High-temperature carbonization device for hard carbon material

Abstract

A hard carbon material high-temperature carbonization device comprises a grinding part located at the top and a carbonization part located at the bottom, the grinding part and the carbonization part are connected through a connecting pipeline, the grinding part comprises a grinding bin, a grinding ball, a fixing support and an adjusting frame, the grinding ball is arranged in the grinding bin, the fixing support is fixed above the carbonization part, and the adjusting frame is arranged on the grinding bin. The adjusting frame is located between the grinding bin and the fixing support. The carbonization part comprises a shell, a stirring assembly and a bottom cavity, the stirring assembly is located in the center of the shell, and the bottom cavity is located at the bottom of the carbonization part. According to the high-temperature carbonization device for the hard carbon material, raw materials to be carbonized are fully refined through the grinding part, the uniformity of high-temperature carbonization is greatly improved, coal raw materials are continuously stirred while being carbonized at high temperature through the stirring assembly, the coal raw materials are heated more uniformly, and the carbonization efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carbonization of negative electrode materials, and more specifically, to a high-temperature carbonization device for hard carbon materials. Background Art

[0002] Amorphous carbon can be divided into soft carbon and hard carbon according to the difficulty of graphitization. Hard carbon materials have significant advantages in sodium-ion batteries. Hard carbon is a carbon material that is difficult to convert into graphitized even after high-temperature treatment above 2800°C. It is difficult to eliminate the disordered structure of hard carbon at high temperature, so it can also be called difficult-to-graphitize carbon. Although the electronic conductivity of soft carbon materials is relatively high, their specific capacity is still relatively low, which limits the large-scale application of soft carbon in sodium batteries. Unlike the sodium storage method of soft carbon, the capacity and voltage curves of hard carbon materials show the coexistence of slopes and platforms. As a sodium-ion negative electrode material, the reversible specific capacity of hard carbon can reach 300mAh / g. The hard carbon negative electrode has a low sodium storage potential, which is beneficial to improve the voltage and energy density of the whole battery. At the same time, it has a highly disordered structure and exhibits good cycle performance.

[0003] When preparing coal-based hard carbon negative electrode materials, the traditional process requires a series of processes such as crushing, screening, pickling, and drying the coal raw materials, and then putting the pre-treated coal raw materials into the high-temperature carbonization equipment for high-temperature carbonization. Traditional high-temperature carbonization equipment cannot crush and refine the coal-based raw materials, which increases the equipment required for preparing coal-based negative electrode materials, resulting in increased economic costs, and untreated coal raw materials will also make the carbonization effect unsatisfactory.

[0004] Therefore, the problems existing in the prior art need to be further improved and developed. Summary of the invention

[0005] (I) Purpose of the invention: In order to solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a high-temperature carbonization device for hard carbon materials.

[0006] (ii) Technical solution: In order to solve the above technical problems, the present technical solution provides a high-temperature carbonization device for hard carbon materials, comprising a driving part, a grinding part, and a carbonization part arranged in sequence from top to bottom, the grinding part comprising a grinding chamber with a spherical shell, pestle-shaped grinding balls, a second bracket for supporting the grinding chamber, a first bracket for supporting the grinding balls, and an adjustment frame for performing three adjustments on the position of the grinding balls inside the grinding chamber, a first protrusion is provided on the inner wall of the grinding chamber, and a second protrusion is provided on the outer wall of the grinding balls.

[0007] The driving part drives the grinding balls to grind in the grinding chamber. The grinding part is connected to the carbonizing part through a connecting pipe. The carbonizing part includes a shell, a stirring component, and a bottom cavity. The stirring component is located at the center of the shell, and the bottom cavity is located at the bottom of the carbonizing part.

