Fuel lance structure for a uniflow regenerative shaft furnace
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United States of America Patent
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Sep 15, 1981
Grant Date -
N/A
app pub date -
Sep 25, 1979
filing date -
Feb 28, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Coking of liquid fuel supplied through a fuel lance in a calcining furnace is prevented by surrounding a fuel tube in the fuel lance with a tubular jacket forming an annular gap between the jacket and the fuel tube for supplying a cooling medium through the lance. The jacket may be additionally provided with insulation which can be protected from damage caused by downwardly traveling bulk material by the additional provision of a protective tube.
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