ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Development of High Ratio Coke Mixed Charging Technique to the Blast Furnace
Shiro WatakabeKanji TakedaHirobumi NishimuraShigeaki GotoNozomu NishimuraTetsuro UchidaMitsuru Kiguchi
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2006 Volume 46 Issue 4 Pages 513-522


Technique for high ratio coke mixed charging was developed and applied at JFE Steel's East Japan Works (Chiba District) No. 6 blast furnace as the first case of application to a large blast furnace. Simultaneous discharging of ore and coke from the top bunkers, and the precise control of burden distribution technique with the mathematical model considering the segregation behabior of mixed layer have made it possible. Since April 2002, high productivity operation with the world's lowest level of sinter ratio has been conducted using high ratio coke mixed charging technique.

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© 2006 by The Iron and Steel Institute of Japan
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