Radioactive substance dissolving system and loading structure of radioactive plate-shaped sample

Abstract

The embodiment of the invention relates to the technical field of radioactive substance transfer, in particular to a radioactive substance dissolving system and a loading structure of a radioactive plate-shaped sample. A plurality of through holes are formed in the radioactive plate-shaped samples, radioactive substances are collected in the through holes, and the loading structure is used for placing the plurality of radioactive plate-shaped samples in the dissolving device so as to dissolve the radioactive substances by using feed liquid in the dissolving device. The loading structure comprises a main body and a stop piece, the main body is arranged to form a containing cavity with a side opening, the containing cavity is used for containing a plurality of radioactive plate-shaped samples, and the radioactive plate-shaped samples are stacked in the containing cavity in the height direction of the containing cavity; the accommodating cavity is provided with a plurality of through holes, so that feed liquid in the dissolving device can flow through the accommodating cavity; the stop piece is detachably arranged at the side opening of the containing cavity and used for preventing the radioactive plate-shaped sample from being moved out of the containing cavity. According to the loading structure provided by the embodiment of the invention, a plurality of radioactive plate-shaped samples can be conveniently loaded at the same time.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of radioactive material transfer, and in particular to a radioactive material dissolution system and a loading structure for radioactive plate-shaped samples. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] When transferring the radioactive material collected on the radioactive plate-like sample, the radioactive plate-like sample can be placed in a dissolving device, and the radioactive material can be dissolved by the liquid in the dissolving device.

[0004] At present, radioactive plate-shaped samples are directly placed in the dissolution device by a hoisting structure, so that only one radioactive plate-shaped sample can be placed in each dissolution process, and the dissolution efficiency is low.

[0005] In the related art, in order to dissolve multiple radioactive plate-like samples at the same time and ensure that the liquid can fully enter the through holes of the radioactive plate-like samples to ensure that the radioactive substances collected by the radioactive plate-like samples can be completely dissolved, the loading structure is usually provided with multiple layers of accommodating chambers, and a radioactive plate-like sample is placed in each layer of accommodating chambers. The inventors of the present application found that due to the limited space of the dissolution device, the height of the loading structure is usually limited. In this way, if the height of each layer of accommodating chambers is set to be only slightly larger than the height of the radioactive plate-like samples, then each time the radioactive plate-like samples are placed, the operation is more difficult; if the height of each layer of accommodating chambers is set to be higher, then the number of accommodating chambers will be reduced, and the number of radioactive plate-like samples processed each time will be reduced. Summary of the invention

[0006] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0007] A first aspect of an embodiment of the present application provides a loading structure for a radioactive plate-like sample, wherein the radioactive plate-like sample is formed with a plurality of through holes, in which radioactive material is collected, and the loading structure is used to place the plurality of radioactive plate-like samples in a dissolving device so as to utilize the liquid in the dissolving device to dissolve the radioactive material, and the loading structure includes a main body and a stopper, the main body is configured to form a accommodating chamber with a side opening, the accommodating chamber is used to place a plurality of radioactive plate-like samples, and the plurality of radioactive plate-like samples are stacked in the accommodating chamber along the height direction of the accommodating chamber; the accommodating chamber has a plurality of liquid flow holes, so that the liquid in the dissolving device can enter the accommodating chamber and flow through the plurality of through holes of the radioactive plate-like sample; the stopper is detachably arranged at the side opening of the accommodating chamber, so as to prevent the radioactive plate-like sample from being moved out of the accommodating chamber.

[0008] The second aspect of an embodiment of the present application provides a radioactive material dissolution system, the dissolution system comprising: a dissolution device, any one of the loading structures provided in the first aspect of the present application, a sealing and lifting device, a feeding device and a device for determining the degree of solubility of the radioactive material, the dissolution device being configured to provide a dissolution space for the radioactive material; the loading structure being used to load a plurality of radioactive plate samples; the sealing and lifting device being configured to lift the loading structure into the dissolution device and to seal the dissolution device; the feeding device being configured to add a liquid for dissolving the radioactive material into the dissolution device; and the device for determining the degree of solubility of the radioactive material being configured to determine the degree of solubility of the radioactive material in the dissolution device.

[0009] The loading structure provided in the embodiment of the present application only has one accommodating cavity, and a plurality of radioactive plate-like samples are stacked in the accommodating cavity along the height direction of the accommodating cavity, which facilitates operation and reduces the difficulty of loading the radioactive plate-like samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the above and other advantages and features of the present application, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. The accompanying drawings together with the following detailed description are included in this specification and form a part of this specification. Elements with the same function and structure are represented by the same reference numerals. It should be understood that these drawings only describe typical examples of the present application and should not be regarded as limiting the scope of the present application.

[0011] Figure 1 It is a structural schematic diagram of a loading structure provided according to an embodiment of the present application.

[0012] Figure 2 It is a cross-sectional schematic diagram of a loading structure provided according to an embodiment of the present application.

[0013] Figure 3 It is a schematic diagram of an exploded view of the plug-in portion of a first rod and a second rod provided according to an embodiment of the present application.

[0014] Figure 4 It is a schematic diagram of the partial structure of the lifting and fitting part of an embodiment of the present application observed from above.

[0015] Figure 5 It is a schematic structural diagram of the lifting and fitting part of an embodiment of the present application observed from below.

[0016] Figure 6 It is a schematic structural diagram of a sealing lifting device provided according to an embodiment of the present application.

[0017] Figure 7 It is a schematic structural diagram of a cover assembly provided according to an embodiment of the present application.

[0018] Figure 8 yes Figure 6 A schematic structural diagram of the portion of the sealing lifting device that can be separated from the cover assembly as a whole is shown.

[0019] Fig. 9 It is a schematic structural diagram from another angle of a sealing lifting device provided according to an embodiment of the present application.

[0020] Fig.10 It is a schematic structural diagram of a sealing lifting device provided according to another embodiment of the present application.

[0021] Fig.11 It is a cross-sectional schematic diagram of a sealing lifting device provided according to an embodiment of the present application.

[0022] Fig.12 yes Fig.11 A partial enlargement of a cross-sectional view of a seal lifting device is provided.

[0023] Fig.13 It is a structural schematic diagram of a radioactive material dissolution degree determination device connected to a dissolution device according to an embodiment of the present application.

[0024] Fig.14 is a schematic exploded view of a radioactivity measurement assembly according to an embodiment of the present application.

[0025] Fig.15 It is a schematic diagram of an exploded view of a radioactivity measurement component according to an embodiment of the present application from another angle.

[0026] Fig.16 It is a schematic diagram of an exploded view of a radioactivity measurement component according to an embodiment of the present application from another angle.

[0027] Fig.17 It is a schematic structural diagram of an auxiliary container according to an embodiment of the present application.

[0028] Fig.18 is a schematic cross-sectional view of an auxiliary container according to an embodiment of the present application.

