Graphite purifying device

Abstract

The invention provides a graphite purifying device. The device comprises a feeding system, a purifying furnace and a discharging system which are sequentially arranged in vertical direction, wherein the purifying furnace comprises a muffle for purifying and heating graphite and a resistance heating device surrounding the muffle in circumferential direction. The graphite purifying device works in vertical direction, the feeding system feeds a graphite material at the top of the purifying furnace, the graphite is purified in the purifying furnace and is discharged by the discharging system at the bottom of the purifying furnace, the graphite material is purified in the muffle, and the resistance heating device is used for guaranteeing the processing temperature in the muffle so as to realize heating at high temperature to guarantee the quality of graphite purifying. Due to structural design of the graphite purifying device with the vertical structure, the graphite can be purified continuously at high temperature, so that the production efficiency is improved, and the graphite purifying effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of graphite purification, more specifically, to a graphite purification equipment. Background technique [0002] Graphite materials have broad market prospects in new technology fields such as energy, environmental protection, information, transportation, and national defense. Such as electrode materials for batteries, bipolar plates for fuel cells, flexible graphite sealing materials, coating materials for electronic information equipment, stealth materials for military equipment, etc. [0003] Deep-processing products of graphite materials often have high added value, but deep-processing equipment is the most demanding link. Graphite purification equipment is one of the important equipment in deep processing. [0004] At present, the main domestic graphite purification equipment includes Acheson graphitization furnace and vacuum intermediate frequency induction furnace. The Acheson furnace is simple in ...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the induction heating method, compared with the resistance heating method, the effective size of the heating area is limited, the pollution to the power grid is serious, and the temperature uniformity is poor, and the product quality is unstable.

[0006] Therefore, only the Acheson furnace and the intermediate frequency induction furnace cannot meet the needs of large-scale production of graphite, especially the preparation of high-end lithium-ion battery anode materials, high-purity graphite, etc., which have higher requirements for graphitization. Existing equipment Unable to meet its requirements for graphite materials

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