Staged high temperature graphitization furnace body structure

Abstract

This invention relates to the field of graphitization furnaces and discloses a staged variable-diameter high-temperature graphitization furnace body structure, including a furnace body with a cooling zone inside. A drive assembly is mounted on the furnace body to drive the rotation of second drive shafts on multiple sets of striking components. Each striking component includes a first bevel gear and a fixed rod. A second bevel gear is meshed with the side surface of the first bevel gear, and a first rotating shaft is fixedly connected to the inner surface of the second bevel gear. A turntable is fixedly connected to the upper surface of the first rotating shaft, and a guide groove is provided inside the fixed rod. This invention allows for convenient tapping and cleaning of the inner wall of the cooling zone without requiring operators to blindly judge the striking position by inserting a long tool from the bottom outlet of the furnace body. It also allows for tapping of multiple locations within the cooling zone, expanding the striking coverage area, and enables simultaneous tapping of multiple striking positions using only a single drive motor.

Description

Technical Field

[0001] This invention relates to the field of graphitization furnace technology, specifically to a graded variable diameter high-temperature graphitization furnace body structure. Background Technology

[0002] The graded variable diameter high-temperature graphitization furnace is a core thermal equipment used in the fields of new energy and carbon materials to achieve high-temperature graphitization of carbonaceous materials, such as lithium battery anode materials and chopped carbon fibers. The graphitization furnace body is arranged from top to bottom as follows: a heating zone at the top of the furnace body, a cooling zone in the middle or lower middle of the furnace body, and a variable diameter zone connecting the heating zone and the cooling zone. The heating zone has built-in induction heating coils or graphite heating elements to provide an ultra-high temperature environment of 2000-3200℃. The cooling zone uses inert gas heat exchange components to achieve gradient cooling of materials. The variable diameter zone guides the material to flow smoothly from the high-temperature heating zone to the low-temperature cooling zone through adaptive changes in cross-sectional size. To facilitate the maintenance of the heating zone, the top of the existing furnace body is usually designed as an openable top cover structure. The top cover and the furnace body flange are sealed with a graphite sealing ring to ensure the airtightness of the heating zone under normal conditions. When maintenance is required, the bolts can be removed to open the top cover.

[0003] Currently, after long-term continuous operation, the carbonaceous material in the staged variable diameter high-temperature graphitization furnace will produce a small amount of ash under the high temperature of the heating zone. At the same time, when the material flows in the variable diameter zone, it will produce fine carbon fragments due to collision and friction. These fragments will enter the cooling zone with the material. As the temperature of the cooling zone decreases and the material flow rate slows down, they will gradually adhere to the inner wall of the cooling zone. For the heating zone and variable diameter zone located at the top of the furnace, since they are equipped with an openable top cover, cleaning only requires stopping the furnace and removing the top cover. The fragments can be cleaned manually with the help of tools. However, the cooling zone is located in the middle or lower part of the furnace. When cleaning, the operator needs to insert a long rod tool through the discharge port at the bottom of the furnace for blind operation, resulting in low efficiency in cleaning the waste fragments on the inner wall of the cooling zone.

[0004] Therefore, the purpose of this invention is to provide a graded variable diameter high-temperature graphitization furnace body structure to overcome the shortcomings of the prior art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a graded variable diameter high-temperature graphitization furnace body structure, which solves the problem that the cooling zone is located in the middle or lower part of the furnace body, requiring operators to blindly operate by inserting a long rod through the bottom discharge port of the furnace body during cleaning, resulting in low efficiency in cleaning waste from the inner wall of the cooling zone.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a graded variable diameter high-temperature graphitization furnace structure, comprising a furnace body, wherein a cooling zone is provided inside the furnace body, and a driving assembly is provided on the furnace body. The driving assembly is used to drive the rotation of the second driving shaft on multiple sets of striking assemblies. The striking assembly includes a first bevel gear and a fixed rod. A second bevel gear is meshed with the side surface of the first bevel gear, and a first rotating shaft is fixedly connected to the inner surface of the second bevel gear. A turntable is fixedly connected to the upper surface of the first rotating shaft. A guide groove is provided inside the fixed rod, and a first fixed column is provided inside the guide groove. A striking block is fixedly connected to the side surface of the fixed rod via a moving rod. The striking block strikes the inner wall of the cooling zone. A second groove is provided inside the furnace body, and a second fixed column is fixedly connected to the bottom inner wall of the second groove. A collection assembly is provided inside the furnace body, which is used to collect the debris from the striking block. The collection assembly includes a collection pipe, and a pump body is fixedly connected to the end of the collection pipe away from the cooling zone.