[0029] Fig.19 yes Fig.18 A partial enlarged schematic diagram of the rectangular box area in the middle.

[0030] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding.

[0031] Description of reference numerals:

[0032] 10. Sealing and hoisting device; 110. Cover assembly; 1100. Cover plate; 111. Cover plate through hole; 112. Recessed portion; 1150. Heating assembly; 1151. Heating element; 1152. Heat conducting element; 11521. Opening; 1153. Insulating element; 1154. Protective shell; 1160. Connecting side plate; 1170. Vertical plate; 120. Hoisting portion; 130. Driving assembly; 131. Rotating shaft; 132. Rotating driving portion; 1321. Switch; 133. Coupling; 134. Lifting driving portion; 1341. Switch; 135. Lead screw; 136. Electrical connector; 1361. Electrical connection interface; 140. Mounting assembly; 141. First mounting plate; 1411. First through hole; 1412, first bottom plate; 1413, first side plate; 1414, first top plate; 1415, first reinforcing plate; 142, sealing assembly; 1421, sleeve; 1422, sealing cover; 14221, sealing cover body; 14222, sealing cap; 1423, first sealing member; 1424, flexible sealing pad; 1425, pressing member; 1426, bolt; 1427, flange; 143, second mounting plate; 1431, slide rail; 144, sliding mounting plate; 1441, stopper; 145, third mounting member; 1451, second bottom plate; 1452, second side plate; 1453, second top plate; 1454, third side plate; 1455, second reinforcing plate; 1456, pressing member;

[0033] 20. Loading structure; 210. Main body; 211. Accommodating cavity; 212. Liquid flow hole; 213. Grid; 2131. First rod; 21311. Plug-in portion; 2132. Second rod; 21321. Plug-in fitting portion; 214. First side plate; 215. Second side plate; 2151. Side opening; 2152. Slot fitting member; 2153. Slot; 216. Side through hole group; 2161. Side through hole; 217. Lifting fitting portion; 2171. Lifting channel; 21711. First guide hole section; 21712. Second guide hole section; 21713. Third guide hole section; 2172. Connecting plate; 220. Stopper; 221. Slot; 222. Disassembly hole;

[0034] 30. dissolving device; 311. dissolving tank;

[0035] 40, radioactive measurement assembly; 410, radioactive measurement member; 411, electric wire; 431, first shielding member; 4311, first plate; 43111, half hole; 4312, first side plate; 4313, bottom plate; 43131, groove; 4314, second side plate; 432, second shielding member; 433, fastener; 434, second plate; 4341, half hole; 4342, groove; 440, through slot; 441, first thermal insulation member;

[0036] 50. Measurement auxiliary part; 51. Auxiliary container; 511. Accommodating chamber; 5111. Bottom wall; 51111. Concave portion; 512. Annular outer shell; 513. Annular inner shell; 514. Cover plate; 515. Bottom plate; 53. Liquid outlet pipe; 531. Liquid inlet; 54. Dissolved liquid inlet pipe; 55. Liquid level measuring part;

[0037] 701. Measuring pipeline; 702. Return pipeline. DETAILED DESCRIPTION

[0038] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0039] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0040] The disclosure below provides a plurality of different embodiments or examples to implement the present application. In order to simplify the disclosure of the present application, the parts and methods of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present application. In the description of the embodiments of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0041] The embodiment of the present application provides a loading structure for a radioactive plate-like sample, wherein the radioactive plate-like sample is formed with a plurality of through holes, in which radioactive substances are collected, and the loading structure is used to place a plurality of radioactive plate-like samples in a dissolving device, so as to dissolve the radioactive substances using the feed liquid in the dissolving device, and the feed liquid in which the radioactive substances are dissolved can be referred to as a dissolving liquid. The radioactive plate-like sample can be, for example, a honeycomb plate.

[0042] See also Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a loading structure according to an embodiment of the present application, Figure 2 It is a cross-sectional schematic diagram of a loading structure according to an embodiment of the present application, the loading structure 20 includes a main body 210 and a stopper 220, the main body 210 is configured to form a accommodating chamber 211 with a side opening 2151, the accommodating chamber 211 is used to place a plurality of radioactive plate-like samples, and the plurality of radioactive plate-like samples are stacked in the accommodating chamber 211 along the height direction of the accommodating chamber 211; the accommodating chamber 211 has a plurality of liquid flow holes 212, so that the feed liquid in the dissolving device can enter the accommodating chamber 211 and flow through the plurality of through holes of the radioactive plate-like samples; the stopper 220 is detachably arranged at the side opening 2151 of the accommodating chamber 211, and is used to prevent the radioactive plate-like samples from moving out of the accommodating chamber 211.

[0043] In the related art, in order to dissolve multiple radioactive plate-like samples at the same time and ensure that the liquid can fully enter the through holes of the radioactive plate-like samples to ensure that the radioactive substances collected by the radioactive plate-like samples can be completely dissolved, the loading structure is usually provided with multiple layers of accommodating chambers, and a radioactive plate-like sample is placed in each layer of accommodating chambers. The inventors of the present application found that due to the limited space of the dissolution device, the height of the loading structure is usually limited. In this way, if the height of each layer of accommodating chambers is set to be only slightly larger than the height of the radioactive plate-like samples, then each time the radioactive plate-like samples are placed, the operation is more difficult; if the height of each layer of accommodating chambers is set to be higher, then the number of accommodating chambers will be reduced, and the number of radioactive plate-like samples processed each time will be reduced.

[0044] The loading structure 20 for radioactive plate-like samples provided in the embodiment of the present application is provided with only one accommodating chamber 211, which facilitates stacking of multiple radioactive plate-like samples in the accommodating chamber 211 along the height direction of the accommodating chamber 211, thereby reducing the difficulty of loading radioactive plate-like samples. In addition, the inventor of the present application has found that multiple radioactive plate-like samples can be stacked in the accommodating chamber 211 along the height direction of the accommodating chamber 211, rather than being placed in a dissolving tank respectively, so that the radioactive substances collected by the radioactive plate-like samples can be completely dissolved. In addition, since there is no need to provide multiple layers of accommodating chambers, the partition between two adjacent layers of accommodating chambers is omitted, which greatly reduces the overall weight of the loading structure 20.

[0045] In some embodiments, the height of the accommodating cavity 211 can be determined according to the height of each radioactive plate-shaped sample and the content of the radioactive material collected therein. The inventors of the present application can determine the mass or content of the radioactive material in the loading structure 20 at the critical state through critical calculation, and can adjust the height of the accommodating cavity 211 according to the mass or content of the radioactive material obtained by calculation to adjust the number of radioactive plate-shaped samples that can be loaded in the accommodating cavity 211, so that the mass or content of the radioactive material in the loading structure 20 does not exceed half of the critical amount.