[0008] Furthermore, a valve is arranged on the connecting pipe, a material outlet is provided at the connection between the grinding chamber and the connecting pipe, a material inlet is provided at the end close to the adjusting plate, the upper end of the grinding ball away from the carbonizing part is a straight rod-shaped rotating shaft, and the lower end close to the carbonizing part is spherical, and the material outlet is connected to the carbonization space inside the carbonizing part through the connecting pipe.

[0009] Furthermore, in the axial direction of the grinding bin, the first protrusion gradually becomes larger at one end close to the carbonization part, and on the radial circumference of the grinding bin, the first protrusions are of the same size; the second protrusions are of the same size in the axial and radial directions; a orifice plate is provided at the material outlet, the orifice plate is a circular plate with an arc, and a through hole is provided on the orifice plate, and the arc is consistent with the arc of the bottom of the grinding bin.

[0010] Furthermore, the adjustment frame includes an adjustment plate, an adjustment bolt, and a spring. The adjustment plate is located at the lower part of the first bracket and can move up and down along the side wall of the adjustment frame. The spring is located between the first bracket and the adjustment plate. The adjustment bolt is fixed on the adjustment plate and the first bracket, and together with the spring, connects the first bracket to the adjustment plate; when the adjustment bolt is tightened upward, the spring is compressed, and when the adjustment bolt is tightened downward, the spring is relaxed.

[0011] Furthermore, there are three layers of fixing holes on the left and right sides of the first bracket, and pins are inserted into the fixing holes. The fixing holes include an upper hole, a middle hole, and a lower hole. The upper hole assists in fixing the grinding ball at a position inside the grinding bin and away from the carbonization part, the middle hole assists in fixing the grinding ball at a center position concentric with the grinding bin, and the lower hole assists in fixing the grinding ball at a position inside the grinding bin close to the carbonization part.

[0012] Furthermore, both ends of the left and right sides of the adjustment plate near the first bracket are provided with matching holes for use with the fixing holes, and the latch is inserted into one of the three layers of fixing holes and the inside of the matching holes.

[0013] Furthermore, the driving part includes a matching gear located at the top of the straight rod-shaped rotating shaft, a rotating shaft close to the straight rod-shaped rotating shaft, a three-stage driving wheel arranged on the rotating shaft, and a motor. The motor is connected to the rotating shaft and drives the three-stage driving gear arranged on the rotating shaft to rotate. The three-stage driving wheel includes a primary driving wheel, a secondary driving wheel, and a third driving wheel. The primary driving wheel, the secondary driving wheel, and the third driving wheel mesh with the matching gears at different positions.

[0014] Furthermore, the shell includes an outer shell, an inner shell, a heating layer, and an insulating layer. The inner shell is located inside the outer shell near one end of the stirring assembly, the heating layer is arranged on the outer peripheral side and the bottom of the inner shell, and the insulating layer is located between the outer shell and the heating layer.

[0015] Furthermore, the stirring assembly includes a cross bar, a stirring rod, a central axis, and a motor. The cross bar is located at the bottom inner wall of the inner pot, the stirring rod is located at both ends of the cross bar, the central axis is located on the central axis of the carbonization part, one end is connected to the middle of the cross bar, and the other end passes through the bottom of the outer shell into the bottom cavity to be connected to the motor. The stirring rod extends toward the grinding part and extends to the middle of the carbonization part.

[0016] Furthermore, a motor is arranged inside the bottom cavity, and the motor is connected to the central axis.

[0017] (III) Beneficial effects: The present invention provides a high-temperature carbonization device for hard carbon materials, which can refine the coal raw materials that need to be carbonized at high temperatures and improve the carbonization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a high-temperature carbonization device for hard carbon materials of the present invention;

[0019] Figure 2 It is a structural schematic diagram of local A of the present invention;

[0020] Figure 3 It is a structural schematic diagram of part B of the present invention;

