A production process for graphitizing negative electrode materials for new energy batteries

Abstract

The present invention belongs to the technical field of battery negative electrode material processing, and in particular to a production process for graphitizing negative electrode materials for new energy batteries. The invention aims to solve the problem that the graphitization process of negative electrode materials is affected by factors such as raw materials and temperature, and improper control can easily cause safety accidents such as "furnace spraying", endangering the safety of people, factory buildings and equipment. At the same time, considering that the cost, purity and efficiency of graphitization production are closely related to power consumption, auxiliary material consumption, furnace loading and unloading, etc., the development of a graphitization process for negative electrode materials has become a technical problem that needs to be solved urgently. The following scheme is proposed: S1: conducting production experiments with three furnace loading forms to study the influence of heating curves on product performance, energy consumption and safety; S2: studying the influence of furnace loading details on product performance, energy consumption and safety, etc. Through experimental research, the graphitization production process of negative electrode materials is straightened out, the safety of graphitization production of negative electrode materials and product quality are ensured, the unit energy consumption and cost are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery negative electrode material processing, and in particular to a production process for graphitizing negative electrode materials for new energy batteries. Background Art

[0002] Currently, lithium batteries are predominantly used in new energy vehicles, chemical power storage, and consumer electronics. Artificial graphite is a widely used negative electrode material for lithium batteries, accounting for approximately 85% of negative electrode material shipments. Graphitization involves heating non-graphite carbon to temperatures exceeding 2000°C in an airtight furnace. This physical transformation transforms the hexagonal carbon atoms into a three-dimensional, regularly ordered structure, similar to graphite.

[0003] Graphitization is a key process in producing artificial graphite anode materials. Graphitized graphite anode materials exhibit higher conductivity, improved stability, and cycle life. Improved conductivity can increase battery output power and charge / discharge efficiency; improved stability can reduce the battery's internal resistance and the risk of thermal runaway; and improved cycle life can extend the battery's service life.

[0004] There are many factors that affect the graphitization of negative electrode materials, such as raw materials, temperature, heating time, etc. Improper control during the graphitization of negative electrode materials can cause "furnace blowout" and other safety accidents that endanger people, factories, and equipment. In addition, the cost, purity, and efficiency of negative electrode material graphitization production are closely related to production links such as power consumption, auxiliary material consumption, furnace loading, and furnace unloading.

[0005] Therefore, developing a graphitization process for negative electrode materials has become an urgent problem to be solved in the graphitization production of negative electrode materials in order to improve the performance characteristics of negative electrode materials, reduce production costs, and ensure production safety.

[0006] In addition, the existing graphitization furnace requires manual loading and unloading during use. Due to the high temperature in the furnace, it is inconvenient to remove the materials. The crucible can only be taken out after the temperature drops, which reduces the processing efficiency. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a production process for graphitizing negative electrode materials for new energy batteries.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A production process for graphitizing negative electrode materials for new energy batteries, comprising the following steps:

[0010] S1. Conduct production experiments using different loading methods, namely, stacked graphite paper loading, crucible loading, and box plate loading. Study the effects of different heating curves on product particle size, graphitization degree, specific surface area, and tap density performance parameters, as well as energy consumption and safety issues, for each loading method.

[0011] S2. Study the effects of the furnace core, placement of resistor materials, thickness and particle size of insulation materials on product particle size, graphitization degree, specific surface area and tap density performance parameters under different furnace loading forms, as well as energy consumption and safety issues;

[0012] S3. Study the effects of different cooling times on product performance, production efficiency and furnace safety under different furnace types;

[0013] S4. Design the product discharge equipment system and conduct experiments in the production system.

