U3O8 powder crushing device

Abstract

The utility model discloses a U3O8 powder smashing device. The U3O8 powder smashing device comprises a feeding unit, a smashing assembly and a discharging unit. Large particles in the U3O8 powder are smashed through the smashing assembly, and the recycling rate of the U3O8 powder is increased; the upper butt joint assembly and the smashing assembly are placed in the upper sealing glove box, the lower butt joint assembly is placed in the lower sealing glove box, and the feeding barrel, the upper butt joint assembly, the smashing assembly, the lower butt joint assembly and the discharging barrel are sequentially connected in a sealed mode, so that sealing of U3O8 powder in the whole feeding, smashing and discharging process is guaranteed, and the overflow amount of the U3O8 powder is reduced; and the injury to field personnel is reduced. And meanwhile, the upper sealing glove box and the lower sealing glove box are each provided with a sealing door assembly capable of keeping a sealed environment, and the overflow amount of the U3O8 powder is further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of nuclear fuel pellet manufacturing, and more specifically, to a U3O8 powder crushing device. Background Art

[0002] U3O8 powder is an important intermediate product in the manufacturing process of nuclear fuel pellets, such as Figure 1 As shown in the figure, the intermediate products such as waste pellets and waste grinding slag generated in the manufacturing process of nuclear fuel pellets will form U3O8 powder after oxidation processing. The processed U3O8 powder will be recycled as one of the important raw materials after screening and homogenization.

[0003] At present, the recycling rate of the U3O8 powder after the above processing is low, and the U3O8 powder is scrapped due to unqualified performance. In addition, the unqualified U3O8 powder will cause serious performance defects of nuclear fuel pellets after being added as raw material. At the same time, since U3O8 powder is radioactive powder, the spillage of radioactive dust will cause personal injury.

[0004] In summary, how to improve the performance of U3O8 powder in the nuclear fuel pellet manufacturing process, increase the recovery rate of U3O8 powder, and reduce the overflow of U3O8 powder to reduce the harm caused to on-site personnel are problems that urgently need to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a U3O8 powder crushing device to improve the performance of U3O8 powder in the nuclear fuel pellet manufacturing process, increase the recovery rate of U3O8 powder, and reduce the overflow of U3O8 powder.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A U3O8 powder pulverizing device comprises: a loading unit, a pulverizing assembly, and a discharge unit; wherein the loading unit comprises an upper sealed glove box and an upper docking assembly located in the upper sealed glove box; the discharge unit comprises a lower sealed glove box and a lower docking assembly located in the lower sealed glove box; the pulverizing assembly is located in the upper sealed glove box, and the upper docking assembly, the pulverizing assembly, and the lower docking assembly are sealedly connected in sequence; the feeding port of the upper docking assembly is sealedly connected to the loading bucket, and the discharging port of the discharge assembly is sealedly connected to the lower bucket; the upper sealed glove box is provided with an upper sealed door assembly that can be opened and closed, the upper sealed door assembly is provided with an opening for the loading bucket to enter and exit, the opening is sealedly connected to the loading bucket, and the upper sealed glove box is a negative pressure glove box; the lower sealed glove box is provided with a lower sealed door assembly that can be opened and closed, and the opened lower sealed door assembly can allow the lower bucket to enter and exit the lower sealed glove box, and the lower sealed glove box is a negative pressure glove box.

[0008] In some embodiments, the upper docking assembly includes: an upper docking tube, the feed port of the upper docking tube and the discharge port of the loading barrel are sealedly connected, the upper docking tube includes a fixed section and a telescopic section, the fixed section of the upper docking tube is fixedly connected to the crushing assembly, the telescopic section of the upper docking tube can be telescoped along the axial direction of the upper docking tube, and the telescopic section of the upper docking tube is docked with the discharge port of the loading barrel; a first telescopic assembly, the first end of the first telescopic assembly is fixedly connected to the telescopic section of the upper docking tube, and the second end of the first telescopic assembly is fixedly connected to the inner surface of the top surface of the upper sealed glove box; the first telescopic assembly can be telescoped along the axial direction of the upper docking tube.