[0007] Preferably, the drive assembly includes a drive motor, the output end of which is fixedly connected to a first pulley via a first drive shaft, a transmission belt is provided on the side surface of the first drive shaft, and a second pulley, a third pulley, and a fourth pulley are provided on the inner surface of the transmission belt. The inner surfaces of the second pulley, the third pulley, and the fourth pulley are all fixedly connected to the second drive shaft, and the side surface of the first drive shaft is fixedly connected to a first bevel gear.

[0008] Preferably, a second fixed seat and a third fixed seat are fixedly connected to the side surface of the furnace body. The rear surface of the second fixed seat is fixedly connected to the drive motor. A first support column is fixedly connected to the bottom inner wall of the second fixed seat. The first support column is fixedly connected to the first drive shaft through a second bearing. A second support column is fixedly connected to the bottom inner wall of the third fixed seat. The second support column is fixedly connected to the second drive shaft through a third bearing.

[0009] Preferably, the lower surface of the first fixed column is fixedly connected to the turntable, and the side surface of the moving rod is slidably connected to the second fixed column.

[0010] Preferably, a connecting pipe is fixedly connected to the output end of the pump body, and a collection box is fixedly connected to the end of the connecting pipe away from the pump body.

[0011] Preferably, the pump body and the collection box are both fixedly connected to the furnace body via a first fixed seat.

[0012] Preferably, the furnace body has a heating zone and a diameter-changing zone inside, a top cover is provided on the furnace body, a support frame is fixedly connected to the side surface of the furnace body, and a controller is provided on the side surface of the support frame.

[0013] Preferably, the first bevel gear, the second bevel gear, the first rotating shaft, the turntable, the fixed rod, the moving rod, and the striking block are all disposed inside the second groove.

[0014] Preferably, the furnace body has a first groove inside, and the inner surface of the first groove is fixedly connected to the collecting pipe.

[0015] Preferably, a connecting plate is fixedly connected to the side surface of the second fixed column, and the connecting plate is fixedly connected to the first rotating shaft through a first bearing.

[0016] This invention provides a graded, variable-diameter high-temperature graphitization furnace body structure. It has the following beneficial effects:

[0017] 1. This invention, through the setting of drive components, knocking components and other structures, can conveniently knock and clean the inner wall of the cooling zone. It eliminates the need for operators to blindly judge the knocking position by inserting a long rod tool from the bottom of the furnace outlet. The dust and debris adhering to the inner wall can be knocked off, and the knocked-off debris can be collected in time to avoid secondary scattering and pollution of the furnace environment or blockage of material channels. This structure reduces the labor intensity of operators, eliminating the need for long periods of bending over or reaching into tools, while improving the cleaning efficiency of waste debris on the inner wall of the cooling zone.

[0018] 2. This invention can simultaneously tap multiple inner walls of the cooling zone, and can also perform targeted tapping on inner walls at different heights of the cooling zone. This structural design expands the tapping coverage area, ensuring more comprehensive cleaning of the inner walls of the cooling zone and avoiding residual debris from affecting the graphitization quality and cooling efficiency of subsequent materials.

[0019] 3. This invention can achieve synchronous striking of multiple striking positions with only one drive motor, without the need to configure a separate drive motor for different striking positions. The power of a single drive motor can be accurately distributed to the striking components at different positions in the cooling zone. This structure saves the space occupied by the motor outside the furnace body and reduces the additional energy consumption caused by multiple motors running at the same time. Attached Figure Description

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second perspective structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the furnace body of the present invention;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0026] Figure 7 This is a schematic diagram of the first and second fixing bases of the present invention;

[0027] Figure 8 This is a schematic diagram of the drive component structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the striking component structure of the present invention.

