Carbonization device for lithium battery negative electrode material production

By dividing the drum mixing chamber into multiple small chambers and optimizing heat dissipation, the problem of uneven heating in traditional drum design is solved, and a more efficient carbonization process of lithium battery negative electrode materials is achieved.

CN120684901APending Publication Date: 2025-09-23JIANGSU DINGXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202510876032.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2025-09-23

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Abstract

The invention discloses a carbonization device for lithium battery negative electrode material production, which comprises a base, and also comprises a feeding mechanism fixedly connected to the center position of the outer wall of the top end of the base and used for feeding; the carbonization mechanisms are fixedly mounted on the outer wall of the top end of the base at equal intervals; the cooling mechanism is installed on the inner wall of the top end of the base and used for discharging, the feeding mechanism, the carbonization mechanism and the cooling mechanism are sequentially arranged from top to bottom, and the carbonization mechanism comprises a roller mixing bin used for mixing materials and capable of rotating; the electric heater II is embedded in the inner wall of the roller mixing bin and is used for heating the materials; the carbonization device for lithium battery negative electrode material production has the advantages that the contact area of the material and a thermal medium is increased, the heat conduction rate is increased, the duration needed by carbonization can be effectively shortened, and the working efficiency is improved to a great extent.
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Description

Technical Field

[0001] The present invention relates to the technical field of carbonization of lithium battery negative electrode materials, and in particular to a carbonization device for producing lithium battery negative electrode materials. Background Art

[0002] Carbonization of lithium battery anode materials is a key process in lithium-ion battery production. It forms an amorphous or graphitized carbon layer, enhancing the material's conductivity and reducing the electrode's internal resistance. It also enhances structural stability, reduces surface defects and impurities, and inhibits volume expansion during charge and discharge. This process directly impacts battery energy density and safety, and is a core step in high-performance lithium battery manufacturing. Its efficiency directly impacts the material's conductivity and structural stability.

[0003] The current mainstream drum-type mixing bin carbonization device has significant technical bottlenecks: the traditional single-drum design is limited by the limited heat exchange area, resulting in uneven heating of the material. The carbonization time needs to be extended (usually 8-12 hours) to compensate for the insufficient heat exchange, resulting in low heat transfer efficiency and a significant increase in energy consumption. Summary of the Invention

[0004] The present invention discloses a carbonization device for producing negative electrode materials for lithium batteries, which aims to solve the technical problems that the traditional single-drum design is limited by the limited heat exchange area, resulting in uneven heating of the material, the need to extend the carbonization time to compensate for insufficient heat exchange, resulting in low heat transfer efficiency and a significant increase in energy consumption.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A carbonization device for producing negative electrode materials for lithium batteries comprises a base, and further comprises: a feeding mechanism fixedly connected to the center of the top outer wall of the base for feeding materials; a plurality of carbonization mechanisms fixedly installed at equal intervals on the top outer wall of the base; a cooling mechanism installed on the top inner wall of the base for unloading materials, wherein the feeding mechanism, the carbonization mechanism, and the cooling mechanism are arranged in order from top to bottom;

[0007] The carbonization mechanism includes: a drum mixing chamber for mixing materials and capable of self-rotation; a second electric heater embedded in the inner wall of the drum mixing chamber for heating materials; a hydraulic rod for bending the drum mixing chamber upward and downward by telescoping;

[0008] Each of the carbonization mechanisms also includes: a sealing door installed outside the feed port of the drum mixing bin; a support block connected to one end of the drum mixing bin through a hinge; a bearing seat 1, in which the support block is rotatably connected; a second motor fixedly installed on one side outer wall of the bearing seat 1, and the output end of the second motor is connected to the support block through a coupling.

[0009] By providing a carbonization mechanism, the extension of the hydraulic rod can drive the drum mixing bin upward to a vertical state, and then open the sealing door, and the raw materials and adhesives can be guided by the feeding mechanism to enter each drum mixing bin from the feeding port respectively. Then the drum mixing bin returns to a horizontal state and can realize self-rotation. Thus, the traditional large drum is split into a plurality of small drum mixing bins, which can reduce the temperature gradient in the traditional large drum, ensure that the heating uniformity of the material is improved, and at the same time significantly increase the total internal surface area compared with a single large drum, thereby increasing the contact area between the material and the heat medium, accelerating the heat conduction rate, and effectively reducing the time required for carbonization, thereby greatly improving work efficiency.