[0009] In some embodiments, the first telescopic assembly includes: a first telescopic cylinder, at least two of which are distributed around the periphery of the upper docking tube; a piston rod of the first telescopic cylinder fixedly connected to the inner surface of the top surface of the upper sealed glove box; a first connecting piece, through which the cylinder body of the first telescopic cylinder is fixedly connected to the telescopic section of the upper docking tube; and a second connecting piece, through which the cylinder bodies of two adjacent first telescopic cylinders are fixedly connected.

[0010] In some embodiments, the discharge port of the loading barrel has a first flange surface, the feed port of the upper docking pipe has a second flange surface and an upper clamp, and the upper clamp is used to fix the second flange surface and the first flange surface so that the second flange surface and the first flange surface are butt-sealed.

[0011] In some embodiments, the lower docking assembly includes: a lower docking tube, the discharge port of the lower docking tube is sealedly connected to the feed port of the lower barrel, the lower docking tube includes a fixed section and a telescopic section, the fixed section of the lower docking assembly is fixedly connected to the crushing assembly, the telescopic section of the lower docking tube can be telescoped along the axial direction of the lower docking tube, and the telescopic section of the lower docking tube is docked with the feed port of the lower barrel; a second telescopic assembly, the first end of the second telescopic assembly is fixedly connected to the fixed section of the lower docking tube, and the second end of the second telescopic assembly is fixedly connected to the telescopic section of the lower docking tube; the second telescopic assembly can be telescoped along the axial direction of the lower docking tube.

[0012] In some embodiments, the second telescopic assembly includes: a second telescopic cylinder, there are at least two second telescopic cylinders, and they are distributed on the periphery of the lower butt joint tube; a third connecting member, through which the cylinder body of the second telescopic cylinder is fixedly connected to the fixed section of the lower butt joint tube; and a fourth connecting member, through which the piston rod of the second telescopic cylinder is fixedly connected to the telescopic section of the lower butt joint tube.

[0013] In some embodiments, the feed port of the discharge barrel has a third flange surface, the discharge port of the lower docking pipe has a fourth flange surface and a lower clamp, and the lower clamp is used to fixedly connect the third flange surface and the fourth flange surface so that the third flange surface and the fourth flange surface are butt-sealed.

[0014] In some embodiments, the crushing assembly includes a crusher, the feed port of the crusher is provided with a feeding valve, the feed port of the crusher is fixedly connected to the discharge port of the upper docking assembly; the discharge port of the crusher is fixedly connected to the feed port of the lower docking assembly.

[0015] In some embodiments, the unloading unit also includes: a material transport trolley, which is used to place the unloading barrel, and the outer wall of the unloading barrel is provided with a connecting ear, and the unloading barrel is connected to the material transport trolley through the connecting ear; a platform scale, the material transport trolley can be moved to the platform scale, and the platform scale is sealed and connected to the lower sealed glove box.

[0016] In some embodiments, the unloading unit further includes: a guide rail and a positioning assembly, the guide rail is arranged on the platform scale, and the material transport trolley slides with the guide rail; the positioning assembly is arranged on the platform scale, and the positioning assembly is used to limit the position of the material transport trolley in the length direction of the guide rail; and / or, the U3O8 powder crushing device further includes an electrical control box, and the upper docking assembly, the crushing assembly, the lower docking assembly and the platform scale are all electrically connected to the electrical control box.

[0017] The U3O8 powder pulverization device provided herein comprises a loading unit, a pulverization assembly, and a discharge unit. First, it pulverizes larger U3O8 particles produced during the nuclear fuel pellet manufacturing process, thereby improving the recovery rate of the U3O8 powder. Furthermore, the mutual grinding of the particles during the pulverization process increases the surface activity of the U3O8 powder, further enhancing the overall performance of the nuclear fuel pellets formed using the U3O8 powder as a raw material.

[0018] In addition, by placing the upper docking assembly and the crushing assembly in the upper sealed glove box, placing the lower docking assembly in the lower sealed glove box, and sealing the loading barrel, upper docking assembly, crushing assembly, lower docking assembly and unloading barrel in sequence, the sealing of the U3O8 powder in the entire process of loading, crushing and unloading is ensured, the overflow of U3O8 powder is reduced, and the harm to on-site personnel is reduced.

