Continuous graphitization furnace for graphite cathode material

Abstract

The utility model discloses a graphite cathode material continuous graphitization furnace, which belongs to the technical field of graphitization furnaces, and comprises a continuous graphitization furnace main body arranged on the ground, an upper hot air pipe communicated with the interior of the continuous graphitization furnace main body is fixedly connected to the upper part of the outer side wall of the continuous graphitization furnace main body, and a lower hot air pipe communicated with the interior of the continuous graphitization furnace main body is fixedly connected to the lower part of the outer side wall of the continuous graphitization furnace main body; a lower hot air coil pipe is fixedly connected to the lower part of the outer side wall of the continuous graphitization furnace main body; a hot air purification mechanism is assembled between the upper hot air pipe and the lower hot air coil pipe; the hot gas waste heat recycling mechanism and the hot gas purifying mechanism are arranged on the outer side of the continuous graphitization furnace body and are integrated with the continuous graphitization furnace body, the occupied area of the continuous graphitization furnace is reduced, meanwhile, the waste heat recycling mechanism has the functions of water circulation and cooling liquid circulation at the same time, waste heat utilization can be achieved, and the continuous graphitization furnace is energy-saving and environment-friendly. In addition, the cooling speed can be increased during discharging waiting, and the continuous production efficiency of the graphitization furnace is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphitization furnaces, and in particular relates to a continuous graphitization furnace for graphite negative electrode materials. Background Art

[0002] A graphitization furnace refers to a furnace for producing graphitized products and is widely used in the processing of graphite negative electrode materials.

[0003] Chinese Patent No. 202123081295.4 discloses a graphitization furnace for producing artificial graphite negative electrode materials, which is composed of a base plate placed on the ground, a furnace body installed on one side of the top of the base plate, a water tank and a purification box installed on the other side of the top of the base plate and arranged from top to bottom, a hot air intake mechanism installed between the furnace body and the water tank and with the air outlet end extending into the purification box, a water temperature detection mechanism and a water inlet and outlet mechanism installed in the water tank, and a purification mechanism, an exhaust mechanism and a drainage mechanism installed in the purification box. During the use of the graphitization furnace, the exhausted hot air enters the water tank through the hot air intake mechanism, exchanges heat with the water in the water tank to realize waste heat utilization, the hot air after heat exchange is purified by the purification mechanism in the purification box and then discharged through the exhaust mechanism, the water generated during the heat exchange process is discharged through the drainage mechanism, the water temperature detection mechanism monitors the water temperature in the water tank in real time, and when it reaches the set value, it is discharged through the water outlet mechanism, and then water is taken in through the water inlet mechanism, and this reciprocating process is used to realize waste heat utilization of the graphitization furnace.

[0004] The inventors of the present application have discovered that the waste heat utilization mechanism and purification mechanism of the existing graphitization furnace for producing graphite negative electrode materials are independent of the furnace body and have many structures, resulting in a large footprint. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a continuous graphitization furnace for graphite negative electrode materials, which has the characteristics of reducing the floor space, ensuring the waste heat recovery efficiency and improving the continuous production efficiency of the graphitization furnace.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous graphitization furnace for graphite negative electrode materials, comprising: a continuous graphitization furnace main body arranged on the ground, an upper hot air pipe connected to the interior of the continuous graphitization furnace main body is fixedly connected to the outer wall of the continuous graphitization furnace main body at the top, a lower hot air coil is fixedly connected to the outer wall of the continuous graphitization furnace main body at the bottom, a hot air purification mechanism is arranged between the upper hot air pipe and the lower hot air coil, an outer shell mechanism is connected to the outer wall of the continuous graphitization furnace main body at the outer side of the upper hot air pipe, the hot air purification mechanism and the lower hot air coil, a water storage chamber is formed between the outer shell mechanism and the continuous graphitization furnace main body, one end of the lower hot air coil away from the hot air purification mechanism passes through the outer shell mechanism and extends to the outside, and the outer shell mechanism passes through the section A sealing ring is fixedly connected to the inner wall, and the inner wall of the sealing ring abuts against the outer wall of the lower hot air coil. A liquid inlet pipe connected to the water storage chamber is fixedly connected to the upper side of one side of the outer shell mechanism, and a liquid outlet pipe connected to the water storage chamber is fixedly connected to the lower side of the other side of the outer shell mechanism. An electric three-way valve is fixedly connected to the end of the liquid inlet pipe and the liquid outlet pipe away from the outer shell mechanism respectively, and the other two valve ports of the electric three-way valve are fixedly connected to the first connecting pipe and the second connecting pipe respectively. The outer side wall of the continuous graphitization furnace body is located below the outer shell mechanism and is fixedly connected to a lower fixed ring plate. An assembly groove is opened at the top of the lower fixed ring plate. A programmable controller is fixedly connected to the inside of the assembly groove. The area of ​​the assembly groove is larger than that of the programmable controller. The continuous graphitization furnace body and the electric three-way valve are electrically connected to the programmable controller.

