To prevent the overheating of fingers, to prevent the fusion of scraps to the fingers and to enable the charging of preheated scraps to a desired position inside a blast furnace.
A tower body 21 provided with a scrap charging gate 22 and a scrap discharging gate 23 is supported traversing freely by a traverse driving unit 15 between the scrap feeding position Q upward of the furnace body 2 of a blast furnace 1 and a preheating position P at the upper sideward part of the furnace body 2, a preheating chamber is formed at the upper part of a gate 25 arranging the air permeable and openable gate 25, a duct 31 having an exhaust gas intake gate 35 at the lower part of it facing the exhaust gas gate 11 of a blast furnace 1 when the tower body 21 is at the preheating position P is connected to the side wall part of a preheating chamber, an exhaust gas sucking gate 52 connected to the exhaust gas discharging path 41 is arranged facing the scraps discharging gate 23 of the tower body 21 at the preheating position P.
NIWA YUKIO
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