Lance extraction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 14, 2012
Grant Date -
May 21, 2009
app pub date -
Mar 1, 2006
filing date -
Mar 2, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Solids injection lances for injecting solids into a metallurgical vessel are normally supplied with cooling water from a cooling water circuit through water supply lines and return lines. Supply lines are provided with spaced pairs of connectors and bypass valves, and return lines are provided with similar pairs of spaced connectors and bypass valves. Flexible hoses can be connected between the pairs of connectors to establish supply and return flows of cooling water which bypass segments of the main supply and return lines which can be isolated and removed to allow withdrawal and subsequent replacement of the lances.
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