Descriptions:

    The central screw and the outer ribbon are connected to the cycloidal needle wheel reducer, and rotate at an identical revolution. In operation, the central. In operation, the central screw lifts the material from bottom to top. mean while, the ribbon with a higher linear velocity sprials to lift  the material from bottom to top along the cone wall. The two kinds of motions make the material  be thrown into the space tangentially. and the material effects strong convection shearing and  diffusion, thus a quick mixing effect is achieved. ( the screw can also be made to a reverse one).