Atmospheric control of flux pre-melting furnace

Details Atmospheric control of flux pre-melting furnace Atmospheric control of flux pre-melting furnace

F - Mech Eng,Light,Heat,Weapons

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F27D 7/06 (2006.01) C22B 9/18 (2006.01) F27B 3/06 (2006.01) F27B 3/08 (2006.01) F27B 3/14 (2006.01) F27B 3/18 (2006.01) F27B 11/00 (2006.01) F27D 1/18 (2006.01) F27D 99/00 (2010.01) F27D 3/00 (2006.01)

Patent

CA 1109513

Abstract of the Disclosure A graphite lined crucible includes an upper horizontally extend- ing flange having a seal ring around its periphery. The crucible may be raised by a hydraulic cylinder so as to bring the seal ring into engagement with the inside of a refractory lined roof. Electrodes supported by the roof extend downwardly into the crucible for melting the flux within the crucible. The roof and the crucible are air-tight thereby preventing air from entering the crucible. An exhaust port located in the upper portion of the roof is connected to a vacuum device for exhausting fumes from the crucible and for controlling the atmosphere within the crucible.

297945

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