▎ 摘　　要

NOVELTY - The utility model claims a jar, specifically relates to a graphene jar, comprising jar body and an upper cover, the bottom of the inner side of the middle part of the jar body is provided with an upright post; the upright post screw thread connected with the inner side of the ball body at the middle part, the upright post is vertically equipped with several round supporting net, side wall of the jar body of the side wall and the upper cover is provided with a fastening buckle; the inner side of the upper cover is provided with a sealing ring, the top of the upper cover is provided with a pressure meter. the vacuum gas hole and a temperature tester. A graphene provided by this utility model for milling, the milling tank is provided with a upright post, a circular supporting net upright post, so that graphite powder milling also can obtain the effective ball milling, to ensure uniform milling of the graphite powder.