▎ 摘　　要

NOVELTY - The utility model aims at providing an air flow crushing device for preparing graphene material, comprising an airflow smashing system and classifying system, wherein the airflow crushing system comprises a crushing chamber, a counter set on the bracket, the touch air nozzle. a voltage stabilizing tube, a high pressure air inlet valve, inlet orifice, the grading system comprises a first stage grading wheel placed on the top of the pulverizing room, the second stage grading wheel, three-level grading wheel, wherein the first stage grading wheel, secondary grading wheel, three-level grading wheel radius reducing gradually. The device has a continuous crushing and peeling characteristic of the finely graded through setting up three-level grading system stripping the cut graphene obtained timely and precise separation and collection, realizing continuously and commercially under the action of high shear stress, and cost for preparing high-quality graphene.