Crucible protection assembly and metal purification device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- URUMQI ZHONGHANG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-26
AI Technical Summary
During crucible transfer, the exposed parts of the crucible are prone to damage, resulting in a reduced service life.
A crucible protection assembly is designed, including a first protective element and a second protective element. The first protective element consists of an end wall and a surrounding wall, which are used to support the bottom wall and side wall of the crucible. The second protective element consists of a heat-resistant element that surrounds and abuts the side wall. The surrounding wall and the heat-resistant element together cover the side wall in a direction parallel to the bottom wall, providing all-round protection.
This improves the reliability of the crucible during transport, reduces crucible damage, and extends its service life.
Smart Images
Figure CN224415697U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of metal smelting equipment technology, and in particular to a crucible protection component and a metal purification device. Background Technology
[0002] Segregation is an industrially applied process for metal purification. It has the advantages of low energy consumption, relatively simple equipment and processes, and high yield. It is suitable for mass production of high-purity metals and is the main research and development direction of high-purity metal purification technology.
[0003] Crucibles, due to their excellent thermal conductivity and thermal stability, are commonly used as purification containers in segregation processes. When crucibles need to be transported, a high-temperature resistant protective sleeve is typically fitted over them. However, to improve the safety of the crucible during transport, the portion of the crucible near the opening is usually left uncovered. This makes the exposed portion of the crucible more susceptible to damage, reducing its lifespan. Utility Model Content
[0004] Therefore, it is necessary to provide a crucible protection component and a metal purification device to address the problem of inadequate protection of the crucible.
[0005] This application provides a crucible protection assembly for use on the outside of a crucible to protect the bottom and side walls of the crucible. The crucible protection assembly includes a first protective member and a second protective member. The first protective member includes an end wall and a surrounding wall. The surrounding wall is disposed around the periphery of the end wall and is used to support the bottom wall. The surrounding wall is spaced apart from the side wall. The second protective member includes a heat-resistant member that surrounds and abuts against the side wall. The surrounding wall and the heat-resistant member are configured such that, in a direction parallel to the bottom wall, the projection of any position of the side wall falls on the surrounding wall and / or the heat-resistant member.
[0006] In some embodiments, the heat-resistant component is disposed at one end of the sidewall away from the bottom wall; in a direction parallel to the bottom wall, the surrounding wall and the heat-resistant component are offset.
[0007] In some embodiments, the second protective member further includes at least two assembly walls, each assembly wall being arranged circumferentially around the crucible and detachably connected to adjacent assembly walls; each assembly wall is configured to clamp the heat-resistant component with a mating sidewall.
[0008] In some embodiments, the assembly wall includes a body portion and mounting portions disposed at both ends of the body portion along the circumference of the crucible. The mounting portions of adjacent assembly walls cooperate with each other and are connected by connectors.
[0009] In some embodiments, the connector is a screw and a nut.
[0010] In some embodiments, the assembled wall includes a body portion and an isolation portion disposed inside the body portion, the isolation portion being used to cooperate with a side wall or a heat-resistant component.
[0011] In some embodiments, the surface of the isolation portion that mates with the sidewall or heat-resistant component is an inclined surface, and the distance between the inclined surface and the body portion gradually increases along the direction from the sidewall to the bottom wall.
[0012] In some embodiments, the number of assembly walls is four.
[0013] In some embodiments, the heat-resistant component is a ceramic fiber rope.
[0014] This application also provides a metal purification apparatus, which includes a crucible protection component as provided in any of the foregoing embodiments.
[0015] The crucible protection assembly and metal purification apparatus provided in the embodiments of this application have at least the following beneficial effects:
[0016] By providing a second protective element, including a heat-resistant element that surrounds and abuts the side wall, and by configuring the surrounding wall and the heat-resistant element such that the projection of any position of the side wall falls on the surrounding wall and / or the heat-resistant element in a direction parallel to the bottom wall, the surrounding wall and the heat-resistant element can jointly protect the crucible, thereby improving the reliability of the crucible protection assembly during transportation, reducing damage to the crucible during transportation, and extending the service life of the crucible.
[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 An exploded three-dimensional structural diagram of the crucible protection assembly and the crucible provided in an embodiment of this application;
[0020] Figure 2 for Figure 1 Enlarged view of part A of the crucible protection assembly shown;
[0021] Figure 3This is a three-dimensional structural diagram of the assembled walls in a crucible protection assembly provided in an embodiment of this application.