[0010] In a preferred embodiment, each of the carbonization mechanisms further comprises: a sleeve, movably sleeved on the circumferential outer wall of the drum mixing bin, and the outer walls on both sides of the sleeve facing each other are fixedly connected to side support plates; two support shafts, respectively fixedly connected to one side outer wall of the two side support plates, and one end of one of the support shafts is fixedly connected to gear 2; two bearing seats 2, the two support shafts are respectively rotatably connected to the inner side of the bearing seat 2; a bottom frame, fixedly connected to the top outer wall of the base, and the bearing seat 1 and the bearing seat 2 are simultaneously fixedly connected to the top outer wall of the bottom frame;

[0011] Each of the carbonization mechanisms also includes: a clamping frame, fixedly connected to the outer wall of one side of one of the bearing seats; a rack, movably clamped in the clamping frame and movably engaged with the gear seat; a slider, fixedly connected to the outer wall of one side of the rack, a slide groove is provided on one side of the clamping frame, and the slider passes through the slide groove; a hydraulic rod, an output end of which is fixedly connected to the outer wall of one side of the slider; a support frame, fixedly connected to the outer wall of one side of the bearing seat, and the hydraulic rod is fixedly connected to the support frame.

[0012] In a preferred embodiment, the cooling mechanism includes: a collecting tank, wherein the top inner wall of the base is provided with a placement groove, and the collecting tank is movably engaged in the placement groove, and the bottom end of the collecting tank is provided with a plurality of leakage holes; a vibrator, fixedly connected to the bottom inner wall of the base, and the output end of the vibrator is movably attached to the bottom outer wall of the collecting tank;

[0013] The cooling mechanism further includes: a plurality of mounting grooves penetrating the circumferential inner wall of the base; a plurality of mounting racks respectively fixedly connected to some of the mounting grooves; and a plurality of ducting fans respectively fixedly mounted on the plurality of mounting racks.

[0014] By setting up a cooling mechanism, the mixture falls into the collection tank, and the vibrator can drive the collection tank to vibrate with a small amplitude, so that the mixture is gradually spread on the bottom of the collection tank. Then, the air inside the base is driven by the blowing of multiple fans, and the heat is taken away through the leakage holes and the heat conduction of the collection tank, thereby optimizing the heat dissipation efficiency.

[0015] In a preferred embodiment, the feeding mechanism includes: a support fixedly connected to the top outer wall of the base; a plurality of connecting frames fixedly connected to the circumferential outer wall of the support at equal intervals, and the tops of the plurality of connecting frames are fixedly connected to the connecting trough body; a preheating chamber fixedly connected to the top inner wall of the connecting trough body, and the circumferential outer wall of the preheating chamber is fixedly wrapped with an electric heater; a funnel fixedly connected to the bottom inner wall of the connecting trough body;

[0016] The feeding mechanism further includes: a second conical support plate fixedly connected to the inner wall of the funnel; a first conical support plate rotatably connected to the connecting trough body, and the top outer wall and the bottom inner wall of the first conical support plate are respectively movably fitted to the inner wall of the connecting trough body, and the bottom outer wall of the first conical support plate is simultaneously movably fitted to the top outer wall of the second conical support plate; a plurality of through grooves equidistantly provided on the second conical support plate and the first conical support plate; a gear ring surrounding and fixedly connected to the circumferential outer wall of the first conical support plate;

[0017] The feeding mechanism further includes: a motor fixedly mounted on the outer wall of the bottom end of the connecting trough body, and an output end thereof passes through the bottom end of the connecting trough body and is fixedly connected to a gear 1; a notch is provided through one side of the connecting trough body, and the gear 1 passes through the notch and engages with the gear ring;

[0018] The feeding mechanism also includes: an insulating injection pipe, which is fixedly connected to the top inner wall of the preheating bin and is located at the center of the preheating bin, and conical support plate 1 and conical support plate 2 are movably fitted around the circumferential outer wall of the insulating injection pipe; a conical guide frame, which is fixedly connected to the top outer wall of the support, and the outer wall of the conical guide frame is fixedly connected to multiple partitions; multiple guide grooves are fixedly connected to the bottom outer wall of the conical guide frame and are correspondingly connected to the multiple partitions.

