| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a blast furnace trough as the blast furnace trough for tapping off molten pig iron from the blast furnace, which achieves the shortening of time for repairing the tip-end part of the molten pig iron trough in actual operation and the extension of the service life in the tip-end part of molten pig iron trough. <P>SOLUTION: At the tip-end part of the molten pig iron trough (semi-circular trough) 10, a flowing path part 12 of the semi-circular trough can be freely and removably fitted to an outline part 11 of the semi-circular trough and also, in order to prevent the leak-out of the molten pig iron from a gap between the flowing path part 12 and a stamping material 21, a step part 15 is arranged between the flowing-path part 12 and the stamping material 21, and stoppers 16 for stopping the slipping are arranged between the flowing-path part 12 and the outline part 11. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