[0007] Furthermore, the hot air purification mechanism includes a filter shell connected between the upper hot air pipe and the lower hot air coil by bolts, a filter frame is fixedly connected to the inside of the filter shell near the upper hot air pipe side, and an activated carbon frame is fixedly connected to the inside of the filter shell near the lower hot air coil side.

[0008] Furthermore, the outer shell mechanism includes two shells symmetrically arranged outside the upper hot air pipe, the filter shell and the lower hot air coil, a water storage chamber is formed between the two shells and the main body of the continuous graphitization furnace, the lower hot air coil is away from the filter shell and passes through a side shell to extend to the outside, a sealing ring is fixedly connected to the inner wall of the penetration section of the side shell, the liquid inlet pipe is fixedly connected to the upper part of one side shell, the liquid outlet pipe is fixedly connected to the lower part of the other side shell, and the lower fixed ring plate is fixedly connected to the bottom of the two shells, and a moving drive mechanism for driving the two shells to move in reverse is installed between the two shells and the main body of the continuous graphitization furnace, and the moving drive mechanism is electrically connected to the programmable controller.

[0009] Furthermore, the mobile driving mechanism includes an upper fixed ring plate fixedly connected to the outer wall of the continuous graphitization furnace body and located above the two shells, an outer gear ring connected to the outer wall of the continuous graphitization furnace body and located above the upper fixed ring plate through a bearing, and four movable blocks symmetrically fixed to the top and bottom ends of the two shells, the bottom end of the upper fixed ring plate is fixedly connected to a motor, the motor output shaft passes through the upper fixed ring plate and extends to the top and is fixedly sleeved with a first gear meshing with the outer gear ring, the upper fixed ring plate and the lower fixed ring plate are respectively provided with movable grooves at the positions corresponding to the four movable blocks, the four movable blocks are respectively extended into the corresponding movable grooves, one side wall of the two upper movable grooves is respectively fixedly connected with a connecting block, the connecting block is fixedly connected with a rack away from the side wall of the movable block, the upper fixed ring plate is connected to two connecting shafts through a bearing, the connecting shaft is fixedly sleeved with a second gear meshing with the outer gear ring and a third gear meshing with the corresponding rack from top to bottom, and the motor is electrically connected to the programmable controller.

[0010] Furthermore, a connecting rod is fixedly connected inside the movable groove, and the movable block is movably connected to the connecting rod by means of an open hole sleeve connection.

[0011] Furthermore, a sealing gasket is fixedly connected to the shell near the side wall of the continuous graphitization furnace body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges the hot gas waste heat recovery mechanism and the hot gas purification mechanism outside the continuous graphitization furnace body, so that they are integrated with the continuous graphitization furnace body, reducing the footprint of the continuous graphitization furnace. At the same time, the waste heat recovery mechanism has the functions of simultaneous water circulation and coolant circulation, which can not only realize the waste heat utilization, but also speed up the cooling speed when waiting for discharge, thereby improving the continuous production efficiency of the graphitization furnace.

