A continuous graphitization furnace for negative electrode materials

Abstract

The present invention relates to the technical field of graphitization furnaces for producing negative electrode materials, and discloses a continuous graphitization furnace for negative electrode materials, comprising a base, a heating mechanism being provided on the left side of the top of the base, and a dust removal mechanism being provided on the right side of the top of the base; the heating mechanism comprising a chassis, a heating barrel being provided on the top of the chassis, a rotating rod being rotatably connected to the middle of the chassis, a placement barrel being fixedly connected to the top of the rotation rod, and a sealing block being fixedly connected to the top of the heating barrel. A servo motor drives gear 2 to rotate, thereby driving gear 1 to rotate the connecting rod, further achieving the rotation of the placement barrel and the covering barrel, making heating more uniform and improving work efficiency. Dust is adsorbed by water and retained on the upper layer of the filter box, and gas is discharged through an exhaust pipe, making it convenient to pre-treat the generated flue gas, avoiding direct discharge and pollution of the environment, complying with the concept of environmental protection, and facilitating the rapid collection of processed dust.

Description

Technical Field

[0001] The invention relates to the technical field of graphitization furnaces for producing negative electrode materials, in particular to a continuous graphitization furnace for negative electrode materials. Background Art

[0002] The production of negative electrode materials mainly uses the Acheson graphitization furnace. The process is to use electricity to heat the graphitizable carbon to 3000℃ for graphitization modification to obtain graphitized negative electrode material. After reaching the set temperature, the power supply is stopped. The graphitized negative electrode material in the high-temperature state is naturally cooled to the furnace discharge temperature in the Acheson graphitization furnace and then begins to be discharged from the furnace.

[0003] Graphitization furnaces are primarily used for high-temperature processing, including the sintering and graphitization of carbon materials, graphitization of PI films, graphitization of thermal conductive materials, sintering of carbon fiber ropes, sintering and graphitizing of carbon fiber filaments, material purification, and other materials that can be graphitized in a carbon environment. Operating temperatures reach up to 3000°C, offering high production efficiency and energy conservation. Equipped with an online temperature measurement and control system, the furnace temperature can be monitored in real time and automatically adjusted. The graphitization process utilizes electrical resistance heat to heat the carbonaceous material to 2300-3000°C, transforming the amorphous chaotic layered structure of carbon into an ordered graphite crystalline structure. The energy for this transformation and atomic rearrangement is derived from the high-temperature heat treatment. As the heat treatment temperature increases, the interlayer spacing of the graphite decreases, generally ranging from 0.343 to 0.346 nm. This change is most pronounced at 2500°C, then gradually slows down at 3000°C until the entire graphitization process is complete.

[0004] The current Acheson graphitization furnace is an intermittent graphitization furnace that operates periodically. During the continuous heating process, the negative electrode material cannot be heated evenly, which increases the entire working time and reduces work efficiency. In addition, a large amount of smoke and dust will be generated during the heating process. Direct emission will pollute the environment and is not in line with environmental protection concepts. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a continuous graphitization furnace for negative electrode materials, which solves the problem that the current Acheson graphitization furnace is an intermittent graphitization furnace that operates periodically. During the continuous heating process, the negative electrode material cannot be heated evenly, resulting in an increase in the entire working time and reduced work efficiency. In addition, a large amount of smoke and dust will be generated during the heating process, and direct emission will cause pollution to the environment, which is not in line with the concept of environmental protection.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A continuous graphitization furnace for negative electrode materials, comprising a base, a heating mechanism is provided on the left side of the top of the base, and a dust removal mechanism is provided on the right side of the top of the base;

[0007] The heating mechanism includes a chassis, a heating barrel is provided on the top of the chassis, a rotating rod is rotatably connected to the middle of the chassis, the top of the rotating rod is fixedly connected to the placement barrel, a sealing block is fixedly connected to the top of the heating barrel, a hole is provided in the middle of the sealing block, a connecting rod is rotatably connected inside the hole, the bottom of the connecting rod is fixedly connected to the covering barrel, a threaded hole is provided on the top of the connecting rod, the inside of the threaded hole is threadedly connected to a mounting column, and the upper and middle part of the mounting column is fixedly connected to gear 1.

