Sintering equipment for hard carbon negative electrode material

Abstract

The utility model relates to the technical field of production and manufacturing equipment, and provides a sintering device for a hard carbon cathode material, which comprises a support frame, the top of the support frame is fixedly connected with a hearth, a material collecting bin and a heat exchange collecting box, the top of the material collecting bin is fixedly connected with a first vertical shaft, the top of the first vertical shaft is fixedly connected with a hopper, and the top of the second vertical shaft is fixedly connected with the heat exchange collecting box. A hydraulic cylinder is fixedly connected to the top of the supporting frame, a telescopic rod is arranged on the outer surface of the hydraulic cylinder, a push head is fixedly connected to the side, away from the hydraulic cylinder, of the telescopic rod, a partition plate is fixedly connected to the inner wall of the top of the material collecting bin, and a second vertical shaft is fixedly connected to the side, away from the material collecting bin, of the inner surface of the hearth. A cooling box is fixedly arranged on the outer surface of the second vertical shaft in a sleeving mode, a large amount of heat loss caused during feeding and discharging is avoided, the heat utilization rate is greatly increased, the structure is simple, the sealing performance is good, meanwhile, products are evenly heated, and the sintering time and the sintering period are shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of production and manufacturing equipment, in particular to a sintering device for hard carbon negative electrode materials. Background Art

[0002] The sintering equipment for hard carbon negative electrode materials plays a core role in improving battery performance, stability and production efficiency, and is an indispensable process link in the manufacture of modern new energy batteries.

[0003] Although current technology has many advantages, its disadvantage is that the sintering equipment needs to open the sealed door to achieve feeding and unloading. However, the opening of the sealed door will cause a large amount of heat loss, greatly reducing the utilization rate of heat. In addition, for sintering equipment that needs to open the sealed door frequently, its sealing is poor, which will cause a large amount of heat loss at the sealed door. At the same time, most sintering equipment uses bottom heating to sinter the product, resulting in the temperature of the side of the product farther from the heat source being lower than the temperature of the side closer to the heat source, causing uneven heating of the product and extending the sintering time and sintering cycle. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a sintering device for hard carbon negative electrode materials to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sintering device for hard carbon negative electrode materials, comprising: a support frame, the top of the support frame is fixedly connected to a furnace, a collection bin and a heat exchange collection box, the top of the collection bin is fixedly connected to a vertical shaft 1, the top of the vertical shaft 1 is fixedly connected to a hopper, the top of the support frame is fixedly connected to a hydraulic cylinder, the outer surface of the hydraulic cylinder is provided with a telescopic rod, the side of the telescopic rod away from the hydraulic cylinder is fixedly connected to a push head, the top inner wall of the collection bin is fixedly connected to a partition, the inner surface of the furnace is fixedly connected to a vertical shaft 2 on the side away from the collection bin, the outer surface of the vertical shaft 2 is fixedly sleeved with a cooling box, the inner surface of the cooling box is provided with a conveying device, which avoids a large amount of heat loss during feeding and discharging, greatly improves the heat utilization rate, and has a simple structure.

[0008] As a preferred embodiment, a motor is fixedly connected to the top of the support frame, and the motor is provided with a rotating shaft through an output shaft, a pulley 1 is fixedly installed on the outer surface of the rotating shaft, a transmission belt is movably sleeved on the outer surface of the pulley 1, a pulley 2 is movably embedded in the end of the transmission belt away from the pulley 1, a hollow shaft is fixedly installed on the inner surface of the pulley 2, a spiral plate is fixedly installed on the side of the hollow shaft close to the inside of the furnace, and an air inlet pipe and an air outlet pipe are provided at both ends of the hollow shaft through a rotating joint, thereby avoiding the problem that the temperature of the side of the hard carbon negative electrode material farther from the heat source is lower than the temperature of the side closer to the heat source, so that the product is heated evenly.

[0009] As a preferred embodiment, the telescopic rod is movably embedded in the inner surface of the material collection bin, the material collection bin is fixedly connected to the outer surface of the furnace, and the pusher head is movably embedded in the inner surface of the material collection bin. The telescopic rod can drive the pusher head to move under the push of the hydraulic cylinder.

[0010] As a preferred embodiment, the rotating shaft is movably embedded in the inner surface of the material collecting bin, and the hollow shaft is movably embedded in the inner surfaces of the material collecting bin, the partition and the furnace, and the rotating shaft can transmit the power of the motor to pulley one.

[0011] As a preferred embodiment, the air inlet pipe and the air outlet pipe are both fixedly connected to the outer surface of the heat exchange header, and the heat header can guide the exhaust gas discharged from the hollow shaft into the heat exchange header through the air outlet pipe to heat the air.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model can use hard carbon negative electrode material to seal the shaft one and the collecting bin to seal the feed port, and then use industrial special coolant to seal the shaft two to seal the discharge port, thereby avoiding a large amount of heat loss during feeding and discharging, greatly improving the utilization rate of heat, and has a simple structure and good sealing performance.