[0046] See also Figure 1 and Figure 2 In some embodiments, the main body 210 may include two layers of frames 213, two first side plates 214 relatively arranged on both sides of the two layers of frames 213, and two second side plates 215 relatively arranged on the other two sides of the two layers of frames 213, each second side plate 215 connects the two first side plates 214, the two first side plates 214, the two second side plates 215 and the two layers of frames 213 together form a accommodating cavity 211, and the frame 213 forms a plurality of liquid flow holes 212; wherein, a side opening 2151 is formed on a second side plate 215 and is located between the two layers of frames 213; the second side plate 215 forming the side opening 2151 is provided with a slot 2153, and the stopper 220 is detachably inserted into the slot 2153.

[0047] In the embodiment of the present application, the main body 210 is configured to include two layers of frames 213, which not only increases the effective flow area of ​​the liquid flow hole 212, but also helps to reduce the weight of the main body 210; by providing a side opening 2151 on the second side plate 215, it is convenient to place multiple radioactive plate-like samples into the accommodating cavity 211 in sequence; by providing a slot 2153 on the second side plate 215 and providing a stopper 220 so that it can be detachably inserted into the slot 2153, the radioactive plate-like samples can be prevented from being removed from the accommodating cavity.

[0048] In some embodiments, the slot 2153 is formed on the inner side of the second side plate 215. In some embodiments, the second side plate 215 includes a first plate body located above the side opening 2151 and a second plate body located below the side opening 2151. The slot 2153 is formed on the inner side of the first plate body to avoid interference with the radioactive plate-shaped sample. When the stopper 220 is inserted into the slot 2153, the lower end of the stopper 220 is located on the inner side of the second plate body, thereby reducing the shaking of the stopper 220.

[0049] In some embodiments, the main body 210 may further include a slot fitting 2152 disposed on the inner side of the first plate body and forming a slot 2153 together with the first plate body.

[0050] In some embodiments, a disassembly hole 222 may be formed on the stopper 220, and a clearance groove may be formed on the first plate. After the rod is inserted into the disassembly hole 222 through the clearance groove, the rod is moved upward to remove the stopper 220 from the slot 2153. The slot fitting 2152 is recessed at the position facing the disassembly hole 222 to facilitate the rod to pass through the disassembly hole 222.

[0051] See also Figure 1 In some embodiments, the connection portion between the first side plate 214 and the second side plate 215 can be rounded. The gap between the loading structure 20 and the dissolving tank of the dissolving device is small, and the loading structure 20 is not easy to enter and exit, and may get stuck on the tank wall of the dissolving tank. The inventor of the present application found that by setting the corners to be rounded, the loading structure 20 can be easily entered and exited from the dissolving tank.

[0052] In some embodiments, the grid 213 includes a plurality of first rods 2131 and a plurality of second rods 2132, the first rods 2131 and the second rods 2132 are cross-connected, the first rods 2131 connect the two first side plates 214, and the second rods 2132 connect the two second side plates 215. This arrangement is conducive to ensuring the strength of the grid 213 and facilitating the flow of the liquid.

[0053] In some embodiments, a corresponding second rod 2132 of the two-layer grid 213 is located directly below the slot 2153, and the stopper 220 forms a slot 221. When the stopper 220 is detachably inserted into the slot 2153, a corresponding second rod 2132 of the two-layer grid 213 enters the slot 221 to prevent the stopper 220 from shaking and falling off. Through the cooperation of the slot 221 and the second rod 2132, the stopper 220 can enter or leave the slot 2153 more smoothly, and each second rod 2132 can be connected to the second side plate 215, thereby ensuring the mechanical strength of the grid 213.

[0054] See also Figure 3 , Figure 3 It is a schematic diagram of the exploded connection part of the first rod 2131 and the second rod 2132 provided according to an embodiment of the present application. In some embodiments, the first rod 2131 forms a plurality of plug-in parts 21311, and the second rod 2132 forms a plurality of plug-in fitting parts 21321. The connection between the first rod 2131 and the second rod 2132 is achieved through the plug-in fitting of the plug-in parts 21311 and the plug-in fitting parts 21321.

[0055] The plug-in portion 21311 may be, for example, a first slot formed above the first rod 2131, and the plug-in mating portion 21321 may be a second slot formed below the second rod 2132, and the first rod 2131 is plugged with the second rod 2132 below the second rod 2132. In some embodiments, the length of the first rod 2131 is smaller than that of the second rod 2132, and the first rod 2131 is disposed below the second rod 2132, which is beneficial to improving the overall strength of the grid 213 structure and is not prone to breakage.

[0056] In some embodiments, the first side plate 214 and the second side plate 215 away from the stopper 220 (i.e., the second side plate 215 without the side opening 2151) are both provided with two side through hole groups 216, and each side through hole group 216 includes a plurality of side through holes 2161 distributed along the height direction. The side through holes 2161 are provided to help reduce the overall weight of the loading structure 20.

[0057] In some embodiments, the number of the side through holes 2161 in each side through hole group 216 is the same as the number of the radioactive plate-like samples, and each side through hole 2161 is located between two layers of the radioactive plate-like samples.

[0058] In order to fully exchange the liquid inside and outside the loading structure 20, the loading structure 20 can be moved up and down in the dissolution tank. By locating each side through hole 2161 between two layers of radioactive plate samples, it is helpful to improve the exchange efficiency of the liquid inside and outside the loading structure 20, so that the radioactive plate samples can be more fully dissolved.

[0059] In some embodiments, a plurality of side through holes 2161 can be directly formed on the side panel. Compared with a side panel with through holes formed by splicing a plurality of plates, a side panel with side through holes directly formed has a higher mechanical strength.

[0060] In some embodiments, the width of the side through holes 2161 can be greater than the spacing between the side through holes 2161. This arrangement can not only reduce the overall weight of the loading structure 20, but also will not have a significant impact on the mechanical strength of the side plate; it can also further improve the exchange efficiency of the slurry inside and outside the loading structure 20.

[0061] In some embodiments, the main body 210 further includes a lifting and fitting portion 217, see Figure 4 and Figure 5 The hoisting matching portion 217 is disposed above the two-layer grid 213 and is used to cooperate with the hoisting portion 120 of the external hoisting mechanism so as to hoist the main body 210 by utilizing the cooperation between the hoisting portion 120 and the hoisting matching portion 217 .

[0062] The lifting matching part 217 may include a lifting channel 2171, wherein the lifting channel 2171 includes a first guide hole section 21711, a second guide hole section 21712 and a third guide hole section 21713 in sequence along its extension direction, the inner wall of the second guide hole section 21712 is parallel to the extension direction of the lifting channel 2171, and the aperture size at the second guide hole section 21712 is the smallest, the first guide hole section 21711 extends obliquely toward the second guide hole section 21712, the third guide hole section 21713 extends obliquely toward the second guide hole section 21712, and the third guide hole section 21713 forms two recessed portions to accommodate the lifting part 120.