[0019] By providing a feeding mechanism, since the binder and raw materials need to be mixed during carbonization, and the binder needs to be preheated before carbonization mixing to volatilize its internal moisture, the raw materials do not need to be preheated and can be directly mixed with the preheated binder. In the feeding mechanism, the binder can be introduced from the top of the preheating bin, and the raw materials can be introduced from the top of the insulated injection pipe, which can respectively realize the preheating of the binder and the direct entry of the raw materials, thereby realizing separate processing of different materials, with higher adaptability, avoiding secondary turnover and improving work efficiency.

[0020] From the above, it can be seen that a carbonization device for producing negative electrode materials for lithium batteries includes a base, and also includes: a feeding mechanism, fixedly connected to the center position of the top outer wall of the base, for feeding; a plurality of carbonization mechanisms, equidistantly fixedly installed on the top outer wall of the base; a cooling mechanism, installed on the top inner wall of the base, for unloading, the feeding mechanism, the carbonization mechanism and the cooling mechanism are arranged in order from top to bottom, and the carbonization mechanism includes: a roller mixing bin, for mixing materials and capable of self-rotation; a second electric heater, embedded in the inner wall of the roller mixing bin, for heating materials; a hydraulic rod, which drives the roller mixing bin to bend upward and downward by telescoping. The carbonization device for producing negative electrode materials for lithium batteries provided by the present invention has the technical effect of increasing the contact area between the material and the heat medium, accelerating the heat conduction rate, effectively reducing the time required for carbonization, and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a carbonization device for producing lithium battery negative electrode materials proposed by the present invention.

[0022] Figure 2 This is a schematic diagram of the overall appearance of the carbonization mechanism of a carbonization device for producing lithium battery negative electrode materials proposed by the present invention.

[0023] Figure 3 This is a schematic diagram of the disassembly of the carbonization mechanism of a carbonization device for producing lithium battery negative electrode materials proposed in the present invention.

[0024] Figure 4 This is a schematic diagram of the disassembly of the feeding mechanism of a carbonization device for producing lithium battery negative electrode materials proposed by the present invention.

[0025] Figure 5 This is a schematic diagram of the disassembly of the cooling mechanism of a carbonization device for producing lithium battery negative electrode materials proposed in the present invention.

[0026] In the figure: 1. Feeding mechanism; 2. Carbonization mechanism; 3. Cooling mechanism; 4. Base; 101. Electric heater 1; 102. Preheating chamber; 103. Connecting trough; 104. Funnel; 105. Connecting frame; 106. Support; 107. Guide groove; 108. Cone guide frame; 109. Partition; 110. Gear ring; 111. Cone support plate 1; 112. Through groove; 113. Cone support plate 2; 114. Motor 1; 115. Gear 1; 116. Insulated injection pipe; 201. Drum mixing chamber; 202 , sleeve frame; 203, side support plate; 204, gear 2; 205, slider; 206, support frame; 207, base frame; 208, hydraulic rod; 209, motor 2; 210, bearing seat 1; 211, support block; 212, hinge; 213, door closure; 214, bearing seat 2; 215, rack; 216, clamping frame; 217, support shaft; 301, collecting tank; 302, leak hole; 303, mounting frame; 304, fan guide air; 305, placement slot; 306, mounting slot; 307, vibrator. DETAILED DESCRIPTION

[0027] 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.

[0028] The present invention discloses a carbonization device for producing negative electrode materials for lithium batteries, which is mainly used in the carbonization of negative electrode materials for lithium batteries.

[0029] Reference Figure 1 and Figure 2 A carbonization device for producing negative electrode materials for lithium batteries, comprising a base 4, and further comprising:

[0030] The feeding mechanism 1 is fixedly connected to the center of the top outer wall of the base 4 and is used for feeding;

[0031] A plurality of carbonizing mechanisms 2 are fixedly mounted at equal intervals on the top outer wall of the base 4;

[0032] The cooling mechanism 3 is installed on the inner wall of the top of the base 4 and is used for feeding. The feeding mechanism 1, the carbonizing mechanism 2 and the cooling mechanism 3 are arranged in order from top to bottom;

[0033] The carbonization mechanism 2 includes:

[0034] The drum mixing bin 201 is used to mix materials and can rotate;

[0035] Electric heater 2, embedded in the inner wall of the drum mixing bin 201, for heating the material;

[0036] The hydraulic rod 208 drives the drum mixing bin 201 to bend upward and downward by telescoping.

