| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an iron runner for a blast furnace, which has a life longer than that of a traditional iron runner by reducing erosion of refractory at a side surface portion near the inflow position of molten iron and slag in a flow passage. <P>SOLUTION: The iron runner 1 for a blast furnace includes the flow passage 2 into which the molten iron 12 and slag 13 discharged from a tap hole 11 in the blast furnace 10 flow and which separates the flown in molten iron 12 and slag 13 by specific gravity difference and individually discharges the separated molten iron 12 and slag 13. The iron runner 1 is characterized in that the flow passage 2 has a bottom surface part 20 inclined downward toward the downstream side, and the inclination angle α of the bottom surface part 20 at the position P where the molten iron 12 and slag 13 flow in, is 1.6 degree or more with respect to a horizontal direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