[0063] Specifically, the inner wall of the second guide hole segment 21712 can be four right-angled trapezoids that are connected in sequence along the circumferential direction and are symmetrically arranged at two adjacent ones, and the inner wall of the third guide hole segment 21713 can be four triangles that are connected in sequence along the circumferential direction and are symmetrically arranged at two adjacent ones. Through such an arrangement, a recessed portion extending toward the first guide hole segment 21711 can be formed between two opposite right-angled triangles of the third guide hole segment 21713.

[0064] The lifting part 120 can have a non-circular structure, such as an elliptical shape, and the lifting part 120 can enter the lifting channel 2171 from top to bottom, and then rotate the lifting part 120 so that the two ends of the lifting part 120 are stuck in the two recessed parts to achieve stable lifting. The inclined setting of the second guide hole section 21712 and the third guide hole section 21713 is conducive to guiding the lifting part 120 to enter and exit the lifting channel 2171.

[0065] Still see Figure 4 and Figure 5 In some embodiments, the lifting fitting part 217 may further include a plurality of connecting plates 2172, which are respectively used to connect the plate forming the lifting channel 2171 with the first side plate 214 and the second side plate 215. Specifically, the lifting fitting part 217 may include four connecting plates 2172, which are respectively used to connect the two first side plates 214 and the two second side plates 215. Specifically, one connecting plate 2172 may be connected to the slot fitting 2152. The upper surface of the lifting fitting part 217 may be flush with the upper end surfaces of the first side plate 214 and the second side plate 215.

[0066] The embodiments of the present application also provide a radioactive material dissolution system, which includes: a dissolution device, a loading structure 20 provided in any embodiment of the present application, a sealing hoisting device, a feeding device and a radioactive material dissolution degree determination device. The dissolution device is configured to provide a dissolution space for the radioactive material; the loading structure 20 is used to load a plurality of radioactive plate-shaped samples; the sealing hoisting device is configured to hoist the loading structure 20 into the dissolution device and seal the dissolution device; the feeding device is configured to add a liquid for dissolving the radioactive material into the dissolution device to obtain a dissolving liquid containing the radioactive material in the dissolution device; the radioactive material dissolution degree determination device is configured to determine the dissolution degree of the radioactive material in the dissolution device.

[0067] The feed liquid can be hydrofluoric acid or the like.

[0068] In some embodiments, see Figures 6 to 8 The sealing lifting device 10 includes: a cover assembly 110, a lifting part 120, a driving assembly 130 and an installation assembly 140. The cover assembly 110 is used to seal the top opening of the dissolving device; the lifting part 120 is used to lift the loading structure; the driving assembly 130 is used to drive the lifting part 120 to move, so as to connect or disconnect with the loading structure and drive the loading structure to move up and down; the installation assembly 140 is used to detachably install the driving assembly 130 as a whole on the cover assembly 110.

[0069] The sealing lifting device 10 provided in the embodiment of the present application uses the installation component 140 to detachably install the driving component 130 as a whole on the cover component 110. When the driving component 130 fails, the driving component 130 can be removed from the cover component 110 as a whole, which is convenient to operate.

[0070] In some embodiments, the mounting assembly 140 may include a first mounting plate 141 detachably connected to the cover assembly 110 .

[0071] In some embodiments, the cover assembly 110 includes a cover plate 1100 and two connecting side plates 1160 connected to the cover plate 1100, the two connecting side plates 1160 are arranged opposite to each other, and the first mounting plate 141 is detachably connected to the two connecting side plates 1160. Specifically, mounting blocks can be arranged on two opposite surfaces of the two connecting side plates 1160, mounting holes are formed on the mounting blocks, and mounting holes are correspondingly formed on the first mounting plate 141, and the first mounting plate 141 is detachably connected to the two connecting side plates 1160 by fasteners passing through the mounting holes.

[0072] The fasteners may be bolts, for example. When the mounting assembly 140 , the driving assembly 130 and the hanging portion 120 need to be disassembled from the cover assembly 110 as a whole, it is only necessary to remove the bolts to disassemble the whole assembly.

[0073] See also Fig. 9 In some embodiments, the cover assembly 110 may further include two vertical plates 1170 , each vertical plate 1170 being connected to a connecting side plate 1160 , and the vertical plates 1170 are used to cooperate with an external moving mechanism to achieve overall movement of the sealing lifting device 10 .

[0074] The connecting side plate 1160 and the vertical plate 1170 may be an integral piece to increase the overall strength. The connecting side plate 1160 may be welded to the cover plate 1100 .

[0075] In some embodiments, the driving assembly 130 may include: a rotating shaft 131 and a rotating driving part 132, wherein the rotating shaft 131 passes through the cover assembly 110 and is connected to the hanging part 120, and is used to drive the hanging part 120 to rotate, and the rotating driving part 132 is used to drive the rotating shaft 131 to rotate. The rotating driving part 132 is arranged on the first mounting plate 141. The mounting assembly 140 may also include: a sealing assembly 142, and the sealing assembly 142 is used to dynamically seal the rotating shaft 131 with the cover assembly 110. By providing the sealing assembly 142, the dissolving liquid (i.e., the liquid containing the radioactive substance) in the dissolving device can be prevented from diffusing into the glove box.

[0076] In the embodiment of the present application, the hoisting part 120 may have a non-circular structure, such as an elliptical shape, and a hoisting matching part is further provided on the loading structure, and its shape is adapted to the shape of the hoisting part 120. When the rotating driving part 132 drives the rotating shaft 131 to drive the hoisting part 120 to rotate in the hoisting matching part, the hoisting part 120 can be matched or unmatched with the hoisting matching part, so that the hoisting part 120 is connected to or disconnected from the loading structure. The hoisting part 120 can be matched with the hoisting matching part by, for example, a snap-fit ​​match.

[0077] In some embodiments, the rotation driving unit 132 may be a motor.

[0078] See also Figure 6 In some embodiments, the first mounting plate 141 is provided with a first through hole 1411 for the rotation shaft 131 to pass through, see Fig. 9 The cover plate 1100 is provided with a cover plate through hole 111 for the rotation shaft 131 to pass through. Figure 8 The sealing assembly 142 includes a sleeve 1421 and a sealing cover 1422. The sleeve 1421 is arranged on the first mounting plate 141. The rotating shaft 131 passes through the first through hole 1411, the sleeve 1421 and the cover through hole 111 in sequence and extends to the bottom of the cover 1100. The sealing cover 1422 is arranged on the sleeve 1421 for sealing the gap between the sleeve 1421 and the cover through hole 111.