[0014] The crucible loading furnace in S1 adopts a high-temperature graphitization furnace, which includes a graphitization furnace, a furnace cover for sealing the graphitization furnace is slidably provided on one side of the graphitization furnace, a sliding plate is slidably provided in the graphitization furnace, and the other end of the sliding plate is fixedly connected to the furnace cover to form a bracket for supporting the crucible;

[0015] A placement plate, which is slidably arranged on one side of the graphitization furnace and is used in conjunction with two clamping plates to place replacement crucibles. Positioning grooves for positioning the crucibles are provided on the tops of the placement plate and the sliding plate;

[0016] A first sliding frame is provided on the top of the graphitization furnace for sliding movement, and the bottom of one end of the first sliding frame is fixedly provided on the furnace cover. A second sliding frame slides below the first sliding frame, and the bottom of the second sliding frame is provided with two clamping plates for clamping multiple crucibles at the same time, and can drive the crucibles out of the positioning grooves after clamping. A dual-axis motor is provided below the second sliding frame, and the output end of the dual-axis motor is connected to the clamping plates to provide clamping power thereto, and can move to the graphitization furnace after the two clamping plates move away from each other.

[0017] The positioning mechanism is arranged below the first sliding frame and is used in conjunction with the second sliding frame to limit the position of the first sliding frame.

[0018] In a possible design, two groups of guide columns are provided for sliding through the top of the first sliding frame, and the bottom of each group of guide columns is fixed with the same guide rail, the second sliding frame is slidably sleeved on the two guide rails, and a plurality of first fixed blocks are fixedly provided at the bottom of the second sliding frame, and a first rotating shaft and a second rotating shaft are rotatably provided through one side of the plurality of first fixed blocks, the dual-axis motor is fixedly provided on one side of one of the first fixed blocks, and its output end is fixedly connected to the second rotating shaft, the outer walls of the first rotating shaft and the second rotating shaft are fixedly sleeved with two rotating bars, the splint is fixedly provided on one side of the two rotating bars on the same side, and the other output end of the dual-axis motor is fixedly provided with a third rotating shaft, and the outer walls of the third rotating shaft and the first rotating shaft are fixedly sleeved with meshing gears.

[0019] In a possible design, a fixed plate and a sliding block are fixedly provided at the bottom of the first sliding frame, the fixed plate is fixedly provided on the furnace cover, and the sliding block is slidably provided on the top of the graphitization furnace, and an extension bar is fixedly provided on the side of the fixed plate and the sliding block close to each other, and the outer walls of the second rotating shaft and the third rotating shaft are fixedly sleeved with cams used in conjunction with the extension bar. During their rotation, the second sliding frame can be driven to move upward by the cam and the extension bar, thereby driving the crucible out of the positioning groove.

[0020] In a possible design, a rubber pad used in conjunction with the crucible is fixedly provided on the inner side of the clamping plate.

[0021] In one possible design, the positioning mechanism includes an extension block fixedly arranged on one side of the second sliding frame, a first insertion rod is fixedly arranged at the bottom of the extension block, and a second insertion hole is opened at the top of the extension bar for use with the first insertion rod. After the second sliding frame moves upward, the first insertion rod disengages from the second insertion hole to release the positioning of the second sliding frame, and conversely, the second sliding frame can be fixed below the first sliding frame.

[0022] In a possible design, a connecting strip is fixedly provided on the top of the extension strip on the graphitization furnace, and a first rotating rod is rotatably provided on one side of the connecting strip, and a second plug rod is slidably provided on the top of the extension strip, and the bottom of the first rotating rod is in conflict with the top of the second plug rod. A positioning hole for use with the second plug rod is opened on the top of the graphitization furnace, and a limit plate is fixedly sleeved on the outer wall of the second plug rod, and the limit plate is slidably provided on one side of the connecting strip, and a spring is sleeved on the outer wall of the second plug rod, and the two ends of the spring are respectively fixedly connected to the side close to each other of the extension strip and the limit plate, and a second rotating rod is rotatably provided on one side of the first rotating rod, and the second rotating rod is rotatably provided on the corresponding guide rail side.

[0023] In a possible design, a second fixed block is fixed on both sides of the first sliding frame, a screw is rotatably provided between the two second fixed blocks, a nut block is threadedly sleeved on the outer wall of the screw, a first insertion hole is opened on the top of the second sliding frame, and the nut block is slidably arranged in the first insertion hole, a first motor is fixed on one side of one of the second fixed blocks, and the output end of the first motor is fixedly connected to the screw to provide power for the second sliding frame.