[0022] Figure 4 for Figure 3 Enlarged view of part B of the crucible protection assembly shown.
[0023] Explanation of reference numerals in the attached drawings: 100, crucible protection assembly; 10, first protective component; 11, end wall; 12, surrounding wall; 20, second protective component; 21, heat-resistant component; 22, assembly wall; 221, main body; 222, mounting part; 2221, through hole; 223, isolation part;
[0024] 200. Crucible; 201. Bottom wall; 202. Side wall. Detailed Implementation
[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0027] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0031] Please refer to the following: Figures 1 to 4This application provides a crucible protection assembly 100, which is disposed outside a crucible 200 to protect the bottom wall 201 and side wall 202 of the crucible 200. The crucible protection assembly 100 includes a first protective member 10 and a second protective member 20. The first protective member 10 includes an end wall 11 and a surrounding wall 12. The surrounding wall 12 is disposed around the periphery of the end wall 11. The end wall 11 is used to support the bottom wall 201. The surrounding wall 12 is spaced apart from the side wall 202. The second protective member 20 includes a heat-resistant member 21, which is used to surround and abut against the side wall 202. The surrounding wall 12 and the heat-resistant member 21 are configured such that, in a direction parallel to the bottom wall 201, the projection of any position of the side wall 202 falls on the surrounding wall 12 and / or the heat-resistant member 21.
[0032] The crucible protection component 100 is used to be placed outside the crucible when producing high-purity metals by segregation, so that the liquid metal in the crucible can be stably stored and transferred. It is usually used in conjunction with a special crucible clamp and lifting device.
[0033] The crucible protection component 100 is disposed outside the crucible 200, meaning that the crucible 200 is a semi-enclosed structure with one end open, and the middle part of the crucible 200 has a receiving space for containing metal. The outside of the crucible 200 is the surface of the crucible 200 that is away from the receiving space.
[0034] The crucible protection component 100 is used to protect the bottom wall 201 and side wall 202 of the crucible 200. That is, the crucible protection component 100 is set on the side of the bottom wall 201 of the crucible 200 away from the receiving space and the side wall 202 away from the receiving space, so as to support and protect the crucible 200.
[0035] In these embodiments of the present application, the crucible 200, as the core equipment for controlling metal segregation and improving the purity of metal segregation, can be a graphite crucible, an alumina crucible, or a boron nitride crucible with good thermal conductivity, corrosion resistance, and high-temperature stability.
[0036] This application describes the case only using crucible 200 as a graphite crucible, and its application in the production of high-purity aluminum.
[0037] The first protective element 10 includes an end wall 11 and a surrounding wall 12. The surrounding wall 12 is arranged around the periphery of the end wall 11, which means that the first protective element 10 is also a semi-enclosed structure with a hollow interior and an open end.
[0038] When the first protective member 10 provides protection for the crucible 200, the crucible 200 can be inserted from the open end of the first protective member 10, so that the bottom wall 201 of the crucible 200 is supported by the end wall 11, and the side wall 202 of the crucible 200 is spaced apart from the surrounding wall 12. In this way, the end wall 11 can provide support and protection for the bottom wall 201, and the surrounding wall 12 can provide protection for at least a portion of the side wall 202.
[0039] In these embodiments of this application, the surrounding wall 12 is provided to be spaced apart from the side wall 202. This means that during the process of placing the crucible 200 into the first protective member 10, the crucible 200 needs to be placed in the middle of the bottom wall 201 to reduce the contact between the side wall 202 and the surrounding wall 12, reduce the risk of damage to the anti-oxidation coating on the outside of the side wall 202 due to impact, and thus improve the service life of the crucible 200.
[0040] It should be noted that when the crucible 200 is placed into the first protective member 10, it is usually necessary to set a portion of the side wall 202 at the opening end of the crucible 200 and the first protective member 10 to be offset from the surrounding wall 12 in a direction parallel to the bottom wall 201. That is, in a direction perpendicular to the bottom wall 201, at least a portion of the side wall 202 away from the bottom wall 201 is exposed outside the semi-enclosed structure formed by the first protective member 10, so as to facilitate a more stable connection between the clamp and the first protective member 10 when the crucible 200 is transferred.
