▎ 摘　　要

NOVELTY - The utility model relates to the technical field of graphene production device, especially refers to a kind of aminated graphene produced by the freeze-dry device, which can reduce the friction between the box and save physical strength when picking and placing the placing box, improves the usability. while enhancing drying efficiency and increases the use reliability, comprising a working box, a host, a controller, a placing box, a first door and a second door, top end of the placing box is provided with a placing groove; further comprising a telescopic motor, a supporting plate and a rotating motor, the telescopic motor of top output end is provided with a moving rod; supporting plate is set on the top end of moving rod, a rotary motor is set on top of the working box, bottom of rotary electric machine output end is provided with a transmission shaft and provided with multiple groups of stirring rod on the side wall outside the transmission shaft; further comprising two sets of the left fixing part, two groups of right fixing piece and multiple groups of rolling piece, multiple groups of rolling components are set on the support top, and box for placing bottom top end contacting with the multiple groups of rolling component.