[0079] The size of the hanging part 120 is smaller than the size of the cover plate through hole 111. Since the first mounting plate 141, the sleeve 1421 and the sealing cover 1422 are connected to the first mounting plate 141, when the rotating shaft 131 and the rotating driving part 132 are disassembled from the cover plate 1100, these parts can be disassembled as a whole by separating the first mounting plate 141 from the cover plate 1100, which is convenient for operation in the glove box.

[0080] In such an embodiment, after the first mounting plate 141 is disassembled from the connecting side plate 1160, the first mounting plate 141 is lifted upward, and the sealing assembly 142, the hoisting part 120, the rotating shaft 131, the rotating driving part 132 and the like can be separated from the cover plate 1100 as a whole. During assembly, when the first mounting plate 141 is placed from top to bottom on the two connecting side plates 1160, the hoisting part 120 and the rotating shaft 131 enter the cover plate through hole 111. When the first mounting plate 141 is in contact with the two connecting side plates 1160, the sealing cover 1422 is pressed against the periphery of the cover plate through hole 111 to seal the gap between the sleeve 1421 and the cover plate through hole 111. It can be seen that the embodiment of the present application makes the assembly and disassembly of the sealing hoisting device 10 very convenient by specially designing the sealing assembly.

[0081] In some embodiments, the surface of the cover plate 1100 facing the first mounting plate 141 may be provided with a recessed portion 112, and the sealing assembly 142 further includes a first sealing member 1423 disposed in the recessed portion 112. When the first mounting plate 141 and the cover plate 1100 are detachably connected, the sealing cover 1422 at least partially enters the recessed portion 112 and seals with the first sealing member 1423 to increase the sealing effect. The first sealing member 1423 may be an elastic sealing ring.

[0082] In some embodiments, see Fig.12 The sealing cover 1422 may include a sealing cover body 14221 and a sealing cover cap 14222. When the first mounting plate 141 is detachably connected to the two connecting side plates 1160, the bottom of the sealing cover cap 14222 enters the recessed portion 112 to press the first sealing member 1423, and the sealing cover body 14221 is embedded in the cover plate through hole 111. This arrangement can further enhance the sealing effect of the sealing cover 1422 and prevent the dissolved liquid from entering the top of the cover plate 1100.

[0083] In the related art, the dynamic sealing of the rotating shaft 131 is achieved by using a sealing gasket and a rubber ring disposed in the groove of the sealing gasket. In order to dissolve the radioactive material better, the driving assembly 130 can be used to drive the loading structure to move up and down in the dissolution device. The inventor of the present application found that during the rising and falling process of the rotating shaft 131, the rubber ring sometimes breaks away from the groove of the sealing gasket and enters the gap between the rotating shaft 131 and the first through hole 1411, jamming the rotating shaft 131 and preventing the rotating shaft 131 from rotating and rising.

[0084] In order to prevent the rubber ring from coming out of the groove of the sealing gasket and jamming the rotating shaft 131, in some embodiments, see Figure 8 and Fig.12 The sealing assembly 142 further includes a flexible sealing pad 1424 and a pressing member 1425. The flexible sealing pad 1424 is sleeved on the rotating shaft 131. The pressing member 1425 is used to press the flexible sealing pad 1424 and the first mounting plate 141 along the axial direction of the rotating shaft 131, so as to dynamically seal the rotating shaft 131 and the first through hole 1411. Such a sealing method can achieve dynamic sealing of the rotating shaft 131 without causing the rotating shaft 131 to get stuck. In some embodiments, the pressing member 1425 can be, for example, a stainless steel gasket. In some embodiments, the flexible sealing pad 1424 can be a rubber pad.

[0085] In some embodiments, the flexible sealing gasket 1424 may include two flexible semicircular gaskets, which are tightly fitted with the rotating shaft 131, and then the flexible sealing gasket 1424 is fixed to the upper part of the first mounting plate 141 using a clamping member 1425 to facilitate assembly.

[0086] In some embodiments, the sleeve 1421 may be connected to the first mounting plate 141 via a flange 1427 and bolts 1426. The pressing member 1425 may be connected to the first mounting plate 141 via bolts 1426.

[0087] In some embodiments, the mounting assembly 140 may include a second mounting plate 143 and a sliding mounting plate 144, the second mounting plate 143 is connected to the first mounting plate 141, the sliding mounting plate 144 is slidably connected to the second mounting plate 143, and the rotation driving unit 132 is disposed on the sliding mounting plate 144. The driving assembly 130 may also include a lifting driving unit 134 mounted on the second mounting plate 143, for driving the sliding mounting plate 144 to move upward and downward, thereby driving the lifting unit 120 to move upward and downward.

[0088] See also Figure 8In some embodiments, the mounting assembly 140 may further include a first bottom plate 1412, two first side plates 1413 disposed opposite to each other, and a first top plate 1414, wherein the first side plate 1413 is disposed between the first bottom plate 1412 and the first top plate 1414, the two first side plates 1413 are respectively fixedly connected to the sliding mounting plate 144, the rotation driving portion 132 is disposed on the first top plate 1414, and the driving assembly 130 may further include a coupling 133, through which the rotation shaft 131 is connected to the rotation driving portion 132. The coupling 133 is disposed between the first bottom plate 1412 and the first top plate 1414, and the rotation shaft 131 passes downward through the first bottom plate 1412.

[0089] Through the above arrangement, the lifting drive unit 134 can drive the rotating drive unit 132 and the hoisting unit 120 to move up and down. The second mounting plate 143 can be provided with a slide rail 1431, and the lifting drive unit 134 can drive the sliding mounting plate 144 to move up and down on the slide rail 1431 through the lead screw 135, thereby driving the loading structure to enter or leave the dissolving device.

[0090] In some embodiments, see Figure 6 A plurality of switches 1341 may be further provided on the second mounting plate 143, the switch 1341 including a light emitting portion and a light receiving portion that are relatively arranged, a stopper 1441 is further provided on the sliding mounting plate 144, the switch 1341 including a plurality of light sources and receivers, when the sliding mounting plate 144 is lifted or lowered until the stopper 1441 can be located between the light emitting portion and the light receiving portion of the switch 1341, the switch 1341 sends an electrical signal to indicate that the sliding mounting plate 144 has reached a preset height.

[0091] In some embodiments, the driving assembly 130 may further include a plurality of switches 1321 disposed on the first base plate 1412 for instructing the rotating shaft 131 to rotate to a preset angle.

[0092] In some embodiments, see Fig.11 The mounting assembly 140 may further include two symmetrically arranged first reinforcing plates 1415 , wherein the first reinforcing plates 1415 are arranged on a side of the sliding mounting plate 144 facing the second mounting plate 143 to reinforce the sliding mounting plate 144 .

[0093] In some embodiments, see Figure 6 and Fig.10 The mounting assembly 140 also includes two third mounting members 145, which are symmetrically mounted on the first mounting plate 141. The driving assembly 130 also includes multiple power connectors and two electrical connectors 136. Each electrical connector 136 is respectively arranged on a third mounting member 145 for quick-release connection with multiple power connectors and external power cords.

