the separation body 20, thereby driving the material storage container to move and flip so that the material to be separated can be poured into the separation body 20.

[0137] Figure 3 yes Figure 2 A partially enlarged view of the actuator 40 of the distillation separation apparatus 100 shown. See also Figure 2 and Figure 3 In some embodiments, the moving member 42 may include a first rotating member 421, a second rotating member 422, and a telescopic member 423. The first rotating member 421 drives the clamping member 41 to rotate about a horizontal axis to flip the separation body 20; the second rotating member 422 drives the clamping member 41 to rotate about a vertical axis so that the clamping member 41 can face the separation body 20 supported by the lifting mechanism 30 and the operating platform 80; the telescopic member 423 drives the clamping member 41 to extend or retract in the horizontal direction so that the clamping member 41 can be located at different positions on the operating platform 80. In such embodiments, the cooperation of the first rotating member 421, the second rotating member 422, and the telescopic member 423 can realize the pouring of material in the separation body 20 into the material receiving member 81 of the operating platform 80; and the pouring of material to be separated into the separation body 20.

[0138] In some embodiments, the actuator 40 is also configured to be able to detach and assemble the evaporator 21 and the condenser 22.

[0139] See Figure 3 In some embodiments, the moving component 42 may further include a lifting component 424 for driving the clamping component 41 to rise and fall, so that the clamping component 41 can move to a position facing the evaporating body 21 and the condensing body 22, and the clamping component 41 can clamp the evaporating body 21 and the condensing body 22 respectively. In such an embodiment, when the lifting mechanism 30 drives the separating body 20 to move below the receiving cavity 101, the lifting component 424 drives the clamping component 41 to rise and fall, and the clamping component 41 can clamp the evaporating body 21 and the condensing body 22 respectively, and pour out the materials in the evaporating body 21 and the condensing body 22 respectively.

[0140] Specifically, when the lifting mechanism 30 moves the evaporator 21 and the condenser 22 to a position below the receiving cavity 101, the clamping member 41 first clamps the evaporator 21 located above it. The moving member 42 then moves the evaporator 21 directly above the material receiving container 81, and then flips the evaporator 21 over to pour the material into the material receiving container 81. Afterward, the evaporator 21 is placed on the operating platform 80, and the moving member 42 moves the clamping member 41 to face the condenser 22, clamps the condenser 22, and pours the target component from the condenser 22 into another material receiving container 81. During assembly, the clamping member 41 first clamps the condenser 22, places the condenser 22 on the lifting mechanism 30, and then places the evaporator 21 directly above the condenser 22 to assemble the two components.

[0141] See Figure 2 and Figure 3 In some embodiments, the moving member 42 may further include a lifting drive member 425 and a lifting mating member 426. The lifting drive member 425 is configured to drive the lifting member 424 to move up and down relative to the lifting mating member 426, thereby driving the clamping member 41 to move up and down. The lifting drive member 425 may be a motor.

[0142] In some embodiments, the telescopic member 423 is disposed on the lifting member 424, and the telescopic member 423 is capable of telescopic movement relative to the lifting member 424. See also Figure 3 In some embodiments, the telescopic member 423 is capable of extending and retracting horizontally relative to the lifting member 424.

[0143] See Figure 2 In some embodiments, the lifting mechanism 30 may include a guide 31, a moving platform 32, and a drive 33. The guide 31 extends vertically below the housing 10; the moving platform 32 is movably disposed on the guide 31, and the separation body 20 is supported by the moving platform 32; the drive 33 is used to drive the moving platform 32 to move relative to the guide 31. In such an embodiment, by driving the moving platform 32 to move relative to the guide 31 by the drive 33, the separation body 20 can be moved relative to the guide 31, so that the separation body 20 enters and exits the receiving cavity 101 through the bottom opening 103 of the housing 10.

[0144] In some embodiments, the anti-tilt component 60 is connected to the mobile platform 32. In some embodiments, both the first set of elastic elements 61 and the second set of elastic elements 62 are connected to the mobile platform 32.

[0145] See Figure 1 and Figure 2In some embodiments, the actuator 40 is positioned below the housing 10 facing the mobile platform 32. In such embodiments, when the lifting mechanism 30 moves the separation body 20 away from the receiving cavity 101, the actuator 40, positioned facing the mobile platform 32, can face the separation body 20, facilitating operation of the actuator 40.

[0146] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0147] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A distillation separation device for glove box, which is advantageous for improving the condensation efficiency of steam, for separating a target component from a material to be separated, characterized in that, The device comprises a housing forming a containing cavity and a separation body arranged in the containing cavity; The separation body comprises an evaporation body and a condensation body; The condensation body forms a condensation cavity, and the evaporation body forms an evaporation cavity for containing the material to be separated, and the target component evaporated in the evaporation cavity is cooled in the condensation cavity to form a solid state; The separation body further comprises a condensation extension arranged outside the condensation body, which is used to fluidly connect the containing cavity and the condensation cavity, so that the steam not completely condensed in the condensation cavity can enter the condensation extension to be condensed.

2. The apparatus of claim 1, wherein, The condensation extension is a spiral pipe spirally extending along the outer surface of the condensation body.

3. The apparatus of claim 1, wherein, Further comprising: a cooling member arranged in the containing cavity and located radially outside the condensation body and the condensation extension, which is used to provide cold energy for the condensation body and the condensation extension.

4. The apparatus of claim 3, wherein, Further comprising: an auxiliary heating member arranged between the cooling member and the condensation extension, which is used to heat the condensation extension, so that the solid state condensed in the condensation extension is liquefied and returned to the condensation cavity.

5. The apparatus of claim 3, wherein, The condensation body is arranged below the evaporation body, and the condensation body comprises a tapered section gradually tapering from top to bottom and a circular arc section connected to the bottom of the tapered section to seal the bottom of the tapered section; The condensation extension spirally extends along the outer surface of the tapered section of the condensation body and is connected to the condensation cavity above the circular arc section.

6. The apparatus of claim 3, wherein, Further comprising: an evaporation heating member arranged in the containing cavity and located radially outside the evaporation body, which is used to provide heat for the evaporation body; a heat insulation layer arranged between the evaporation heating member and the cooling member.

7. The device according to claim 6, wherein The evaporation body further forms a plurality of steam channels fluidly connected to the condensation cavity, and the steam formed by the evaporation of the target component in the evaporation cavity enters the condensation cavity through the steam channels to be cooled to form a solid state; The plurality of steam channels are located on the same side of the evaporation cavity, and the center of the evaporation cavity deviates from the center of the evaporation body in a direction away from the plurality of steam channels.

8. The apparatus of claim 7, wherein, The housing forms a bottom opening connected to the containing cavity; The device further comprises: a cover member cooperating with the separation body to be supported by the cover member, which is used to seal the bottom opening of the containing cavity; a lifting mechanism for driving the cover member and the separation body to lift, so that the separation body enters or exits the containing cavity through the bottom opening, and the cover member seals or opens the bottom opening of the containing cavity; The device further comprises an anti-tilting assembly arranged between the lifting mechanism and the cover member, which is used to prevent the separation body from tilting as a whole when the axis deviates from the vertical direction during lifting.

9. The apparatus of claim 1, wherein, The bottom of the evaporation cavity is arc-shaped.

10. The apparatus of any one of claims 1-9, wherein, The housing is provided with a vacuum interface for vacuumizing the containing cavity; The lower end of the condensing extension is in fluid communication with the condensing chamber, and the upper end of the condensing extension forms an opening through which the vacuum interface draws a vacuum on the condensing chamber.

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