[0029] The components include: 1. Furnace body; 2. Heating zone; 3. Variable diameter zone; 4. Cooling zone; 5. Drive assembly; 501. Drive motor; 502. First drive shaft; 503. First pulley; 504. Transmission belt; 505. Second pulley; 506. Third pulley; 507. Fourth pulley; 508. Second drive shaft; 6. Top cover; 7. Support frame; 8. Controller; 9. Striking assembly; 901. First bevel gear; 902. Second bevel gear; 903. First rotating shaft; 904. Turntable. ; 905, Fixed rod; 906, Guide groove; 907, Moving rod; 908, Striking block; 909, First fixed column; 10, Second fixed column; 11, Connecting plate; 12, First bearing; 13, Collection assembly; 1301, Collection pipe; 1302, Pump body; 1303, Connecting pipe; 1304, Collection box; 14, First groove; 15, First fixed seat; 16, Second fixed seat; 17, Third fixed seat; 18, First support column; 19, Second support column; 20, Second groove. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see the appendix Figure 1 - Appendix Figure 9This invention provides a graded variable diameter high-temperature graphitization furnace structure, including a furnace body 1. A cooling zone 4 is provided inside the furnace body 1. A drive assembly 5 is provided on the furnace body 1. The drive assembly 5 is used to drive the second drive shaft 508 on multiple sets of striking assemblies 9 to rotate. The drive assembly 5 includes a drive motor 501. The output end of the drive motor 501 is fixedly connected to a first pulley 503 through a first drive shaft 502. A transmission belt 504 is provided on the side surface of the first drive shaft 502. A second pulley 505, a third pulley 506, and a fourth pulley 507 are provided on the inner surface of the transmission belt 504. The inner surfaces of the second pulley 505, the third pulley 506, and the fourth pulley 507 are all fixedly connected to the second drive shaft 508. The side surface of the first drive shaft 502 is fixedly connected to a first bevel gear 901.

[0032] Power is output from a single drive motor 501, transmitted to the first pulley 503 via the first drive shaft 502, and then synchronously driven by the transmission belt 504 to rotate the second pulley 505, the third pulley 506, and the fourth pulley 507. This, in turn, drives multiple second drive shafts 508 to rotate synchronously. There is no need to configure a separate motor for each set of striking components 9. Power is output from a single drive motor 501, avoiding the problem of multiple motors occupying external space in the furnace body 1, and reducing the additional energy consumption of multiple motors operating simultaneously. The rotation of the second drive shafts 508, along with the multiple sets of striking components 9, allows for the striking and cleaning of different locations in the cooling zone 4. Operators do not need to blindly judge the striking location by inserting a long-handled tool from the bottom outlet of the furnace body 1; the dust and debris adhering to the inner wall can be knocked off. The drive components 5 and striking components 9 reduce the labor intensity of operators, eliminating the need for prolonged bending or reaching into tools, while simultaneously improving the cleaning efficiency of waste debris on the inner wall of the cooling zone 4.

[0033] A second fixed seat 16 and a third fixed seat 17 are fixedly connected to the side surface of the furnace body 1. The rear surface of the second fixed seat 16 is fixedly connected to the drive motor 501. A first support column 18 is fixedly connected to the bottom inner wall of the second fixed seat 16. The first support column 18 is fixedly connected to the first drive shaft 502 through a second bearing. A second support column 19 is fixedly connected to the bottom inner wall of the third fixed seat 17. The second support column 19 is fixedly connected to the second drive shaft 508 through a third bearing.

[0034] The second fixed seat 16 and the third fixed seat 17 are configured to support multiple sets of second drive shafts 508. Through the cooperation of the first support column 18 and the second bearing, it is ensured that the first drive shaft 502 has no radial movement when rotating at high speed, thereby ensuring the transmission stability of the first pulley 503 and the transmission belt 504. The rear end of the first drive shaft 502 is connected to the output end of the drive motor 501, the middle part is connected to the first support column 18 through the second bearing, and the front end passes through the inside of the furnace body 1. The first drive shaft 502 is supported by multiple points, thereby ensuring the stability of operation.

[0035] The second support column 19 on the third fixed base 17 ensures the coaxiality of multiple second drive shafts 508 when rotating synchronously, preventing deviations in the striking frequency and force of different striking components 9 due to shaft wobbling. The rear end of the second drive shaft 508 is fixedly connected to the third fixed base 17 via a fourth bearing, and the middle part of the second drive shaft 508 is connected to the third fixed base 17 via a second bearing and the second support column 19. The front end of the second drive shaft 508 passes through the interior of the furnace body 1, and is supported at multiple points to ensure operational stability. The rear end of the second drive shaft 508, which is at the same height as the first drive shaft 502, is fixedly connected to the second fixed base 16 via a third bearing, and the middle part is connected to the second fixed base 16 via a second bearing and the first support column 18. The front end passes through the interior of the furnace body 1, and is supported at multiple points to ensure operational stability.

