Multipurpose lance

Details Multipurpose lance Multipurpose lance

1996-12-13

1999-02-02

Kastler, Scott

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

266 47, 266225, C21C 530

Patent

active

058658769

ABSTRACT:
A steelmaking furnace is cleaned and maintained using a lance which includes an elongated lance body including at least one first nozzle opening proximal to an end that extends into the furnace and at least one other second nozzle opening spaced upwardly from the first nozzle opening. Structure defines at least one passageway extending through the body to the first nozzle opening and to the second nozzle opening. Gas supply means selectively introduces different gases into the passageway. The lance apparatus can be operated to emit either different gases or the same gas from the first and second nozzle openings at the same time. The gases emitted include an oxygen-containing gas and a gas that includes an inert gas.

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