[0019] At the same time, both the upper sealed glove box and the lower sealed glove box are equipped with sealed door assemblies that can maintain a negative pressure sealed environment, further reducing the overflow of U3O8 powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0021] Figure 1 The manufacturing flow chart of nuclear fuel pellets;

[0022] Figure 2 Schematic diagram of the overall structure of the U3O8 powder crushing device provided in the embodiment of the present application;

[0023] Figure 3 A schematic structural diagram of a feeding unit of a U3O8 powder crushing device provided in an embodiment of the present application;

[0024] Figure 4 A schematic diagram of the structure of a pulverizing assembly of a U3O8 powder pulverizing device provided in an embodiment of the present application;

[0025] Figure 5 A schematic structural diagram of a feeding unit of a U3O8 powder crushing device provided in an embodiment of the present application;

[0026] Figure 6 This is a schematic structural diagram of the lower docking assembly of the U3O8 powder crushing device provided in an embodiment of the present application.

[0027] Description of reference numerals:

[0028] 1 is the loading unit, 2 is the crushing unit, 3 is the unloading unit, 4 is the electric control box, 11 is the upper sealed glove box, 12 is the upper docking assembly, 121 is the upper docking pipe, 122 is the first telescopic assembly, 123 is the upper clamp, 1221 is the first telescopic cylinder, 1222 is the first connecting piece, 1223 is the second connecting piece, 13 is the upper sealed door assembly, 14 is the loading barrel, 141 is the loading barrel valve, 142 is the lifting ear, 21 is a crusher, 22 is a feeding valve, 31 is a lower sealed glove box, 32 is a lower docking assembly, 321 is a lower docking pipe, 322 is a second telescopic assembly, 323 is a lower clamp, 3221 is a second telescopic cylinder, 3222 is a third connecting piece, 3223 is a fourth connecting piece, 33 is a lower sealed door assembly, 34 is a discharge barrel, 341 is a discharge barrel valve, 342 is a connecting ear, 35 is a material transport trolley, and 36 is a platform scale. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0031] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0032] The "multiple" involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first" and "second" are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or order.

[0033] refer to Figure 2 The U3O8 powder pulverization device provided in the embodiments of the present application includes a loading unit 1, a pulverization assembly 2, and a discharge unit 3. The pulverization device is added before the U3O8 powder is screened to pulverize larger U3O8 particles during the nuclear fuel pellet manufacturing process, thereby improving the recovery rate of the U3O8 powder. The mutual grinding of the particles during the pulverization process increases the surface activity of the U3O8 powder, further improving the overall performance of the nuclear fuel pellets formed by adding the U3O8 powder as a raw material.

[0034] The loading unit 1 includes an upper sealed glove box 11, which is a negative pressure glove box and is equipped with an upper sealed door assembly 13 that can be opened and closed. The closed upper sealed door assembly 13 can ensure that the upper sealed glove box 11 is sealed and can provide a negative pressure environment. The upper sealed door assembly 13 is provided with an opening for the loading bucket 14 to enter and exit. The loading bucket 14 is sealedly connected to the opening of the upper sealed assembly 13, reducing the amount of U3O8 powder overflowing from the connection between the loading bucket 14 and the upper sealed assembly 13. The upper docking assembly 12 and the crushing assembly 2 are both located within the upper sealed glove box 11. The loading bucket 14, the upper docking assembly 12, and the crushing assembly 2 are sealed in sequence to ensure that the U3O8 powder is sealed during the process of entering the crushing assembly 2.

[0035] The unloading unit 3 includes a lower sealed glove box 31, which is a negative pressure glove box, and is provided with a lower sealed door assembly 33 that can be opened and closed. The opened lower sealed door assembly 33 can allow the unloading bucket 34 to enter and exit the lower sealed glove box 31, and the closed lower sealed door assembly 33 can ensure that the lower sealed glove box 31 is sealed and can provide a negative pressure environment. The lower docking assembly 32 is located in the lower sealed glove box 31, and the crushing assembly 2, the lower docking assembly 32 and the unloading bucket 34 are sealed and connected in sequence, ensuring the sealing of the crushed U3O8 powder during the unloading process.

[0036] It should be noted that the upper barrel 14, upper docking assembly 12, crushing assembly 2, lower docking assembly 32 and lower barrel 34 are distributed in sequence along the vertical direction. Under the action of gravity, the sealing effect between the components can be further enhanced, and the overflow of U3O8 powder can be further reduced.

