A kind of negative electrode material graphitization preparation process

Abstract

The invention discloses a negative electrode material graphitization preparation process, a negative electrode material graphitization preparation process, specifically comprising the following steps: S1, dust removal: performing dust removal treatment on raw materials; S2, high temperature treatment: electrifying the raw materials after dust removal for 15-20 hours , and heat up to 2600-2800°C. During the heating process, the waste gas produced is discharged after being treated by waste gas treatment equipment; S3, cooling: the raw material is cooled to 500°C and taken out from the graphitization furnace, wherein the waste gas described in step S2 The processing equipment includes a desulfurization device and an impurity removal device, and gas delivery is realized through a gas delivery mechanism between the desulfurization device and the impurity removal device. The present invention relates to the technical field of negative electrode material preparation. The negative electrode material graphitization preparation process, after long-term use, the desulfurization device is severely corroded, and the desulfurization box can be replaced without replacing the entire desulfurization device. It is easy to operate, the workload is small, and the overall operation and maintenance cost of the exhaust gas treatment equipment is reduced. Economical and practical.

Description

technical field [0001] The invention relates to the technical field of preparation of negative electrode materials, in particular to a graphitization preparation process of negative electrode materials. Background technique [0002] The negative electrode refers to the lower end of the potential (potential) in the power supply. In the primary battery, it refers to the electrode that acts as an oxidizer. It is written on the left in the battery reaction. From a physical point of view, it is the electrode that flows out of the electrons in the circuit. During the preparation process, it is necessary to use a graphitization furnace to graphitize the raw materials. When the graphitization furnace is working, a large amount of waste gas will be generated. The quality of the waste gas treatment device directly affects the degree of environmental pollution caused by the graphitization process. [0003] The patent with the notification number CN 204563858 U discloses a graphitizatio...

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Problems solved by technology

[0010] Aiming at the deficiencies of the prior art, the present invention provides a graphitization preparation process for negative electrode materials, which solves the need for regular maintenance during the use of desulfurization equipment, and the need to replace the entire equipment after serious damage, high operation and maintenance costs, and relatively economical and practical Poor, and the dust removal equipment is easy to block, it is not convenient to clean, and the filtered impurities are not convenient to collect, and the labor intensity of the workers is high.

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