Frame-type graphitization box-type furnace

By designing a frame-type graphitization box furnace, the combined structure of the bottom plate, longitudinal closure mechanism, transverse closure mechanism and internal heating mechanism is adopted, the problem of low heating efficiency of traditional box furnaces is solved, and the uniform graphitization and high-quality graphitization of the negative electrode material are achieved.

CN222812152UActive Publication Date: 2025-04-29FUJIAN KEDA NEW ENERGY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421411125.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-19
Publication Date
2025-04-29
Estimated Expiration
2034-06-19

AI Technical Summary

Technical Problem

The heating efficiency of traditional box furnaces during graphitization is low, resulting in uneven graphitization of the negative electrode material, reducing the graphitization efficiency and quality.

Method used

A frame-type graphitized box furnace is designed, adopting a combined structure of the base plate, longitudinal closure mechanism, transverse closure mechanism and internal heating mechanism. Through the design of conductive components and connecting columns, uniform heat transfer and heating are achieved.

Benefits of technology

The heating efficiency of the negative electrode material inside the box is improved, the uniform graphitization of the negative electrode material is ensured, and the quality of graphitization is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222812152U_ABST
    Figure CN222812152U_ABST
Patent Text Reader

Abstract

The utility model relates to a frame-type graphitization box-type furnace, which is characterized in that when a negative electrode material needs to be graphitized in the actual production and use process, the negative electrode material can be placed in a box body formed by a bottom plate, a longitudinal sealing mechanism and a transverse sealing mechanism, and then the longitudinal sealing mechanism and an internal heating mechanism are electrified; the heat generated after the longitudinal sealing mechanism is powered on is transmitted to the negative electrode material on the outer side of the box body from the outer side, the negative electrode material on the outer side of the box body is graphitized, meanwhile, the conductive assembly on the internal heating mechanism also conducts electricity, the conductive assembly reaches preset heat, and the conductive assembly transmits heat to the two sides. The negative electrode material in the box body can be graphitized better, so that the negative electrode material can be graphitized more conveniently, the heating efficiency of the negative electrode material in the box body is improved, the negative electrode material in the box body can be graphitized more uniformly, and the graphitization quality of the negative electrode material is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of graphitization box-type furnaces, in particular to a frame-type graphitization box-type furnace. Background Art

[0002] One of the key links in the graphitization process is furnace loading. The box furnace process can increase the loading capacity of a single furnace compared to the crucible method.

[0003] The box-type furnace process is to place the negative electrode material directly in the box space surrounded by graphite plates. The graphite plates are conductive, and the box generates heat after being energized. It can heat the material while serving as a container for the negative electrode material. The box-type furnace process avoids the repeated loading and unloading of the negative electrode material into and out of the crucible.

[0004] The traditional box-type furnace is to energize the box, and then the box will heat up. Since the negative electrode material in the center of the box is far away from the box, the heat transfer effect of the box alone is poor, and the graphitization degree of the negative electrode material in the box will be uneven, thereby greatly reducing the efficiency and quality of the graphitization of the negative electrode material. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above-mentioned problems of the prior art, the utility model provides a frame-type graphitization box furnace, which can more conveniently graphitize the negative electrode material and improve the heating efficiency of the negative electrode material inside the box, so that the negative electrode material in the box can be graphitized more evenly, thereby improving the graphitization quality of the negative electrode material.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A frame-type graphitization box furnace, comprising a bottom plate, a longitudinal sealing mechanism, a transverse sealing mechanism and an internal heating mechanism, wherein the longitudinal sealing mechanisms are arranged on opposite sides of the bottom plate, one end of the longitudinal sealing mechanism is connected to one end of another longitudinal sealing mechanism through a transverse sealing mechanism, and the other end of the longitudinal sealing mechanism is connected to the other end of another longitudinal sealing mechanism through another transverse sealing mechanism, and a plurality of internal heating mechanisms are arranged above the bottom plate along the direction of the transverse sealing mechanism, one transverse sealing mechanism is connected to another transverse sealing mechanism through the internal heating mechanism, and the transverse sealing mechanism is arranged vertically with the longitudinal sealing mechanism;

[0010] The internal heating mechanism includes connecting columns and conductive components. Several groups of the conductive components are arranged above the bottom plate along the direction of the longitudinal closing mechanism. The conductive components are connected by the connecting columns. The connecting columns are pressed on the top surface of the bottom plate. The conductive components at the two ends of the internal heating mechanism are respectively connected to the transverse closing mechanism.

