Device for introducing gas into molten metal

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

1986-10-01

1988-02-16

Rutledge, L. Dewayne

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

266218, C21C 548

Patent

active

047250470

ABSTRACT:
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 therethrough, 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 passageway 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 container 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.

REFERENCES:
patent: 2811346 (1957-10-01), Spire
patent: 3330645 (1967-07-01), De Moustier et al.
patent: 3610602 (1971-10-01), Deacon
patent: 3834685 (1974-09-01), Ziemkiewicz et al.
patent: 4053147 (1977-10-01), Moser et al.

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