Molten metal pump

Details Molten metal pump Molten metal pump

F - Mech Eng,Light,Heat,Weapons

04

C

103/158

F04C 19/00 (2006.01)

Patent

CA 2011636

MOLTEN METAL PUMP Abstract A molten metal pump (10) includes an impeller (40) disposed at the end of an elongate drive shaft (30). The drive shaft (30) is disposed within an elongate, hollow post (28). The impeller (40) and the end of the post (28) are adapted to be immersed in molten metal. An inert gas is conveyed through the gap between the outer surface of the drive shaft (30) and the inner surface of the post (28), which gas is discharged into the molten metal in the vicinity of the impeller (40). Because the drive shaft (30) is insulated from the molten metal, it can be made of a durable material such as steel; because the post (28) is stationary relative to the molten metal, the metal is stirred only by the impeller (40), and not by the drive shaft (30). The invention includes other features such as a quick disconnect capability and a radial adjustment capability.

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