| 摘要 |
PURPOSE:To make reduction in the amount of a charge in a blast furnace unnecessary and to eliminate unstable operation during rising period after reduction by lowering a panel for repair as the charge in the furnace lowers and by fitting the panel to a part to be repaired. CONSTITUTION:The position and range of a damaged part in the wall of a blast furnace are checked before repair by measuring the temps. of the iron shell and stave coolers. A panel P for repair is suspended from a wire 5 and put in the furnace through an opening in the top of the furnace such as a manhole 3 during operation. At this time, the amount of a charge 6 in the furnace is not reduced. As the charge 6 lowers, the panel P is lowered to the part A to be repaired along the wall 1, and the support parts of the panel P are fixed on the wall 1 in an unblasted state. |
