Resistance heating furnace and metal segregation purification apparatus for high-purity metals

Abstract

This application relates to a resistance heating furnace and a metal segregation purification apparatus for high-purity metals, belonging to the technical field of metal smelting equipment. The resistance heating furnace for high-purity metal segregation purification includes a furnace body and a resistance strip. The furnace body includes a main body and multiple hooks. The main body has a receiving space, and the multiple hooks are distributed sequentially at intervals along the circumference of the furnace body. Each hook includes a straight segment connected to the main body and an arc segment connected to one end of the straight segment away from the main body. The arc segment is disposed within the receiving space, forming a placement space with the straight segment. The resistance strip is disposed within the receiving space and sequentially passes through the placement space of the multiple hooks along the circumference of the furnace body. The resistance heating furnace and metal segregation purification apparatus for high-purity metals provided by this application at least solve the problem of weak resistance strip installation and fixation, which easily leads to resistance strip loosening in related technologies.

Description

Technical Field

[0001] This application relates to the field of metal smelting equipment technology, and in particular to a resistance heating furnace and a metal segregation purification device for high-purity metal segregation. 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] When using segregation to purify metals, a graphite crucible is usually placed in a resistance heating furnace. The resistance generates heat, which is then transferred to the graphite crucible to heat the metal inside.

[0004] In related technologies, the installation and fixing of resistance strips in resistance heating furnaces usually requires high installation accuracy, and the fixing bracket cannot fix the resistance strip. As a result, the resistance strip is easily carried away by the graphite crucible and detached during the process of putting it into or taking it out of the resistance heating furnace due to pressure changes in the furnace, which can easily lead to short circuits of the resistance strip or even safety accidents. Utility Model Content

[0005] Therefore, it is necessary to provide a resistance heating furnace for high-purity metal segregation purification, which addresses the problem of weak resistance band installation and easy detachment of the resistance band.

[0006] This application provides a resistance heating furnace for high-purity metal segregation purification. The furnace includes a furnace body and a resistance strip. The furnace body includes a main body and multiple hooks. The main body has a receiving space. The multiple hooks are distributed sequentially at intervals along the circumference of the furnace body. Each hook includes a straight segment connected to the main body and an arc segment connected to one end of the straight segment away from the main body. The arc segment is disposed within the receiving space, and the arc segment and the straight segment form a placement space. The resistance strip is disposed within the receiving space and sequentially passes through the placement space of the multiple hooks along the circumference of the furnace body.

[0007] In some embodiments, the central angle of the arc segment is not less than 180°.

[0008] In some embodiments, the hook further includes an extension section connected to the end of the curved segment that is away from the straight segment.

[0009] In some embodiments, the hooks are rotatably connected to the body, and each hook can rotate with a straight segment as the axis of rotation.

[0010] In some embodiments, the body portion is provided with a plurality of grooves, which are in communication with the receiving space; the hook also includes a rotating connector, which is connected to the straight segment and disposed in the groove, and the plurality of hooks are disposed in a one-to-one correspondence with the plurality of grooves.

[0011] In some embodiments, the body includes, from the inside out, a high-alumina brick, an insulating brick, an insulating material, an insulating machine board, a calcium carbonate board, and a steel outer shell; the bottom surface of the groove is disposed in the insulating brick.

[0012] In some embodiments, the body includes a bottom wall and an opening disposed opposite to each other; along the circumference of the furnace body, the arc segment of one of the adjacent hooks bends toward the direction closer to the bottom wall, and the arc segment of the other hook bends toward the direction closer to the opening.

[0013] In some embodiments, the body includes a bottom wall and an opening disposed opposite to each other, and multiple hooks are distributed in multiple layers along the direction from the bottom wall to the opening.

[0014] In some embodiments, hooks are provided one-to-one along the direction from the bottom wall to the opening, and the arc segment of one of the adjacent hooks bends toward the direction closer to the bottom wall, while the arc segment of the other bends toward the direction closer to the opening.

