DUAL DIRECTION MIXING IMPELLER AND METHOD

摘要

A two bladed dual direction impeller includes blades that each has an inner blade portion (20) that forces material in a first direction and a second blade portion (24) that forces material in a second direction opposite to th e first direction. The first and second blade portions are radially spaced fro m each other by a connector element (22). Either one or both of the blade portions may be twisted.