▎ 摘　　要

NOVELTY - The utility model relates to graphene material, especially claims graphene material, comprising a tank body, the top part of the tank body is equipped with a motor, the inner part of the tank body is sealed and rotated with a shaft cylinder, the motor is connected with the shaft cylinder through the gear transmission, the outer wall of the shaft cylinder is fixedly connected with a stirring plate with adjustable space, the inner part of the shaft cylinder is matched with a plug column, a spring is set between the plug column and the top part of the shaft cylinder, the utility model uses the stirring plate itself bearing air pressure to adjust the air pressure in the tank body, the air pressure of the stirring plate changes into the shaft cylinder to act on the surface of the plug column, the elastic force of the spring overcomes the neutralization air pressure, realizing the gas pressure sensitive adjustment in the tank body, and the mechanical pressure conduction failure rate is low. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation kettle of nanometer material graphene to claim.