[0094] The electrical connector 136 may be provided with a plurality of electrical connection interfaces 1361, and the external power line is quickly connected to the power connector through the electrical connection interface 1361. Since the electrical connector 136 is quickly connected to the external power line, and the power connector of the electrical device on the cover assembly 110 can be quickly connected to the electrical connector 136, when disassembling the drive assembly 130, the mounting assembly 140, the drive assembly 130 and the electrical connector 136 can be removed as a whole, which is more convenient.

[0095] In the embodiment of the present application, the two third mounting members 145 are symmetrically arranged, so that when the driving assembly 130 rotates or moves up and down, no eccentric movement occurs, thereby not affecting the sealing effect of the cover plate 1100.

[0096] See also Fig.10 In this embodiment, each third mounting member 145 may include a second bottom plate 1451, a second side plate 1452, a second top plate 1453, a third side plate 1454, and two matching plates, wherein the second bottom plate 1451 is fixedly connected to the first mounting plate 141, the two ends of the second side plate 1452 are respectively connected to one end of the second bottom plate 1451 close to the rotation axis 131 and one end of the second top plate 1453 close to the rotation axis 131, and the third side plate 1454 is connected to one end of the second top plate 1453 away from the rotation axis 131. The two matching plates are arranged on both sides of the third side plate 1454, and together with the third side plate 1454, form a slot for the power supply connector 136 to be placed. A tightening member 1456 is also arranged on the matching plate, which is used to tighten the electrical connector 136 to fix the electrical connector 136 on the third mounting member 145.

[0097] In some embodiments, the third mounting member 145 may further include a second reinforcing plate 1455, which is respectively connected to the second bottom plate 1451, the second side plate 1452 and the second top plate 1453, and is perpendicular to the second bottom plate 1451, the second side plate 1452 and the second top plate 1453. Since the electrical connector 136 has a certain deadweight, the second reinforcing plate 1455 may be used to improve the mechanical strength of the entire third mounting member 145.

[0098] After the dissolution is completed, in order to reduce radioactive contamination, the loading structure and the sample loaded therein need to be dried in the dissolution device. In some embodiments, the dissolution device may be provided with a drying component for drying the sample and the loading structure in the dissolution device. The drying component may be dried by electric heating.

[0099] The inventors of the present application found that after drying, condensed water will remain on the inner surface of the cover plate 1100. Even by extending the drying time, it is difficult to completely dry the inside of the cover plate 1100. This will cause radioactive contamination problems. The inventors of the present application further found that this is because when the loading structure and the samples loaded therein are dried, the cover plate 1100 is located in the external environment. Since the cover plate 1100 is usually made of metal material, the material has fast heat conduction, so the temperature of the cover plate 1100 is relatively low, which results in condensed water always remaining on the inner surface of the cover plate 1100 after drying.

[0100] In order to solve the above problems, in some embodiments, the cover assembly 110 may further include a heating assembly 1150 disposed on the cover plate 1100, for heating the cover plate 1100. The embodiment of the present application sets the heating assembly 1150 to heat the cover plate 1100, and increases the temperature of the cover plate 1100, which can avoid the formation of condensed water residue due to the low temperature of the cover plate 1100 when drying the loading structure. In some embodiments, the heating assembly 1150 can be disposed on the cover plate 1100 and located between the two connecting side plates 1160. The first mounting plate 141 can be located above the heating assembly 1150.

[0101] See also Figure 7 , Fig.11 and Fig.12 In some embodiments, the heating assembly 1150 may include: a heating element 1151, a heat conducting element 1152, a heat insulating element 1153 and a protective shell 1154. The heating element 1151 is used to provide heat, the heat conducting element 1152 is thermally connected to the cover plate 1100, and is used to conduct the heat provided by the heating element 1151 to the cover plate 1100, the heat insulating element 1153 is arranged on the outside of the heat conducting element 1152, and is used to keep the heat conducting element 1152 warm, and the protective shell 1154 is arranged on the outside of the heat insulating element 1153, and is used to protect the heat insulating element 1153.

[0102] In such an embodiment, the heating component 1150 can transfer heat to the cover plate 1100 through the heat conducting member 1152, and can reduce heat loss, while the protective shell 1154 can also protect the heating component 1151, the heat conducting member 1152, and the heat insulating member 1153. In addition, the adverse effect of the heat of the heating component 1151 on the sealing component 142 can also be reduced.

[0103] The heating element 1151 may be, for example, an electric heating rod. The material of the heat conducting element 1152 may be, for example, graphite. The heat conducting element 1152 may be formed with an opening 11521, and the heating element 1151 is embedded in the opening 11521. The heating assembly 1150 may further include: a temperature measuring element, which is arranged in the heat conducting element 1152 and is used to detect the temperature of the heat conducting element 1152.

[0104] The power connectors of the heating element 1151 and the temperature measuring element can be quickly connected to the electrical connector 136. When the drive assembly 130 needs to be disassembled, the power connectors of the heating element 1151 and the temperature measuring element are disassembled from the electrical connector 136, which is easy to operate.

[0105] See also Fig.13 In some embodiments, the determination device includes: a measuring pipeline 701 and a radioactivity measurement component 40. The measuring pipeline 701 is used to receive the dissolved liquid from the dissolving device 30; the radioactivity measurement component 40 is used to measure the radioactivity of the dissolved liquid in the measuring pipeline 701. The determination device provided in the embodiment of the present application can determine the degree of dissolution of the radioactive substance by measuring the radioactivity of the dissolved liquid.

[0106] The measuring line 701 may be in fluid communication with the dissolution device 30 .

[0107] See also Figures 14 to 16 In some embodiments, the radioactivity measurement assembly 40 includes: a radioactivity measurement component 410 and a shielding shell. The radioactivity measurement component 410 is used to measure radioactivity; the shielding shell covers the measuring pipeline 701 and the radioactivity measurement component 410, so that the radioactivity measurement component 410 can only measure the radioactivity of the measuring pipeline 701. The shielding shell can shield the influence of radioactivity from the outside, so that the radioactivity measured by the radioactivity measurement component 410 is more accurate.

[0108] In some embodiments, the radioactivity measurement assembly further includes: a first heat insulating member 441 , which is sleeved on the measurement pipeline 701 to prevent heat from being transferred from the measurement pipeline 701 to the shielding shell.

[0109] The inventor of the present application found that the temperature of the solution in the measuring pipeline 701 is relatively high, and the heat is transferred to the shielding shell through the measuring pipeline 701, and then transferred to the radioactive measuring element 410 through the shielding shell, which will affect the measurement result of the radioactive measuring element 410. The embodiment of the present application can reduce the heat transferred from the measuring pipeline 701 to the shielding shell by providing the first thermal insulation element 441, thereby making the measurement result of the radioactive measuring element 410 more accurate.

