Patent ID: 9127332
Filing Date: 2015-09-08
Classification: C22B

Abstract:
1. A gas dispersion apparatus for the injection of gas and flux into molten metal, comprising: an elongated stator with an internal cavity; a rotor including a rotor shaft, wherein the rotor shaft is rotatably mounted within the internal cavity of the stator; a passageway between an internal wall of the internal cavity in the stator and an outer wall of the rotor shaft to facilitate gas discharge at or near a top of the rotor; a central passageway from a top portion of the rotor shaft extending through to a bottom of the rotor, the central passageway providing a passageway for gas and flux to be discharged at the bottom of the rotor simultaneously with and independently from the gas discharge at or near a top of the rotor; and a source of flux including solids external to the central passageway operably connected to the central passageway and configured to inject flux from the source of flux through the central passageway and discharged at the bottom of the rotor; further wherein the rotor further comprises: a rotor periphery with an upper periphery which includes alternate blades and slots around the upper periphery, and with a lower periphery which includes a ring extending radially beyond the blades of the upper periphery; and wherein the ring contains apertures therein which coincide with the slots and which provide for the passage of molten aluminum there-through upon use of said rotor for aluminum refining operations.