[0037] The U3O8 powder crushing device provided in the embodiment of the present application seals and connects the loading barrel 14, the upper docking assembly 12, the crushing assembly 2, the lower docking assembly 32 and the unloading barrel 34 in sequence, thereby ensuring the sealing of the U3O8 powder throughout the entire process of loading, crushing and unloading, reducing the amount of U3O8 powder overflowing and reducing the harm caused to on-site personnel.

[0038] At the same time, both the upper sealed glove box 11 and the lower sealed glove box 31 are provided with sealed door assemblies capable of maintaining a negative pressure sealed environment, further reducing the overflow of U3O8 powder.

[0039] In actual situations, the upper sealed glove box 11 and the lower sealed glove box 31 of the U3O8 powder crushing device constitute the main frame, and lighting components are provided in the upper sealed glove box 11 and the lower sealed glove box 31 to illuminate the docking process of loading and unloading. Figure 2 The side A shown in the figure is provided with an openable and closable maintenance door (not shown in the figure). The opened maintenance door can be used to repair the crushing assembly 2, and the closed maintenance door can be sealed with the upper sealed glove box 11. The crushing assembly 2 can be maintained and repaired daily through the maintenance door, thereby extending the service life of the crushing assembly 2.

[0040] refer to Figure 3 The outer wall of the loading bucket 14 is provided with a lifting lug 142. The hoist uses the lifting lug 142 to lift the loading bucket 14 to the opening of the upper sealing door assembly 13, thereby sealing the loading bucket 14 with the opening of the upper sealing door assembly 13. The loading bucket 14 loaded with U3O8 powder is heavy. To ensure the installation of the device, the hoist maintains the lifting force on the loading bucket 14. In actual practice, the discharge port of the loading bucket 14 is provided with a loading bucket valve 141. The size of the discharge port of the loading bucket 14 is adjusted by the loading bucket valve 141 to control the discharge amount of U3O8 powder.

[0041] In order to facilitate the docking of the upper docking assembly 12 with the discharge port of the loading bucket 14, the upper docking assembly 12 needs to move up and down. The upper docking assembly 12 includes an upper docking tube 121 and a first telescopic assembly 122 arranged on the outer periphery of the upper docking tube 121. The feed port of the upper docking tube 121 can move up and down and is sealed with the discharge port of the loading bucket 14. Exemplarily, the upper docking tube 121 includes a fixed section and a telescopic section. The length of the fixed section of the upper docking tube 121 in the axial direction of the upper docking tube 121 is maintained at a set value. It can be understood that the length of the fixed section in the axial direction of the upper docking tube 121 does not change. The fixed section of the upper docking tube 121 is fixedly connected to the crushing assembly 2; the telescopic section of the upper docking tube 121 can be telescoped along the axial direction of the upper docking tube 121, and the telescopic section of the upper docking tube 121 is docked with the discharge port of the loading bucket 14. In this way, the feed port of the upper docking tube 121 is moved up and down and docked with the discharge port of the loading bucket 14 by the telescopic section of the upper docking tube 121 in its axial direction.

[0042] In order to achieve the expansion and contraction of the telescopic section of the upper docking tube 121 in its axial direction, a first telescopic assembly 122 is provided on the outer periphery of the upper docking tube 121, and the first telescopic assembly 122 can expand and contract along the axial direction of the upper docking tube 121. The first end of the first telescopic assembly 122 is fixedly connected to the telescopic section of the upper docking tube 121, and the second end of the first telescopic assembly 122 is fixedly connected to the inner surface of the top surface of the upper sealed glove box 11, ensuring the stability of the telescopic section of the upper docking tube 121 driven by the first telescopic assembly 122 during the expansion and contraction process.

[0043] The upper docking assembly 12 includes a first state and a second state. In the first state, the first telescopic assembly 122 is in an extended state, the telescopic section of the upper docking tube 121 is in a compressed state, and the feed port of the upper docking tube 121 is away from the discharge port of the loading barrel 14; in the second state, the first telescopic assembly 122 is in a compressed state, the telescopic section of the upper docking tube 121 is in an extended state, and the feed port of the upper docking tube 121 is docked with the discharge port of the loading barrel 14.

