To provide a charging method of a blast furnace feed in which when ore and coke are charged into a bell-less blast furnace from a lower bunker out of upper and lower two-stage bunkers arranged in a furnace top part of the bell-less blast furnace to form a coke-mixed ore layer in the blast furnace, the blast furnace feed can be charged into the bell-less blast furnace while a mixing ratio of ore and coke is maintained to almost constant ratio.
When coke input in an upper bunker 5 out of upper and lower two-stage bunkers 5, 6 arranged at a furnace top part of a bell-less blast furnace 1 is transferred into the lower bunker 6, the coke is transferred into the lower bunker 6 in a state at least one of two or more feed discharge ports 51 is closed. In addition, when ore input in the upper bunker 5 is transferred to the lower bunker 6, the ore is transferred into the lower bunker 6 in a state all of the feed discharge ports 51 are opened.
KIKUCHI OSAMU
YAMAMOTO KOJI
KUWABARA MINORU
IWAI YUKI
| JPS63259377A | 1988-10-26 | |||
| JPH03166309A | 1991-07-18 | |||
| JP2005154867A | 2005-06-16 | |||
| JPS63317606A | 1988-12-26 | |||
| JPS63259377A | 1988-10-26 | |||
| JPH03166309A | 1991-07-18 | |||
| JP2005154867A | 2005-06-16 | |||
| JPS63317606A | 1988-12-26 |
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka
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