▎ 摘 要
NOVELTY - The utility model claims a graphene spraying device, comprising a graphene loop and an air loop, the graphene loop comprises a graphene storage device, a pump body, a filter, a proportional valve, a peristaltic pump and a spray gun connected in turn by a conduit; the graphene loop further comprises a reflux pipe, one end of the reflux pipe is connected on the pipe between the proportional valve and the peristaltic pump, the other end of the reflux pipe extends into the graphene storage device; the air loop is used for providing compressed air to the spray gun and opening the liquid inlet of the spray gun, the air loop is further used for opening the liquid outlet and the liquid inlet of the proportional valve. utility model spraying pressure is stable, spraying quality is good, and graphene raw material utilization rate is high of the graphene spraying device.