Preparation device of high-uniformity carbon fiber slurry and use method of preparation device

The invention relates to the technical field of papermaking and discloses a high-uniformity carbon fiber slurry preparation device which comprises a stirring barrel, a first stirring shaft and a first driving part, the stirring barrel is provided with a feeding port and a discharging port, and a plurality of hemispherical protrusions and a plurality of strip-shaped protrusions are arranged on the inner side wall of the stirring barrel; the plurality of semispherical bulges and the plurality of strip-shaped bulges are arranged at intervals in the axial direction of the stirring barrel, and the strip-shaped bulges spirally extend in the axial direction of the stirring barrel; the first stirring shaft is rotatably arranged on the stirring barrel, and one end of the first stirring shaft is provided with a first stirring blade and extends into the stirring barrel; the first driving part is arranged on the stirring barrel and is in transmission connection with the first stirring shaft so as to drive the first stirr