[0037] Reference Figure 2 and Figure 3 In a preferred embodiment, each carbonization mechanism 2 further comprises:

[0038] The sealing door 213 is installed outside the feed port of the drum mixing bin 201;

[0039] The support block 211 is connected to one end of the drum mixing bin 201 via a hinge 212;

[0040] Bearing seat 1 210, support block 211 is rotatably connected in bearing seat 1 210;

[0041] Motor 2 209 is fixedly mounted on one side outer wall of bearing seat 1 210 , and the output end of motor 209 is connected to support block 211 via a coupling.

[0042] Reference Figure 2 and Figure 3 In a preferred embodiment, each carbonization mechanism 2 further comprises:

[0043] The sleeve frame 202 is movably sleeved on the circumferential outer wall of the drum mixing bin 201, and the outer walls on both sides of the sleeve frame 202 are fixedly connected with side support plates 203 respectively;

[0044] Two support shafts 217 are fixedly connected to one side outer wall of the two side support plates 203, and one end of one of the support shafts 217 is fixedly connected to the second gear 204;

[0045] Two bearing seats 214, two support shafts 217 are rotatably connected to the bearing seats 214;

[0046] The bottom frame 207 is fixedly connected to the top outer wall of the base 4 , and the bearing seat 1 210 and the bearing seat 2 214 are also fixedly connected to the top outer wall of the bottom frame 207 .

[0047] Reference Figure 2 and Figure 3 In a preferred embodiment, each carbonization mechanism 2 further comprises:

[0048] A clamping frame 216 is fixedly connected to an outer wall of one side of the second bearing seat 214;

[0049] The rack 215 is movably engaged in the engaging frame 216 and movably meshes with the second gear 204;

[0050] The slider 205 is fixedly connected to the outer wall of one side of the rack 215. A sliding groove is provided on one side of the clamping frame 216, and the slider 205 passes through the sliding groove.

[0051] The hydraulic rod 208, the output end of which is fixedly connected to the outer wall of one side of the slider 205, can push the rack 215 forward by extending the hydraulic rod 208, drive the gear 204 to rotate, and use the support shaft 217 as the rotating shaft support to drive the sleeve 202 to rotate upward. At the same time, based on the setting of the hinge 212, the roller mixing bin 201 can be driven to move upward to a vertical state during the movement of the sleeve 202. After that, the sealing door 213 is opened, and the raw materials and adhesives can be respectively introduced into each roller mixing bin 201 from the feed port through the guidance of the feeding mechanism 1. Subsequently, the roller mixing bin 201 is driven to return to a horizontal state by the hydraulic rod 208, and can be driven to rotate under the limiting effect of the sleeve 202 and the driving effect of the motor 209;

[0052] The support frame 206 is fixedly connected to the outer wall of one side of one of the bearing seats 214, and the hydraulic rod 208 is fixedly connected to the support frame 206. Thus, the traditional large drum is split into a plurality of small drum mixing chambers 201, which can reduce the temperature gradient in the traditional large drum, ensure that the heating uniformity of the material is improved, and at the same time significantly increase the total internal surface area compared to a single large drum, thereby increasing the contact area between the material and the heat medium, accelerating the heat conduction rate, and effectively reducing the time required for carbonization, thereby greatly improving work efficiency.

[0053] Reference Figure 4 In a preferred embodiment, the feeding mechanism 1 comprises:

[0054] The support 106 is fixedly connected to the top outer wall of the base 4;

[0055] A plurality of connecting frames 105 are fixedly connected to the circumferential outer wall of the support 106 at equal intervals, and the top ends of the plurality of connecting frames 105 are fixedly connected to the connecting trough 103 at the same time;

[0056] The preheating chamber 102 is fixedly connected to the inner wall of the top end of the connecting tank 103, and the outer circumferential wall of the preheating chamber 102 is fixedly wrapped with an electric heater 101. Since the binder and the raw materials need to be mixed during carbonization, and the binder needs to be preheated before carbonization and mixing to volatilize its internal moisture, the raw materials do not need to be preheated and can be directly mixed with the preheated binder. In the feeding mechanism 1, the binder can be fed into the preheating chamber 102 from the top end;

[0057] The funnel 104 is fixedly connected to the inner wall of the bottom end of the connecting groove body 103 .