[0008] Preferably, the dust removal mechanism includes a water tank, which is fixedly connected to the right side of the top of the base, a filter box is provided inside the water tank, and hooks are fixedly connected to the front and rear sides of the filter box, and a cover plate is provided on the top of the water tank. The two sides of the top of the cover plate are connected to the air intake pipe, the top of the air intake pipe is connected to a hose, and the end of the hose is connected to a one-way valve.

[0009] Preferably, the heating mechanism further comprises a servo motor, and the front and rear sides of the top of the heating barrel are fixedly connected to the servo motor, and the output end of the servo motor is fixedly connected to gear 2, and the gear 2 is meshed with gear 1.

[0010] Preferably, the heating mechanism also includes a groove, a groove is provided in the middle of the left side of the base, a stepper motor is fixedly connected to the inside of the groove, the output end of the stepper motor is fixedly connected to the winding wheel 1, the bottom end of the rotating rod is fixedly connected to the winding wheel 2, and the winding wheel 1 is connected to the winding wheel 2 through a belt.

[0011] Preferably, the heating mechanism further includes cleaning cotton, and the cleaning cotton is provided in the middle of the rotating rod.

[0012] Preferably, the dust removal mechanism further includes an air outlet pipe, and the middle portion of the top end of the cover plate is connected to the air outlet pipe.

[0013] Preferably, the left and right tops of the heating barrel are respectively connected to the corresponding one-way valves, the front and rear left ends of the top of the base are fixedly connected with U-shaped handrails, the middle and lower parts of the U-shaped handrails are fixedly connected with connecting plates, the adjacent sides of the two connecting plates are fixedly connected with support plates, and the adjacent sides of the two support plates are respectively fixedly connected to the front and rear sides of the chassis.

[0014] Preferably, a controller is fixedly connected to the front side of the water tank, and the controller is electrically connected to the servo motor and the stepper motor respectively.

[0015] Preferably, a plurality of anti-collision blocks are fixedly connected to the right side of the water tank, universal wheels are fixedly connected to the four corners of the bottom of the base, and a plurality of special-shaped handrails are fixedly connected to the middle of the outer wall of the heating barrel.

[0016] Preferably, the left ends of the front and rear sides of the base are rotatably connected to a rotating shaft, the end of the rotating shaft is fixedly connected to a cushion block, and the top of the cushion block is fixedly connected to a lighting lamp.

[0017] Working principle: By placing the negative electrode material in the placement barrel, threading and fixing it with the threaded hole and the mounting column, the stepper motor is started to drive the winding wheel 1 to rotate. Under the transmission of the belt, the winding wheel 2 drives the rotating rod to rotate, and the servo motor drives the gear 2 to rotate so that the gear 1 drives the connecting rod to rotate, further achieving the rotation of the placement barrel and the covering barrel, making the heating more uniform and improving the work efficiency. The flue gas generated during the heating process enters the water tank through the one-way valve, hose and air inlet pipe in turn. The dust is absorbed by the water and remains on the upper layer of the filter box. The gas is discharged through the outlet pipe, which is convenient for pre-treatment of the generated flue gas to avoid direct discharge and pollution of the environment, in line with the concept of environmental protection. At the same time, the processed dust is easy to collect quickly.

[0018] The present invention provides a continuous graphitization furnace for negative electrode materials. It has the following beneficial effects:

[0019] 1. The present invention places the negative electrode material in a placement barrel, and threadedly connects and fixes it with a threaded hole and a mounting column. At the same time, a stepper motor is started to drive the winding wheel 1 to rotate. Under the transmission of the belt, the winding wheel 2 drives the rotating rod to rotate. The servo motor drives the gear 2 to rotate, so that the gear 1 drives the connecting rod to rotate, and further achieves the rotation of the placement barrel and the covering barrel, so that the heating is more uniform and the work efficiency is improved.

