▎ 摘　　要

NOVELTY - The dust environment-friendly drying technique involves crushing a two-dimensional crystal with ink material by a crusher. The particles are collected after crushing. The sulfuric acid, nitric acid chemical reagent and potassium permanganate, and hydrogen peroxide are used to oxidize the graphite layer and the smooth layer. The cleaned solution is put into a tubular centrifuge to separate the residual graphite oxide powder. The oxidized graphite powder is finally collected after separating, and dried by drying. The drying device is provided with a placing table (1). The corner of the right top unit of the placing table is fixedly connected with a control panel (2). The middle of the top of the placement table is rotatably provided with heating rotating device (3). The top is symmetrically provided with multiple storage devices (4). The right top is fixed with a conveying device (5). USE - Dust environment-friendly drying method for extracting graphene. ADVANTAGE - The dust environment-friendly drying technique solves the problem that the accumulated drying can not dry, and comparing delay time because of the characteristic of the powder itself, after drying, slightly encountering flow, the phenomenon of flying in the device, resulting in the problem of troublesome when collecting. By automatic opening and closing, it can prevent the spray head from leaving, graphene powder of the inner cavity of the nozzle is dispersed, and avoids the inconvenience caused by manual butt joint and the circuit problem of the electromagnetic valve. Through the heating plate set on the inner wall of the placing hole, the generated heat energy can not be emitted, and can not cause the influence of heat energy around, and the rotating cylinder rotates to generate airflow. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of structure of dust environment-friendly drying method for extracting graphene. Placing table (1) Control panel (2) Heating rotating device (3) Storage devices (4) Conveying device (5)