[0058] Reference Figure 4 In a preferred embodiment, the feeding mechanism 1 further comprises:

[0059] The second conical support plate 113 is fixedly connected to the inner wall of the funnel 104;

[0060] The conical support plate 111 is rotatably connected to the connecting groove 103, and the top outer wall and bottom inner wall of the conical support plate 111 are respectively movably fitted to the inner wall of the connecting groove 103, and the bottom outer wall of the conical support plate 111 is simultaneously movably fitted to the top outer wall of the conical support plate 2 113;

[0061] A plurality of through slots 112 are equidistantly provided through the second conical support plate 113 and the first conical support plate 111;

[0062] The gear ring 110 surrounds and is fixedly connected to the circumferential outer wall of the conical support plate 111.

[0063] Reference Figure 4 In a preferred embodiment, the feeding mechanism 1 further comprises:

[0064] The motor 114 is fixedly mounted on the outer wall of the bottom end of the connecting trough 103, and its output end passes through the bottom end of the connecting trough 103 and is fixedly connected to the gear 115. After being heated by the electric heater 101, the temperature inside the preheating chamber 102 is increased, so that the adhesive can remain in the preheating chamber 102 for preheating. Subsequently, the motor 114 drives the gear ring 110 to rotate through the gear 115, so that the grooves 112 of the conical support plate 111 and the conical support plate 2 113 overlap, causing the adhesive to fall. The continuous rotation of the conical support plate 111 can help promote the adhesive to fall.

[0065] A notch is provided through one side of the connecting slot 103 , and the gear 115 passes through the notch and meshes with the gear ring 110 .

[0066] Reference Figure 4 In a preferred embodiment, the feeding mechanism 1 further comprises:

[0067] The insulating injection pipe 116 is fixedly connected to the inner wall of the top of the preheating chamber 102 and is located at the center of the preheating chamber 102. The conical support plate 111 and the conical support plate 2 113 are movably fitted around the outer wall of the insulating injection pipe 116, so that the raw materials enter from the top of the insulating injection pipe 116.

[0068] The cone guide frame 108 is fixedly connected to the outer wall of the top end of the support 106, and the outer wall of the cone guide frame 108 is fixedly connected to a plurality of partitions 109;

[0069] Multiple guide grooves 107 are fixedly connected to the outer wall of the bottom end of the cone guide frame 108 and are correspondingly connected to multiple partitions 109. As the adhesive or raw material falls and passes through the top surface of the cone guide frame 108, it is separated and guided by the partition 109 and multiple guide grooves 107, so that the adhesive or raw material can be evenly divided and fall into multiple drum mixing bins 201 for mixing. Under this structure, different materials can be processed separately, with higher adaptability, while avoiding secondary turnover and improving work efficiency.

[0070] Reference Figure 5 In a preferred embodiment, the cooling mechanism 3 includes:

[0071] The collecting tank 301 has a placement groove 305 formed on the inner wall of the top of the base 4, and the collecting tank 301 is movably connected to the placement groove 305. The bottom of the collecting tank 301 has a plurality of leakage holes 302 formed on it.

[0072] The vibrator 307 is fixedly connected to the inner wall of the bottom end of the base 4, and the output end of the vibrator 307 is movably fitted to the outer wall of the bottom end of the collecting tank 301. When the hydraulic rod 208 drives the rack 215 to retract and drives the roller mixing bin 201 to tilt downward through engagement with the gear 2 204, the sealing door 213 is opened to allow the mixture inside the roller mixing bin 201 to fall into the collecting tank 301. Through the transmission of the bottom vibrator 307, the collecting tank 301 can be driven to vibrate with a small amplitude, and the mixture can be gradually spread on the bottom of the collecting tank 301.

