▎ 摘　　要

NOVELTY - The utility model relates to the technical field of graphene production auxiliary device, especially refers to a kind of chemical reduction filter for preparing graphene, which can improve the feeding effect, and accelerate the material on the filter plate of the filter speed, and improving the filtering effect, enhancement of usability, and convenient for taking out the graphene particle filtering, and improves the use reliability, comprising working box, a filter plate, a bracket, a pedestal and a box door, the box bottom end is provided with an output pipe and the output pipe is provided with a control valve; further comprising four groups of electric telescopic rod and the supporting plate, top end of the work box is provided with an input port, further comprising a piston, an upper telescopic motor and a sealing ring; the bottom of the upper output end of the telescopic motor is provided with an upper movable rod, a sealing ring sleeved on the piston wall, and further comprises a lower telescopic motor and the push plate, the telescopic motor is set on the working box rear and lower front part of telescopic motor output end is provided with a lower movable rod; the movable rod front end through working box and connected with the push back end.