[0020] 2. The present invention allows the flue gas generated during the heating process to enter the water tank through a one-way valve, a hose and an air inlet pipe in sequence. The dust is adsorbed by the water and remains in the upper layer of the filter box. The gas is discharged through the outlet pipe, which facilitates the pretreatment of the generated flue gas and avoids direct discharge to pollute the environment. It is in line with the concept of environmental protection and at the same time facilitates the rapid collection of the treated dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a front view of the present invention;

[0023] Figure 3 is a side view of the present invention;

[0024] Figure 4 A top view of the present invention;

[0025] Figure 5 It is a side view of the partial structure of the present invention;

[0026] Figure 6 It is a three-dimensional partial structure exploded diagram of the present invention;

[0027] Figure 7 It is a diagram showing the local structure of the present invention;

[0028] Figure 8 It is a top view of the local structure of the present invention.

[0029] Among them, 1. Base; 2. Heating mechanism; 201. Chassis; 202. Rotating rod; 203. Place barrel; 204. Sealing block; 205. Hole; 206. Connecting rod; 207. Cover barrel; 208. Threaded hole; 209. Mounting column; 210. Gear 1; 211. Servo motor; 212. Gear 2; 213. Groove; 214. Stepping motor; 215. Winding wheel 1; 216. Winding wheel 2; 217. Belt; 218, heating barrel; 219, cleaning cotton; 3, dust removal mechanism; 301, water tank; 302, filter box; 303, hook; 304, cover; 305, air inlet pipe; 306, air outlet pipe; 307, one-way valve; 308, hose; 4, anti-collision block; 5, controller; 6, universal wheel; 7, special-shaped handrail; 8, U-shaped handrail; 9, connecting plate; 10, support plate; 11, rotating shaft; 12, pad; 13, lighting lamp. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see the attached Figure 1 -Attached Figure 8 , an embodiment of the present invention provides a continuous graphitization furnace for negative electrode materials, comprising a base 1, a heating mechanism 2 is provided on the top left side of the base 1, and a dust removal mechanism 3 is provided on the top right side of the base 1;

[0033] The heating mechanism 2 includes a chassis 201, a heating barrel 218 is provided on the top of the chassis 201, a rotating rod 202 is rotatably connected to the middle of the chassis 201, the top of the rotating rod 202 is fixedly connected to the placement barrel 203, a sealing block 204 is fixedly connected to the top of the heating barrel 218, a hole 205 is provided in the middle of the sealing block 204, a connecting rod 206 is rotatably connected inside the hole 205, a covering barrel 207 is fixedly connected to the bottom of the connecting rod 206, a threaded hole 208 is provided on the top of the connecting rod 206, the internal thread of the threaded hole 208 is threadedly connected to the mounting column 209, and the middle and upper part of the mounting column 209 is fixedly connected to a gear 1 210.

[0034] By placing the negative electrode material in the placement barrel 203, threading and fixing it with the threaded hole 208 and the mounting column 209, and starting the stepper motor 214 at the same time to drive the winding wheel 1 215 to rotate, under the transmission of the belt 217, the winding wheel 216 drives the rotating rod 202 to rotate, and the servo motor 211 drives the gear 2 212 to rotate, so that the gear 1 210 drives the connecting rod 206 to rotate, further achieving the rotation of the placement barrel 203 and the covering barrel 207, making the heating more uniform and improving the work efficiency.

[0035] The dust removal mechanism 3 includes a water tank 301, which is fixedly connected to the top right side of the base 1. A filter box 302 is provided inside the water tank 301, and hooks 303 are fixedly connected to the front and rear sides of the filter box 302. A cover plate 304 is provided on the top of the water tank 301, and the two sides of the top of the cover plate 304 are connected to the air intake pipe 305. The top of the air intake pipe 305 is connected to a hose 308, and the end of the hose 308 is connected to a one-way valve 307.

[0036] The flue gas generated during the heating process enters the water tank 301 through the one-way valve 307, the hose 308 and the air inlet pipe 305 in sequence. The dust is absorbed by the water and remains in the upper layer of the filter box 302. The gas is discharged through the outlet pipe 306, which facilitates the pretreatment of the generated flue gas and avoids direct discharge to pollute the environment, in line with the concept of environmental protection. At the same time, the treated dust is easy to collect quickly.

