Rushton Turbine (Radial Disc Impeller)

The Rushton impeller, named after its inventor, is among the earliest documented designs for mixing impellers. It comprises flat, vertically oriented blades symmetrically arranged around a flat disc that lies horizontally. This traditional design produces a basic radial flow pattern, pushing material from the center of the container outward, where it moves along the tank's outer walls. The primary use of this impeller is typically seen in reactor tanks, situations involving the mixing of two phases (liquid and gas), and any scenario demanding vigorous mixing with considerable power relative to the volume. The gas is sparged and captured below the rotating disc and then directed into highly turbulent regions near the blades which results the dispersion..