[0024] In one possible design, a base is fixedly provided at the bottom of the furnace cover, two first rollers in contact with the ground are fixedly provided at the bottom of the base, two guide rods are fixedly provided on one side of the base, and the guide rods are slidably provided on a bracket below the graphitization furnace to guide the movement direction of the furnace cover.

[0025] In one possible design, a ground rail is provided on one side of the graphitization furnace, a plurality of support legs are fixedly provided at the bottom of the placement plate, a second roller located in the ground rail is fixedly provided at the bottom of the support legs, and a first positioning block and a second positioning block for limiting the placement plate are fixedly provided at the top of the ground rail.

[0026] The first motor is then started to drive the screw to rotate, and the screw rotation process drives the second sliding frame to move through the nut block until the second sliding frame moves above the placement plate;

[0027] When the cam is in contact with the extension bar, the second sliding frame is driven upward again to drive the crucible to leave the positioning groove;

[0028] Then, the first motor is started to rotate in the reverse direction, driving the second sliding frame to reset and move until the crucible moves to the sliding plate, and the dual-axis motor is started again to rotate in the reverse direction to open the clamping plate, and the second sliding frame is driven to move downward to place the crucible in the positioning groove on the sliding plate. At this time, the loading is completed;

[0029] Finally, the furnace cover is pushed toward the graphitization furnace, and the graphitization furnace is started to process the material in the crucible.

[0030] Beneficial effects:

[0031] Effect 1:

[0032] 1. For different graphitization types of negative electrode materials, the optimal graphitization furnace type can be experimentally determined and solidified as the production furnace type for mass production.

[0033] 2. According to different graphitization types of negative electrode materials, the loading process under different graphitization furnace types can be experimented, including the particle size of the resistor material, the insulation furnace, the thickness of the cover on the product, the repeated use regulations of the furnace charge, etc., and solidified as the mass production loading process.

[0034] 3. According to different graphitization types of negative electrode materials, the graphitization power transmission curves that ensure quality, safety and energy saving under different graphitization furnace types can be experimentally obtained and solidified as the production power transmission curves for mass production.

[0035] 4. For different graphitization furnace types, the cooling time of the graphitization furnace that ensures quality, safety and efficiency can be experimentally determined and solidified as the production cooling guide time for mass production.

[0036] 5. According to different graphitization furnace types, we can experiment with high-quality and efficient product graphitization furnace operation processes, and solidify them as mass production production operation processes.

[0037] Through experimental research, the graphitization production process of negative electrode materials is streamlined to ensure the safety of graphitization production of negative electrode materials and product quality, reduce unit energy consumption and cost, effectively improve production efficiency, achieve safe production, meet customer product quality requirements, and achieve unit power consumption, unit cost, and production efficiency that reach advanced levels in the industry.

[0038] Effect 2:

[0039] 1. In the present invention, a production process for graphitizing negative electrode materials for new energy batteries is described. By starting a dual-axis motor to drive the clamping plates to rotate, the clamping plates can clamp the crucible when they are close to each other, and will not interfere with the graphitization furnace after opening, facilitating the opening and closing of the furnace cover. In addition, rubber pads are provided in the clamping plates to first clamp the crucible and then drive the crucible to move upward to release it from the positioning groove, facilitating the subsequent movement of the crucible without manual placement.

[0040] 2. In the present invention, the production process for graphitizing negative electrode materials for new energy batteries can drive the second sliding frame to move by starting the first motor, thereby conveniently driving the clamped crucible to move, enabling loading and unloading, and being able to move multiple crucibles at a time, thereby improving loading and unloading efficiency and being more convenient to use;

[0041] 3. In the present invention, the production process for graphitizing negative electrode materials for new energy batteries, through the coordinated use of the first insertion rod and the second insertion hole, as well as the second insertion rod and the positioning hole, enables the crucible to be more stable during movement, thereby preventing deviation during movement and improving placement accuracy.