[0011] Furthermore, the conductive component includes a plurality of conductive columns and support blocks, and the plurality of conductive columns are arranged from top to bottom above the base plate, and a support block is arranged below each end of the conductive column, and the lower portion of the support block is connected to the next conductive column, and the support blocks at the bottom of the conductive component are pressed above the base plate, and the conductive columns are connected to adjacent connecting columns through the support blocks.

[0012] Furthermore, the longitudinal closing mechanism includes a plurality of first columns, longitudinal side panels and first pads, a plurality of first columns are arranged on one side of the base plate, a first pad is arranged at the lower part of the first column, both sides of the base plate are mounted on the first pads, adjacent first columns on the same side are connected through a longitudinal side panel, the first column at one end of one longitudinal closing mechanism is connected to the first column at one end of another longitudinal closing mechanism through a transverse closing mechanism, and the first column at the other end of one longitudinal closing mechanism is connected to the first column at the other end of another longitudinal closing mechanism through another transverse closing mechanism.

[0013] Furthermore, the transverse closing mechanism includes a second column, a transverse side plate and a second pad, a plurality of the second columns are arranged between one end of one longitudinal closing mechanism and one end of another longitudinal closing mechanism, adjacent second columns are connected by a transverse side plate, the second columns closest to the longitudinal closing mechanism are connected to the first columns by another transverse side plate, a second pad is provided at the bottom of the second column, and both sides of the bottom plate are placed on the second pad.

[0014] Furthermore, it also includes a settlement cover plate, which is provided with arc cutting grooves matching the first column and the second column on all sides. The settlement cover plate is arranged above the internal heating mechanism and is slidably connected to the first column and the second column.

[0015] Furthermore, the settlement cover plate is divided into a plurality of equal-sized pressing plates.

[0016] Furthermore, the longitudinal side plate includes a plurality of conductive plates of the same size, the first column is provided with a first slot adapted to the conductive plate, the conductive plates are inserted into the first slot one by one, and the conductive plates are overlapped with each other.

[0017] Furthermore, the transverse side panels include several transverse panels of the same size, second slots adapted to the transverse panels are provided on both sides of the second column, the transverse panels are inserted into the second slots, a third slot is provided on the first column closest to the transverse closing mechanism, and the transverse side panels at the two ends of the transverse closing mechanism are respectively connected to one of the first columns through one of the third slots.

[0018] (III) Beneficial effects

[0019] The beneficial effect of the utility model is that when the negative electrode material needs to be graphitized during actual production and use, the negative electrode material can be placed inside a box body composed of a bottom plate, a longitudinal sealing mechanism and a transverse sealing mechanism, and then the longitudinal sealing mechanism and the internal heating mechanism are energized, so that the heat generated by the longitudinal sealing mechanism after energization is transferred from the outside to the negative electrode material on the outer side of the box body, so that the negative electrode material on the outer side of the box body is graphitized, and at the same time, the conductive component on the internal heating mechanism is also conductive, so that the conductive component reaches a predetermined heat, and the conductive component transfers heat to both sides, so that the negative electrode material inside the box body can be better graphitized, thereby making it more convenient to graphitize the negative electrode material, and improving the heating efficiency of the negative electrode material inside the box body, so that the negative electrode material in the box body can be graphitized more evenly, thereby improving the graphitization quality of the negative electrode material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a frame-type graphitization box furnace according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of a frame-type graphitization box furnace according to an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the internal heating mechanism of the frame-type graphitization box furnace of the embodiment of the utility model;

[0023] [Description of Reference Numerals]

[0024] Internal heating mechanism 1, second column 2, transverse side plate 3, second pad 4, bottom plate 5, third pad 6, first pad 7, first column 8, longitudinal side plate 9, settlement cover plate 10, conductive column 101, connecting column 102, support block 103, groove 501, opening 502, bearing plate 503, transverse plate 31, conductive plate 91, pressing plate 1001. DETAILED DESCRIPTION

