The horizontal twin-shaft ribbon mixer is used to mix dry and powdery materials for the purpose of mixing evenly. During mixing, the material in the material is moved by two rotors moving in opposite directions, and performs a compound motion. The double-shaft paddle drives the material to rotate in two clockwise and counterclockwise directions along the inner wall of the machine groove. Pushing from the inside to both sides, the outer screw drives the material close to the cylinder wall to rotate the axis, and the axial direction is pushed from both sides to the inside, resulting in convection circulation and shear mixing in the material cylinder, completing the rapid and uniform material in a short period of time. mix.