[0044] Exemplary, reference Figure 2 and Figure 3 The first telescopic assembly 122 includes four first telescopic cylinders 1221 evenly distributed around the outer periphery of the upper docking tube 121. The piston rods of the first telescopic cylinders 1221 are fixedly connected to the inner surface of the top surface of the upper sealed glove box 11, ensuring stability during telescopic operation. The cylinder bodies of the first telescopic cylinders 1221 are fixedly connected to the telescopic section of the upper docking tube 121 via first connectors 1222. The cylinder bodies of two adjacent first telescopic cylinders 1221 are fixedly connected via second connectors 1223, further ensuring stability during telescopic operation.

[0045] In some other embodiments, there may be two, three or more first telescopic cylinders 1221, which is not limited in the embodiment of the present application.

[0046] refer to Figure 3 To ensure a sealed connection between the loading bucket 14 and the upper docking tube 121, the discharge port of the loading bucket 14 has a first flange surface (not shown), and the feed port of the upper docking tube 121 has a second flange surface (not shown) and an upper clamp 123. The upper clamp 123 is used to securely connect the second flange surface to the first flange surface, ensuring a seal between the second flange surface and the first flange surface, thereby ensuring a seal between the discharge port of the loading bucket 14 and the feed port of the upper docking tube 121. In practice, the upper sealed glove box 11 is equipped with a first sealing glove. A worker can insert their hand into the first sealing glove to operate the upper clamp 123, achieving a seal between the second and first flange surfaces.

[0047] refer to Figure 4 The crushing component 2 includes a crusher 21, and the feed port of the crusher 21 is provided with a feeding valve 22. The feed port of the crusher 21 is fixedly connected to the discharge port of the upper docking component 12, and the discharge port of the crusher 21 is fixedly connected to the feed port of the lower docking component 32, ensuring that the crusher 21 is sealed during the feeding and discharging process.

[0048] It should be noted that the crusher 21 is a toothed disc crusher, which realizes the grinding and crushing of U3O8 particles through the high-speed relative movement between the movable toothed disc and the fixed toothed disc. The crushing gap between the movable toothed disc and the fixed toothed disc is set to be smaller than the sieve size of the U3O8 powder, which improves the sieve pass rate of the U3O8 powder and thus improves the recycling rate of the U3O8 powder.

[0049] Exemplary, reference Figure 4 The feeding valve 22 is a star-shaped feeding valve, which can realize automatic and uniform feeding of the crusher 21 and ensure the smoothness of the feeding process.

[0050] refer to Figure 5 and Figure 6To facilitate the entry and exit of the lower sealed glove box 31 into and out of the lower material bucket 34, the lower docking assembly 32 needs to move up and down. The lower docking assembly 32 includes a lower docking tube 321 and a second telescopic assembly 322 disposed on the outer periphery of the lower docking tube 321. The discharge port of the lower docking tube 321 can move up and down and is sealedly connected to the feed port of the lower material bucket 34. Exemplarily, the lower docking tube 321 includes a fixed section and a telescopic section. The length of the fixed section of the lower docking tube 321 in the axial direction of the lower docking tube 321 is maintained at a set value, which can be understood as the length of the fixed section in the axial direction of the lower docking tube 321 does not change. The fixed section of the lower docking tube 321 is fixedly connected to the crushing assembly 2. The telescopic section of the lower docking tube 321 can be extended and retracted along the axial direction of the lower docking tube 321 and docks with the feed port of the lower material bucket 34. In this way, the telescopic section of the lower docking tube 321 can be extended and retracted in the axial direction of the lower docking tube 321 to enable the discharge port of the lower docking tube 321 to move up and down and dock with the feed port of the lower material bucket 34.

[0051] In order to realize the expansion and contraction of the telescopic section of the lower docking tube 321 in its axial direction, a second telescopic component 322 is provided on the outer periphery of the lower docking tube 321, and the second telescopic component 322 can expand and contract along the axial direction of the lower docking tube 321. The first end of the second telescopic component 322 is fixedly connected to the fixed section of the lower docking tube 321, and the second end of the second telescopic component 322 is fixedly connected to the telescopic section of the lower docking tube 321, thereby ensuring the stability of the second telescopic component 322 in the process of expanding and contracting the telescopic section of the lower docking tube 321.