[0042] 4. In the present invention, the production process for graphitizing negative electrode materials for new energy batteries is capable of positioning the moving distance of the placement plate by arranging a first positioning block and a second positioning block on the ground rail, so that the rubber gasket can correspond to the crucible, further improving the accuracy of positioning.

[0043] 5. In the present invention, the first sliding frame, the second sliding frame and the placement plate are used in conjunction with each other to guide the splint, and the use of the first motor and the dual-axis motor can realize automatic loading and unloading, which not only improves the processing efficiency, but also reduces the labor of workers and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A three-dimensional structural diagram of a graphitization production process for a new energy battery negative electrode material proposed in the present invention;

[0045] Figure 2 A schematic diagram of the three-dimensional structure of a graphitization production process for a new energy battery negative electrode material proposed by the present invention from another perspective;

[0046] Figure 3 for Figure 1 Schematic diagram of the local structure;

[0047] Figure 4 This is a schematic diagram of the connection structure between the second sliding frame and the first sliding frame in a production process for graphitizing negative electrode materials for new energy batteries proposed by the present invention.

[0048] Figure 5 for Figure 4 Schematic diagram of the structure from another perspective.

[0049] Figure 6 This is a schematic diagram of the second sliding frame and rotating rod structure of a production process for graphitizing negative electrode materials for new energy batteries proposed by the present invention.

[0050] Figure 7 for Figure 6 Schematic diagram of the method structure in part A.

[0051] Figure 8 This is a schematic diagram of the splint structure of a production process for graphitizing negative electrode materials for new energy batteries proposed in the present invention.

[0052] Figure 9 This is a schematic diagram of the positioning block structure of a production process for graphitization of negative electrode materials for new energy batteries proposed by the present invention.

[0053] In the figure: 1. Graphitization furnace; 2. Furnace cover; 3. Base; 4. First roller; 5. First sliding frame; 6. Guide rod; 7. Sliding plate; 8. Placement plate; 9. Positioning groove; 10. Support leg; 11. Second roller; 12. Ground rail; 13. Rotating bar; 14. Clamp; 15. Fixed plate; 16. Sliding block; 17. Guide rail; 18. Guide column; 19. Second sliding frame; 20. Extension bar; 21. First fixed block; 22. Second fixed block; 23. Screw; 24 , first motor; 25, nut block; 26, first socket; 27, extension block; 28, first plug rod; 29, second socket; 30, first rotating shaft; 31, second rotating shaft; 32, dual-axis motor; 33, third rotating shaft; 34, gear; 35, cam; 36, connecting strip; 37, limit plate; 38, second plug rod; 39, spring; 40, first rotating rod; 41, second rotating rod; 42, rubber pad; 43, first positioning block; 44, second positioning block. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0055] Example 1

[0056] Reference Figure 1 - Figure 9 A production process for graphitizing negative electrode materials for new energy batteries, which is used in the field of battery negative electrode material processing, includes the following steps:

[0057] S1. Conduct production experiments using different loading methods, namely, stacked graphite paper loading, crucible loading, and box plate loading. Study the effects of different heating curves on product particle size, graphitization degree, specific surface area, and tap density performance parameters, as well as energy consumption and safety issues, for each loading method.

[0058] S2. Study the effects of the furnace core, placement of resistor materials, thickness and particle size of insulation materials on product particle size, graphitization degree, specific surface area and tap density performance parameters under different furnace loading forms, as well as energy consumption and safety issues;

[0059] S3. Study the effects of different cooling times on product performance, production efficiency and furnace safety under different furnace types;

[0060] S4. Design the product discharge equipment system and conduct experiments in the production system.

[0061] The purpose is to select the furnace type for graphitization of artificial graphite negative electrode materials for lithium batteries, determine the furnace loading form, study the graphitization temperature curve, design the loading and unloading methods, and formulate product technical indicators.

