Vertical stirrer for particle modification

The utility model provides a vertical stirrer for particle modification, which relates to the field of modified plastic particles and comprises a stirrer body, and a motor is fixedly mounted on the outer surface, close to the top, of the stirrer body through an auxiliary plate. When the vertical stirrer for particle modification is used, an external power supply of a motor is turned on, a first gear is driven to rotate, a second gear is driven to rotate through a transmission belt, a rotating shaft rotates at the same time, stirring blades and stirring rods are driven to rotate, particles in the stirrer body are stirred, and meanwhile a first fixing plate and a second fixing plate are driven to rotate; at the moment, the two scraping blades fixed between the first fixing plate and the second fixing plate are driven by the bolts to rotate, the inner wall of the stirrer body is scraped off, particles adhered to the inner wall of the stirrer body are scraped off, and the particles are stirred and mixed together