[0073] Reference Figure 5 In a preferred embodiment, the cooling mechanism 3 further comprises:

[0074] A plurality of mounting grooves 306 are provided through the inner circumferential wall of the base 4;

[0075] A plurality of mounting brackets 303 are respectively fixedly connected to some of the mounting slots 306;

[0076] Multiple guide fans 304 are fixedly installed on multiple mounting frames 303 respectively, and then the air inside the base 4 is driven by the blowing of the multiple guide fans 304, and the heat is taken away through the leakage holes 302 and the heat conduction of the collection tank 301, thereby optimizing the heat dissipation efficiency. After the heat dissipation is completed, the collection tank 301 can be directly removed and used as a turnover container to facilitate the turnover of the mixture.

[0077] Working principle: By extending the hydraulic rod 208, the rack 215 can be pushed forward, driving the gear 204 to rotate, and the support shaft 217 is used as the rotating shaft support to drive the sleeve 202 to rotate upward. At the same time, based on the setting of the hinge 212, the roller mixing bin 201 can be driven to a vertical state synchronously during the movement of the sleeve 202. After that, the sealing door 213 is opened, and the raw materials and adhesives can be guided by the feeding mechanism 1 to enter each roller mixing bin 201 from the feeding port. Then, the hydraulic rod 208 drives the roller mixing bin 201 to return to a horizontal state, and the roller mixing bin 201 can be driven to rotate under the limiting effect of the sleeve 202 and the driving effect of the motor 209. In this way, the traditional large drum is divided into a plurality of small roller mixing bins 201. The structure can reduce the temperature gradient in the traditional large drum, ensure that the material is heated uniformly, and at the same time, the total internal surface area is significantly increased compared to a single large drum, thereby increasing the contact area between the material and the heat medium, accelerating the heat conduction rate, effectively reducing the time required for carbonization, and greatly improving work efficiency.

[0078] 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, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A carbonization device for producing negative electrode materials for lithium batteries, comprising a base (4), characterized in that: Also includes: A feeding mechanism (1) is fixedly connected to the center of the top outer wall of the base (4) and is used for feeding; A plurality of carbonization mechanisms (2) are fixedly mounted at equal intervals on the top outer wall of the base (4); The cooling mechanism (3) is installed on the inner wall of the top end of the base (4) and is used for feeding. The feeding mechanism (1), the carbonizing mechanism (2) and the cooling mechanism (3) are arranged in order from top to bottom. The carbonization mechanism (2) comprises: A drum mixing bin (201) is used for mixing materials and can rotate on its own; The second electric heater is embedded in the inner wall of the drum mixing bin (201) and is used to heat the material; The hydraulic rod (208) drives the drum mixing bin (201) to bend upward and downward by telescoping.

2. A carbonization device for producing lithium battery negative electrode materials according to claim 1, characterized in that: Each of the carbonization mechanisms (2) further comprises: A sealing door (213) is installed outside the feed port of the drum mixing bin (201); A support block (211) is connected to one end of the drum mixing bin (201) via a hinge (212); Bearing seat 1 (210), support block (211) is rotatably connected in bearing seat 1 (210); The second motor (209) is fixedly mounted on an outer wall of one side of the bearing seat (210), and the output end of the second motor (209) is connected to the support block (211) through a coupling.

3. A carbonization device for producing lithium battery negative electrode materials according to claim 2, characterized in that: Each of the carbonization mechanisms (2) further comprises: The sleeve (202) is movably sleeved on the circumferential outer wall of the drum mixing bin (201), and the outer walls on both sides of the sleeve (202) facing each other are respectively fixedly connected with side support plates (203); Two support shafts (217) are respectively fixedly connected to one side outer wall of the two side support plates (203), and one end of one of the support shafts (217) is fixedly connected to a second gear (204); Two bearing seats (214), two support shafts (217) are rotatably connected to the bearing seats (214); The bottom frame (207) is fixedly connected to the top outer wall of the base (4), and the bearing seat 1 (210) and the bearing seat 2 (214) are fixedly connected to the top outer wall of the bottom frame (207) at the same time.