[0041] Typically, in the direction perpendicular to the bottom wall 201, the portion of the side wall 202 exposed outside the semi-enclosed structure formed by the first protective member 10 is 100mm to 150mm in size. As a result, because the first protective member 10, under the action of the clamping and lifting device, needs to move the crucible 200 back and forth between the high-temperature heating zone and the factory environment, the portion of the crucible 200 exposed to the first protective member 10 is repeatedly subjected to significant temperature changes, which increases the oxidation rate of the crucible 200, thus reducing its overall service life.
[0042] Based on this, in these embodiments of the present application, the crucible protection component 100 further includes a second protective element 20, the function of which is to cooperate with the first protective element 10 to achieve all-round protection of the crucible 200.
[0043] The second protective member 20 includes a heat-resistant member 21, which surrounds and abuts against the side wall 202. The surrounding wall 12 and the heat-resistant member 21 are configured such that, in a direction parallel to the bottom wall 201, the projection of any position of the side wall 202 falls on the surrounding wall 12 and / or the heat-resistant member 21. Thus, when the crucible protection assembly 100 protects the crucible 200, the end wall 11 in the first protective member 10 protects and supports the bottom wall 201 of the crucible 200, while the surrounding wall 12 in the first protective member 10 and the heat-resistant member 21 in the second protective member 20 jointly protect the side wall 202 of the crucible 200, reducing the impact of temperature changes on the crucible 200 during transport, slowing down the oxidation rate of the crucible 200, and extending the service life of the crucible 200.
[0044] In the direction parallel to the bottom wall 201, the projection of any position of the side wall 202 falls on the surrounding wall 12 and / or the heat-resistant component 21. That is, in the direction parallel to the bottom wall 201, the surrounding wall 12 and the heat-resistant component 21 may have overlapping parts, and the surrounding wall 12 and the heat-resistant component 21 together cover the side wall 202 to jointly provide protection for the side wall 202.
[0045] The heat-resistant component 21 is used to surround and abut against the side wall 202, meaning that the structure of the heat-resistant component 21 matches the side wall 202, allowing the heat-resistant component 21 to abut against the outer side of the side wall 202. The heat-resistant component 21 is arranged around the side wall 202 to provide all-around protection for the side wall 202 along the circumference of the crucible 200.
[0046] In these embodiments of the present application, the heat-resistant component 21 can be selected as a fire-resistant fiber material such as asbestos fiber or glass fiber, so as to obtain good temperature resistance while having a certain degree of flexibility, thereby facilitating the use of the surrounding wall 12 to surround and cover the part of the side wall 202 not covered by the surrounding wall 12.
[0047] According to the crucible protection assembly 100 provided in the embodiments of this application, by providing a second protective member 20 including a heat-resistant member 21 that surrounds and abuts against the side wall 202, and the surrounding wall 122 and the heat-resistant member are configured such that, in a direction parallel to the bottom wall 201, the projection of any position of the side wall 202 falls on the surrounding wall 12 and / or the heat-resistant member 21, so that the surrounding wall 12 and the heat-resistant member 21 can jointly protect the crucible 200, improve the reliability of the crucible protection assembly 100 during the transfer process, reduce the damage to the crucible 200 during the transfer, and extend the service life of the crucible 200.
[0048] In some embodiments, the heat-resistant member 21 is disposed at one end of the side wall 202 away from the bottom wall 201; in a direction parallel to the bottom wall 201, the surrounding wall 12 is offset from the heat-resistant member 21.
[0049] In these embodiments of the present application, the sidewall 202 can be regarded as two parts, namely a part near the bottom wall 201 and a part away from the bottom wall 201. The heat-resistant member 21 is used to be disposed at the end of the sidewall 202 away from the bottom wall 201, and the surrounding wall 12 and the heat-resistant member 21 are staggered. This means that in the direction perpendicular to the bottom wall 201, the surrounding wall 12 provides protection for the part of the sidewall 202 near the bottom wall 201, and the heat-resistant member 21 provides protection for the part of the sidewall 202 away from the bottom wall 201.
[0050] This exposes at least part of the sidewall 202 outside the hollow protective structure of the first protective element 10, which is beneficial for the placement of the clamps and lifting devices and improves the stability of the crucible 200 during transportation.
[0051] In some embodiments, the second protective member 20 further includes at least two assembly walls 22, each assembly wall 22 being arranged around the circumference of the crucible 200 and being detachably connected to adjacent assembly walls 22; each assembly wall 22 is configured to clamp the heat-resistant member 21 in conjunction with the side wall 202.
