▎ 摘　　要

NOVELTY - The device has two moving devices (6) that are respectively fixed on a left side and a back of a stirring device (5). The moving device is used for driving the stirring device. A microwave heater (7) is fixed on an inner wall of a reaction chamber (4). The microwave heater is used for heating a reactant. A feeding pipe (8) is located in the reaction chamber. The feeding pipe is communicated with a material inlet (81) for adding the reactant. A discharging pipe (9) is located in the reaction chamber. The discharging pipe is connected with a discharging port (91) that discharges a reaction product. A cooling device (10) is located in a fixed frame (1), and used for cooling the reaction product in the discharge pipe. USE - Graphene preparing device. ADVANTAGE - The total contact area of the graphite particles with the concentrated sulfuric acid is increased. The reaction rate is increased. The temperature of the reaction solution is ensured and accurately adjusted. The production efficiency of the graphene is improved. The production rhythm is accelerated, and the reaction product is effectively cooled. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the graphene preparing device. Fixed frame (1) Reaction chamber (4) Stirring device (5) Moving device (6) Microwave heater (7) Feeding pipe (8) Discharging pipe (9) Cooling device (10) Material inlet (81) Discharging port (91)