[0036] The striking assembly 9 includes a first bevel gear 901 and a fixed rod 905. The side surface of the first bevel gear 901 is meshed with a second bevel gear 902. The inner surface of the second bevel gear 902 is fixedly connected to a first rotating shaft 903. The upper surface of the first rotating shaft 903 is fixedly connected to a turntable 904. The fixed rod 905 has a guide groove 906 inside. The guide groove 906 has a first fixed post 909 inside. The side surface of the fixed rod 905 is fixedly connected to a striking block 908 through a moving rod 907. The striking block 908 strikes the inner wall of the cooling zone 4. The lower surface of the first fixed post 909 is fixedly connected to the turntable 904.

[0037] The structure consisting of the first bevel gear 901, the second bevel gear 902, the fixed rod 905, the guide groove 906, the moving rod 907, and the first fixed column 909 enables the reciprocating striking of the striking block 908. This eliminates the need for operators to blindly insert long-handled tools from the bottom outlet of the furnace body 1 to determine the position; the controller 8 simply needs to activate the drive motor 501. This reduces the labor intensity of operators bending over and inserting tools. Furthermore, the striking frequency can be adjusted by the speed of the drive motor 501, ensuring effective shaking off of dust and debris. The speed adjustment of the drive motor 501 is existing technology and will not be elaborated upon here. Four sets of striking components 9 are symmetrically arranged vertically, allowing for targeted striking of the inner walls of the cooling zone 4 at different heights and positions. The multiple sets of striking components 9 expand the striking coverage area, ensuring more thorough cleaning of the inner walls of the cooling zone 4 and preventing residual debris from affecting the graphitization quality and cooling efficiency of subsequent materials.

[0038] The furnace body 1 has a second groove 20 inside, and a second fixed column 10 is fixedly connected to the bottom inner wall of the second groove 20. The side surface of the moving rod 907 is slidably connected to the second fixed column 10.

[0039] By opening second grooves 20 at different heights and circumferential positions on the inner wall of the cooling zone 4, multiple sets of striking components 9 can be accommodated respectively, ensuring that the installation of each set of striking components 9 does not interfere with each other. At the same time, the sliding cooperation between the second fixed post 10 and the moving rod 907 provides guidance for the reciprocating movement of the moving rod 907, preventing the moving rod 907 from deviating during the movement, and ensuring that the striking block 908 can accurately strike the dust accumulation area on one side of the inner wall of the cooling zone 4. The groove edge of the second groove 20 is rounded.

[0040] The first bevel gear 901, the second bevel gear 902, the first rotating shaft 903, the turntable 904, the fixed rod 905, the moving rod 907, and the striking block 908 are all located inside the second groove 20.

[0041] The first bevel gear 901, the second bevel gear 902, the first rotating shaft 903, the turntable 904, the fixed rod 905, the moving rod 907, and the striking block 908 are integrated inside the second groove 20 to form a modular design.

[0042] A connecting plate 11 is fixedly connected to the side surface of the second fixed column 10, and the connecting plate 11 is fixedly connected to the first rotating shaft 903 through the first bearing 12.

[0043] The connection plate 11 and the first bearing 12 work together to provide additional support for the first rotating shaft 903 when it drives the turntable 904 to rotate, reducing its radial movement and ensuring that the first rotating shaft 903 of the multiple sets of striking components 9 rotates at the same speed. This ensures that the striking frequency and force of the striking block 908 are synchronized, and avoids the accumulation of ash residue caused by insufficient force of a certain set of striking components 9. At the same time, the setting of the first bearing 12 can reduce the rotational friction of the first rotating shaft 903, improve the power transmission efficiency, and further reduce energy consumption. The middle part of the first rotating shaft 903 is connected to the furnace body 1 through the first bearing 12, the connection plate 11, and the second fixed column 10. The lower end of the first rotating shaft 903 is connected to the inner wall of the bottom of the second groove 20 through the fifth bearing, ensuring the stability of the operation of the first rotating shaft 903.

[0044] The furnace body 1 is equipped with a collection component 13, which is used to collect the debris of the striking block 908. The collection component 13 includes a collection pipe 1301. A pump body 1302 is fixedly connected to the end of the collection pipe 1301 away from the cooling zone 4. A connecting pipe 1303 is fixedly connected to the output end of the pump body 1302. A collection box 1304 is fixedly connected to the end of the connecting pipe 1303 away from the pump body 1302.