[0014] 2. The utility model adopts gas to burn inside the hollow shaft, and the central axis is located on the center line of the furnace, which can provide heat evenly around. In addition, the spiral plate stirs the hard carbon negative electrode material, avoiding the problem that the temperature of the side of the hard carbon negative electrode material farther from the heat source is lower than the temperature of the side closer to the heat source, so that the product is heated evenly and the sintering time and sintering cycle are shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main structure of a sintering device for hard carbon negative electrode materials provided by the utility model;

[0016] Figure 2A schematic diagram of the heat exchange header position structure of a sintering device for hard carbon negative electrode materials provided by the utility model;

[0017] Figure 3 A cross-sectional view of a sintering device for a hard carbon negative electrode material provided by the utility model;

[0018] Figure 4 A sintering device for hard carbon negative electrode material provided by the utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Legend:

[0020] 1. Support frame; 2. Furnace; 3. Collection bin; 4. Heat exchange collection box; 5. Vertical shaft 1; 6. Hopper; 7. Hydraulic cylinder; 8. Telescopic rod; 9. Pusher head; 10. Partition; 11. Vertical shaft 2; 12. Cooling box; 13. Conveying equipment; 14. Motor; 15. Rotating shaft; 16. Pulley 1; 17. Transmission belt; 18. Pulley 2; 19. Hollow shaft; 20. Spiral plate; 21. Exhaust pipe; 22. Inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a sintering device for hard carbon negative electrode materials, comprising: a support frame 1, the top of the support frame 1 is fixedly connected with a furnace 2, a collection bin 3 and a heat exchange collection box 4, the top of the collection bin 3 is fixedly connected with a vertical shaft 5, the top of the vertical shaft 5 is fixedly connected with a hopper 6, the top of the support frame 1 is fixedly connected with a hydraulic cylinder 7, the outer surface of the hydraulic cylinder 7 is provided with a telescopic rod 8, the side of the telescopic rod 8 away from the hydraulic cylinder 7 is fixedly connected with a push head 9, the top inner wall of the collection bin 3 is fixedly connected with a partition 10, the inner surface of the furnace 2 is fixedly connected with a vertical shaft 11 away from the collection bin 3, the outer surface of the vertical shaft 11 is fixedly sleeved with a cooling box 12, and the inner surface of the cooling box 12 is provided with a conveying device 13, which avoids a large amount of heat loss during feeding and discharging, greatly improves the heat utilization rate, and has a simple structure and good sealing performance.

[0023] like Figure 1-4As shown, a motor 14 is fixedly connected to the top of the support frame 1, and a rotating shaft 15 is provided on the motor 14 through an output shaft. A pulley 16 is fixedly installed on the outer surface of the rotating shaft 15, and a transmission belt 17 is movably sleeved on the outer surface of the pulley 16. A pulley 2 18 is movably embedded in the end of the transmission belt 17 away from the pulley 16, and a hollow shaft 19 is fixedly installed on the inner surface of the pulley 2 18. A spiral plate 20 is fixedly installed on the side of the hollow shaft 19 close to the inside of the furnace 2, and an air inlet pipe 22 and an air outlet pipe 21 are provided at both ends of the hollow shaft 19 through a rotating joint, which avoids the problem that the temperature of the side of the hard carbon negative electrode material farther from the heat source is lower than the temperature of the side closer to the heat source, so that the product is heated evenly and the sintering time and sintering cycle are shortened.

[0024] like Figure 1-4 As shown, the telescopic rod 8 is movably embedded in the inner surface of the aggregate bin 3, the aggregate bin 3 is fixedly connected to the outer surface of the furnace 2, and the pusher head 9 is movably embedded in the inner surface of the aggregate bin 3. The telescopic rod 8 can drive the pusher head 9 to move under the push of the hydraulic cylinder 7 to push the hard carbon negative electrode material into the furnace 2.

[0025] like Figure 1-4 As shown, the rotating shaft 15 is movably embedded in the inner surface of the aggregate bin 3, and the hollow shaft 19 is movably embedded in the inner surfaces of the aggregate bin 3, the partition 10 and the furnace 2. The rotating shaft 15 can transmit the power of the motor 14 to the pulley 16 to rotate the pulley 16.

[0026] like Figure 1-4 As shown, the air inlet pipe 22 and the air outlet pipe 21 are both fixedly connected to the outer surface of the heat exchange header 4. The heat exchange header 4 can introduce the exhaust gas discharged from the hollow shaft 19 into the heat exchange header 4 through the air outlet pipe 21 to heat the air and improve the utilization rate of thermal energy.