[0015] This application also provides a metal segregation purification apparatus, which includes a crucible and a resistance heating furnace for high-purity metal segregation purification as provided in any of the foregoing embodiments.

[0016] The resistance heating furnace for high-purity metal segregation purification provided in the embodiments of this application has at least the following beneficial effects:

[0017] By setting hooks that include both straight and curved segments, with the curved and straight segments forming a placement space, and by setting the resistance band to pass sequentially through the placement space of multiple hooks along the circumference of the furnace body, the resistance band can be effectively limited by the placement space, improving the stability of the resistance band after installation and reducing the risk of the resistance band falling off due to pressure changes caused by the graphite crucible being placed into or removed from the resistance heating furnace, thus improving the reliability of the resistance heating furnace.

[0018] 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, specific embodiments of this application are given below. Attached Figure Description

[0019] 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.

[0020] Figure 1 A three-dimensional structural schematic diagram of a resistance heating furnace for high-purity metal segregation purification provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 The diagram shows an enlarged view of part A of the resistance heating furnace used for high-purity metal segregation purification.

[0022] Figure 3 A cross-sectional schematic diagram of a portion of the resistance heating furnace for high-purity metal segregation purification provided in an embodiment of this application;

[0023] Figure 4 for Figure 3 The diagram shows part B of the method for a resistance heating furnace used for the segregation purification of high-purity metals.

[0024] Explanation of reference numerals in the attached drawings: 100, Resistance heating furnace for high-purity metal segregation purification; 10, Furnace body; 11, Main body section; 111, Groove; 112, High-alumina brick; 113, Insulating brick; 114, Insulating material; 115, Insulating material board; 116, Calcium carbonate board; 117, Steel outer shell; 118, Bottom wall; 119, Opening; 12, Hook; 121, Straight section; 122, Curved section; 123, Extension section; 124, Rotating connecting piece;

[0025] 101. Storage space; 102. Placement space. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Please refer to the following: Figures 1 to 3 This application provides a resistance heating furnace 100 for high-purity metal segregation purification. The resistance heating furnace 100 includes a furnace body 10 and a resistance strip (not shown). The furnace body 10 includes a main body 11 and a plurality of hooks 12. The main body 11 has a receiving space 101. The plurality of hooks 12 are distributed sequentially at intervals along the circumference of the furnace body 10. Each hook 12 includes a straight segment 121 connected to the main body 11 and an arc segment 122 connected to one end of the straight segment 121 away from the main body 11. The arc segment 122 is disposed in the receiving space 101, and the arc segment 122 and the straight segment 121 form a placement space 102. The resistance strip is disposed in the receiving space 101 and is disposed sequentially through the placement space 102 of the plurality of hooks 12 along the circumference of the furnace body 10.

[0033] The resistance heating furnace 100 for high-purity metal segregation purification is used in conjunction with a graphite crucible. It heats up by passing electricity through the resistance band and transfers heat to the graphite crucible, thereby heating and segregating the metal stored in the graphite crucible for purification.

[0034] The resistance heating furnace 100 for high-purity metal segregation purification includes a furnace body 10 and a resistance band. During operation, the furnace body 10 is mainly used to support the graphite crucible, thereby enabling the resistance band in the furnace body 10 to transfer heat to the graphite crucible.

[0035] The furnace body 10 includes a main body 11 and a plurality of hooks 12. The main body 11 has a receiving space 101, and the plurality of hooks 12 are distributed sequentially at intervals along the circumference of the furnace body 10. This means that the main body 11 has a hollow structure, and the receiving space 101 is a storage space for the resistance band. At the same time, the receiving space 101 is used to hold the graphite crucible during operation, and the graphite crucible is heated by the heat released by the resistance band.

[0036] Multiple hooks 12 are distributed sequentially at intervals along the circumference of the furnace body 10 to collectively install the resistance band within the receiving space 101 along the circumference of the furnace body 10. That is, the hooks 12 are components in the furnace body that actually come into contact with the resistance band and provide support for the installation of the resistance band.

