Method and apparatus for inhibiting oxidation in pumps for...

Details Method and apparatus for inhibiting oxidation in pumps for... Method and apparatus for inhibiting oxidation in pumps for...

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/04 (2006.01) F04D 7/06 (2006.01) F04D 29/70 (2006.01) F27D 3/14 (2006.01) G21C 15/247 (2006.01)

Patent

CA 2168508

In a pump for pumping molten metal including a motor and a shaft connected at an upper end to the motor and at a lower end to an impeller which is rotatable in a molten metal bath, the improvement being an apparatus for impeding oxidation of the shaft, including a gas source for releasing gas and a gas feed tube in fluid communication with the gas source, the gas feed tube being positioned to direct gas along the outer surface of the shaft.

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