[0027] Working principle: This equipment is a sintering equipment for hard carbon negative electrode materials. When in use, the hard carbon negative electrode materials are introduced into the hopper 6, and then the hard carbon negative electrode materials will fall into the middle cavity between the collection bin 3 and the partition 10 by their own weight. When the hard carbon negative electrode materials fill the collection bin 3 and reach the vertical shaft 5, the hydraulic cylinder 7 is started, and the hydraulic cylinder 7 pushes the push head 9 through the telescopic rod 8, so that the push head 9 pushes the hard carbon negative electrode materials into the furnace 2, so that the hard carbon negative electrode materials in the vertical shaft 5 are reduced. At this time, continue to feed, maintain the state of the vertical shaft 5 being full of materials, so that the feed port is sealed, and then the gas is introduced into the hollow shaft 19 from the intake pipe 22 and ignited to make The gas burns in the hollow shaft 19 and releases heat. Because the hollow shaft 19 is at the neutral line of the furnace 2, the hollow shaft 19 can make the temperature inside the furnace 2 more evenly distributed. Then the motor 14 is started. The motor 14 drives the rotating shaft 15 to rotate through the output shaft. The rotating shaft 15 drives the transmission belt 17 to rotate through the pulley 16. The transmission belt 17 drives the hollow shaft 19 to rotate through the pulley 2 18. The hollow shaft 19 drives the spiral plate 20 to rotate. The spiral plate 20 can stir the hard carbon negative electrode material to make it absorb heat better and slowly bring it to the vertical shaft 2 11. Then the hard carbon negative electrode material is stirred by gravity at the vertical shaft 11. The hard carbon negative electrode material is quickly cooled by the conveying device 13 and then transported out of the cooling box 12. At the same time, the coolant level is more than a part of the shaft 11, so that the discharge port of the furnace 2 is also sealed. The support frame 1 can support the furnace 2. The heat exchange header 4 can introduce the exhaust gas discharged from the hollow shaft 19 into the heat exchange header 4 through the outlet pipe 21 to heat the air and improve the utilization rate of thermal energy. The rotary joint can connect the outlet pipe 21 and the inlet pipe 22 to the hollow shaft 19 without leakage. The hard carbon negative electrode material is used to cool the shaft 5 and the collection bin. 3 is used to seal the feed port, and then the industrial special coolant is used to seal the shaft 2 11 to seal the discharge port, thereby avoiding a large amount of heat loss during feeding and discharging, greatly improving the heat utilization rate, and the structure is simple and the sealing performance is good. At the same time, gas is burned inside the hollow shaft 19, and the central axis is located on the central line of the furnace 2, which can provide heat evenly around. In addition, the spiral plate 20 stirs the hard carbon negative electrode material, thereby avoiding the problem that the temperature of the side of the hard carbon negative electrode material far from the heat source is lower than the temperature of the side close to the heat source, so that the product is heated evenly, shortening the sintering time and sintering cycle.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sintering device for hard carbon negative electrode material, characterized in that: include: A support frame (1), the top of which is fixedly connected to a furnace (2), a material collection bin (3) and a heat exchange header (4), the top of which is fixedly connected to a vertical shaft (5), the top of which is fixedly connected to a hopper (6), the top of which is fixedly connected to a hydraulic cylinder (7), the outer surface of which is provided with a telescopic rod (8), the side of which away from the hydraulic cylinder (7) is fixedly connected to a pusher head (9), the top inner wall of which is fixedly connected to a partition (10), the inner surface of which is fixedly connected to a vertical shaft (11) away from the internal surface of the furnace (2) is fixedly connected to a second vertical shaft (11), the outer surface of which is fixedly provided with a cooling box (12), the inner surface of which is provided with a conveying device (13).

2. The sintering equipment of a hard carbon negative electrode material according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to a motor (14), the motor (14) is provided with a rotating shaft (15) through an output shaft, a pulley (16) is fixedly mounted on the outer surface of the rotating shaft (15), a transmission belt (17) is movably sleeved on the outer surface of the pulley (16), a pulley (18) is movably embedded in the end of the transmission belt (17) away from the pulley (16), a hollow shaft (19) is fixedly mounted on the inner surface of the pulley (18), a spiral plate (20) is fixedly mounted on the side of the hollow shaft (19) close to the inside of the furnace (2), and an air inlet pipe (22) and an air outlet pipe (21) are arranged at both ends of the hollow shaft (19) through a rotary joint.

3. The sintering equipment of a hard carbon negative electrode material according to claim 1, characterized in that: The telescopic rod (8) is movably embedded in the inner surface of the material collecting bin (3), the material collecting bin (3) is fixedly connected to the outer surface of the furnace (2), and the pushing head (9) is movably embedded in the inner surface of the material collecting bin (3).

4. The sintering equipment of a hard carbon negative electrode material according to claim 2, characterized in that: The rotating shaft (15) is movably embedded in the inner surface of the material collecting bin (3), and the hollow shaft (19) is movably embedded in the inner surfaces of the material collecting bin (3), the partition (10) and the furnace (2).

5. The sintering equipment of the hard carbon negative electrode material according to claim 4, characterized in that: The air inlet pipe (22) and the air outlet pipe (21) are both fixedly connected to the outer surface of the heat exchange header (4).

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