Simulate a similar artificial screening motion. By adjusting the eccentricity, radial and cut angles, the circular motion of the screen is combined with the parabolic motion of the upward and downward motion to establish a horizontal and throwing three-dimensional rolling motion. The materials are evenly dispersed from the center to the outer edge on the entire screen surface, so that the fine particles are propagated in the axial direction with a spiral motion, thus completing the entire screening process;
This process is repeated between each screen layer to complete the screening of materials