[0025] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0026] Please refer to Figures 1 to 3 As shown, a frame-type graphitization box furnace of the utility model comprises a bottom plate 5, a longitudinal closing mechanism, a transverse closing mechanism and an internal heating mechanism 1, wherein the longitudinal closing mechanisms are arranged on opposite sides of the bottom plate 5, one end of the longitudinal closing mechanism is connected to one end of another longitudinal closing mechanism through a transverse closing mechanism, and the other end of the longitudinal closing mechanism is connected to the other end of another longitudinal closing mechanism through another transverse closing mechanism, and a plurality of internal heating mechanisms 1 are arranged above the bottom plate 5 along the direction of the transverse closing mechanism, and one transverse closing mechanism is connected to another transverse closing mechanism through the internal heating mechanism 1, and the transverse closing mechanism is vertically arranged with the longitudinal closing mechanism;

[0027] The internal heating mechanism 1 includes connecting columns 102 and conductive components. Several groups of the conductive components are arranged above the bottom plate 5 along the direction of the longitudinal closing mechanism. The conductive components are connected to each other through the connecting columns 102. The connecting columns 102 are pressed on the top surface of the bottom plate 5. The conductive components at the two ends of the internal heating mechanism 1 are respectively connected to the transverse closing mechanism.

[0028] The working principle of the utility model is as follows: when it is necessary to graphitize the negative electrode material during actual production and use, the negative electrode material can be placed inside a box composed of a bottom plate 5, a longitudinal sealing mechanism and a transverse sealing mechanism, and then the longitudinal sealing mechanism and the internal heating mechanism 1 are energized, so that the heat generated by the longitudinal sealing mechanism after energization is transferred from the outside to the negative electrode material on the outer side of the box, so that the negative electrode material on the outer side of the box is graphitized, and at the same time, the conductive component on the internal heating mechanism 1 is also conductive, so that the conductive component reaches a predetermined heat, and the conductive component transfers heat to both sides, so that the negative electrode material inside the box can be better graphitized.

[0029] Furthermore, the conductive component includes a plurality of conductive columns 101 and a support block 103. The plurality of conductive columns 101 are arranged from top to bottom above the base plate 5. A support block 103 is provided below each end of the conductive column 101. The lower portion of the support block 103 is connected to the next conductive column 101. The support blocks 103 at the bottom of the conductive component are pressed above the base plate 5. The conductive columns 101 are connected to the adjacent connecting columns 102 through the support blocks 103.

[0030] From the above description, it can be seen that when it is necessary to heat the negative electrode material inside the box, several conductive pillars 101 can be energized to heat the conductive pillars 101, and then the heat generated by the conductive pillars 101 is spread to the surroundings of the box, so that the negative electrode material inside the box is better heated, and the two conductive pillars 101 can be better limited and separated by the support block 103, so that the conductive pillars 101 can better perform their functions.

[0031] Furthermore, the longitudinal closing mechanism includes a plurality of first columns 8, longitudinal side plates 9 and first cushion blocks 7, a plurality of first columns 8 are arranged on one side of the base plate 5, a first cushion block 7 is arranged at the lower part of the first column 8, both sides of the base plate 5 are laid on the first cushion blocks 7, the first columns 8 adjacent to each other on the same side are connected through a longitudinal side plate 9, the first column 8 at one end of one longitudinal closing mechanism is connected to the first column 8 at one end of another longitudinal closing mechanism through a transverse closing mechanism, and the first column 8 at the other end of one longitudinal closing mechanism is connected to the first column 8 at the other end of another longitudinal closing mechanism through another transverse closing mechanism.

[0032] From the above description, it can be seen that when it is necessary to heat the negative electrode material on the outer side of the box, the longitudinal side plate 9 can be energized to generate heat, and then the negative electrode material on the outer side of the box is heated, and the longitudinal side plate 9 can be better installed through the first column 8, so that the first pad 7 can better support the bottom plate 5, so that the bottom plate 5 is suspended.

