1.绪言佐贺关熔炼所在1998年实施了大规模的设备改造。确立了粗铜年产450kt的体制。此后,随着铜精矿品位的降低,粗铜产能有减少的倾向,但通过提高自熔炉处理能力,在2003年又将自熔炉的装料量上限从历来的160t/h提高到171t/h,恢复和维持了粗铜的产量。另外,与此同时,还瞄准冰铜中 1. Introduction Sawatang Smelter in 1998 to implement a large-scale equipment transformation. Established a blister copper system with an annual output of 450kt. Since then, blister copper production tends to decrease as the grade of copper concentrates declines. However, by increasing the capacity of self-smelting furnaces in 2003, the upper limit of the feed of smelting furnaces has been increased from 160t / h to 171t / h , Restored and maintained the production of blister copper. In addition, at the same time, also aimed at matte