▎ 摘　　要

NOVELTY - The device has a reaction device (1) that includes a feeding port and a discharging port. The blowing gas inlet is provided for introducing an inert gas. The main discharging port of feeding device (2) is connected with feeding port of reaction device. The material outlet of the reaction device and discharging device (3) is connected with material conveying device (4). The material conveying device is connected with reaction device, for blowing inert gas to reacting device through material conveying device, to obtain graphene powder blown into discharge device. USE - Graphene preparing device. ADVANTAGE - The change of reaction temperature is reduced, and the continuous preparation and repair of graphene can be realized effectively. The production efficiency of the device can be improved and the energy consumption can be reduced. The conditions for industrial production can be created. DETAILED DESCRIPTION - The feeding device includes a main feeding element (21) having main feeding port, a blowing gas inlet and a main discharging port. The main feeding port of the feeding device is filled with reacted powder. An INDEPENDENT CLAIM is included for a graphene preparing method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the graphene preparing device. (Drawing includes non-English language text) Reaction device (1) Feeding device (2) Discharging device (3) Material conveying device (4) Main feeding element (21)