[0062] The crucible in S1 is loaded with a high-temperature graphitization furnace, which includes a graphitization furnace 1. A furnace cover 2 for sealing the graphitization furnace 1 is slidably provided on one side of the graphitization furnace 1. A sliding plate 7 is slidably provided inside the graphitization furnace 1. The other end of the sliding plate 7 is fixedly connected to the furnace cover 2 to form a bracket for supporting the crucible.

[0063] A placement plate 8 is slidably disposed on one side of the graphitization furnace 1 and is used in conjunction with two clamping plates 14 to place replacement crucibles. Positioning grooves 9 for positioning the crucibles are provided on the tops of the placement plate 8 and the sliding plate 7.

[0064] A first sliding frame 5 is provided on the top of the graphitization furnace 1 for sliding movement. The bottom of one end of the first sliding frame 5 is fixed on the furnace cover 2. A second sliding frame 19 slides below the first sliding frame 5. The bottom of the second sliding frame 19 is provided with two clamping plates 14 for clamping multiple crucibles at the same time. After clamping, the crucibles can be driven out of the positioning groove 9. A dual-axis motor 32 is provided below the second sliding frame 19. The output end of the dual-axis motor 32 is connected to the clamping plate 14 to provide clamping power thereto. After the two clamping plates 14 move away from each other, the motor can be moved onto the graphitization furnace 1.

[0065] The positioning mechanism is arranged below the first sliding frame 5 and is used in conjunction with the second sliding frame 19 to limit the position of the first sliding frame 5. When the crucible is processed in the graphitization furnace 1, the furnace cover 2 is pulled outward to drive the sliding plate 7 to move in the graphitization furnace 1 until the crucible on the sliding plate 7 is completely removed from the graphitization furnace 1 without manual removal. By starting the dual-axis motor 32, the two sets of clamping plates 14 can be driven to rotate to clamp multiple crucibles, and then the second sliding frame 19 is pushed to move under the first sliding frame 5 until the crucible moves to the placement plate 8, so that it can move multiple crucibles at the same time, thereby improving processing efficiency, and the setting of the positioning mechanism makes it more stable during the movement.

[0066] Two groups of guide columns 18 are provided on the top of the first sliding frame 5 for sliding, and the bottom of each group of guide columns 18 is fixed with the same guide rail 17. The second sliding frame 19 is slidably sleeved on the two guide rails 17. A plurality of first fixed blocks 21 are fixed on the bottom of the second sliding frame 19. A first rotating shaft 30 and a second rotating shaft 31 are provided for rotation through one side of the plurality of first fixed blocks 21. A dual-axis motor 32 is fixed on one side of one of the first fixed blocks 21, and its output end is fixedly connected to the second rotating shaft 31. The outer walls of the first rotating shaft 30 and the second rotating shaft 31 are fixedly sleeved with two rotating bars 13. The splint 14 is fixed on one side of the two rotating bars 13 on the same side. The other output of the dual-axis motor 32 A third rotating shaft 33 is fixedly provided at the end, and the outer walls of the third rotating shaft 33 and the first rotating shaft 30 are fixedly sleeved with meshing gears 34. By starting the dual-axis motor 32, the second rotating shaft 31 and the third rotating shaft 33 can be driven to rotate. The third rotating shaft 33 can drive the first rotating shaft 30 to rotate through the gear 34, so that the second rotating shaft 31 and the first rotating shaft 30 rotate in opposite directions, and in the process of rotation, the clamping plate 14 can be driven to move through the rotating bar 13 to clamp the crucible, and when the dual-axis motor 32 is started to rotate in the opposite direction, the clamping plate 14 can be driven to move in the opposite direction to open it, so that it is convenient to drive the clamping plate 14 to move onto the graphitization furnace 1 when storing it, saving floor space and making storage convenient.

