▎ 摘　　要

NOVELTY - The preparation device has a reaction kettle (1) that is provided with a graphite crucible (2), and filled with protective gas (6). The outer side wall of the graphite crucible is sleeved with a heating coil (5). The graphite crucible is provided with a copper liquid (7). The reaction kettle is fixedly connected with a gas input pipe (3) and a gas output pipe (4). One end of the gas input pipe is orderly passed through the reaction kettle and the graphite crucible and is fixedly connected with a graphite pipe (8). The graphite pipe is located in the graphite crucible. One end of the gas output pipe is passed through the reaction kettle and connected with the top of the graphite crucible. The top portion of the graphite crucible is provided with an output port corresponding to the gas output pipe. USE - Preparation device for producing graphene powder. ADVANTAGE - The processing device for producing graphene powder has simple structure, convenient maintenance, the number of the processing device is less, and the cost of purchasing related processing device is reduced. The land cost needed by the device is reduced. The raw material for producing graphene powder is easy to find, and the cost is low, which reduces the cost for producing graphene powder. The processing method for producing graphene powder is simple. The processing efficiency is high, and mass production is achieved. The preparation method of the graphene powder has low requirement on the production technology. The graphene powder produced by the preparation method has small influence on the environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of graphene powder production. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the preparation device for producing graphene powder. Reaction kettle (1) Graphite crucible (2) Gas input pipe (3) Gas output pipe (4) Protective gas (6) Copper liquid (7) Graphite pipe (8)