| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for charging a raw material into a blast furnace, by which a layer of the charged raw material with reduced ventilation resistance can be formed without forming any coke slit. <P>SOLUTION: The method is used for operating the blast furnace, in which a blast furnace-charged raw material, including an ore raw material such as a sintered ore, a pellet and a massive ore and a coke, is charged into the blast furnace 10 through a rotating chute 16. When charging the blast furnace-charged raw material into the blast furnace, a center coke layer 12d is formed in an axis part, and a mixed layer 12e composed of a mixture of the ore raw material and the coke is formed around the center coke layer 12d so as to prevent formation of any coke slit. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
