Device for introducing gas into molten metal

Details Device for introducing gas into molten metal Device for introducing gas into molten metal

C - Chemistry, Metallurgy

21

C

39/105

C21C 7/072 (2006.01) C21C 5/48 (2006.01)

Patent

CA 1250142

ABSTRACT OF THE DISCLOSURE A device for introducing gas into a mass of molten metal in a container, by way of an opening in the container and a pocket block having a passageway extending vertically there- through, the pocket block forming a portion of a refractory lining in said container, a refractory plug and an open ended shell thereabout in spaced relation positioned in said passage- way in said pocket block to form a gas passageway with said shell and refractory plug extending outwardly of and above said pocket block in protecting relation to said refractory plug with respect to molten metal introduced into said con- tainer and so as to form a hot metal dam protecting said gas passageway around said refractory plug. A ceramic plate larger than the refractory plug and pocket block is attached to the plug and pocket block to stop molten metal leaks.

518554

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