▎ 摘　　要

(CN213966465-U) NOVELTY - When the carbon powder is electrified to prepare graphene, in order to improve the vacuumizing efficiency and convenient for device automation, the utility model claims a vacuum reactor for preparing graphene by electrifying carbon powder, comprising a vacuum cavity with upper cover and lower cover, a vacuum cavity inner reaction pipe and two electrodes inserted into the reaction pipe from the upper and lower cover. The reactor greatly reduces the volume of the vacuum cavity, improves the vacuumizing efficiency; at the same time, it realizes the feeding and discharging from the outside of the vacuum cavity; it is convenient to realize automation of the device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a vacuum reactor for preparing graphite. 1Upper cover 2Lower cover 3Cavity wall 4Vacuumizing small hole 6Small hole 7Carbon powder 8Copper electrodes 9Lower electrode 10Sealing rings