[0037] In these embodiments of this application, the hook 12 includes a straight segment 121 connected to the body portion 11 and an arc segment 122 connected to one end of the straight segment 121 away from the body portion 11. The arc segment 122 is disposed within the receiving space 101, and the arc segment 122 and the straight segment 121 form a placement space 102. Compared to the related art where the hook 12 is designed as a structure similar to the letter "L" formed by two intersecting straight segments, the arrangement of the arc segment 122 allows at least a portion of the arc segment 122 to be radially opposite to the straight segment 121, thereby forming a placement space 102 capable of hooking the resistor strip.

[0038] In related technologies, during the process of placing or removing the graphite crucible, the pressure in the internal space 101 of the furnace body 10 is easily changed. At this time, the "L"-shaped hook structure has a poor limiting effect on the resistance band. Under the long-term effect of pressure changes, the resistance band is easily detached from the hook, which may lead to a short circuit in the resistance band or even a risk of safety accidents.

[0039] In these embodiments of this application, the arc segment 122 and the straight segment 121 form a placement space 102, so that after the resistance strip is placed in the receiving space 101 through the placement space 102 of each hook 12, when the pressure in the receiving space 101 changes due to the insertion and removal of the graphite crucible, the arc segment 122 always has a limiting effect on the resistance strip, so as to restrict the resistance strip from falling off, thereby improving the stability and reliability of the resistance heating furnace 100 for high-purity metal segregation purification.

[0040] It should be noted that the placement space 102 can be regarded as a space enclosed by the straight line segment 121 and the arc segment 122 in the plane. During the placement of the resistance strip, the resistance strip passes through the placement space 102 of each hook 12 in sequence along the normal of each plane. In this way, the resistance strip is arranged around the furnace body 10 in the circumference of the accommodating space 101. Then, the resistance strip can release heat evenly in the circumference of the furnace body 10 to achieve uniform heating of the graphite crucible.

[0041] The arc segment 122 and the straight segment 121 form a placement space 102. This means that one end of the arc segment 122 is connected to the straight segment 121, and the other end is bent and folded to form a clamp-like structure with the straight segment 121. The middle space of this structure is the placement space 102. At this time, when the resistor strip is placed on the hook 12, the arc segment 122 can at least cooperate with the straight segment 121 to restrict the movement of the resistor strip in two opposite directions.

[0042] In these embodiments of this application, the end of the arc segment 122 that is away from the straight segment 121 can be set to form an opening at a distance from the straight segment 121. In this way, during the installation of the resistor strip, the operator can install it through the opening structure of each hook 12, thereby effectively improving the installation efficiency of the resistor strip.

[0043] The straight segment 121 and the curved segment 122 can be connected by methods such as welding or integral molding to strengthen the structural consistency between the straight segment 121 and the curved segment 122 and reduce the risk of breakage or damage to the straight segment 121 and the main body 11 during use. In some embodiments, the straight segment 121 and the curved segment 122 can also be connected by detachable connection methods such as plug-in or threaded connection, which can improve the disassembly and assembly efficiency between the straight segment 121 and the curved segment 122 and facilitate the subsequent maintenance and replacement of the hook 12.

[0044] In these embodiments of this application, the connection between the straight segment 121 and the body part 11 can be a movable connection, so that during the installation of the resistor strip, each hook 12 can be adjusted slightly in position and posture according to the needs of installation to adapt to the installation of the resistor strip; in some embodiments, it can also be a fixed connection to strengthen the structural strength between the hook 12 and the body part 11 and further improve the load-bearing capacity of the hook 12.

[0045] In some embodiments, the central angle of the arc segment 122 is not less than 180°. That is, the arc segment 122 is an arc of not less than a semicircle, which can better limit the space of the placement space 102 and further improve the structural stability of the resistor strip in the placement space 102.