[0037] The heating mechanism 2 also includes a servo motor 211. The front and rear sides of the top of the heating barrel 218 are fixedly connected to the servo motor 211. The output end of the servo motor 211 is fixedly connected to the gear 2 212. The gear 2 212 is meshed with the gear 1 210.

[0038] The servo motor 21 drives the second gear 212 to rotate, and the second gear 212 is meshed with the first gear 210 so that the first gear 210 drives the mounting post 209 to rotate.

[0039] The heating mechanism 2 also includes a groove 213. The groove 213 is provided in the middle of the left side of the base 1. The inside of the groove 213 is fixedly connected to a stepper motor 214. The output end of the stepper motor 214 is fixedly connected to a winding wheel 1 215. The bottom end of the rotating rod 202 is fixedly connected to a winding wheel 2 216. The winding wheel 1 215 is connected to the winding wheel 2 216 through a belt 217.

[0040] The stepper motor 214 is installed inside the groove 213, and the stepper motor 214 drives the winding wheel 1 215 to rotate, and the winding wheel 216 is driven to rotate under the transmission of the belt 217, so that the winding wheel 216 rotates and the rotating rod 202 is driven to rotate at the same time, thereby further achieving the rotation of the placing barrel 203 and the covering barrel 207, making the heating more uniform and improving the work efficiency.

[0041] The heating mechanism 2 further includes cleaning cotton 219 , and the cleaning cotton 219 is provided in the middle of the rotating rod 202 .

[0042] By installing cleaning cotton 219 on the outer wall of the rotating rod 202, the entire heating barrel 218 can be better wiped when it is disassembled for cleaning.

[0043] The dust removal mechanism 3 further includes an air outlet pipe 306 , and the middle portion of the top end of the cover plate 304 is connected to the air outlet pipe 306 .

[0044] The gas in the smoke and dust passing through the one-way valve 307 , the hose 308 and the air inlet pipe 305 is discharged through the air outlet pipe 306 .

[0045] The left and right tops of the heating barrel 218 are respectively connected to the corresponding one-way valves 307. The left ends of the front and rear sides of the top of the base 1 are fixedly connected with U-shaped handrails 8. The middle and lower parts of the U-shaped handrails 8 are fixedly connected with connecting plates 9. The adjacent sides of the two connecting plates 9 are fixedly connected with support plates 10. The adjacent sides of the two support plates 10 are respectively fixedly connected to the front and rear sides of the chassis 201.

[0046] A U-shaped support rod 8 is fixedly connected to the left end of the front and rear sides of the top of the base 1, and the support plate 10 connects the connecting plate to the chassis 201, thereby supporting and fixing the chassis 201, thereby stably fixing the heating barrel 218.

[0047] The front side of the water tank 301 is fixedly connected to a controller 5 , which is electrically connected to the servo motor 211 and the stepper motor 214 .

[0048] Since the controller 5 is fixedly connected to the front side of the water tank 301 , it is convenient to control the operation of the servo motor 211 and the stepping motor 214 respectively through the controller 5 .

[0049] A plurality of anti-collision blocks 4 are fixedly connected to the right side of the water tank 301, universal wheels 6 are fixedly connected to the four corners of the bottom of the base 1, and a plurality of special-shaped handrails 7 are fixedly connected to the middle of the outer wall of the heating barrel 218.

[0050] The water tank 301 is protected by the anti-collision block 4, and can be moved in all directions with the help of the universal wheel 6, and the heating barrel 218 can be easily taken out through the special-shaped handrail 7.

[0051] The left ends of the front and rear sides of the base 1 are rotatably connected to a rotating shaft 11 , the end of the rotating shaft 11 is fixedly connected to a cushion block 12 , and the top of the cushion block 12 is fixedly connected to a lighting lamp 13 .

[0052] The rotating shaft 11 is used to facilitate angle adjustment, and the lighting is then provided by the lighting lamp 13 .

