Metallurgical apparatus – Process
Reexamination Certificate
2007-06-19
2007-06-19
Kastler, Scott (Department: 1742)
Metallurgical apparatus
Process
C266S197000, C266S144000, C432S214000
Reexamination Certificate
active
10818440
ABSTRACT:
An improved blast furnace system for producing molten iron incorporating a preheater to heat the cold blast air used to temper the hot blast temperature is disclosed. The improved blast furnace system comprises a blast furnace, a hot blast main for conveying a supply of hot blast to the blast furnace, a plurality of stoves for heating a supply of cold blast and generating the hot blast, a cold blast main for conveying a supply of cold blast to the plurality of stoves, and at least one cold blast preheater for heating a portion of the cold blast, that has been diverted to the preheater, into heated air and the heated air is mixed with the hot blast to temper the hot blast temperature.
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D'Arrigo Robert
Friedrich Michael
Aker Kvaerner Metals, Inc.
Duane Morris LLP
Kastler Scott
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