[0052] The lower docking assembly 32 includes a first state and a second state. In the first state, the second telescopic assembly 322 is in a compressed state, the telescopic section of the lower docking tube 321 is in a compressed state, and the discharge port of the lower docking tube 321 is away from the feed port of the lower barrel 34; in the second state, the second telescopic assembly 322 is in an extended state, the telescopic section of the lower docking tube 321 is in an extended state, and the discharge port of the lower docking tube 321 is docked with the feed port of the lower barrel 34.

[0053] Exemplary, reference Figure 6 The second telescopic assembly 322 includes a second telescopic cylinder 3221. There are two second telescopic cylinders 3221, which are distributed on both sides of the lower docking tube 321. The cylinder body of the second telescopic cylinder 3221 is fixedly connected to the fixed section of the lower docking tube 321 through a third connecting piece 3222. The piston rod of the second telescopic cylinder 3221 is fixedly connected to the telescopic section of the lower docking tube 321 through a fourth connecting piece 3223. The telescopic section of the lower docking tube 321 is driven up and down by the telescopic movement of the piston rod of the second telescopic cylinder 3221, and the stability of the second telescopic cylinder 3221 during the telescopic process is ensured.

[0054] In some other embodiments, the number of the second telescopic cylinders 3221 may also be three, four, or more, which is not limited in the embodiment of the present application.

[0055] refer to Figure 6 To ensure a sealed connection between the lower barrel 34 and the lower butt joint 321, the inlet of the lower barrel 34 has a third flange surface (not shown), and the outlet of the lower butt joint 321 has a fourth flange surface (not shown) and a lower clamp 323. The lower clamp 323 is used to securely connect the fourth and third flange surfaces, ensuring a seal between the fourth and third flange surfaces. In practice, the lower sealed glove box 31 is equipped with a second sealing glove. A worker can insert their hand into the second sealing glove to operate the lower clamp 323, achieving a seal between the fourth and third flange surfaces.

[0056] In actual situations, reference Figure 5 To facilitate the convenient entry and exit of the lower sealed glove box 31 for the unloading bucket 34, the unloading unit 3 also includes a transport trolley 35 for placing the unloading bucket 34. The outer wall of the unloading bucket 34 is provided with a connecting ear 342. The unloading bucket 34 can be detachably fixedly connected to the transport trolley 35 via the connecting ear 342, ensuring that the unloading bucket 34 can be stably placed on the transport trolley 35. The transport trolley 35 can be used to carry the unloading bucket 34 in and out of the lower sealed glove box 31, saving time and effort. The discharge port of the unloading bucket 34 is provided with a unloading bucket valve 341. The discharge port of the unloading bucket 34 is adjusted by the unloading bucket valve 341 to control the discharge amount of U3O8 powder.

[0057] The unloading unit 3 also includes a platform scale 36, which can weigh and package the U3O8 powder in the unloading bucket 34. The platform scale 36 is a low-profile platform scale placed on the ground and is sealed to the bottom surface of the lower sealed glove box 31. The platform scale 36 is provided with guide rails, and the material transport trolley 35 slides along the guide rails and moves onto the platform scale 36. The platform scale 36 is also provided with a positioning assembly that can limit the position of the material transport trolley 35 along the length of the guide rails, providing a movement guide for the material transport trolley 35, allowing the unloading bucket 34 to be placed in the correct position more quickly, thereby facilitating the connection between the unloading bucket 34 and the lower docking pipe 321.

[0058] refer to Figure 1An electrically controlled door is installed on one side of the upper sealed glove box 11, housing an electrical control box 4. The first telescopic cylinder 1221 in the upper docking assembly 12, along with the pulverizer 21 and feed valve 22, and the second telescopic cylinder 3221 and platform scale 36 in the lower docking assembly 32 are all electrically connected to the electrical control box 4. When the weight of the U₃O₃ powder in the lower feed bucket 34 reaches a set value, the electrical control box 4 controls the feed valve 22 to close, halting feed and grinding in the pulverizer 21. The pulverizer 21 then stops grinding after the lower feed bucket 34 is replaced with a new one, and the pulverizer 21 resumes grinding.