[0021] Figure numerals: grinding bin 1, first protrusion 11, material inlet 12, orifice plate 13, through hole 131, grinding ball 2, second protrusion 21, straight rod-shaped rotating shaft 22, matching gear 23, first-stage driving wheel 24, second-stage driving wheel 25, third-stage driving wheel 26, first bracket 3, upper hole 31, middle hole 32, lower hole 33, adjusting frame 4, adjusting plate 41, matching hole 411, adjusting bolt 42, spring 43, bearing end cover 44, sleeve 45, bearing 46, shell 5, outer shell 51, liner 52, heat conductive layer 53, stirring assembly 6, cross bar 61, stirring rod 62, central axis 63, motor 64, bottom cavity 7, second bracket 8. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with preferred embodiments. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0023] The accompanying drawings are schematic diagrams of embodiments of the present invention. It should be noted that the drawings are only examples and are not drawn to scale, and should not be used to limit the actual protection scope of the present invention.

[0024] A high-temperature carbonization device for hard carbon materials comprises a driving part, a grinding part, and a carbonization part arranged in sequence from top to bottom, wherein the grinding part is located above the carbonization part to grind and refine the coal raw materials to be carbonized, and the carbonization part is located at the bottom to carbonize the coal raw materials to be carbonized at high temperature. The grinding part and the carbonization part are connected by a pipeline, and a valve is arranged on the connecting pipeline, and the valve closes or opens the coal raw materials entering the carbonization part. The driving part is located above the grinding part and causes the grinding part to grind.

[0025] like Figure 1 As shown, the grinding part includes a grinding chamber 1, grinding balls 2, a first bracket 3, an adjustment bracket 4, and a second bracket 8. The grinding chamber 1 can be two hemispherical shells, that is, they can be opened vertically and fixed together by bolts when in use to form a spherical shell. Alternatively, the grinding chamber 1 and the grinding balls 2 can be cast in one piece during casting, which is not limited in the present invention. The grinding chamber 1 is located above the carbonization part to accommodate the coal raw materials to be ground, and the second bracket 8 supports the grinding chamber 1 so that it can be stably arranged above the carbonization part. The grinding balls 2 are pestle-shaped and arranged inside the grinding chamber 1, and grind and refine the coal raw materials entering the grinding chamber 1 under the drive of the driving part, and the first bracket 3 supports the grinding balls 2 so that the grinding balls 2 can be stably arranged inside the grinding chamber 1. The adjustment bracket 4 is located between the grinding chamber 1 and the fixed bracket 3, and finely adjusts the upper and lower positions of the grinding balls 2 so that the grinding balls 2 can move up and down along the central axis inside the grinding chamber 1 to achieve graded grinding and optimize the grinding effect. That is, the adjusting frame 4 performs three adjustments on the position of the grinding balls 2 inside the grinding chamber.

[0026] The driving part is located above the grinding part, and drives the grinding ball 2 to make the grinding ball 2 rotate in one direction. It should be noted that when the grinding ball 2 rotates, the central axis of the grinding chamber 1 and the grinding ball 2 are always in a straight line.

[0027] Specifically, Figure 2As shown, the grinding chamber 1 has a material outlet at the connection point with the connecting pipe, and a material inlet 12 at one end close to the adjusting plate, and the material outlet is connected to the carbonization space inside the carbonization part through the connecting pipe. A first protrusion 11 is provided on the inner wall of the grinding chamber 1, and the grinding ball 2 is pestle-shaped. At the upper part of the grinding ball 2, the end away from the carbonization part is a straight rod-shaped rotating shaft 22, and the lower end close to the carbonization part is spherical. A second protrusion 21 is provided on the outer wall of the grinding ball 2, and the first protrusion 11 and the second protrusion 21 are staggered in the axial direction of the grinding chamber 1 at the initial moment, so as to better fix the coal raw material and achieve a better grinding effect of the coal raw material inside the grinding chamber 1. Wherein, the initial moment is before the start of grinding.

