▎ 摘　　要

NOVELTY - The utility model claims a soaking expansion device for preparing graphene, relating to the technical graphene of preparation. The device comprises a tank body, a temperature control mechanism, a cloth bag and a weighting mechanism, the cloth bag is supported by the supporting frame to make it in the cylindrical expansion state, the cloth bag is filled with graphite raw material the weighting mechanism is used for completely immersing the cloth bag in the expanding liquid in the tank body; the tank body is provided with a rolling shaft, the rolling shaft is driven by the driving mechanism to rotate, and the roller and the cylindrical side wall of the cloth bag are tightly contact to make the roller drive the cloth bag to rotate. This utility model adopts cloth bag to contain graphite and gas, liquid can penetrate the cloth bag, so as to ensure the graphite raw material is completely immersed in the expansion liquid, in addition, the utility model rolling operation of the bag so as to continuously stir the graphite material in the cloth bag, the graphite raw material and the expansion liquid of this utility model contact large area, improving the reaction rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the dipping expansion device for preparing graphene to any one of claims -.