4. A carbonization device for producing lithium battery negative electrode materials according to claim 3, characterized in that: Each of the carbonization mechanisms (2) further comprises: A clamping frame (216) is fixedly connected to an outer wall of one side of one of the bearing seats (214); The rack (215) is movably engaged in the engaging frame (216) and is movably engaged with the second gear (204); The slider (205) is fixedly connected to the outer wall of one side of the rack (215); a slide groove is provided through one side of the clamping frame (216), and the slider (205) passes through the slide groove; A hydraulic rod (208), the output end of which is fixedly connected to an outer wall of one side of the slider (205); The support frame (206) is fixedly connected to an outer wall of one side of one of the bearing seats (214), and the hydraulic rod (208) is fixedly connected to the support frame (206).

5. The carbonization device for producing negative electrode materials for lithium batteries according to claim 1, characterized in that: The feeding mechanism (1) comprises: A support (106) is fixedly connected to the top outer wall of the base (4); A plurality of connecting frames (105) are fixedly connected to the circumferential outer wall of the support (106) at equal intervals, and the top ends of the plurality of connecting frames (105) are simultaneously fixedly connected to the connecting trough body (103); The preheating chamber (102) is fixedly connected to the inner wall of the top end of the connecting tank (103), and the outer circumferential wall of the preheating chamber (102) is fixedly wrapped with an electric heater (101); The funnel (104) is fixedly connected to the inner wall of the bottom end of the connecting trough body (103).

6. A carbonization device for producing lithium battery negative electrode materials according to claim 5, characterized in that: The feeding mechanism (1) further comprises: A second conical support plate (113) fixedly connected to the inner wall of the funnel (104); The conical support plate 1 (111) is rotatably connected to the connecting groove body (103), and the top outer wall and the bottom inner wall of the conical support plate 1 (111) are respectively movably fitted to the inner wall of the connecting groove body (103), and the bottom outer wall of the conical support plate 1 (111) is simultaneously movably fitted to the top outer wall of the conical support plate 2 (113); A plurality of through slots (112) are equidistantly arranged through the second conical support plate (113) and the first conical support plate (111); The gear ring (110) surrounds and is fixedly connected to the circumferential outer wall of the conical support plate (111).

7. A carbonization device for producing lithium battery negative electrode materials according to claim 6, characterized in that: The feeding mechanism (1) further comprises: The motor (114) is fixedly mounted on the outer wall of the bottom end of the connecting trough (103), and the output end thereof passes through the bottom end of the connecting trough (103) and is fixedly connected to a gear 1 (115); A notch is provided through one side of the connecting groove body (103), and the gear 1 (115) passes through the notch and meshes with the gear ring (110).

8. A carbonization device for producing negative electrode materials for lithium batteries according to claim 7, characterized in that: The feeding mechanism (1) further comprises: The heat-insulating injection pipe (116) is fixedly connected to the top inner wall of the preheating chamber (102) and is located at the center of the preheating chamber (102). The conical support plate 1 (111) and the conical support plate 2 (113) are movably fitted around the circumferential outer wall of the heat-insulating injection pipe (116). A cone guide frame (108) is fixedly connected to the outer wall of the top end of the support (106), and a plurality of partitions (109) are fixedly connected to the outer wall of the cone guide frame (108); A plurality of guide grooves (107) are fixedly connected to the outer wall of the bottom end of the cone guide frame (108) and are correspondingly connected to a plurality of partitions (109).

9. The carbonization device for producing lithium battery negative electrode materials according to claim 1, characterized in that: The cooling mechanism (3) comprises: The collecting tank (301) is provided with a placement tank (305) through the inner wall of the top end of the base (4), and the collecting tank (301) is movably connected to the placement tank (305), and a plurality of leakage holes (302) are provided through the bottom end of the collecting tank (301); The vibrator (307) is fixedly connected to the inner wall of the bottom end of the base (4), and the output end of the vibrator (307) is movably attached to the outer wall of the bottom end of the collecting tank (301).

10. A carbonization device for producing negative electrode materials for lithium batteries according to claim 9, characterized in that: The cooling mechanism (3) further comprises: A plurality of mounting grooves (306) are provided through the inner circumferential wall of the base (4); A plurality of mounting frames (303) are respectively fixedly connected to some of the mounting slots (306); The plurality of ducting fans (304) are respectively fixedly mounted on the plurality of mounting frames (303).