[0052] Each assembly wall 22 is arranged around the circumference of the crucible 200, and adjacent assembly walls 22 are detachably connected. This means that each assembly wall 22 is arranged around the circumference of the crucible 200 by means of assembly, so as to further improve the protective effect of the second protective member 20 on the crucible 200.
[0053] The adjacent assembly walls 22 are detachably connected. In some embodiments, the adjacent assembly walls 22 can be detachably connected by a snap-fit structure. Alternatively, the adjacent assembly walls 22 can be detachably connected by screws, bolts, studs, or other connectors to make the connection strength between the adjacent assembly walls 22 adjustable. The size of the ring structure formed by each assembly wall 22 can even be controlled by controlling the tightness of the connectors.
[0054] Each assembly wall 22 is configured to clamp the heat-resistant component 21 in conjunction with the side wall 202. This means that in these embodiments of the application, since the heat-resistant component 21 can be made of asbestos fiber, glass fiber, ceramic fiber, etc., the heat-resistant component 21 made of these materials has the advantages of being easy to process and mold, having certain ductility, and being able to withstand high temperatures, but it will deform in high-temperature environments.
[0055] Based on this, in these embodiments of the present application, by configuring each assembly wall 22 as a quota and side wall 202 to clamp the heat-resistant component 21, the structural stability of the heat-resistant component 21 is improved, thereby enabling the heat-resistant component 21 to better protect the crucible 200, reduce the impact of temperature changes on the crucible 200, slow down the oxidation rate of the crucible 200 in an environment with large temperature changes, and improve the service life of the crucible 200.
[0056] In these embodiments of the present application, the number of assembly walls 22 may be, but is not limited to, two, three, four or five.
[0057] In some embodiments, the assembly wall 22 includes a body portion 221 and mounting portions 222 disposed at both ends of the body portion 221 along the circumference of the crucible 200. The mounting portions 222 of adjacent assembly walls 22 cooperate with each other and are connected by connectors.
[0058] The main body 221 serves as the main structure of the assembly wall 22, defining the external shape of the assembly wall 22. The mounting parts 222 are provided at both ends of the main body 221 along the circumference of the crucible 200, allowing adjacent assembly walls 22 to be connected and assembled through the mounting parts 222, thus achieving a detachable connection between adjacent assembly walls 22.
[0059] The mounting portions 222 of adjacent assembly walls 22 cooperate with each other. In a possible implementation, the mounting portions 222 are plate-shaped and formed by bending outward from the end of the body portion 221. During the assembly process of each assembly wall 22, the mounting portions 222 between adjacent assembly walls 22 can be set to a basically parallel state, and then the mounting portions 222 of adjacent assembly walls 22 can be connected by connectors.
[0060] In some embodiments, the connector (not shown) can be a screw and a nut. That is, by providing at least one through hole 2221 extending through the thickness direction on the mounting portion 222, and the through holes 2221 on the mounting portions 222 of adjacent assembly walls 22 corresponding axially, the screw can pass through the through holes 2221 on the mounting portions 222 of two adjacent assembly walls 22. In this way, by controlling the degree of fit between the screw head and the nut, the distance and tightness between adjacent assembly walls 22 can be controlled, resulting in a simple structure that is easy to implement.
[0061] In some embodiments, the assembly wall 22 includes a body portion 221 and an isolation portion 223 disposed inside the body portion 221, the isolation portion 223 being used to cooperate with the side wall 202 or the heat-resistant component 21.
[0062] During the transfer of crucible 200, in addition to the bottom wall 201 contacting the end wall 11 for support, it is necessary to reduce the probability of the side wall 202 contacting the surrounding wall 12. This is to reduce the risk of the side wall 202 of the crucible 200 being damaged by contact and collision with the surrounding wall 12, thereby increasing the rate of oxidation damage to the side wall 202 during use.
[0063] In related technologies, to reduce the risk of the side wall 202 of the crucible 200 being bumped or rubbed, it is usually necessary to place an isolation block between the side wall 202 and the surrounding wall 12 when the crucible 200 is placed into the first protective member 10. This isolates the side wall 202 from the surrounding wall 12, reducing the risk of bumping or rubbing between the side wall 202 and the surrounding wall 12 due to the shift of the crucible 200's center of gravity during the transport of the crucible 200. However, this arrangement requires precise control during the process of placing the crucible 200 into the first protective member 10, and the operation is quite difficult.