[0033] Furthermore, the transverse closing mechanism includes a second column 2, a transverse side plate 3 and a second pad 4, and a plurality of second columns 2 are arranged between one end of one longitudinal closing mechanism and one end of another longitudinal closing mechanism, and adjacent second columns 2 are connected by a transverse side plate 3, and the second columns 2 closest to the longitudinal closing mechanism are connected to the first column 8 by another transverse side plate 3, and a second pad 4 is provided at the bottom of the second column 2, and both sides of the bottom plate 5 are placed on the second pad 4.

[0034] From the above description, it can be seen that when the negative electrode material needs to be placed in the device for graphitization, the opening between the longitudinal closing mechanism is closed by the transverse side plate 3 and the second column 2, so that the box composed of the longitudinal closing mechanism, the bottom plate 5 and the transverse closing mechanism can better store the negative electrode material, and the two ends of the bottom plate 5 are suspended by the second pad 4.

[0035] Furthermore, it also includes a settlement cover plate 10, which is provided with arc grooves matching the first column 8 and the second column 2 on all four sides. The settlement cover plate 10 is covered above the internal heating mechanism 1 and is slidably connected to the first column 8 and the second column 2.

[0036] From the above description, it can be seen that the sedimentation cover plate 10 is conducive to the sedimentation with the material and adheres to the material. The sedimentation cover plate 10 can be energized so that the sedimentation cover plate 10 directly heats the upper material, which is conducive to improving the graphitization degree of the upper material and at the same time facilitating the discharge of gas in the material.

[0037] Furthermore, the settlement cover plate 10 is divided into a plurality of pressing plates 1001 of equal size.

[0038] From the above description, it can be seen that it is beneficial to split the sinking cover plate 10 into several pressing plates 1001 for better processing and transportation, and the pressing plates 1001 can sink better.

[0039] Furthermore, the longitudinal side plate 9 includes a plurality of conductive plates 91 of the same size, the first column 8 is provided with a first slot adapted to the conductive plate 91, the conductive plates 91 are inserted into the first slot one by one, and the conductive plates 91 are overlapped with each other.

[0040] From the above description, it can be seen that the conductive plate 91 can be quickly installed on the first column 8 through the first slot, and the longitudinal side plate 9 can be split into multiple pieces, which can facilitate subsequent transportation and processing.

[0041] Furthermore, the transverse side panels 3 include a plurality of transverse panels 31 of the same size, and second slots adapted to the transverse panels 31 are provided on both sides of the second column 2, and the transverse panels 31 are inserted into the second slots. A third slot is provided on the first column 8 closest to the transverse closing mechanism, and the transverse side panels 3 at the two ends of the transverse closing mechanism are respectively connected to one of the first columns 8 through one of the third slots.

[0042] From the above description, it can be seen that the openings between the longitudinal closing mechanisms can be better closed by the transverse plate 31 and the second column 2, and the transverse side plate 3 can be split into multiple pieces, which can facilitate subsequent transportation and processing.

[0043] Embodiment 1

[0044] Please refer to Figures 1 to 3A frame-type graphitization box furnace comprises a bottom plate 5, a longitudinal sealing mechanism, a transverse sealing mechanism and an internal heating mechanism 1, wherein the longitudinal sealing mechanisms are arranged on opposite sides of the bottom plate 5, one end of the longitudinal sealing mechanism is connected to one end of another longitudinal sealing mechanism through a transverse sealing mechanism, and the other end of the longitudinal sealing mechanism is connected to the other end of another longitudinal sealing mechanism through another transverse sealing mechanism, and a plurality of internal heating mechanisms 1 are arranged above the bottom plate 5 along the direction of the transverse sealing mechanism, one transverse sealing mechanism is connected to another transverse sealing mechanism through the internal heating mechanism 1, and the transverse sealing mechanism is vertically arranged with the longitudinal sealing mechanism;

[0045] The internal heating mechanism 1 includes a connecting column 102 and a conductive component. A plurality of groups of the conductive components are arranged above the bottom plate 5 in the direction of the longitudinal closing mechanism. The conductive components are connected by the connecting column 102. The connecting column 102 is pressed on the top surface of the bottom plate 5. The conductive components at the two ends of the internal heating mechanism 1 are respectively connected to the transverse closing mechanism.