[0014] 2. The utility model is provided with two movable shells, which can not only realize the waste heat utilization and cooling functions, but also can be moved and opened, so as to facilitate the maintenance or overhaul of the internal structure and extend the service life of the continuous graphitization furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a partial vertical section view of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a partial cross-sectional view of the utility model;

[0019] In the figure: 1. main body of continuous graphitization furnace; 2. outer gear ring; 3. upper fixed ring plate; 4. shell; 5. lower fixed ring plate; 6. programmable controller; 7. assembly groove; 8. sealing gasket; 9. motor; 10. first gear; 11. lower hot air coil; 12. liquid outlet pipe; 13. rack; 14. second gear; 15. connecting shaft; 16. third gear; 17. connecting rod; 18. first connecting pipe; 19. electric three-way valve; 20. second connecting pipe; 21. liquid inlet pipe; 22. upper hot air pipe; 23. filter shell; 24. movable block; 25. movable groove; 26. connecting block; 27. activated carbon frame; 28. filter frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1-4The utility model provides the following technical solutions: a continuous graphitization furnace for graphite negative electrode materials, comprising: a continuous graphitization furnace main body 1 arranged on the ground, an upper hot air pipe 22 connected to the inside of the continuous graphitization furnace main body 1 is fixedly connected to the outer wall of the continuous graphitization furnace main body 1 at the top, a lower hot air coil 11 is fixedly connected to the outer wall of the continuous graphitization furnace main body 1 at the bottom, a hot air purification mechanism is installed between the upper hot air pipe 22 and the lower hot air coil 11, an outer shell mechanism is connected to the outer wall of the continuous graphitization furnace main body 1 at the outer side of the upper hot air pipe 22, the hot air purification mechanism and the lower hot air coil 11, a water storage cavity is formed between the outer shell mechanism and the continuous graphitization furnace main body 1, and the lower hot air coil 11 is away from the heat One end of the air purification mechanism passes through the outer shell mechanism and extends to the outside. A sealing ring is fixedly connected to the inner wall of the penetration section of the outer shell mechanism. The inner wall of the sealing ring abuts against the outer wall of the lower hot gas coil 11. A liquid inlet pipe 21 connected to the water storage chamber is fixedly connected to the upper side of one side of the outer shell mechanism. A liquid outlet pipe 12 connected to the water storage chamber is fixedly connected to the lower side of the other side of the outer shell mechanism. An electric three-way valve 19 with a model of VC4011MH6000TV is fixedly connected to the end of the liquid inlet pipe 21 and the liquid outlet pipe 12 away from the outer shell mechanism. The other two valve ports of the electric three-way valve 19 are fixedly connected to a first connecting pipe 18 and a second connecting pipe 20 respectively. The two first connecting pipes 18 are connected to the water circulation supply mechanism. The water circulation supply The mechanism consists of a water tank, a first water pump, a first water pipe, a second water pipe and a temperature sensor. The water tank is connected to the first water pump, the first water pump is connected to the first water pipe, the water tank is connected to the second water pipe, the first water pipe and the second water pipe are connected to two first connecting pipes 18 respectively, a temperature sensor is fixed in the water tank, the water tank is connected to the water storage mechanism, the water storage mechanism is connected to the second water pump and the water storage tank, the water tank is connected to the second water pump, the second water pump is connected to the water storage tank, the water tank is connected to the water replenishment mechanism, the water replenishment mechanism is composed of a water inlet tank and a third water pump, the third water pump is connected to the water inlet tank and the water tank respectively, the two second connecting pipes 20 are connected to the coolant circulation supply mechanism, the coolant circulation supply mechanism is composed of a coolant The continuous graphitization furnace body 1 is composed of a cooling liquid tank, a refrigerator, a fourth water pump, a third water pipe and a fourth water pipe. The cooling liquid tank is connected to the fourth water pump, the fourth water pump is connected to the third water pipe, the fourth water pipe is connected to the cooling liquid tank, the third water pipe and the fourth water pipe are respectively connected to two second connecting pipes 20, and a refrigerator is fixedly connected in the cooling liquid tank. The outer side wall of the continuous graphitization furnace body 1 is located below the outer shell mechanism and is fixedly connected to a lower fixed ring plate 5. An assembly groove 7 is provided at the top of the lower fixed ring plate 5. A programmable controller 6 with a model of VH-24MR is fixedly connected inside the assembly groove 7. The area of ​​the assembly groove 7 is larger than that of the programmable controller 6. The continuous graphitization furnace body 1 and the electric three-way valve 19 are electrically connected to the programmable controller 6.

