| 摘要 |
PROBLEM TO BE SOLVED: To prevent leakage of molten steel between a movable replacing nozzle and fixed nozzle after nozzle change. SOLUTION: This equipment is provided with a fixed nozzle 2 installed to the bottom of a tundish 1, a movable nozzle 3 installed in a sliding way to the underside of the fixed nozzle 2 concentrically with the fixed nozzle 2, a movable replacing nozzle 5 installed adjacent to the movable nozzle 3 in such a way as to slide along the underside of the fixed nozzle 2, and a cylinder equipment 6 to push the movable nozzle 5 toward the movable nozzle 3 to remove the movable nozzle 3 from the underside of the fixed nozzle 2 and to install the movable replacing nozzle 5 concentrically to the underside of the fixed nozzle 2. The underside of the movable replacing nozzle 5 is provided with a shielding plate 20 to cover between the movable replacing nozzle 5 and the movable nozzle 3.
|