[0046] Exemplary examples, in some embodiments of this application, the central angle of the arc segment 122 can be set to 190°, 200°, 240°, 280°, 320°, or 350°, but is not limited to that specified. In some embodiments, the central angle of the arc segment 122 can be set to be greater than 180° and less than 270°. In this case, the placement space 102 can provide good support and limiting effect for the resistor strip, and the opening size is not too small, which is beneficial for operators to disassemble and assemble the resistor strip during the installation, maintenance, and replacement stages.

[0047] In some embodiments, the hook 12 further includes an extension 123, which is connected to the end of the arc segment 122 that is away from the straight segment 121.

[0048] The extension segment 123 is designed to further increase the ability of the end of the arc segment 122 to limit the resistance band, thereby further reducing the risk of the resistance band falling off.

[0049] It is understandable that the extension segment 123 can usually be set as a straight line and connected to the end of the arc segment 122 that is away from the straight line segment 121. That is, the extension segment 123 can extend the end of the arc segment 122 that is away from the straight line segment 121 along its tangent direction by a certain distance.

[0050] When the central angle of the arc segment 122 is greater than 180°, the extension segment 123 can continue to extend at the end of the arc segment 122, and further narrow the gap between the arc segment 122 and the straight segment 121, thereby further enhancing the limiting effect on the resistance band.

[0051] The connection between the extension segment 123 and the arc segment 122 can be fixed by welding or integral molding; in some embodiments, the extension segment 123 and the arc segment 122 can also be connected by detachable connection methods such as threaded connection, plug-in connection, and snap-fit ​​connection, so that the hook 12 can meet the needs of resistor strips of different sizes and has a wider range of applications.

[0052] In some embodiments, the hook 12 is rotatably connected to the body 11, and each hook 12 can rotate with the straight segment 121 as the axis of rotation.

[0053] The hook 12 is rotatably connected to the body 11, causing the straight segment 121 to rotate relative to the body 11. This allows the operator to change the orientation of the arc segment 122 when installing the resistor strip, thus avoiding obstruction during installation. Alternatively, the rotation of the hook 12 itself can further enhance the limiting effect on the resistor strip.

[0054] In these embodiments of the present application, the rotation between the hook 12 and the body 11 is only allowed during the installation or removal of the resistor strip. There must be a positioning component, such as a screw or bolt, between the hook 12 and the body 11. The positioning component can be used to position the hook 12 after it has rotated to the required orientation angle, so as to limit the further rotation of the hook 12.

[0055] In some embodiments, the body portion 11 is provided with a plurality of grooves 111, the grooves 111 being in communication with the receiving space 101; the hook 12 further includes a rotating connector 124, the rotating connector 124 being connected to the straight segment 121 and disposed in the groove 111, and the plurality of hooks 12 are disposed in a one-to-one correspondence with the plurality of grooves 111.

[0056] A groove 111 is provided on the side wall of the body 11 for mounting the hook 12.

[0057] The rotating connector 124 is connected to the straight segment 121. In possible implementations, the rotating connector 124 can be fixedly connected to the straight segment 121 by welding or integral molding, or it can be detachably connected by threaded connection or snap-fit.

[0058] In these embodiments of the present application, the rotating connector 124 may be, but is not limited to, block-shaped, plate-shaped, or spherical.

[0059] The rotating connector 124 is disposed in the groove 111 so as to limit the movement of the rotating connector 124 by means of the groove 111, and allow the rotating connector 124 to rotate relative to the groove 111, thereby driving the straight segment 121 to rotate around its own axis.

[0060] For example, in some embodiments, the groove 111 may be circular in cross-sectional shape along its concave direction, and a baffle may be provided at the open end of the groove 111, with a connecting hole at the center of the baffle. In this case, the rotating connector 124 may be limited between the groove 111 and the baffle, and the straight segment 121 may pass through the connecting hole and extend into the receiving space 101. The groove 111 and the baffle together limit the movement of the rotating connector 124, thereby restricting its movement. At the same time, the rotating connector 124 may rotate within the space formed by the groove 111 and the baffle.