[0028] Wherein, a perforated plate 13 is provided at the material outlet of the grinding bin 1. The perforated plate 13 is a circular plate with an arc, and a through hole 131 is provided on the perforated plate 13. The arc of the perforated plate 13 is consistent with the arc of the bottom of the grinding bin, so that the block coal raw material stays in the grinding bin for grinding. The through hole 131 intercepts the block raw material, so that the finely ground coal raw material passes through and enters the carbonization space of the carbonization part as the valve is opened. In the axial direction of the grinding bin 1, the first protrusion 11 gradually becomes larger at the end close to the carbonization part. On the radial circumference of the grinding bin 1, the first protrusion 11 has the same size, so that the grinding bin 1 performs coarse grinding at the end away from the carbonization part and fine grinding at the end close to the carbonization part; the second protrusion 21 on the outer wall of the grinding ball 1 has the same size in the axial and radial directions.

[0029] It should be noted that the first protrusion 11 and the second protrusion 21 have various shapes, which can be strip-shaped, dot-shaped, block-shaped, semicircular, trapezoidal, or rectangular. The first protrusion 11 and the second protrusion 21 can also be continuous or disconnected, and there is no limitation here. In the present utility model, it is preferred that the first protrusion 11 is a disconnected strip-shaped protrusion arranged around the inner wall of the grinding chamber 1, and the second protrusion 21 is a disconnected strip-shaped protrusion arranged around the outer wall of the grinding ball 1. In this case, the cross-sections of the first protrusion 11 and the second protrusion 21 are both trapezoidal.

[0030] More specifically, a material inlet 12 is provided at one end of the grinding bin 1 away from the carbonization part, so that the coal raw material can enter the grinding bin 1 through the material inlet 12 for grinding.

[0031] Specifically, the adjustment frame 4 includes an adjustment plate 41, an adjustment bolt 42, and a spring 43. The adjustment plate 41 is located at the lower part of the first bracket 3 and can move up and down along the side wall of the adjustment frame 3 so as to adjust the position of the grinding ball 2. The spring 43 is located between the first bracket 3 and the adjustment plate 41. The adjustment bolt 42 is fixed on the adjustment plate 41 and the first bracket 3, and together with the spring 43, the first bracket 3 is connected to the adjustment plate 41. That is, when in use, the spring 43 is tightened or loosened by adjusting the adjustment bolt 42, that is, the spring 43 is tightened when the adjustment bolt 42 is tightened upward, and the spring 43 is loosened when the adjustment bolt 42 is tightened downward. Thus, the adjustment plate 41 moves on the first bracket 3, so that the position of the grinding ball 2 is adjusted up and down.

[0032] Specifically, Figure 1 As shown, the adjusting plate 41 is connected to the straight rod-shaped rotating shaft of the grinding ball 2 through a bearing 46, a sleeve 45, and a bearing end cover 44. Bolts are provided on the bearing end cover to fix the axial direction of the straight rod-shaped rotating shaft 22, so that the grinding ball 2 can move with the up and down movement of the adjusting plate 41 without hindering the rotation of the grinding ball 2.

[0033] There are three layers of fixing holes on the left and right sides of the first bracket 3. The fixing holes on the left side are as follows: Figure 3 As shown, a pin is inserted into the fixing hole. When the adjusting plate 41 is adjusted to the fixing hole position by the adjusting bolt, the pin helps fix the position of the adjusting plate 41. Thus, the adjusting plate 41 is in the fixing hole of the first bracket 3, so that the adjusting plate 41 has three different positions. The pin is inserted into one of the three layers of fixing holes, that is, under the adjustment of the adjusting plate 41, the grinding ball 2 has three fixed positions inside the grinding chamber. The three layers of fixing holes include an upper hole 31, a middle hole 32, and a lower hole 33. The upper hole 31 helps fix the grinding ball 2 at a position inside the grinding chamber 1 away from the carbonization part. The middle hole 32 makes the grinding ball 2 located at a central position concentric with the grinding chamber 1. The lower hole 33 makes the grinding ball 2 located at a position inside the grinding chamber 1 close to the carbonization part. Specifically, on both ends of the left and right sides of the adjustment plate near the first bracket, there are matching holes 411 used in conjunction with the fixing holes, and the pin is inserted into one of the three layers of fixing holes and the inside of the matching holes 411, thereby assisting in fixing the position of the adjustment plate 41.