[0064] Based on this, in these embodiments of the present application, by providing an isolation portion 223 on the inner side of the main body portion 221, during the assembly process of the assembly wall 22, a gap is naturally formed between the side wall 202 and the assembly wall 22. After the assembly wall 22 is subsequently connected to the surrounding wall 12, the crucible 200 can be naturally placed at the center of the end wall 11, and there is a gap between the side wall 202 and the surrounding wall 12, which reduces the damage to the anti-oxidation coating caused by contact, collision and friction between the crucible 200 and the surrounding wall 12, reduces the probability of oxidation damage to the crucible 200, and thus improves the service life of the crucible 200.
[0065] In these embodiments of the present application, the isolation portion 223 can be arranged in a direction parallel to the bottom wall 201, and the thickness of the isolation portion 223 is 3 mm to 5 mm.
[0066] In some embodiments, the surface of the isolation portion 223 that mates with the sidewall 202 or the heat-resistant component 21 is an inclined surface, and the distance between the inclined surface and the body portion 221 gradually increases along the direction from the sidewall 202 to the bottom wall 201.
[0067] In these embodiments of the present application, the inclined design of the isolation part 223 can further reduce the contact area between the isolation part 223 and the crucible 200. At the same time, in some embodiments, the assembly wall 22 and the surrounding wall 12 can be assembled first, and then the crucible 200 can be placed in the crucible protection assembly 100. In this case, the inclined design is beneficial to control the crucible 200 to be placed in the center of the first protective member 10, thereby reducing the risk of the side wall 202 contacting the surrounding wall 12.
[0068] In some embodiments, the number of assembly walls 22 is four. The number of assembly walls 22 is four, so that the isolation portions 223 can be grouped in pairs to provide positioning for the crucible 200 from two different directions, thereby further improving the structural stability of the crucible 200 after it is placed in the crucible protection assembly 100.
[0069] In some embodiments, the heat-resistant component 21 may be provided as a ceramic fiber rope. The rope-shaped heat-resistant component 21 can be wound according to the actual size of the crucible 200 (the portion exposed to the first protective component 10), which helps to improve the applicability of the crucible protection assembly 100 and match crucibles 200 of different sizes.
[0070] This application also provides a metal purification apparatus, which includes a crucible protection assembly 100 as provided in any of the foregoing embodiments.
[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A crucible protection assembly, used to be disposed on the outside of a crucible to protect the bottom wall and side walls of the crucible, characterized in that, include: The first protective component includes an end wall and a surrounding wall. The surrounding wall is arranged around the periphery of the end wall. The end wall is used to support the bottom wall. The surrounding wall is spaced apart from the side wall. The second protective element includes a heat-resistant element for surrounding and abutting the sidewall; The surrounding wall and the heat-resistant component are configured such that, in a direction parallel to the bottom wall, the projection of any position of the side wall falls on the surrounding wall and / or the heat-resistant component.
2. The crucible protection assembly according to claim 1, characterized in that, The heat-resistant component is used to be disposed on one end of the side wall away from the bottom wall; In a direction parallel to the bottom wall, the surrounding wall is offset from the heat-resistant component.
3. The crucible protection assembly according to claim 2, characterized in that, The second protective component also includes at least two assembly walls, each of which is arranged around the circumference of the crucible and adjacent assembly walls are detachably connected. Each of the assembly walls is configured to clamp the heat-resistant component in conjunction with the side wall.
4. The crucible protection assembly according to claim 3, characterized in that, The assembly wall includes a body portion and mounting portions disposed at both ends of the body portion along the circumference of the crucible. The mounting portions of adjacent assembly walls cooperate with each other and are connected by connectors.
5. The crucible protection assembly according to claim 4, characterized in that, The connecting components are a screw and a nut.
6. The crucible protection assembly according to claim 3, characterized in that, The assembled wall includes a main body and an isolation portion disposed on the inner side of the main body, the isolation portion being used to cooperate with the side wall or the heat-resistant component.
7. The crucible protection assembly according to claim 6, characterized in that, The surface of the isolation portion that mates with the sidewall or the heat-resistant component is an inclined surface, and the distance between the inclined surface and the main body portion gradually increases along the direction from the sidewall to the bottom wall.
8. The crucible protection assembly according to claim 6, characterized in that, The number of assembly walls is four.
9. The crucible protection assembly according to any one of claims 1 to 8, characterized in that, The heat-resistant component is a ceramic fiber rope.
10. A metal purification apparatus, characterized in that, Includes the crucible protection assembly as described in any one of claims 1 to 9.