[0067] A fixed plate 15 and a sliding block 16 are fixed to the bottom of the first sliding frame 5. The fixed plate 15 is fixed to the furnace cover 2, and the sliding block 16 is slidably mounted on the top of the graphitization furnace 1. An extension bar 20 is fixed to the sides of the fixed plate 15 and the sliding block 16 that are close to each other. The outer walls of the second rotating shaft 31 and the third rotating shaft 33 are fixedly sleeved with cams 35 that cooperate with the extension bar 20. During their rotation, the cams 35 and the extension bar 20 can drive the second sliding frame 19 to move upward, driving the crucible to disengage from the positioning groove 9. During the rotation of the second rotating shaft 31 and the third rotating shaft 33, the cam 35 can be driven to rotate. When the convex portion of the cam 35 contacts the extension bar 20, the second sliding frame 19 can be driven to move upward, thereby driving the clamped crucible to move upward and disengage from the corresponding positioning groove 9.

[0068] A rubber pad 42 for use with the crucible is fixedly provided on the inner side of the clamping plate 14. By arranging the rubber pad 42 inside the clamping plate 14, it can continue to rotate after clamping the crucible, making it convenient to clamp the crucible first and then drive the crucible to move upward and out of the positioning groove 9.

[0069] The positioning mechanism includes an extension block 27 fixedly arranged on one side of the second sliding frame 19, a first insertion rod 28 is fixedly arranged at the bottom of the extension block 27, and a second insertion hole 29 is opened on the top of the extension bar 20 for use with the first insertion rod 28. After the second sliding frame 19 moves upward, the first insertion rod 28 disengages from the second insertion hole 29 to release the positioning of the second sliding frame 19, and conversely, the second sliding frame 19 can be fixed below the first sliding frame 5. When the cam 35 and the extension bar 20 drive the second sliding frame 19 to move upward, the first insertion rod 28 can be driven to disengage from the second insertion hole 29, thereby releasing the fixation of the second sliding frame 19, so that the second sliding frame 19 will not move during the movement of the first sliding frame 5.

[0070] A connecting strip 36 is fixed to the top of the extension strip 20 on the graphitization furnace 1. A first rotating rod 40 is rotatably provided on one side of the connecting strip 36. A second plug rod 38 is slidably provided through the top of the extension strip 20. The bottom of the first rotating rod 40 conflicts with the top of the second plug rod 38. A positioning hole for use with the second plug rod 38 is provided on the top of the graphitization furnace 1. A limiting plate 37 is fixedly provided on the outer wall of the second plug rod 38. The limiting plate 37 is slidably provided on one side of the connecting strip 36. A spring 39 is provided on the outer wall of the second plug rod 38. The two ends of the spring 39 are respectively engaged with the extension strip 20 and the limiting plate 37 are fixedly connected on one side close to each other, and a second rotating rod 41 is rotatably provided on one side of the first rotating rod 40. The second rotating rod 41 is rotatably provided on one side of the corresponding guide rail 17. In the process of the second sliding frame 19 driving the guide rail 17 to move upward, the first rotating rod 40 can be driven to rotate by the second rotating rod 41. In the process of the first rotating rod 40 rotating, the second insertion rod 38 can be driven to move downward, so that the second insertion rod 38 is inserted into the positioning hole on the graphitization furnace 1. In the process of the movement of the second sliding frame 19, the first sliding frame 5 will not move on the graphitization furnace 1, so that the unloading is more stable.

[0071] Example 2

[0072] refer to Figure 1 - Figure 9 , improved on the basis of Example 1: a second fixed block 22 is fixed on both sides of the first sliding frame 5, a screw 23 is rotatably provided between the two second fixed blocks 22, a nut block 25 is threadedly sleeved on the outer wall of the screw 23, a first insertion hole 26 is opened on the top of the second sliding frame 19, the nut block 25 is slidably set in the first insertion hole 26, and a first motor 24 is fixed on one side of one of the second fixed blocks 22, the output end of the first motor 24 is fixedly connected to the screw 23 to provide power for the second sliding frame 19, and the screw 23 can be driven to rotate by starting the first motor 24. The rotation of the screw 23 can drive the second sliding frame 19 to move through the nut block 25 to push the clamped crucible, without manual pushing, and more convenient to use.

