Tapping pipe and system for a converter or electric arc furnace
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United States of America Patent
Stats
-
May 10, 1994
Grant Date -
N/A
app pub date -
Mar 17, 1993
filing date -
Mar 17, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tapping pipe is provided for a melt vessel having a predetermined melt maximum bath level X.sub.m. The tapping pipe defines a flow passage therethrough which has a discharge zone having flow cross-sections approximately the same as the cross-sections of the flow profile of a free flowing stream of the melt from a melt bath level X.sub.0 between 30% and 70% of the maximum melt bath level X.sub.m. The discharge zone can be provided by a brick defining the discharge zone, together with additional bricks defining a feed zone and a transition zone between the feed zone and the discharge zone. In making a number of replacements of the tapping pipe in a converter, the length of the brick defining the transition zone can be gradually reduced so as to compensate for the wear of the converter lining.
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Cited Art Landscape
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