Specialized metallurgical processes – compositions for use therei – Processes – Process control responsive to sensed condition
Patent
1995-01-19
1996-12-17
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Process control responsive to sensed condition
75553, C21C 532
Patent
active
055849091
ABSTRACT:
A method of improving the post-combustion heat recovery in a basic oxygen furnace by controllably forming a foamy slag. The foamy slag is generated by increasing the lance height and reducing the rate of lance height reduction during the oxygen blowing cycle. The foamy slag is controlled to prevent slopping by calculating the approximate starting point of the peak decarburization period for the charge and then adjusting the oxygen flow rate to be at a minimum at the commencement of the peak decarburization period.
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Andrews Melvyn
LTV Steel Company, Inc.
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