Method for continuously producing graphene quantum dot slurry on large scale

The invention discloses a method for continuously producing graphene quantum dot slurry on a large scale, which comprises the following steps: (1) mixing a solvent and a dispersing agent to obtain a dispersion liquid; (2) mixing expanded graphite with the dispersion liquid to obtain expanded graphite dispersion liquid; (3) subjecting the expanded graphite dispersion liquid to ball-milling shearing collision stripping and then shearing crushing and stripping crushing, so as to obtain graphene slurry, wherein ball-milling shearing collision stripping, shearing crushing and stripping crushing are sequentially and circularly treated 2-6 times; (4) drying the graphene slurry to obtain dried graphene powder, then mixing the dried graphene powder, perchloric acid and potassium dichromate, and conducting heating to obtain graphene quantum dot precursor powder; and (5) adding the graphene quantum dot precursor powder into the new dispersion liquid for wetting, and then repeatedly conducting treating for 2-5 times by u