Auxiliary material stacking structure of graphitization furnace

Abstract

The utility model discloses a graphitization furnace auxiliary material stacking structure and belongs to the field of lithium ion battery material manufacturing. The structure is arranged in a graphitization furnace and comprises a carbon black layer, a calcined coke layer, a graphitization coke layer and a plurality of high-density plates which are spliced end to end, and the high-density plates are installed in the graphitization furnace in a sliding mode; the carbon black layer is laid on a bottom plate of the graphitization furnace box body, the carbon black layer located on the lower portions of the high-density boards is laid in the strip-shaped through holes, the calcined coke layer is vertically laid at the splicing position of the two high-density boards, the graphitization coke layer is vertically laid at the other positions, and the width of the graphitization coke layer is larger than that of the calcined coke layer. When each discharging device is used for filling, waste caused by insufficient graphitization due to auxiliary material bias flow can be prevented.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery material manufacturing, specifically relating to a graphitization furnace auxiliary material stacking structure. Background Technology

[0002] In the production of graphitized anode materials, graphitization is a crucial step. Graphitization requires introducing auxiliary materials into the graphitization furnace before adding the raw material powder. Both the auxiliary materials and the raw material powder must be stacked vertically, following the direction of current flow in the furnace. If the furnace is directly loaded with graphitized coke, the auxiliary materials at the bottom will deviate during power supply. This deviation reduces the current flow during graphitization, preventing complete graphitization of the raw material powder and resulting in significant waste. Utility Model Content

[0003] This utility model provides a graphitization furnace auxiliary material stacking structure, the purpose of which is to isolate the auxiliary materials during the feeding process to prevent them from flowing off course and causing waste.

[0004] A graphitization furnace auxiliary material stacking structure is set inside the graphitization furnace. Its features include a carbon black layer, a calcined coke layer, a graphitized coke layer, and several high-density boards spliced ​​end-to-end. A transversely extending ridge is set at the bottom of the graphitization furnace, penetrating the furnace body. The height of the high-density boards is the same as the height of the graphitization furnace. A transversely extending groove is provided at the bottom of each high-density board, matching and sliding with the ridge. A protrusion is provided on one side of each high-density board, and a groove is provided on the other side. The groove and protrusion cooperate to tightly connect the two high-density boards. A strip-shaped through-hole is opened at the bottom of each high-density board, the height of which is not higher than the height of the carbon black layer. Lifting lugs are symmetrically arranged at the top of both sides of the high-density boards, and lifting lugs are hinged within these grooves. The carbon black layer is laid on the bottom plate of the graphitization furnace body. The carbon black layer located below the high-density boards is laid within the strip-shaped through-hole. A calcined coke layer is vertically laid at the joint of two high-density boards, and a graphitized coke layer is vertically laid at other locations, with the width of the graphitized coke layer being greater than the width of the calcined coke layer.

[0005] The beneficial effects of this invention are as follows: High-density fiberboard (HDF) is placed into the graphitization furnace by suspending it with a crane. The combination of the raised strips and the sliding groove not only allows the HDF to move parallel within the furnace but also prevents it from tilting to either side. The two HDF boards are joined end-to-end, forming a tighter connection through the grooves and raised blocks, preventing powder leakage from the joints during filling. Using this device for filling prevents auxiliary materials from flowing out of the furnace, thus avoiding incomplete graphitization and waste. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a high-density fiberboard structure.

[0007] Figure 2This is a top view of the auxiliary material stacking structure of a graphitization furnace.

[0008] Figure 3 This is a side sectional view of the auxiliary material stacking structure of a graphitization furnace.

[0009] Wherein: 1-high density board, 2-convex strip, 3-sliding groove, 4-protrusion, 5-groove, 6-lifting lug groove, 7-lifting lug, 8-strip-shaped through hole, 9-carbon black layer, 10-calcined coke layer, 11-graphitized coke layer. Detailed Implementation

[0010] Example 1: A graphitization furnace auxiliary material stacking structure is set inside the graphitization furnace. This structure includes several high-density boards 1 spliced ​​end to end, a carbon black layer, a calcined coke layer, and a graphitized coke layer. A transverse protrusion 2 is set at the bottom of the graphitization furnace, penetrating the furnace body. The height of the high-density board 1 is the same as the height of the graphitization furnace. A transverse sliding groove 3 is provided at its bottom. The sliding groove 3 matches and slides with the protrusion 2. A protrusion 4 is provided on one side of the high-density board 1, and a groove 5 is provided on the other side. The groove 5 and the protrusion 4 cooperate to splice the two high-density boards 1 tightly. A strip-shaped through hole 8 is opened at the bottom of the high-density board 1. The height of the strip-shaped through hole 8 is not higher than the height of the carbon black layer 9. Lifting lug grooves 6 are symmetrically set on the top of both sides of the high-density board 1, and lifting lugs 7 are hinged in the lifting lug grooves 6. The carbon black layer 9 is laid on the bottom plate of the graphitization furnace box. The carbon black layer 9 located under the high-density board 1 is laid in the strip-shaped through hole 8. The calcined coke layer 10 is laid vertically at the splicing of two high-density boards 1, and the graphitized coke layer 11 is laid vertically at other positions. The width of the graphitized coke layer 11 is greater than the width of the calcined coke layer 10.

[0011] The carbon black layer 9 laid at the bottom of the graphitization furnace can block current and keep the furnace warm. By placing the calcined coke layer 10 and the graphitized coke layer 11 with different resistivities, the current is prevented from passing directly through the auxiliary material layer without passing through the graphitization furnace, so that the graphitization process has more efficiency, stability and safety.

Claims

1. A structure for stacking auxiliary materials of a graphitization furnace, provided in a graphitization furnace, characterized in that The application relates to a high-density plate for a graphitization furnace, which comprises a carbon black layer, a calcined coke layer, a graphitized coke layer and a plurality of high-density plates spliced together at the head and tail, a convex strip is transversely arranged at the bottom of the graphitization furnace and penetrates through the furnace body, the height of the high-density plate is consistent with the height of the graphitization furnace, a transversely penetrating sliding groove is arranged at the bottom of the high-density plate, the sliding groove is matched with the convex strip and slides, a convex block is arranged at one side of the high-density plate, a recess is arranged at the other side of the high-density plate, the recess and the convex block are matched and spliced to tightly connect the two high-density plates, a strip-shaped through hole is arranged at the lower part of the high-density plate, the height of the strip-shaped through hole is not higher than the height of the carbon black layer, lug ear grooves are symmetrically arranged at the top of the two sides of the high-density plate, and lug ears are hinged in the lug ear grooves; the carbon black layer is laid on the bottom plate of the graphitization furnace box body, the carbon black layer at the lower part of the high-density plate is laid in the strip-shaped through hole, the calcined coke layer is vertically laid at the splicing position of the two high-density plates, the graphitized coke layer is vertically laid at the remaining positions, and the width of the graphitized coke layer is greater than the width of the calcined coke layer.

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