[0061] In some embodiments, the body 11 includes a high-alumina brick 112, a heat-insulating brick 113, a heat-insulating material 114, a heat-insulating machine plate 115, a calcium carbonate plate 116, and a steel shell 117 arranged sequentially from the inside to the outside; the bottom surface of the groove 111 is disposed in the heat-insulating brick 113.

[0062] Among them, the high-alumina brick 112 mainly plays the role of supporting and protecting the furnace body 10. It has good mechanical strength and refractoriness, can withstand physical and chemical effects under high temperature environment, reduce the risk of the furnace body 10 structure being damaged, and improve the operational stability and reliability of the resistance heating furnace 100 for high purity metal segregation purification.

[0063] Insulating bricks 113 are used to reduce heat loss from the inside of the furnace body 10 to the outside, achieving a good heat preservation effect, improving thermal efficiency, and reducing energy consumption. At the same time, they can also even out heat distribution, making the temperature inside the furnace more uniform, which is conducive to the stable operation of the segregation method for metal purification.

[0064] The insulation material 114 is filled into the gaps or specific parts of the furnace body 10 to further enhance the insulation performance, prevent heat loss through these weak points, ensure the effective utilization of heat in the furnace, and maintain the high-temperature environment required in the furnace, which is of great significance for improving purification efficiency and quality.

[0065] The insulation board 115 is usually used for the lining of the furnace body 10 or for insulation of specific parts. It has good thermal insulation performance and certain mechanical strength, which can effectively block the transfer of heat and reduce heat loss. At the same time, it can also play a certain supporting and protective role, preventing the high temperature inside the furnace from damaging the structure of the furnace body 10.

[0066] During the heating process, calcium carbonate in the 116 plate decomposes to produce carbon dioxide gas. This gas can provide some insulation, preventing rapid heat transfer. Furthermore, the calcium oxide and other substances produced during the decomposition of calcium carbonate can absorb impurities or reaction products within the furnace, purifying the furnace environment and contributing to improved metal purity.

[0067] The steel outer shell 117 is the outermost protective structure of the furnace body 10, which is used to reduce the risk of damage to the furnace body 10 from external impacts, and at the same time can further improve the structural reliability of the furnace body 10.

[0068] In summary, the furnace body 10 includes the aforementioned multi-layer insulation structure to maintain a constant and uniform temperature within the resistance heating furnace 100 for high-purity metal segregation purification, thereby better heating the graphite crucible. In these embodiments of this application, the bottom surface of the groove 111 is positioned within the insulation brick 113, meaning the groove 111 needs to pass through the two internal support and protection layers of the high-alumina brick 112 and the insulation brick 113. This reduces the impact of the hook 12 installation on the insulation effect of the furnace body 10 while also providing sufficient depth for the installation of the hook 12.

[0069] In some embodiments, the body portion 11 includes a bottom wall 118 and an opening 119 disposed opposite to each other; along the circumference of the furnace body 10, the arc segment 122 of one of the adjacent hooks 12 bends toward the direction close to the bottom wall 118, and the arc segment 122 of the other bends toward the direction close to the opening 119.

[0070] In these embodiments of this application, along the circumference of the furnace body 10, the arc segment 122 of one of the adjacent hooks 12 bends toward the direction closer to the bottom wall 118, and the arc segment 122 of the other bends toward the direction closer to the opening 119. This means that after the resistor strip is installed, the arc segments 122 of the adjacent hooks 12 are oriented in opposite directions, with one facing the opening 119 and the other facing the bottom wall 118.

[0071] This design is compatible with the typical detachment pattern of the resistance strip, where pressure changes within the receiving space 101 cause it to detach along the direction from the bottom wall 118 to the opening 119. In these embodiments of this application, by defining the orientation of the hooks 12, the operator can install the resistance strip on the side of the previous hook 12 closest to the opening 119 and on the side of the subsequent hook 12 closest to the bottom wall 118 when installing the resistance strip. The rotation of the hooks 12 themselves ensures good support for the resistance strip at all points in the circumference. In this way, the resistance strip provides good support to each hook 12 during both the insertion and removal of the graphite crucible, greatly reducing the risk of the resistance strip detaching due to the insertion or removal of the graphite crucible.