[0046] The conductive assembly includes a plurality of conductive pillars 101 and a support block 103. A plurality of conductive pillars 101 are arranged from top to bottom above the bottom plate 5. A support block 103 is arranged below both ends of the conductive pillars 101. The lower part of the support block 103 is connected to the next conductive pillar 101. The support blocks 103 at the bottom of the conductive assembly are pressed above the bottom plate 5. The conductive pillars 101 are connected to the adjacent connecting pillars 102 through the support blocks 103.

[0047] Both ends of the conductive pillars 101 are processed into tenon structures, and the connecting pillars 102 are provided with inner arc surface vertical grooves. Multiple conductive pillars 101 are longitudinally inserted into the inner arc surface vertical grooves of the connecting pillars 102. By placing support blocks 103 in the inner arc surface vertical grooves of the connecting pillars 102, the support blocks 103 and the conductive pillars 101 are placed alternately;

[0048] The second columns 2 are each provided with a fourth slot adapted to the support block 103, and the support block 103 is detachably connected to the fourth slot;

[0049] The support block 103 at one end of the internal heating mechanism 1 is detachably connected to the second column 2 on one of the transverse sealing mechanisms via a fourth slot, and the support block 103 at the other end of the internal heating mechanism 1 is detachably connected to the second column 2 on another transverse sealing mechanism via a fourth slot;

[0050] The internal heating mechanism 1 is arranged vertically with the transverse sealing mechanism;

[0051] The longitudinal closing mechanism comprises a plurality of first columns 8, longitudinal side plates 9 and first cushion blocks 7. A plurality of first columns 8 are arranged on one side of the bottom plate 5. A first cushion block 7 is arranged at the lower part of the first columns 8. Both sides of the bottom plate 5 are placed on the first cushion blocks 7. The first columns 8 adjacent to each other on the same side are connected through a longitudinal side plate 9. The first column 8 at one end of one longitudinal closing mechanism is connected to the first column 8 at one end of another longitudinal closing mechanism through a transverse closing mechanism. The first column 8 at the other end of one longitudinal closing mechanism is connected to the first column 8 at the other end of another longitudinal closing mechanism through another transverse closing mechanism.

[0052] The transverse closing mechanism comprises a second column 2, a transverse side plate 3 and a second cushion block 4. A plurality of second columns 2 are arranged between one end of one longitudinal closing mechanism and one end of another longitudinal closing mechanism. Adjacent second columns 2 are connected by one transverse side plate 3. The second columns 2 closest to the longitudinal closing mechanism are connected to the first columns 8 by another transverse side plate 3. The bottom of each second column 2 is provided with a second cushion block 4. Both sides of the bottom plate 5 are placed on the second cushion block 4.

[0053] The bottom plate 5 is provided with an opening 502 adapted to the first column 8, the second column 2 and the connecting column 102, which facilitates the first column 8, the second column 2 and the connecting column 102 to be inserted into the opening 502;

[0054] The bottom plate 5 is split into a plurality of bearing plates 503, each of which is provided with a bridging groove, and the bridging grooves on the bearing plates 503 cooperate with each other, so that one bearing plate 503 can be detachably connected to another bearing plate 503 through the bridging groove;

[0055] It also includes a third pad 6, and the third pad 6 is padded below the connection between the supporting plates 503, which is conducive to better suspending the bottom plate 5 and making the bottom plate 5 better carry the negative electrode material;

[0056] It also includes a sinking cover plate 10, and the sinking cover plate 10 is provided with arc grooves adapted to the first column 8 and the second column 2 on all sides. The sinking cover plate 10 is covered above the internal heating mechanism 1 and is slidably connected to the first column 8 and the second column 2;

[0057] The settlement cover plate 10 is divided into a plurality of equal-sized pressing plates 1001;

[0058] The longitudinal side plate 9 includes a plurality of conductive plates 91 of the same size. The first column 8 is provided with a first slot adapted to the conductive plates 91. The conductive plates 91 are inserted into the first slots one by one, and the conductive plates 91 overlap each other.