[0059] When the U3O8 powder crushing device is working, the hoist lifts the loading bucket 14 to the opening of the upper sealing door assembly 13 and seals the loading bucket 14 with the opening. Then the electrical control box 4 controls the compression of the first telescopic cylinder 1221, driving the second flange surface of the feed port of the upper docking tube 121 to dock with the first flange surface of the discharge port of the loading bucket 14. The staff puts their hand into the first sealing glove to operate the upper clamp 123, so that the first flange surface and the second flange surface are docked and sealed, thereby realizing a sealed connection between the loading bucket 14 and the upper docking tube 121. Next, the lower sealed door assembly 33 is opened, and the transport cart 35 carrying the lower material bucket 34 is pushed along the guide rails on the platform scale 36 into the lower sealed glove box 31. The lower material bucket 34 is then positioned using the positioning assembly on the platform scale 36. The electrical control box 4 then controls the extension of the second telescopic cylinder 3221, driving the third flange surface of the outlet of the lower docking tube 321 to align with the fourth flange surface of the inlet of the lower material bucket 34. The worker then inserts their hand into the second sealing glove box to operate the lower clamp 323, aligning the third and fourth flange surfaces, thus achieving a sealed connection between the lower docking tube 321 and the lower material bucket 34. The upper material bucket valve 141 is then opened, and the pulverizer 21 and feed valve 22 are activated through the electrical control box 4 to begin pulverizing the U3O8 particles. When the weight of the U3O8 powder in the lower feeding barrel 34 reaches the set value, the electric control box 4 controls the feeding valve 22 to close, stops the crusher 21 from feeding, and controls the crusher 21 to stop crushing. Then, a new lower feeding barrel 34 is replaced and the crusher 21 is started again for crushing.

[0060] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A U3O8 powder crushing device, characterized in that: include: Loading unit (1), crushing assembly (2), unloading unit (3); Wherein, the loading unit (1) comprises an upper sealed glove box (11) and an upper docking assembly (12) located in the upper sealed glove box (11); The unloading unit (3) comprises a lower sealed glove box (31) and a lower docking assembly (32) located in the lower sealed glove box (31); The crushing assembly (2) is located in the upper sealed glove box (11), and the upper docking assembly (12), the crushing assembly (2) and the lower docking assembly (32) are sealed and connected in sequence; The feed port of the upper docking assembly (12) is sealed to the upper barrel (14), and the discharge port of the lower docking assembly (32) is sealed to the lower barrel (34); The upper sealed glove box (11) is provided with an upper sealed door assembly (13) that can be opened and closed, and the upper sealed door assembly (13) is provided with an opening for the loading barrel (14) to enter and exit, the opening and the loading barrel (14) are sealedly connected, and the upper sealed glove box (11) is a negative pressure glove box; The lower sealed glove box (31) is provided with a lower sealed door assembly (33) that can be opened and closed. The opened lower sealed door assembly (33) can allow the lower material barrel (34) to enter and exit the lower sealed glove box (31), and the lower sealed glove box (31) is a negative pressure glove box.

2. The U3O8 powder crushing device according to claim 1, characterized in that: The upper docking assembly (12) comprises: An upper butt joint tube (121), wherein the feed port of the upper butt joint tube (121) is sealedly connected to the discharge port of the loading barrel (14), and the upper butt joint tube (121) comprises a fixed section and a telescopic section, wherein the fixed section of the upper butt joint tube (121) is fixedly connected to the crushing assembly (2), and the telescopic section of the upper butt joint tube (121) can be telescoped along the axial direction of the upper butt joint tube (121), and the telescopic section of the upper butt joint tube (121) is butt jointed with the discharge port of the loading barrel (14); A first telescopic assembly (122), wherein a first end of the first telescopic assembly (122) is fixedly connected to the telescopic section of the upper butt joint tube (121), and a second end of the first telescopic assembly (122) is fixedly connected to the inner surface of the top surface of the upper sealed glove box (11); the first telescopic assembly (122) is capable of telescoping along the axial direction of the upper butt joint tube (121).