[0072] In some embodiments, the body portion 11 includes a bottom wall 118 and an opening 119 disposed opposite to each other, and a plurality of hooks 12 are distributed in multiple layers along the direction from the bottom wall 118 to the opening 119.

[0073] Multiple hooks 12 are arranged in layers along the direction from the bottom wall 118 to the opening 119, so that the temperature inside the furnace body 10 is more uniform in the direction from the bottom wall 118 to the opening 119, thereby achieving uniform heating of the graphite crucible in all directions.

[0074] In some embodiments, hooks 12 of each layer are provided one-to-one along the direction from the bottom wall 118 to the opening 119, and the arc segment 122 of one of the adjacent hooks 12 bends toward the direction closer to the bottom wall 118, while the arc segment 122 of the other bends toward the direction closer to the opening 119.

[0075] This allows the resistance bands to be staggered in each layer, further improving the uniformity of heat distribution within the furnace body 10 and enhancing the performance of uniform heating of the graphite crucible from all directions.

[0076] This application also provides a metal segregation purification apparatus, which includes a graphite crucible and a resistance heating furnace 100 for high-purity metal segregation purification as provided in any of the foregoing embodiments.

[0077] 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.

[0078] 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 resistance heating furnace for high-purity metal segregation purification, characterized in that, include: The furnace body includes a main body and a plurality of hooks. The main body has a receiving space. The plurality of hooks are distributed sequentially at intervals along the circumference of the furnace body. Each hook includes a straight segment connected to the main body and an arc segment connected to one end of the straight segment away from the main body. The arc segment is disposed within the receiving space, and the arc segment and the straight segment form a placement space. The resistance strip is disposed within the accommodating space and sequentially passes through the placement space of the multiple hooks along the circumference of the furnace body.

2. The resistance heating furnace for high-purity metal segregation purification according to claim 1, characterized in that, The central angle of the arc segment is not less than 180°.

3. The resistance heating furnace for high-purity metal segregation purification according to claim 1, characterized in that, The hook further includes an extension section connected to one end of the arc segment that is away from the straight segment.

4. The resistance heating furnace for high-purity metal segregation purification according to claim 1, characterized in that, The hook is rotatably connected to the main body, and each hook can rotate around the straight segment as the axis of rotation.

5. The resistance heating furnace for high-purity metal segregation purification according to claim 4, characterized in that, The main body is provided with a plurality of grooves, and the grooves are in communication with the receiving space; The hook also includes a rotating connector, which is connected to the straight segment and disposed in the groove, with multiple hooks corresponding to multiple grooves one by one.

6. The resistance heating furnace for high-purity metal segregation purification according to claim 5, characterized in that, The main body comprises, from the inside out, high-alumina bricks, insulating bricks, insulating material, insulating machine-made board, calcium carbonate board, and steel shell; The bottom surface of the groove is set in the insulating brick.

7. The resistance heating furnace for high-purity metal segregation purification according to claim 4, characterized in that, The main body includes a bottom wall and an opening disposed opposite to each other; Along the circumference of the furnace body, the arc segment of one of the adjacent hooks bends toward the direction closer to the bottom wall, and the arc segment of the other bends toward the direction closer to the opening.

8. The resistance heating furnace for high-purity metal segregation purification according to any one of claims 1 to 7, characterized in that, The main body includes a bottom wall and an opening disposed opposite to each other, and the multiple hooks are distributed in multiple layers along the direction from the bottom wall to the opening.

9. The resistance heating furnace for high-purity metal segregation purification according to claim 8, characterized in that, Along the direction from the bottom wall to the opening, the hooks of each layer are arranged in a corresponding manner, and the arc segment of one of the adjacent hooks bends toward the direction closer to the bottom wall, while the arc segment of the other hook bends toward the direction closer to the opening.

10. A metal segregation purification apparatus, characterized in that, It includes a graphite crucible and a resistance heating furnace for high-purity metal segregation purification as described in any one of claims 1 to 9.

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