[0073] A base 3 is fixed to the bottom of the furnace cover 2, and two first rollers 4 in contact with the ground are fixed to the bottom of the base 3. Two guide rods 6 are fixed to one side of the base 3. The guide rods 6 pass through and slide on the bracket below the graphitization furnace 1 to guide the moving direction of the furnace cover 2. By arranging the first roller 4 at the bottom of the furnace cover 2, it is convenient to push the furnace cover 2 to move, and it can also be guided by the guide rods 6 during the movement, which can effectively avoid deviation during the movement.

[0074] A ground rail 12 is provided on one side of the graphitization furnace 1, and a plurality of supporting legs 10 are fixedly provided at the bottom of the placement plate 8. A second roller 11 located in the ground rail 12 is fixedly provided at the bottom of the supporting legs 10, and a first positioning block 43 and a second positioning block 44 for limiting the placement plate 8 are fixed on the top of the ground rail 12. By sliding the placement plate 8 on the ground rail 12 and being able to limit it by the first positioning block 43 and the second positioning block 44, its movement is more precise, which facilitates the corresponding alignment of the positioning groove 9 on the placement plate 8 with the clamped crucible.

[0075] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 24 and the dual-axis motor 32 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0076] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can replace or change the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, and the replacement or change should be covered by the scope of protection of the present invention.

Claims

1. A production process for graphitizing negative electrode materials for new energy batteries, characterized in that: Production is carried out in a crucible charging furnace form, wherein the crucible charging furnace adopts a high-temperature graphitization furnace, which comprises a graphitization furnace (1), a furnace cover (2) for sealing the graphitization furnace (1) is slidably provided on one side of the graphitization furnace (1), a sliding plate (7) is slidably provided inside the graphitization furnace (1), and the other end of the sliding plate (7) is fixedly connected to the furnace cover (2) to form a bracket for supporting the crucible; A placement plate (8), the placement plate (8) being slidably disposed on one side of the graphitization furnace (1) and being used in conjunction with two clamping plates (14) for placing a replacement crucible, wherein the tops of the placement plate (8) and the sliding plate (7) are both provided with positioning grooves (9) for positioning the crucible; The top of the graphitization furnace (1) is provided with a first sliding frame (5) for sliding, and the bottom of the first sliding frame (5) is connected to a second sliding frame (19) for sliding. The second sliding frame (19) is slid below the first sliding frame (5), and the bottom of the second sliding frame (19) is provided with two clamping plates (14) for clamping multiple crucibles at the same time, and can drive the crucibles to leave the positioning groove (9) after clamping. A double-axis motor (32) is provided below the second sliding frame (19), and the output end of the double-axis motor (32) is connected to the clamping plate (14) to provide clamping power thereto, and can move to the graphitization furnace (1) after the two clamping plates (14) move away from each other. The positioning mechanism is arranged below the first sliding frame (5) and is used in conjunction with the second sliding frame (19) to limit the position of the first sliding frame (5).

2. The production process for graphitizing anode materials for new energy batteries according to claim 1, characterized in that: The top of the first sliding frame (5) is provided with two groups of guide columns (18) for sliding, and the bottom of each group of guide columns (18) is fixed with the same guide rail (17), and the second sliding frame (19) is slidably sleeved on the two guide rails (17). The bottom of the second sliding frame (19) is fixed with multiple first fixed blocks (21), and one side of the multiple first fixed blocks (21) is provided with a first rotating shaft (30) and a second rotating shaft (31) for rotation, and the dual-axis motor (32) is fixed on one side of one of the first fixed blocks (21), and its output end is fixedly connected to the second rotating shaft (31), and the outer walls of the first rotating shaft (30) and the second rotating shaft (31) are fixedly sleeved with two rotating bars (13), and the clamping plate (14) is fixedly provided on one side of the two rotating bars (13) on the same side, and the other output end of the dual-axis motor (32) is fixedly provided with a third rotating shaft (33), and the outer walls of the third rotating shaft (33) and the first rotating shaft (30) are fixedly sleeved with meshing gears (34).