[0034] The top of the second bracket 8 is in contact with the grinding chamber 1 , and the bottom of the second bracket 8 is located on the top end cover of the carbonization part, so as to stably support the grinding chamber 1 .

[0035] Specifically, the driving part includes a matching gear located at the top of the straight rod-shaped rotating shaft, a rotating shaft close to the straight rod-shaped rotating shaft, a three-stage driving wheel arranged on the rotating shaft, and a motor, wherein the motor is connected to the rotating shaft and drives the three-stage driving gear arranged on the rotating shaft to rotate, and the first-stage driving wheel 24, the second-stage driving wheel 25, and the third-stage driving wheel 26 are arranged from the top of the first bracket 3 to the bottom, wherein the first-stage driving wheel 24, the second-stage driving wheel 25, and the third-stage driving wheel 26 mesh with the matching gears at different positions. More specifically, when the adjustment plate 41 is located at the upper hole 31, the first-stage driving wheel 24 meshes with the matching gear, when the adjustment plate 41 is located at the middle hole 32, the second-stage driving wheel 25 meshes with the matching gear, and when the adjustment plate 41 is located at the lower hole 33, the third-stage driving wheel 26 meshes with the matching gear. That is to say, when the grinding ball 2 is located far away from the carbonization part, the first-stage main driven wheel 24 meshes with the matching gear 23 to rotate the grinding ball 2; when the grinding ball 2 is located at the center, the second-stage driving wheel 25 meshes with the matching gear 23 to rotate the grinding ball 2; when the grinding ball 2 is located close to the carbonization part, the third-stage driving wheel 26 meshes with the matching gear 23 to rotate the grinding ball 2.

[0036] The carbonization part includes a shell 5, a stirring assembly 6, and a bottom cavity 7. The stirring assembly 6 is located at the center of the shell 5 to fully stir the raw materials entering the carbonization part. The bottom cavity 7 is located at the bottom of the carbonization part to electrically heat the carbonization part.

[0037] Among them, the shell 5 includes an outer shell 51, an inner shell 52, a heating layer, and an insulating layer 53. The inner shell 52 is located inside the outer shell 51 at one end close to the stirring assembly 6, and is used to accommodate the coal raw material for high-temperature carbonization. The heating layer is arranged on the outer peripheral side and the bottom of the inner shell 52, and the heating layer is heated by the heater 8 located inside the bottom cavity 7 so that the inner shell 52 can be heated quickly. The heating layer can be a heating material such as a heating coil, a heating tube, a graphite rod, etc., which is not limited in the present invention. The insulating layer 53 can be a high-temperature resistant profile, a refractory brick, or a refractory wool, which is not limited in the present invention. The insulating layer 53 is located between the outer shell 51 and the heating layer to prevent heat loss and play a role in heat preservation and insulation.

[0038] Specifically, a protective gas inlet is provided at the front side of the end of the shell 5 away from the grinding part, so that the protective gas can enter the inner tank 52 from the outside, so that the coal raw material is carbonized at high temperature under the action of the protective gas. An exhaust gas outlet is provided at the end close to the grinding part and away from the protective gas inlet at the rear side of the shell, so that the exhaust gas generated by high-temperature carbonization is discharged from the exhaust gas outlet. A material outlet is provided at the end of the shell 5 close to the bottom and at the rear side of the shell, and the material is discharged from the material outlet after the high-temperature carbonization is completed.

