Preparation device and preparation method of composite rare earth silicate powder

The invention belongs to the technical field of silicate powder preparation, and relates to a preparation device and a preparation method of composite rare earth silicate powder, the preparation device comprises a movable base, one side of the movable base is connected with two tool supporting plates through bolts, and dispersion assemblies are arranged in the two tool supporting plates; a dispersing assembly is fixedly arranged on the lower side of the tool supporting plate, a drying and crushing box is fixedly arranged on the lower side of the dispersing assembly, a discharging assembly is arranged at the discharging end of the drying and crushing box, a dust removal assembly is arranged on the outer side of the tool supporting plate, the dispersing assembly comprises a clamping base, and a mixing barrel is fixedly connected to one side of the clamping base. The precipitating agent is rapidly dispersed in the mixing cylinder, so that a large number of crystal nucleuses formed due to local over-concentration