▎ 摘　　要

NOVELTY - The utility model claims an automatic powder feeding device for graphene production, comprising a tank body for stirring raw material, a motor; a conveying screw rod and a cylinder; the lower end of the tank body is provided with a discharging pipe; the lower end of the discharging pipe is provided with an inclined feeding and discharging pipe; the bottom surface of the feeding and discharging pipe is provided with a pipeline with an opening at the lower end for the discharging pipe; the opening at the lower end of the pipeline is obliquely provided with a sealing plate; the centre of the sealing plate is provided with a shaft hole; the conveying screw rod is set in the discharging pipe; the upper end of the conveying screw rod is provided with a sealing plug; the discharging hole at the bottom of the tank body is sealed by the sealing plug; the lower end of the conveying screw rod extends to the feeding and discharging pipe. The utility model has simple structure, feeding and discharging can be finished at the bottom of the tank body, which greatly reduces the travel of the conveying raw material, reduces the waste time in the conveying process, and because the raw material is injected into the tank body from the bottom, avoids the flying of the raw material, avoids the raw material is adhered to the top part of the tank body, avoids the waste of the material.