A kind of graphene preparation system

Abstract

The invention belongs to the technical field of graphene production and particularly relates to a graphene preparation system. The graphene preparation system comprises a tank body, a charging pipe, agas inlet pipe, a finished product conveying pipe, a microwave emitter and a swinging module, wherein the charging pipe is arranged at the top of the tank body; the gas inlet pipe is arranged at thebottom of the tank body and can be used for injecting inert gas or compressed air into the tank body; the finished product conveying pipe is arranged at the top of the tank body at one side of the charging pipe; the microwave emitter is arranged on the internal wall of the tank body; the swinging module is arranged at the middle part of the tank body and is used for placing oxidated graphite particles. According to the graphene preparation system, through arranging the swinging module, the swinging module vibrates to avoid the influence on the production of graphene caused by feedstock accumulation; through arranging a vibrating module, the local accumulation of the graphite particles in a placement dish is avoided, and the blockage of a feeding hopper is avoided; through arranging a sloshing module, the graphite particles in the placement dish can slosh, and thus, the influence on the production of the graphene caused by the feedstock accumulation is avoided.

Description

technical field [0001] The invention belongs to the technical field of graphene production, in particular to a graphene preparation system. Background technique [0002] At present, methods for preparing graphene, a special material, include: slight friction method or tearing tape method (pasting HOPG), heating SiC method, metal substrate chemical vapor deposition method, redox method, etc. The first three methods are not suitable for large-scale production of graphene due to low yield, expensive equipment, and cumbersome process. The redox method is relatively more suitable for large-scale production because of its higher yield. [0003] However, the chemical reducing agent (such as hydrazine hydrate) used in the traditional redox method is very toxic, so that this reduction method poses a greater threat to human health and environmental protection. The thermal reduction method has the advantages of rapid and thorough reduction. advantages; but since heating generally need...

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Problems solved by technology

[0005] This technical scheme can ensure that the oxidized graphite particles are evenly spread on the placement dish, so that it can fully and uniformly receive microwave irradiation; however, the vibration of this scheme is not sufficient, and there are no effective measures to prevent clogging and local accumulation during feeding, making this The graphene production efficiency of the scheme is low

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