Blow lance for treating molten metal in metallurgical vessels
AssigneeVasipari Kutato es Fejleszto Vallalat
InventorsGabor Nagy, Zoltan Szonyi, Lajos Mityok, Istvan Pragay, Jozsef Zambo
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Abstract
A blow lance for treating molten metal comprising a concentric metal pipe structure enclosed within a ceramic covering with a space defined between the pipe structure and the covering. A layer of heat-resistant elastic fibrous material, excluding a binder, is positioned in the space. Ducting means forming coolant ducts are located between the concentric pipes.
Claims11
A blow lance for treating molten metal in metallurgical vessels comprising a concentric metal pipe structure enclosed within a refractory ceramic covering, said pipe structure and said ceramic covering defining a space therebetween, said metal pipe structure being formed of inner and outer metal pipes, and ducting means for forming coolant ducts between said inner and outer pipes and a heat-resistant elastic layer consisting of an elastic fibrous material and excluding any binder material, said elastic layer being positioned in said space which is between an outer surface of said outer pipe and an inner surface of said refractory covering.
Dependencies are inferred from the claim text.