▎ 摘　　要

NOVELTY - The utility model claims a waste recycling device for preparing graphene, comprising a base; one end of the upper surface of the base is fixed with a supporting plate; one side of the supporting plate close to the centre of the upper surface of the base is orderly provided with a first fixing rod, a second fixing rod and a third fixing rod from up to down; the first fixing rod; one end of the second fixing rod and the third fixing rod far away from the supporting plate is fixedly connected with filter cylinder; and the first fixing rod; the end parts of the second fixing rod and the third fixing rod are located at the middle part of one side of the outer surface of the filter cylinder; the centre of the lower end of the filter cylinder is provided with a filter screen cylinder; the lower end of the filter screen cylinder and the corresponding part of the lower surface of the filter cylinder are penetrated with a discharge pipe, two sides of the lower end of the filter cylinder are provided with a discharging pipe; the outer side of the discharging pipe upper end sleeved with a flange; the outer side of the discharging pipe is equipped with a sealing cover The utility model in the using process, the whole device operation is simple and convenient; it can realize harmless treatment to the waste liquid, so it is good for popularization and use.