▎ 摘　　要

NOVELTY - The utility model relates to cement preparation field, claims graphene mixing and proportioning device for preparing composite cement, comprising an upper barrel body, two sides of the middle part of the upper barrel body are provided with a storage chamber, the top part of the storage chamber are fixedly connected with a hopper, the bottom of the two storage chambers are fixedly connected with a discharging pipe, the middle part of the two discharging pipes are provided with a first valve, two sides of the middle part of the guide plate are provided with a material guide hole, two of the discharging pipe is connected with two of the guide hole, the output end of the motor is fixedly connected with a first transmission wheel, the middle part of the second transmission wheel is fixedly connected with the bottom of the stirring rod. In the utility model, the two raw materials are respectively placed in the two storage chambers, the scale line can accurately grasp the input amount of the raw material, and can be compared with the raw material input amount, through opening the valve can make the raw material into the inner part of the lower barrel body, so as to realize the raw material of accurate mixing.