[0023] See attached Figure 1-4During the use of the continuous graphitization furnace for graphite negative electrode materials, the hot air generated enters the hot air purification mechanism through the upper hot air pipe 22 for purification, and the purified hot air is discharged through the lower hot air coil 11. During this process, the first water pump of the water circulation supply mechanism is started, and the water in the water tank is introduced into the first connecting pipe 18 of the liquid inlet pipe 21 through the first water pipe, and then introduced into the water storage cavity formed between the outer shell mechanism and the main body 1 of the continuous graphitization furnace through the electric three-way valve 19 and the liquid inlet pipe 21, and then flows back to the second water pipe through the first connecting pipe 18 of the liquid outlet pipe 12, and then flows back to the water tank through the second water pipe to realize the water circulation in the water storage cavity. During the water circulation process, heat exchange is carried out with the hot air in the lower hot air coil 11 to heat the water. The temperature sensor monitors the water temperature in the water tank in real time until it reaches the set value, and the water in the water tank is introduced into the water storage tank through the second water pump of the water storage mechanism to wait for use, and then the inlet water is replenished by the third water pump of the water replenishment mechanism. The water in the box is introduced into the water tank, and is heated by utilizing the waste heat according to the above method, and the cycle is repeated to realize the waste heat utilization of the continuous graphitization furnace; during the discharge waiting process of the continuous graphitization furnace of the graphite negative electrode material, the two electric three-way valves 19 are controlled by the programmable controller 6 to switch to the two second connecting pipes 20 to be connected, the coolant circulation supply mechanism is started, and the fourth water pump introduces the coolant refrigerated by the refrigerator in the coolant tank through the third water pipe into the second connecting pipe 20 of the liquid inlet pipe 21, and then introduces it into the water storage cavity formed between the outer shell mechanism and the continuous graphitization furnace body 1 through the electric three-way valve 19 and the liquid inlet pipe 21, and then flows back to the fourth water pipe through the first connecting pipe 18 of the liquid outlet pipe 12, and then flows back to the coolant tank by the fourth water pipe, so as to realize the circulation of the coolant in the water storage cavity, and the circulating coolant can take away the heat of the continuous graphitization furnace body 1, accelerate the cooling speed of the continuous graphitization furnace body 1, that is, accelerate the discharge speed of the continuous graphitization furnace.

[0024] Specifically, the hot air purification mechanism includes a filter shell 23 connected between the upper hot air pipe 22 and the lower hot air coil 11 by bolts, and a filter frame 28 is fixedly connected to the filter shell 23 near the upper hot air pipe 22 side, and the filter frame 28 is composed of a first ring frame fixedly connected to the inner wall of the filter shell 23 and a filter screen fixedly connected to the first ring frame. An activated carbon frame 27 is fixedly connected to the filter shell 23 near the lower hot air coil 11 side, and the activated carbon frame 27 is composed of a second ring frame fixedly connected to the inner wall of the filter shell 23 and an activated carbon cloth fixedly connected to the second ring frame.

[0025] See attached Figure 3-4 The hot air purification mechanism achieves hot air purification by filtering impurities in the hot air through the filter frame 28 and absorbing odors in the hot air through the activated carbon frame 27.

[0026] Embodiment 2

[0027] The difference between this embodiment and the first embodiment is that:

[0028] Specifically, the outer shell mechanism includes two shells 4 symmetrically arranged outside the upper hot air pipe 22, the filter shell 23 and the lower hot air coil 11, a water storage chamber is formed between the two shells 4 and the continuous graphitization furnace main body 1, the lower hot air coil 11 is away from the filter shell 23, one end passes through the side shell 4 and extends to the outside, a sealing ring is fixedly connected to the inner wall of the penetration section of the side shell 4, the liquid inlet pipe 21 is fixedly connected to the upper side of the one side shell 4, the liquid outlet pipe 12 is fixedly connected to the lower side of the other side shell 4, the lower fixed ring plate 5 is fixedly connected to the lower part of the two shells 4, and a moving drive mechanism for driving the two shells 4 to move in reverse is installed between the two shells 4 and the continuous graphitization furnace main body 1, and the moving drive mechanism is electrically connected to the programmable controller 6.

[0029] See attached Figure 1-3 When the graphite negative electrode material continuous graphitization furnace is not in use, the programmable controller 6 controls the mobile drive mechanism to start, and the mobile drive mechanism drives the two shells 4 to move in the opposite direction and open (the shell 4 close to the lower hot gas coil 11 moves on the lower hot gas coil 11), which is convenient for maintenance or overhaul of the internal upper hot gas pipe 22, the hot gas purification mechanism and the lower hot gas coil 11.

