Removal of slag and/or steel build-up from lances
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United States of America Patent
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Aug 3, 1999
Grant Date -
N/A
app pub date -
Mar 20, 1998
filing date -
Mar 25, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of removing slag and/or steel build-up from lances in steel making furnaces includes blasting dry ice (solid CO.sub.2) pellets on to a hot lance as it is being drawn out of a furnace. A refractory or ceramic coating may be applied to the lance while it is being inserted into the furnace.
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