3. The U3O8 powder crushing device according to claim 2, characterized in that: The first telescopic assembly (122) comprises: a first telescopic cylinder (1221), wherein there are at least two first telescopic cylinders (1221) distributed on the outer periphery of the upper butt-jointing tube (121); piston rods of the first telescopic cylinders (1221) are fixedly connected to the inner surface of the top surface of the upper sealed glove box (11); a first connecting member (1222), wherein the cylinder body of the first telescopic cylinder (1221) is fixedly connected to the telescopic section of the upper butt joint (121) via the first connecting member (1222); A second connecting member (1223), wherein the cylinder bodies of two adjacent first telescopic cylinders (1221) are fixedly connected via the second connecting member (1223).

4. The U3O8 powder crushing device according to claim 2, characterized in that: The discharge port of the loading barrel (14) has a first flange surface, and the feed port of the upper butt joint (121) has a second flange surface and an upper clamp (123), and the upper clamp (123) is used to fix the second flange surface and the first flange surface so that the second flange surface and the first flange surface are butted and sealed.

5. The U3O8 powder crushing device according to claim 1, characterized in that: The lower docking assembly (32) comprises: A lower butt joint tube (321), wherein the discharge port of the lower butt joint tube (321) is sealedly connected to the feed port of the discharge barrel (34), the lower butt joint tube (321) comprises a fixed section and a telescopic section, the fixed section of the lower butt joint tube (321) is fixedly connected to the crushing assembly (2), the telescopic section of the lower butt joint tube (321) can be telescoped along the axial direction of the lower butt joint tube (321), and the telescopic section of the lower butt joint tube (321) is butted against the feed port of the discharge barrel (34); A second telescopic assembly (322), wherein a first end of the second telescopic assembly (322) is fixedly connected to the fixed section of the lower butt joint tube (321), and a second end of the second telescopic assembly (322) is fixedly connected to the telescopic section of the lower butt joint tube (321); the second telescopic assembly (322) is capable of telescoping along the axial direction of the lower butt joint tube (321).

6. The U3O8 powder crushing device according to claim 5, characterized in that: The second telescopic assembly (322) includes: Second telescopic cylinders (3221), there are at least two second telescopic cylinders (3221), and they are distributed on the periphery of the lower butt joint tube (321); a third connecting member (3222), wherein the cylinder body of the second telescopic cylinder (3221) is fixedly connected to the fixed section of the lower butt joint pipe (321) via the third connecting member (3222); A fourth connecting member (3223), wherein the piston rod of the second telescopic cylinder (3221) is fixedly connected to the telescopic section of the lower butt joint (321) via the fourth connecting member (3223).

7. The U3O8 powder crushing device according to claim 5, characterized in that: The feed port of the discharge barrel (34) has a third flange surface, and the discharge port of the lower butt-jointed pipe (321) has a fourth flange surface and a lower clamp (323), and the lower clamp (323) is used to fixedly connect the third flange surface and the fourth flange surface so that the third flange surface and the fourth flange surface are butted and sealed.

8. The U3O8 powder crushing device according to claim 1, characterized in that: The pulverizing assembly (2) comprises a pulverizer (21), a feed port of the pulverizer (21) being provided with a feed valve (22), the feed port of the pulverizer (21) being fixedly connected to the discharge port of the upper docking assembly (12); and the discharge port of the pulverizer (21) being fixedly connected to the feed port of the lower docking assembly (32).

9. The U3O8 powder pulverizing device according to any one of claims 1 to 8, characterized in that: The blanking unit (3) further comprises: A material transport trolley (35), the material transport trolley (35) is used to place the material discharge barrel (34), the outer wall of the material discharge barrel (34) is provided with a connecting ear (342), and the material discharge barrel (34) is connected to the material transport trolley (35) through the connecting ear (342); A platform scale (36), the material transport trolley (35) can be moved onto the platform scale (36), and the platform scale (36) is sealed and connected to the lower sealed glove box (31).

10. The U3O8 powder pulverizing device according to claim 9, characterized in that: The unloading unit (3) further includes: a guide rail and a positioning assembly, wherein the guide rail is arranged on the platform scale (36), and the material transport trolley (35) is in sliding cooperation with the guide rail; the positioning assembly is arranged on the platform scale (36), and the positioning assembly is used to limit the position of the material transport trolley (35) in the length direction of the guide rail; And / or, the U3O8 powder pulverizing device further comprises an electric control box (4), and the upper docking assembly (12), the pulverizing assembly (2), the lower docking assembly (32) and the platform scale (36) are all electrically connected to the electric control box (4).

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