Preparation device of superfine expanded graphite powder

The utility model provides a preparation device of superfine expanded graphite powder, which belongs to the technical field of graphite powder production, and comprises a shell main body and a crushing component arranged on the inner wall of the shell main body, the crushing component comprises a pressurizing shell, an impacting shell, a grinding shell, an extrusion tube, an impacting wheel, a driving fan blade, a main shaft wheel and a grinding wheel, the pressurizing shell, the impacting shell and the grinding shell are embedded in the inner wall of the shell body from top to bottom. Through the smashing assembly, raw materials of graphite powder can be smashed step by step, in the actual smashing process, the raw materials are smashed through impact generated by an impact wheel, then refining and grinding are conducted again through a main shaft wheel and a grinding wheel, thorough smashing of the raw materials is guaranteed to the maximum extent, and the grinding efficiency is improved. And a large amount