[0045] After the striking blocks 908 shake off the debris from the inner wall of the cooling zone 4, the pump 1302 starts to generate negative pressure, directly sucking in the debris through the collection pipe 1301, and then sending it to the collection box 1304 through the connecting pipe 1303, achieving simultaneous striking and collection. The arrangement of the collection pipes 1301 corresponds one-to-one with the position of the striking components 9, ensuring that the debris shaken off by each set of striking blocks 908 can be accurately collected. The multiple sets of collection pipes 1301 improve the thoroughness of cleaning. The collection pipes 1301 are made of 310S high-temperature resistant stainless steel, which is suitable for the environment after the gradient cooling of the cooling zone 4, and The inner wall of the pipe is passivated to reduce the adhesion of debris. To prevent the opening of the collection pipe 1301 from damaging the cooling zone 4 when not cleaning, and to prevent air from seeping in and causing material oxidation, a high-temperature solenoid valve is added to the end of the collection pipe 1301 near the pump body 1302. The high-temperature solenoid valve is electrically connected to the controller 8. During cleaning, the controller 8 opens the high-temperature solenoid valve and the pump body 1302 simultaneously. When not cleaning, the high-temperature solenoid valve is closed to ensure the airtightness of the cooling zone 4. The connection between the high-temperature solenoid valve and the collection pipe 1301 is a flange connection, and a graphite sealing ring is installed between the flanges for easy maintenance and replacement later.

[0046] The pump body 1302 and the collection box 1304 are both fixedly connected to the furnace body 1 through the first fixed seat 15. The furnace body 1 has a first groove 14 inside, and the inner surface of the first groove 14 is fixedly connected to the collection pipe 1301.

[0047] The design of the first fixed seat 15 and the first groove 14 enhances the stability of the collection component 13. The first fixed seat 15 can reduce the vibration transmission during the operation of the pump body 1302 and avoid vibration affecting the operating accuracy of other components inside the furnace body 1. The arc-shaped structure of the first groove 14 is adapted to the shape of the collection pipe 1301. The clamp fixation can ensure that the suction port of the collection pipe 1301 is always aligned with the debris falling area on the inner wall of the cooling zone 4, avoiding collection omissions caused by the offset of the collection pipe 1301.

[0048] The furnace body 1 has a heating zone 2 and a diameter-changing zone 3 inside. The furnace body 1 is equipped with a top cover 6. A support frame 7 is fixedly connected to the side surface of the furnace body 1. A controller 8 is installed on the side surface of the support frame 7.

[0049] Heating zone 2 is located at the top of furnace body 1, and its inner wall is lined with high-purity graphite composite plate to withstand ultra-high temperatures and avoid contaminating materials. Variable diameter zone 3 is located between heating zone 2 and cooling zone 4, and adopts a gradually expanding spiral structure. The inner wall of variable diameter zone 3 is also lined with graphite lining plates, and the surface of the lining plates is polished to a roughness Ra≤0.8μm to reduce material friction and adhesion. At the flange connection between the top of heating zone 2 and the top cover 6, in addition to the graphite sealing ring, a metal-clad gasket made of Inconel 600 is added to further improve airtightness at high temperatures and prevent inert gas leakage. Heating zone 2 and variable diameter zone 3 within the graphitization furnace body 1 are existing technologies. Support frame 7 provides stable support for furnace body 1. Controller 8 contains a PLC control system. The drive motor 501, pump body 1302, and high-temperature solenoid valve described in this application are all electrically connected to controller 8. Controlling the opening and closing of drive motor 501, pump body 1302, and high-temperature solenoid valve through the PLC control system is existing technology.

[0050] Working principle: When using this device, if the inner wall of the cooling zone 4 needs to be cleaned after long-term use, the drive motor 501 and the pump body 1302 are started simultaneously. The output end of the drive motor 501 rotates, driving the first drive shaft 502 and the first pulley 503 to rotate. The transmission belt 504 drives the second pulley 505, the third pulley 506, and the fourth pulley 507 to rotate, driving the second drive shaft 508 to rotate. The rotation of the first drive shaft 502 and the second drive shaft 508 drives the first bevel gear 901 to rotate. The first bevel gear 901 meshes with the second bevel gear 902. The rotation of the first bevel gear 901 drives the second bevel gear 902 and the first drive shaft 508 to rotate. Shaft 903, turntable 904 and first fixed column 909 rotate, the first fixed column 909 moves in guide groove 906, causing moving rod 907 and striking block 908 to reciprocate on second fixed column 10. The striking block 908 strikes the inner wall of furnace body 1, that is, the inner wall of cooling zone 4, causing the material adhering to the inner wall of cooling zone 4 to fall off. The fallen material enters collection box 1304 through collection pipe 1301 under the action of pump body 1302 and through connecting pipe 1303 for collection. The arrangement of multiple sets of second drive shafts 508 allows the striking block 908 to strike different positions and heights of cooling zone 4, increasing the coverage area of ​​the striking.