[0030] Specifically, the mobile driving mechanism includes an upper fixed ring plate 3 fixedly connected to the outer wall of the continuous graphitization furnace body 1 and located above the two shells 4, an outer gear ring 2 connected to the outer wall of the continuous graphitization furnace body 1 and located above the upper fixed ring plate 3 through a bearing, and four movable blocks 24 symmetrically fixed to the top and bottom ends of the two shells 4. A motor 9 with a model number of 5IK90RGU-CF is fixedly connected to the bottom end of the upper fixed ring plate 3. The output shaft of the motor 9 passes through the upper fixed ring plate 3 and extends to the top and is fixedly sleeved with a first gear 10 meshing with the outer gear ring 2. The upper fixed ring plate 3 and the lower fixed ring Active grooves 25 are respectively opened on the plate 5 at the positions corresponding to the four active blocks 24, and the four active blocks 24 extend into the corresponding active grooves 25 respectively. A connecting block 26 is fixedly connected to one side wall of the two upper active grooves 25 respectively, and a rack 13 is fixedly connected to the connecting block 26 away from the side wall of the active block 24. Two connecting shafts 15 are connected to the upper fixed ring plate 3 through bearings, and the connecting shafts 15 are fixedly sleeved with a second gear 14 meshing with the outer gear ring 2 and a third gear 16 meshing with the corresponding rack 13 from top to bottom, and the motor 9 is electrically connected to the programmable controller 6.

[0031] See attached Figure 1-3The mobile driving mechanism is started by controlling the motor 9 through the programmable controller 6. The motor 9 drives the output shaft to rotate forward or reversely, drives the first gear 10 to rotate forward or reversely, drives the outer gear ring 2 to rotate forward or reversely, drives the two second gears 14 to rotate forward or reversely, drives the two connecting shafts 15 to rotate forward or reversely, drives the two third gears 16 to rotate forward or reversely, drives the two racks 13 to move away from or close to each other, drives the two connecting blocks 26 to move in the same direction, drives the two movable blocks 24 to move in the same direction, drives the two shells 4 to move in the same direction, and realizes the mobile driving function of the two shells 4.

[0032] Specifically, a connecting rod 17 is fixedly connected inside the movable groove 25 , and the movable block 24 is movably connected to the connecting rod 17 by means of an open hole sleeve connection.

[0033] See attached Figure 3 The movable block 24 moves on the connecting rod 17 to improve the movement stability.

[0034] Specifically, a sealing gasket 8 is fixedly connected to the shell 4 close to the side wall of the continuous graphitization furnace body 1 .

[0035] See attached Figure 1 The sealing gasket 8 can improve the sealing performance between the shell 4 and the continuous graphitization furnace body 1 and the two shells 4 to prevent water or coolant leakage.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous graphitization furnace for graphite negative electrode materials, characterized in that: include: A continuous graphitization furnace body (1) is arranged on the ground, an upper hot air pipe (22) connected to the interior of the continuous graphitization furnace body (1) is fixedly connected to the outer wall of the continuous graphitization furnace body (1) at the top, and a lower hot air coil (11) is fixedly connected to the outer wall of the continuous graphitization furnace body (1) at the bottom, a hot air purification mechanism is arranged between the upper hot air pipe (22) and the lower hot air coil (11), the outer wall of the continuous graphitization furnace body (1) is connected to an outer shell mechanism outside the upper hot air pipe (22), the hot air purification mechanism and the lower hot air coil (11), a water storage chamber is formed between the outer shell mechanism and the continuous graphitization furnace body (1), one end of the lower hot air coil (11) away from the hot air purification mechanism passes through the outer shell mechanism and extends to the outside, a sealing ring is fixedly connected to the inner wall of the penetration section of the outer shell mechanism, the inner wall of the sealing ring abuts against the outer wall of the lower hot air coil (11), and the outer shell mechanism is connected to the outer wall of the lower hot air coil (11). A liquid inlet pipe (21) communicating with the water storage chamber is fixedly connected to the upper side of one side of the shell mechanism, and a liquid outlet pipe (12) communicating with the water storage chamber is fixedly connected to the lower side of the other side of the shell mechanism. An electric three-way valve (19) is fixedly connected to the ends of the liquid inlet pipe (21) and the liquid outlet pipe (12) away from the shell mechanism respectively. The other two valve ports of the electric three-way valve (19) are fixedly connected to a first connecting pipe (18) and a second connecting pipe (20) respectively. A lower fixed ring plate (5) is fixedly connected to the outer side wall of the continuous graphitization furnace body (1) below the shell mechanism. An assembly groove (7) is provided at the top of the lower fixed ring plate (5). A programmable controller (6) is fixedly connected to the assembly groove (7). The area of ​​the assembly groove (7) is larger than that of the programmable controller (6). The continuous graphitization furnace body (1) and the electric three-way valve (19) are electrically connected to the programmable controller (6).

