Alcoa Inc.

Andreas Kaleja

Michael J Kinosz

Marshall A Klingensmith

A dosing furnace ( ) with metal treatment and level control includes a holding chamber ( ) for containing a supply of molten metal ( ), a pump ( ) connected to the holding chamber ( ), a molten metal treatment chamber ( ) located at an outlet ( ) of the pump ( ), and a dosing chamber ( ) located downstream and in fluid communication with the molten metal treatment chamber ( ). A molten metal level sensor ( ) is located in the dosing chamber ( ). The pump ( ) is a variable speed pump having a pump inlet ( ) connected to the holding chamber ( ) and configured to pump the molten metal ( ) through the dosing furnace ( ) during operation. The molten metal level sensor ( ) is connected to the pump ( ) for providing a pump speed control signal to the pump ( ). The molten metal level sensor ( ) is configured to monitor the level of the molten metal ( ) in the dosing chamber ( ) and maintain a preset level of the molten metal ( ) in the dosing chamber ( ) by controlling the speed of the pump ( ) with the pump speed control signal.

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Munich, Georgia

Andreas Kaleja