▎ 摘　　要

NOVELTY - The utility model claims a graphene production device technology field, and claims a filtering device for graphene production, comprising an infusion tube, the inner part of the infusion tube is fixedly installed with two support plates symmetrically distributed, the two support plates are fixedly installed with a sleeve, the inner part of the sleeve is movably installed with a sliding shaft; the bottom of the sliding shaft is fixedly installed with a sealing plug, the top of the sealing plug is fixedly installed with a spring fixedly connected with the sleeve; the bottom of the infusion tube is fixedly installed with a connecting seat; the bottom of the connecting seat is fixedly installed with a water storage tank; the inner screw thread of the water storage tank is connected with a first screw thread ring The filtering device for graphene production has the advantages of automatic sealing; it solves the problem that the graphene filtering method has many kinds; when using the filtering device, the replacement of the filter core needs to manually close the filtering work to be carried out; the problem that the filter core cannot be automatically closed is not automatically closed.