2. A continuous graphitization furnace for graphite negative electrode materials according to claim 1, characterized in that: The hot air purification mechanism comprises a filter housing (23) connected between an upper hot air pipe (22) and a lower hot air coil (11) by means of bolts, a filter frame (28) being fixedly connected inside the filter housing (23) on a side close to the upper hot air pipe (22), and an activated carbon frame (27) being fixedly connected inside the filter housing (23) on a side close to the lower hot air coil (11).

3. A continuous graphitization furnace for graphite negative electrode materials according to claim 2, characterized in that: The outer shell mechanism comprises two shells (4) symmetrically arranged outside the upper hot air pipe (22), the filter shell (23) and the lower hot air coil (11); a water storage chamber is formed between the two shells (4) and the main body (1) of the continuous graphitization furnace; one end of the lower hot air coil (11) away from the filter shell (23) passes through a side shell (4) and extends to the outside; a sealing ring is fixedly connected to the inner wall of the penetration section of the side shell (4); a liquid inlet pipe (21) is fixedly connected to the upper side of the one side shell (4); a liquid outlet pipe (12) is fixedly connected to the lower side of the other side shell (4); a lower fixed ring plate (5) is fixedly connected to the lower side of the two shells (4); a moving drive mechanism for driving the two shells (4) to move in opposite directions is installed between the two shells (4) and the main body (1) of the continuous graphitization furnace; and the moving drive mechanism is electrically connected to a programmable controller (6).

4. A continuous graphitization furnace for graphite negative electrode materials according to claim 3, characterized in that: The mobile drive mechanism comprises an upper fixed ring plate (3) fixedly connected to the outer wall of the continuous graphitization furnace body (1) and located above the two shells (4), an outer toothed ring (2) connected to the outer wall of the continuous graphitization furnace body (1) and located above the upper fixed ring plate (3) through a bearing, and four movable blocks (24) symmetrically fixedly connected to the top and bottom ends of the two shells (4), the lower end of the upper fixed ring plate (3) is fixedly connected to a motor (9), the output shaft of the motor (9) passes through the upper fixed ring plate (3) and extends to the upper part and is fixedly sleeved with a first gear (10) meshingly connected to the outer toothed ring (2), and the four movable blocks (24) on the upper fixed ring plate (3) and the lower fixed ring plate (5) are respectively Active grooves (25) are respectively provided at the positions of the upper and lower fixed ring plates (24), and four active blocks (24) extend into the corresponding active grooves (25) respectively. A connecting block (26) is fixedly connected to one side wall of the upper two active grooves (25), and a rack (13) is fixedly connected to the connecting block (26) away from the side wall of the active block (24). Two connecting shafts (15) are connected to the upper fixed ring plate (3) through bearings, and a second gear (14) meshing with the outer gear ring (2) and a third gear (16) meshing with the corresponding rack (13) are fixedly sleeved on the connecting shaft (15) in sequence from top to bottom. The motor (9) is electrically connected to the programmable controller (6).

5. A continuous graphitization furnace for graphite negative electrode materials according to claim 4, characterized in that: A connecting rod (17) is fixedly connected inside the movable groove (25), and the movable block (24) is movably connected to the connecting rod (17) by means of an open hole sleeve connection.

6. The continuous graphitization furnace for graphite negative electrode materials according to claim 3, characterized in that: The shell (4) is fixedly connected with a sealing gasket (8) close to the side wall of the continuous graphitization furnace body (1).

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