[0110] See also Fig.16 In some embodiments, a through groove 440 is provided on the side of the first thermal insulation member 441 facing the radioactive measuring member 410, and the radioactive measuring assembly 40 further includes: a second thermal insulation member filled in the through groove 440 and between the first thermal insulation member 441 and the radioactive measuring member 410, wherein the gamma ray absorption rate of the second thermal insulation member is less than the gamma ray absorption rate of the first thermal insulation member 441.

[0111] The inventor of the present application found that although the first thermal insulation member 441 can reduce the influence of temperature on the measurement, the first thermal insulation member 441 will also stop the gamma rays in the measuring pipeline 701, affecting the measurement results. Based on the above reasons, the inventor of the present application set a through groove 440 in the first thermal insulation member, and filled the through groove 440 with a second thermal insulation member with a lower gamma ray absorption rate. In this way, by setting the through groove 440 on the side of the first thermal insulation member 441 facing the radioactive measuring member 410, the first thermal insulation member 441 and the second thermal insulation member jointly insulate, which can achieve a good thermal insulation effect while basically not affecting the absorption rate of gamma rays, thereby improving the measurement accuracy.

[0112] In some embodiments, the material of the first thermal insulation component may be polytetrafluoroethylene, which can not only provide thermal insulation but also facilitate the fixation of the shielding shell and the measuring pipeline 701 .

[0113] In some embodiments, the second thermal insulation member may be a silica aerogel thermal insulation felt. The measuring pipeline 701 is a stainless steel pipeline, and the shielding shell is installed on the measuring pipeline 701 .

[0114] See also Figures 14 to 16 In some embodiments, the shielding shell includes: a plurality of shielding members connected together by fasteners 433 .

[0115] Specifically, the shielding shell may include a first shielding member 431 and a second shielding member 432 that are arranged opposite to each other.

[0116] The first shielding member 431 is formed with a first through hole for allowing the electric wire 411 of the radioactivity measuring member 410 to pass through.

[0117] The first shielding member 431 may include two first side plates 4312 disposed opposite to each other, a second side plate 4314 connecting the two first side plates 4312, a bottom plate 4313 connecting the two first side plates 4312 and the second side plates 4314, and a cover plate of the two first side plates 4312 and the second side plates 4314. The cover plate is provided with a through hole for the cable of the radioactivity measuring member 410 to pass through.

[0118] The first shielding member 431 may include a body and a groove formed on the body, and the first heat insulating member 441 is disposed at the groove. The first heat insulating member 441 is provided with a through hole for arranging the measuring pipeline 701 .

[0119] The cover plate includes a first plate 4311 and a second plate 434. The first plate 4311 is connected to the two first side plates 4312 and the second side plate 4314. The second plate 434 is connected to the two first side plates 4312 by fasteners. The first plate 4311 is provided with a half hole 43111, and the second plate 434 is provided with a half hole 4341, and the two together form a through hole of the cover plate. The second plate 434 is also formed with a groove 4342, and the bottom plate 4313 is formed with a groove 43131 to match with the groove on the body of the second shielding member 432, so as to facilitate the installation of the first heat insulating member 441.

[0120] The first heat insulating member 441 is composed of two halves, one of which is connected to the body of the second shielding member 432 by a fastener; the other half is provided with a through slot 440, which is connected to the second plate 434 and the bottom plate 4313 by a fastener. The body of the second shielding member 432 is also connected to the second plate 434 and the bottom plate 4313 by a fastener 433. This arrangement facilitates the installation of the first heat insulating member 441 and the shielding shell, and facilitates the filling of the second heat insulating member into the shielding shell.

[0121] In some embodiments, see Fig.17 The determining device further includes: a measuring auxiliary component 50 , the measuring auxiliary component 50 includes an auxiliary container 51 and a liquid level measuring component 55 .

[0122] The auxiliary container 51 is in fluid communication with the measuring pipeline 701, and is used to receive the dissolved liquid in the measuring pipeline 701. The measuring auxiliary component 50 may include a dissolved liquid inlet pipe 54, and the dissolved liquid inlet pipe 54 is in fluid communication with the measuring pipeline 701.

[0123] The liquid level measuring device is used to measure the liquid level in the auxiliary container 51. The radioactivity measuring component 40 measures the radioactivity of the dissolved liquid in the measuring pipeline 701 after the liquid level in the auxiliary container 51 reaches a preset value. The auxiliary container 51 can help determine the timing of the radioactivity measuring component 40 to perform the measurement. When the liquid level measuring device measures that the liquid level in the auxiliary container 51 reaches the preset value, it means that the measuring pipeline 701 is already full of dissolved liquid, and the radioactivity measuring component 40 can be used to measure it, so as to avoid inaccurate measurement results when the measuring pipeline 701 is not yet full.

[0124] In some embodiments, the auxiliary container 51 is also provided with an air outlet for connecting to a vacuum pump to form a negative pressure in the auxiliary container 51, so that the dissolved liquid in the dissolving device 30 enters the auxiliary container through the measuring pipeline 701 under the action of the negative pressure.

[0125] In some embodiments, the auxiliary container 51 is provided with an air inlet for supplying gas into the auxiliary container 51 so that the auxiliary container 51 changes from a negative pressure environment to a normal pressure environment, so that when a negative pressure is formed in the dissolution tank 311 of the dissolution device 30, the dissolved liquid in the auxiliary container 51 returns to the dissolution device 30 via the measuring pipeline 701 under the action of the pressure difference.

[0126] In some embodiments, the determination device may further include a reflux pipeline 702, which is respectively connected to the liquid outlet pipe 53 of the auxiliary container 51 and the fluid of the dissolution device 30. Valves are respectively provided on the reflux pipeline 702 and the measuring pipeline 701. When the dissolved liquid needs to be returned to the dissolution device 30, the dissolved liquid can return to the dissolution device 30 through the reflux pipeline 702.

[0127] In some embodiments, the auxiliary container 51 is configured to form an annular accommodating chamber 511, which is beneficial for avoiding criticality problems.

[0128] See also Fig.18 and Fig.19 In some embodiments, the measuring auxiliary component 50 may further include a liquid outlet pipe 53, which is fluidically connected to the reflux line 702 and is used to allow the liquid in the containing chamber 511 to leave the containing chamber 511 and return to the dissolution device 30. The liquid inlet 531 of the liquid outlet pipe 53 is located at the bottom of the annular containing chamber 511.

[0129] In some embodiments, the dissolving device 30 is connected to an external negative pressure providing device, and the liquid in the containing chamber 511 enters the reflux pipeline 702 through the liquid outlet pipe 53 by means of negative pressure suction.

