▎ 摘　　要

NOVELTY - The device has a tank main portion (1) that is provided with a containing space. The top portion of the tank main portion is provided with an exhaust pipe (15). A positive electrode graphite tube (8) is fixedly connected with the inner wall of the tank main portion through a first bracket (9). A negative electrode graphite rod (5) is set in the center of the positive electrode graphite tube. A collecting chamber (14) is set above the positive electrode graphite tube for collecting graphene. A magnetic ring (10) is sleeved outside the positive electrode graphite tube (8), where upper end is made to form an annular arc between the positive graphite tube and negative electrode graphite rod. The first air inlet pipe (3), the second air inlet pipe (6) and the third air inlet pipe (7) are respectively used for introducing methane, catalytic gas and inert gas between positive electrode graphite tube and the negative electrode graphite rod. USE - Device for preparing graphene by electric arc method. ADVANTAGE - The device improves the efficiency of preparing graphene by electric arc method, and realizes industrial continuous production. The graphite rod negative electrode positive electrode graphite tube connected with alternating current, at the same time matched with the use of the strong magnetic ring located at the upper end of the positive graphite pipe, and the annular rotating electric arc, it not only realizes the continuous production of the graphene and the preparation efficiency is higher. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the structure of the device for preparing graphene by electric arc method. 1Tank main portion 2First insulating plate 3First air inlet pipe 4Second insulating plate 5Negative electrode graphite rod 6Second air inlet pipe 7Third air inlet pipe 8Positive electrode graphite tube 9First bracket 10Magnetic ring 11Insulating pipe 12Cooling ring pipe 13Second bracket 14Collecting chamber 15Exhaust pipe 16Explosion discharging port 17Mesh enclosure 18Water inlet 19Water outlet 20Third bracket