[0039] The stirring assembly 6 includes a cross bar 61, a stirring rod 62, a central shaft 63, and a motor 64. The cross bar 61 is located at the inner wall of the bottom of the inner pot 52 and is used to fix the stirring rod 62. The stirring rod 62 is located at both ends of the cross bar 61, and both extend toward the grinding part and extend to the middle of the carbonization part. The central shaft 63 is located on the central axis of the carbonization part, one end is connected to the cross bar 61, and the other end passes through the bottom of the shell 51 to enter the bottom cavity 7 and connect to the motor 64. Among them, a high-temperature resistant sealing ring is provided between the central shaft 63 and the bottom shell. The sealing ring can withstand a high temperature of 900° to meet the high-temperature carbonization requirements. The sealing ring seals the central shaft 63 and the bottom shell, and the heat insulation layer 53 located at the bottom of the carbonization part insulates the sealing ring to prevent heat from diffusing into the bottom cavity 7.

[0040] A motor 64 is disposed inside the bottom cavity 7 , and the motor 64 is connected to the central shaft 63 , and is used to drive the stirring rod 62 to stir inside the inner container 52 , so that the coal raw material inside the inner container 52 is evenly heated.

[0041] When the utility model is used, the adjusting plate 41 is first adjusted to the upper hole 31 fixed, the middle hole 32 fixed, or the lower hole 33 fixed, so that the grinding ball 2 meshes with the first driven wheel, the second driven wheel, or the third driven wheel, and then the material inlet is opened to put the coal raw material to be crushed, and the motor is started to make the grinding ball 2 crush and grind inside the grinding bin 1, and the first protrusion 11 and the second protrusion 21 cooperate to squeeze and shear the coal raw material, so that the coal raw material is fully refined. Finally, the valve on the connecting pipeline is opened to allow the refined coal powder to enter the carbonization part for high-temperature carbonization, and inert protective gas is introduced into the carbonization part through the gas inlet. The exhaust gas to be discharged after high-temperature carbonization is discharged from the gas outlet of the carbonization part and discharged around the bottom of the grinding bin 1 along the pipeline, and the ground and refined coal powder inside the grinding bin is dried to avoid the adhesion problem caused by the humidity of the coal raw material during the grinding process. The material after high-temperature carbonization is discharged from the material outlet near the bottom end of the carbonization part.

[0042] The utility model discloses a high-temperature carbonization device for hard carbon materials. The grinding part is provided to fully refine the raw materials to be carbonized, which greatly increases the uniformity of high-temperature carbonization. The stirring component is provided to continuously stir the coal raw materials during high-temperature carbonization, which makes the coal raw materials heated more evenly and greatly improves the efficiency of carbonization.

[0043] The above content is an explanation of the preferred embodiments of the present invention, which can help those skilled in the art to more fully understand the technical solution of the present invention. However, these embodiments are merely illustrative, and it cannot be determined that the specific implementation methods of the present invention are limited to the description of these embodiments. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and transformations can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A high-temperature carbonization device for hard carbon materials, comprising a driving part, a grinding part, and a carbonization part arranged in sequence from top to bottom, characterized in that: The grinding part includes a grinding chamber with a spherical shell, pestle-shaped grinding balls, a second bracket for supporting the grinding chamber, a first bracket for supporting the grinding balls, and an adjustment frame for adjusting the positions of the grinding balls in the grinding chamber in three ways; a first protrusion is provided on the inner wall of the grinding chamber, and a second protrusion is provided on the outer wall of the grinding balls; The driving part drives the grinding balls to grind in the grinding chamber. The grinding part is connected to the carbonizing part through a connecting pipe. The carbonizing part includes a shell, a stirring component, and a bottom cavity. The stirring component is located at the center of the shell, and the bottom cavity is located at the bottom of the carbonizing part.

