| 摘要 |
PROBLEM TO BE SOLVED: To provide a swing chute for blast furnace, in which the occurrence of unbalanced phenomenon of the circumference in a furnace to a bell-less type furnace top charging system having parallel hoppers can remarkably be improved without needing large equipment investment. SOLUTION: This rotary chute 7 is composed of a rotary chute body 7A formed as a groove shape of a trapezoidal type cross-sectional shape opened at the upper part and having flat bottom 12, and a repulsion plate 11 arranged at the tip end part of the rotary chute body 7A and directed downward to the dropping direction so that raw material 1 slip down from this tip end part once collides, and oppositely fixed so as to have a fixed angel to the upper surface of the rotary chute body 7A and also, formed as the flat surface shape having wider width than the width of the bottom plate 12 of the rotary chute 7A.
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