▎ 摘　　要

NOVELTY - The utility model claims a cavitation device for preparing powder graphene, comprising: fixing frame body, n groups of cavitation driving and n operating units, n is more than 1, n groups of cavitation driving and n operating units are set on the fixing frame body, each running machine set comprises a material liquid; a liquid collecting tank and one or more cavitator; all the cavitator is connected between the liquid container located at the top end and the liquid collecting box located at the bottom end; all the material liquid is connected with the raw material cabin; all the liquid collecting box is connected with the finished product cabin; A set of cavitation drives and one operating unit form a set of cavitation sets. The cavitation device for preparing powder graphene of the utility model realizes n times of cavitation once, improves the cavitation efficiency, effectively avoids the reciprocating circulation of cavitation, improves the production efficiency and reduces the energy consumption.