▎ 摘　　要

NOVELTY - The device has a gas compressor (1) that is connected with an air source device (2) for delivering the helium, nitrogen or carbon dioxide gas to convey a material into a disc-type airflow mill. A vibration hopper (4) is adapted to feed the material from a material storehouse into a disc airflow grinding device (6) for grinding. A freezing drier (3) is connected with an air source device, for separating moisture in compressed gas. A centrifugal ventilator (9) is connected with a drum type collector (8), for introduction and elimination of gas in a cyclone separator (7). USE - Device for preparing graphene using disc-type airflow mill. ADVANTAGE - The device has simple and easy preparation process, and the process is environment friendly for industrial mass production. The crystal grain size is uniform, a lattice integrity is high, and the content of impurities is lowered. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene by a disc-type airflow mill. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the device for preparing graphene using disc-type air jet mill. Gas compressor (1) Air source device (2) Freezing drier (3) Vibration hopper (4) Disc airflow grinding device (6) Cyclone separator (7) Collector (8) Centrifugal ventilator (9)