Preparation process of additive premix for reducing diarrhea rate of weaned piglets and premix device in preparation process

The invention discloses a preparation process of an additive premix for reducing the diarrhea rate of weaned piglets and a premix device in the preparation process, and belongs to the technical field of premixes. The premix device comprises a device body, a rotating disc arranged at the middle position in the device body and rotationally connected through a bearing, a power output mechanism used for driving the interior of the device body to rotate, and mixing cylinders rotationally connected with the top surfaces of the four end parts of the rotating disc through bearings, wherein stirring mechanisms arerotatably connected in the mixing cylinders, four storage cylinders corresponding to the mixing cylinders are uniformly fixed to the top of the device body, a feeding pipe is connected to the bottom of each storage cylinder, and a large gear ring for driving the mixing cylinders to rotate is fixed to the inner side wall of the device body. Under the action of a driving motor, rotating rods and the mixing cyli