3. The production process for graphitizing anode materials for new energy batteries according to claim 2, characterized in that: A fixed plate (15) and a sliding block (16) are fixedly provided at the bottom of the first sliding frame (5), the fixed plate (15) is fixedly provided on the furnace cover (2), and the sliding block (16) is slidably provided on the top of the graphitization furnace (1), and an extension bar (20) is fixedly provided on the side of the fixed plate (15) and the sliding block (16) close to each other, and a cam (35) used in conjunction with the extension bar (20) is fixedly provided on the outer wall of the second rotating shaft (31) and the third rotating shaft (33), and during the rotation process, the second sliding frame (19) can be driven to move upward by the cam (35) and the extension bar (20), thereby driving the crucible to leave the positioning groove (9).

4. The production process for graphitizing anode materials for new energy batteries according to claim 3, characterized in that: A rubber pad (42) used in conjunction with the crucible is fixedly provided on the inner side of the clamping plate (14).

5. The production process for graphitizing anode materials for new energy batteries according to claim 4, characterized in that: The positioning mechanism includes an extension block (27) fixedly arranged on one side of the second sliding frame (19), a first insertion rod (28) fixedly arranged at the bottom of the extension block (27), and a second insertion hole (29) for use with the first insertion rod (28) opened at the top of the extension bar (20). After the second sliding frame (19) moves upward, the first insertion rod (28) disengages from the second insertion hole (29) to release the positioning of the second sliding frame (19), and conversely, the second sliding frame (19) can be fixed below the first sliding frame (5).

6. The production process for graphitizing anode materials for new energy batteries according to claim 5, characterized in that: A connecting bar (36) is fixedly provided on the top of the extension bar (20) on the graphitization furnace (1), and a first rotating rod (40) is rotatably provided on one side of the connecting bar (36). A second plug rod (38) is slidably provided on the top of the extension bar (20), and the bottom of the first rotating rod (40) conflicts with the top of the second plug rod (38). A positioning hole for use with the second plug rod (38) is opened on the top of the graphitization furnace (1), and a limit plate (37) is fixedly sleeved on the outer wall of the second plug rod (38), and the limit plate (37) is slidably provided on one side of the connecting bar (36). A spring (39) is sleeved on the outer wall of the second plug rod (38), and both ends of the spring (39) are fixedly connected to the mutually adjacent sides of the extension bar (20) and the limit plate (37), respectively. A second rotating rod (41) is rotatably provided on one side of the first rotating rod (40), and the second rotating rod (41) is rotatably provided on one side of the corresponding guide rail (17).

7. The production process for graphitizing anode materials for new energy batteries according to claim 6, characterized in that: A second fixed block (22) is fixed on both sides of the first sliding frame (5), a screw rod (23) is rotatably provided between the two second fixed blocks (22), a nut block (25) is threadedly sleeved on the outer wall of the screw rod (23), a first insertion hole (26) is provided on the top of the second sliding frame (19), and the nut block (25) is slidably arranged in the first insertion hole (26), a first motor (24) is fixed on one side of one of the second fixed blocks (22), and an output end of the first motor (24) is fixedly connected to the screw rod (23) to provide power for the second sliding frame (19).

8. The production process for graphitizing anode materials for new energy batteries according to claim 7, characterized in that: A base (3) is fixedly provided at the bottom of the furnace cover (2), two first rollers (4) in contact with the ground are fixedly provided at the bottom of the base (3), and two guide rods (6) are fixedly provided on one side of the base (3), and the guide rods (6) are slidably provided on a bracket below the graphitization furnace (1) and are used to guide the moving direction of the furnace cover (2).

9. The production process for graphitizing anode materials for new energy batteries according to claim 8, characterized in that: A ground rail (12) is provided on one side of the graphitization furnace (1), a plurality of support legs (10) are fixedly provided at the bottom of the placement plate (8), a second roller (11) located within the ground rail (12) is fixedly provided at the bottom of the support legs (10), and a first positioning block (43) and a second positioning block (44) for limiting the placement plate (8) are fixedly provided at the top of the ground rail (12).

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