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A continuous graphitization furnace for negative electrode materials, comprising a base (1), characterized in that: A heating mechanism (2) is provided on the left side of the top of the base (1), and a dust removal mechanism (3) is provided on the right side of the top of the base (1); The heating mechanism (2) comprises a chassis (201), a heating barrel (218) is provided on the top of the chassis (201), a rotating rod (202) is rotatably connected to the middle of the chassis (201), a top of the rotating rod (202) is fixedly connected to a placement barrel (203), a sealing block (204) is fixedly connected to the top of the heating barrel (218), a hole (205) is provided in the middle of the sealing block (204), a connecting rod (206) is rotatably connected inside the hole (205), a covering barrel (207) is fixedly connected to the bottom of the connecting rod (206), a threaded hole (208) is provided on the top of the connecting rod (206), a mounting post (209) is threadedly connected to the inside of the threaded hole (208), and a gear (209) is fixedly connected to the middle and upper part of the mounting post (209). 210), the heating mechanism (2) further comprises a servo motor (211), the front and rear sides of the top of the heating barrel (218) are fixedly connected to the servo motor (211), the output end of the servo motor (211) is fixedly connected to the second gear (212), the second gear (212) and the first gear (210) are meshed and connected, the heating mechanism (2) further comprises a groove (213), the left middle part of the base (1) is provided with a groove (213), the interior of the groove (213) is fixedly connected to the stepping motor (214), the output end of the stepping motor (214) is fixedly connected to the first winding wheel (215), the bottom end of the rotating rod (202) is fixedly connected to the second winding wheel (216), the first winding wheel (215) is connected to the second winding wheel (216) through a belt (217).

2. The continuous graphitization furnace for negative electrode materials according to claim 1, characterized in that: The dust removal mechanism (3) comprises a water tank (301), the water tank (301) is fixedly connected to the right side of the top of the base (1), a filter box (302) is provided inside the water tank (301), the front and rear sides of the filter box (302) are fixedly connected to hooks (303), a cover plate (304) is provided on the top of the water tank (301), both sides of the top of the cover plate (304) are connected to an air intake pipe (305), the top end of the air intake pipe (305) is connected to a hose (308), and the end of the hose (308) is connected to a one-way valve (307).

3. The continuous graphitization furnace for negative electrode materials according to claim 1, characterized in that: The heating mechanism (2) further comprises cleaning cotton (219), and the cleaning cotton (219) is provided in the middle of the rotating rod (202).

4. The continuous graphitization furnace for negative electrode materials according to claim 2, characterized in that: The dust removal mechanism (3) further comprises an air outlet pipe (306), and the middle portion of the top end of the cover plate (304) is connected to the air outlet pipe (306).

5. The continuous graphitization furnace for negative electrode materials according to claim 1, characterized in that: The left and right tops of the heating barrel (218) are respectively connected to the corresponding one-way valves (307); the left ends of the front and rear sides of the top of the base (1) are fixedly connected to U-shaped support rods (8); the middle and lower parts of the U-shaped support rods (8) are fixedly connected to connecting plates (9); the adjacent sides of the two connecting plates (9) are fixedly connected to support plates (10); and the adjacent sides of the two support plates (10) are respectively fixedly connected to the front and rear sides of the chassis (201).

6. The continuous graphitization furnace for negative electrode materials according to claim 2, characterized in that: A controller (5) is fixedly connected to the front side of the water tank (301), and the controller (5) is electrically connected to the servo motor (211) and the stepper motor (214) respectively.

7. The continuous graphitization furnace for negative electrode materials according to claim 2, characterized in that: The right side of the water tank (301) is fixedly connected to a plurality of anti-collision blocks (4), the four corners of the bottom of the base (1) are fixedly connected to universal wheels (6), and the middle part of the outer wall of the heating barrel (218) is fixedly connected to a plurality of special-shaped support rods (7).

8. The continuous graphitization furnace for negative electrode materials according to claim 1, characterized in that: The left ends of the front and rear sides of the base (1) are both rotatably connected to a rotating shaft (11), the end of the rotating shaft (11) is fixedly connected to a cushion block (12), and the top of the cushion block (12) is fixedly connected to a lighting lamp (13).

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