▎ 摘　　要

NOVELTY - The device has reaction chamber that is provided with an inner cavity. The upper end of the reaction chamber is provided with an air inlet opening from furnace portion. The lower end of the reaction chamber is provided with an outlet. A spray gun is located in the inner cavity of the furnace portion. The upper end of the spray gun is connected with the reaction chamber. The lower end of the spray gun is connected with the furnace portion. Several spray guns are arranged in pairs. USE - Device for preparing graphene. ADVANTAGE - The structure of the device for preparing graphene can be simplified, and the cost of the device can be reduced. The graphene powder can be prepared continuously and quickly, and the production efficiency of the graphite can be improved.