2. A high temperature carbonization device for hard carbon materials according to claim 1, characterized in that: A valve is arranged on the connecting pipe, a material outlet is provided at the connection between the grinding chamber and the connecting pipe, and a material inlet is provided at the end close to the adjusting plate. The upper end of the grinding ball away from the carbonizing part is a straight rod-shaped rotating shaft, and the lower end close to the carbonizing part is spherical. The material outlet is connected with the carbonizing space inside the carbonizing part through the connecting pipe.

3. A high temperature carbonization device for hard carbon materials according to claim 2, characterized in that: In the axial direction of the grinding bin, the first protrusion gradually becomes larger at the end close to the carbonization part, and on the radial circumference of the grinding bin, the first protrusions are of the same size; the second protrusions are consistent in size in the axial and radial directions; a perforated plate is provided at the material outlet, the perforated plate is a circular plate with an arc, and a through hole is provided on the perforated plate, and the arc is consistent with the arc of the bottom of the grinding bin.

4. The high-temperature carbonization device for hard carbon materials according to claim 1, characterized in that: The adjustment frame includes an adjustment plate, an adjustment bolt, and a spring. The adjustment plate is located at the lower part of the first bracket and can move up and down along the side wall of the adjustment frame. The spring is located between the first bracket and the adjustment plate. The adjustment bolt is fixed to the adjustment plate and the first bracket, and together with the spring, connects the first bracket to the adjustment plate; when the adjustment bolt is tightened upward, the spring is compressed, and when the adjustment bolt is tightened downward, the spring is relaxed.

5. A high temperature carbonization device for hard carbon materials according to claim 4, characterized in that: There are three layers of fixing holes on the left and right sides of the first bracket, and pins are inserted into the fixing holes. The fixing holes include an upper hole, a middle hole, and a lower hole. The upper hole helps fix the grinding ball at a position inside the grinding bin and away from the carbonization part, the middle hole helps fix the grinding ball at a center position concentric with the grinding bin, and the lower hole helps fix the grinding ball at a position inside the grinding bin close to the carbonization part.

6. A high temperature carbonization device for hard carbon materials according to claim 4, characterized in that: Both ends of the left and right sides of the adjustment plate near the first bracket are provided with matching holes used in conjunction with the fixing holes, and the latch is inserted into one of the three layers of fixing holes and the inside of the matching holes.

7. The high temperature carbonization device for hard carbon materials according to claim 1, characterized in that: The driving part includes a matching gear located at the top of the straight rod-shaped rotating shaft, a rotating shaft close to the straight rod-shaped rotating shaft, a three-stage driving wheel arranged on the rotating shaft, and a motor. The motor is connected to the rotating shaft and drives the three-stage driving gear arranged on the rotating shaft to rotate. The three-stage driving wheel includes a primary driving wheel, a secondary driving wheel, and a third driving wheel. The primary driving wheel, the secondary driving wheel, and the third driving wheel mesh with the matching gear at different positions for movement.

8. The high-temperature carbonization device for hard carbon materials according to claim 1, characterized in that: The shell includes an outer shell, an inner shell, a heating layer, and an insulating layer. The inner shell is located inside the outer shell near one end of the stirring assembly. The heating layer is arranged on the outer peripheral side and the bottom of the inner shell. The insulating layer is located between the outer shell and the heating layer.

9. The high-temperature carbonization device for hard carbon materials according to claim 1, characterized in that: The stirring assembly includes a cross bar, a stirring rod, a central axis, and a motor. The cross bar is located at the bottom inner wall of the inner pot, the stirring rod is located at both ends of the cross bar, the central axis is located on the central axis of the carbonization part, one end is connected to the middle of the cross bar, and the other end passes through the bottom of the outer shell into the bottom cavity and is connected to the motor. The stirring rod extends toward the grinding part and extends to the middle of the carbonization part.

10. A high temperature carbonization device for hard carbon materials according to claim 9, characterized in that: A motor is arranged inside the bottom cavity, and the motor is connected to the central shaft.

Images