▎ 摘　　要

NOVELTY - Device comprises an inlet through which the aqueous solution is introduced, a blower connected to the inlet and blowing the aqueous solution at a constant pressure, a vaporization unit connected to the blowing unit and vaporizing the aqueous solution transferred from the blowing unit in the form of fine particles, an addition part connected to the vaporization part and adding a certain amount of graphene oxide to the aqueous solution in the form of fine particles which is sprayed in a predetermined amount by the blowing pressure transmitted from the blower, a mixing unit connected to the addition unit and mixing and liquefying the aqueous solution in the form of fine particles transferred from the addition unit and the graphene oxide to produce a mixed solution, and a cooling unit connected to the mixing unit and cooling the mixed solution transferred from the mixing unit. USE - The device is useful for preparing a mixed solution by mixing graphene oxide for printing inks, paints, and other coatings. ADVANTAGE - The device improves dispersibility and purity. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of an additive part of a system for preparing a mixed solution. Additive (400) Vortex generation unit (430) Vibration generating unit (440)