[0059] The transverse side panels 3 include a plurality of transverse panels 31 of the same size. Second slots matching the transverse panels 31 are provided on both sides of the second column 2. The transverse panels 31 are inserted into the second slots. A third slot is provided on the first column 8 closest to the transverse closing mechanism. The transverse side panels 3 at the two ends of the transverse closing mechanism are respectively connected to one of the first columns 8 through one of the third slots.

[0060] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description and the drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0061] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A frame-type graphitization box furnace, characterized in that: It comprises a bottom plate, a longitudinal sealing mechanism, a transverse sealing mechanism and an internal heating mechanism, wherein two sides of the bottom plate are oppositely provided with one longitudinal sealing mechanism, one end of one longitudinal sealing mechanism is connected to one end of another longitudinal sealing mechanism through one transverse sealing mechanism, and the other end of one longitudinal sealing mechanism is connected to the other end of another longitudinal sealing mechanism through another transverse sealing mechanism, and a plurality of internal heating mechanisms are arranged above the bottom plate along the direction of the transverse sealing mechanism, one transverse sealing mechanism is connected to another transverse sealing mechanism through the internal heating mechanism, and the transverse sealing mechanism is vertically arranged with the longitudinal sealing mechanism; The internal heating mechanism includes connecting columns and conductive components. Several groups of the conductive components are arranged above the bottom plate along the direction of the longitudinal closing mechanism. The conductive components are connected by the connecting columns. The connecting columns are pressed on the top surface of the bottom plate. The conductive components at the two ends of the internal heating mechanism are respectively connected to the transverse closing mechanism.

2. The frame-type graphitization box furnace according to claim 1, characterized in that: The conductive component includes a plurality of conductive columns and support blocks. The plurality of conductive columns are arranged from top to bottom above the base plate. A support block is arranged below each end of the conductive column. The lower portion of the support block is connected to the next conductive column. The support blocks at the bottom of the conductive component are pressed above the base plate, and the conductive columns are connected to adjacent connecting columns through the support blocks.

3. The frame-type graphitization box furnace according to claim 1, characterized in that: The longitudinal closing mechanism includes a plurality of first columns, longitudinal side plates and first pads, a plurality of first columns are arranged on one side of the base plate, a first pad is arranged at the lower part of the first column, both sides of the base plate are mounted on the first pads, adjacent first columns on the same side are connected through a longitudinal side plate, the first column at one end of one longitudinal closing mechanism is connected to the first column at one end of another longitudinal closing mechanism through a transverse closing mechanism, and the first column at the other end of one longitudinal closing mechanism is connected to the first column at the other end of another longitudinal closing mechanism through another transverse closing mechanism.

4. The frame-type graphitization box furnace according to claim 3, characterized in that: The transverse closing mechanism includes a second column, a transverse side plate and a second pad. A plurality of the second columns are arranged between one end of one longitudinal closing mechanism and one end of another longitudinal closing mechanism. Adjacent second columns are connected by a transverse side plate. The second columns closest to the longitudinal closing mechanism are connected to the first columns by another transverse side plate. A second pad is arranged at the bottom of each second column, and both sides of the bottom plate are placed on the second pad.

5. The frame-type graphitization box furnace according to claim 4, characterized in that: It also includes a settlement cover plate, which is provided with arc grooves matching the first column and the second column on all sides. The settlement cover plate is arranged above the internal heating mechanism and is slidably connected to the first column and the second column.

6. The frame-type graphitization box furnace according to claim 5, characterized in that: The settlement cover plate is divided into a plurality of equal-sized pressing plates.

7. The frame-type graphitization box furnace according to claim 3, characterized in that: The longitudinal side plate includes a plurality of conductive plates of the same size. The first column is provided with a first slot adapted to the conductive plate. The conductive plates are inserted into the first slot one by one, and the conductive plates are overlapped with each other.

8. The frame-type graphitization box furnace according to claim 4, characterized in that: The transverse side panels include a plurality of transverse panels of the same size, and second slots adapted to the transverse panels are provided on both sides of the second column, and the transverse panels are inserted into the second slots. A third slot is provided on the first column closest to the transverse closing mechanism, and the transverse side panels at the two ends of the transverse closing mechanism are respectively connected to one of the first columns through one of the third slots.