| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for charging a raw material into a bell-less blast furnace, which can inhibit a mixture layer from being formed due to such an action of a charged pellet as to enter into a coke layer or flow into the center side of the blast furnace to involve the coke layer, and can stably operate the blast furnace by keeping gas permeability in the blast furnace at a constantly adequate state. Ž<P>SOLUTION: When charging an ore which is blended with 40 mass% or more of the pellet from a slewing chute onto a coke terrace b that has been already formed along a blast furnace wall C by charged coke, this charging method includes charging the ore into the blast furnace by dropping the ore so as to collide with the surface of an ore layer A which has been already formed on the coke terrace b by the charged ore, when charging the ore through the slewing chute in the second slewing. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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