Froth pump having a froth impeller with flow inducing blades that project beyond the free edge of the pumping blades

摘要

An impeller (10) suitable for use in a centrifugal pump (50), the pump (50) including a pump chamber (54) and a pump inlet (56). The impeller (10) includes a main body portion (12) which includes a plurality of primary pumping blades (16) or vanes and one or more flow inducing blades (20) or vanes which project from the main body portion (12) of the impeller (10) and when installed into the pump inlet (56).