| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of refining treatment such as desulfurizing and desiliconizing. SOLUTION: In the blast furnace runner equipment provided with: a hot metal flow channel 4 through which hot metal discharged from a blast furnace 2 flows; an adding apparatus 12 adding a refining agent to hot metal flowing through the hot metal flow channel 4; a stirring apparatus 11 having an impeller 10 stirring the hot metal; and a slag exhaust spout 13 exhausting slag 14 on the hot metal formed after the stirring by the stirring apparatus 11 to the outside, the width of the impeller 10, the position of a level difference part 8, the height H and gradient of the level difference part 8, the position of the adding apparatus 12, and the position of the slag exhaust spout 13 are most properly set. COPYRIGHT: (C)2008,JPO&INPIT
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