Claims

1. A graded variable diameter high-temperature graphitization furnace structure, comprising a furnace body (1), wherein a cooling zone (4) is provided inside the furnace body (1), characterized in that, The furnace body (1) is provided with a drive assembly (5), which is used to drive the second drive shaft (508) on multiple sets of striking assemblies (9) to rotate. The striking assembly (9) includes a first bevel gear (901) and a fixed rod (905). The side surface of the first bevel gear (901) is meshed with a second bevel gear (902). The inner surface of the second bevel gear (902) is fixedly connected with a first rotating shaft (903). The upper surface of the first rotating shaft (903) is fixedly connected with a turntable (904). The fixed rod (905) is provided with a guide groove (906). The guide groove (906) is provided with a first fixed column (909). The side surface of the fixed rod (905) is fixedly connected with a striking block (908) through a moving rod (907). The striking block (908) strikes the inner wall of the cooling zone (4). The furnace body (1) is provided with a second groove (20) inside. A second fixed column (10) is fixedly connected to the bottom inner wall of the second groove (20). The furnace body (1) is provided with a collection component (13) inside. The collection component (13) is used to collect the debris of the striking block (908). The collection component (13) includes a collection pipe (1301). A pump body (1302) is fixedly connected to one end of the collection pipe (1301) away from the cooling zone (4).

2. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The drive assembly (5) includes a drive motor (501). The output end of the drive motor (501) is fixedly connected to a first pulley (503) via a first drive shaft (502). A transmission belt (504) is provided on the side surface of the first drive shaft (502). A second pulley (505), a third pulley (506), and a fourth pulley (507) are provided on the inner surface of the transmission belt (504). The inner surfaces of the second pulley (505), the third pulley (506), and the fourth pulley (507) are all fixedly connected to a second drive shaft (508). The side surface of the first drive shaft (502) is fixedly connected to a first bevel gear (901).

3. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The side surface of the furnace body (1) is fixedly connected to a second fixed seat (16) and a third fixed seat (17). The rear surface of the second fixed seat (16) is fixedly connected to a drive motor (501). The bottom inner wall of the second fixed seat (16) is fixedly connected to a first support column (18). The first support column (18) is fixedly connected to a first drive shaft (502) through a second bearing. The bottom inner wall of the third fixed seat (17) is fixedly connected to a second support column (19). The second support column (19) is fixedly connected to a second drive shaft (508) through a third bearing.

4. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The lower surface of the first fixed column (909) is fixedly connected to the turntable (904), and the side surface of the moving rod (907) is slidably connected to the second fixed column (10).

5. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The output end of the pump body (1302) is fixedly connected to a connecting pipe (1303), and the end of the connecting pipe (1303) away from the pump body (1302) is fixedly connected to a collection box (1304).

6. The graded variable diameter high-temperature graphitization furnace body structure according to claim 5, characterized in that, The pump body (1302) and the collection box (1304) are both fixedly connected to the furnace body (1) through the first fixed seat (15).

7. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The furnace body (1) is provided with a heating zone (2) and a variable diameter zone (3) inside. The furnace body (1) is provided with a top cover (6). A support frame (7) is fixedly connected to the side surface of the furnace body (1). A controller (8) is provided on the side surface of the support frame (7).

8. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The first bevel gear (901), the second bevel gear (902), the first rotating shaft (903), the turntable (904), the fixed rod (905), the moving rod (907), and the striking block (908) are all located inside the second groove (20).

9. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, The furnace body (1) has a first groove (14) inside, and the inner surface of the first groove (14) is fixedly connected to the collection pipe (1301).

10. The graded variable diameter high-temperature graphitization furnace body structure according to claim 1, characterized in that, A connecting plate (11) is fixedly connected to the side surface of the second fixed column (10), and the connecting plate (11) is fixedly connected to the first rotating shaft (903) through the first bearing (12).

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