转炉炉役后期的炉况维护

Maintenance of Furnace Condition of Converter in the Later Parts of Campaign

转炉炉壁厚达到300mm左右时进入炉役后期，通过优化冶炼操作、强化溅渣护炉、补炉方法维护炉况，实现冶炼品种钢的目的，取得了明显效果。

Converter has entered the later parts of campaign when fumace wall is about 300mm thick. Some measures have been taken to maintain the furnace condition such as optimizing smelting operation, intensifying slag splashing and improving the method of fettling. Good result has been obtained in smelting grade steel.