[0130] See also Fig.18 In some embodiments, the liquid outlet pipe 53 abuts against the bottom wall 5111 of the annular accommodating chamber 511, and the liquid inlet 531 is formed by a groove formed by the concave end surface of the liquid outlet pipe 53. In such an embodiment, it is beneficial to extract as much liquid as possible from the accommodating chamber 511.

[0131] In some embodiments, a plurality of grooves may be formed on the end surface of the liquid outlet pipe 53 , that is, a plurality of liquid inlets 531 may be formed, so that the liquid in the accommodating chamber 511 can be completely drawn out of the accommodating chamber 511 as much as possible.

[0132] In some embodiments, the bottom wall 5111 of the annular accommodating chamber 511 is an inclined surface extending downward from the radial outer side to the radial inner side, so that the remaining small amount of liquid in the accommodating chamber 511 flows along the inclined surface to gather at a lower place. In some embodiments, the liquid outlet pipe 53 is disposed adjacent to the radial inner wall of the annular accommodating chamber 511, so that the liquid can enter the liquid outlet pipe 53.

[0133] In some embodiments, the inclined surface may also form a recessed portion 51111, the bottom surface of the recessed portion 51111 is a plane and is connected to the radial inner edge of the bottom wall 5111. In such an embodiment, a small amount of liquid remaining in the accommodating chamber 511 can flow to the lowest point along the inclined surface and then enter the recessed portion 51111. The liquid outlet pipe 53 abuts against the bottom surface so that the liquid entering the recessed portion 51111 can be drawn out by the liquid outlet pipe 53.

[0134] In some embodiments, the auxiliary container 51 may include an annular outer shell 512, an annular inner shell 513, a bottom plate 515, and a cover plate 514. The annular inner shell 513 is disposed radially inward of the annular outer shell 512, and both ends of the annular inner shell 513 and both ends of the annular outer shell 512 are fixedly connected to the bottom plate 515 and the cover plate 514 respectively; the annular outer shell 512, the annular inner shell 513, the bottom plate 515, and the cover plate 514 together form an annular accommodating chamber 511.

[0135] In some embodiments, the liquid outlet pipe 53 , the air outlet pipe, the air inlet pipe, the solution inlet pipe 54 and the liquid level measuring member 55 are all disposed on the cover plate 514 .

[0136] In some embodiments, a portion of the liquid in the dissolution tank 311 can be allowed to enter the auxiliary container 51. When the liquid in the auxiliary container 51 reaches a preset liquid level, the supply of liquid to the auxiliary container 51 is stopped. Thereafter, the liquid entering the auxiliary container 51 is returned to the dissolution tank 311, thereby stirring the liquid in the dissolution tank 311 and accelerating the dissolution of the radioactive material.

[0137] In some embodiments, the liquid level measuring member of the determination device may be a liquid level probe, and the determination device may have two liquid level probes, and the two liquid level probes are located at different heights. The low liquid level probe is used to indicate the timing of the radioactivity measurement component 40 starting measurement when measuring the radioactivity of the dissolved liquid in the measurement pipeline 701; the high liquid level probe is used to indicate the timing of the liquid in the dissolving tank 311 stopping entering the auxiliary container 51 when stirring the liquid in the dissolving tank 311.

[0138] In some embodiments, the radioactive material dissolution system can be placed in a glove box.

[0139] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0140] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A loading structure for radioactive plate-like samples, wherein the radioactive plate-like samples are formed with a plurality of through holes, wherein radioactive substances are collected in the through holes, and the loading structure is used to place a plurality of the radioactive plate-like samples in a dissolving device so as to dissolve the radioactive substances using the liquid in the dissolving device, characterized in that: The loading structure comprises: A main body, configured to form a receiving cavity with a side opening, wherein the receiving cavity is used to place a plurality of the radioactive plate-shaped samples, and the plurality of the radioactive plate-shaped samples are stacked in the receiving cavity along a height direction of the receiving cavity; The containing chamber has a plurality of liquid flow holes, so that the feed liquid in the dissolving device can enter the containing chamber and flow through the plurality of through holes of the radioactive plate-shaped sample; A stopper is detachably arranged at the side opening of the accommodating cavity, and is used to prevent the radioactive plate-shaped sample from being moved out of the accommodating cavity.

2. The structure according to claim 1, characterized in that: The height of the containing cavity is determined according to the height of each of the radioactive plate-shaped samples and the content of radioactive substances collected therein.

3. The structure according to claim 1, characterized in that: The main body comprises two layers of grids, two first side plates oppositely arranged on both sides of the two layers of grids, and two second side plates oppositely arranged on the other two sides of the two layers of grids, each of the second side plates is connected to the two first side plates, the two first side plates, the two second side plates and the two layers of grids together form the accommodating cavity, and the grids form the multiple liquid flow holes; Wherein, the side opening is formed on one of the second side panels and is located between the two layers of grids; The second side plate forming the side opening is provided with a slot, and the stopper is detachably inserted into the slot.

4. The structure according to claim 3, characterized in that The grid includes a plurality of first rods and a plurality of second rods, the first rods and the second rods are cross-connected, the first rods connect the two first side panels, and the second rods connect the two second side panels.

5. The structure according to claim 4, characterized in that: A corresponding one of the second rods of the two-layer grid is located directly below the slot, and the stopper forms a slot. When the stopper is detachably inserted into the slot, a corresponding one of the second rods of the two-layer grid enters the slot.

6. The structure according to claim 4, characterized in that The first rod member forms a plurality of plug-in parts, and the second rod member forms a plurality of plug-in fitting parts. The first rod member and the second rod member are connected by plugging and fitting the plug-in parts with the plug-in fitting parts.

7. The structure according to claim 3, characterized in that The first side plate and the second side plate away from the stopper are both provided with two side through hole groups, and each of the through hole groups includes a plurality of side through holes distributed along the height direction.

8. The structure according to claim 7, characterized in that The number of the side through holes in each of the side through hole groups is the same as the number of the radioactive plate-like samples, and each of the side through holes is located between two layers of the radioactive plate-like samples.

9. The structure according to claim 3, characterized in that: The main body also includes a hoisting matching portion, which is arranged above the two-layer grid and is used to cooperate with the hoisting portion of the external hoisting mechanism, so as to hoist the main body by utilizing the cooperation between the hoisting portion and the hoisting matching portion.

10. A radioactive material dissolution system, characterized in that: include: A dissolution device, configured to provide a dissolution space for the radioactive material ； The loading structure according to any one of claims 1 to 9, used for loading a plurality of said radioactive plate-like samples; A sealing hoisting device, configured to hoist the loading structure into the dissolving device and seal the dissolving device; A feeding device, configured to add a feed liquid for dissolving the radioactive substance into the dissolving device to obtain a dissolved liquid containing the radioactive substance in the dissolving device; The device for determining the degree of dissolution of a radioactive substance is configured to determine the degree of dissolution of the radioactive substance in the dissolution device.

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