我厂用含钴黄铁矿生产的钴烧结块,在电炉还原熔炼过程中,存在着除锰效率低、操作周期长、炉子寿命短、电耗高、劳动强度大等问题。在学习、应用优选法的过程中,找到了最佳配炭比,使熔炼周期缩短60％,解决了这个老大难问题。电炉熔炼是多因素问题,能否抓住主要矛盾,是能否解决这一问题的关键。经过老工人的共同讨 Cobalt agglomerates produced by our factory with cobalt-bearing pyrite have the problems of low manganese removal efficiency, long operation period, short life of furnace, high power consumption and high labor intensity in the process of electric furnace reduction and smelting. In the process of studying and applying the optimization method, finding the optimal ratio of carbon to charcoal, shortening the melting cycle by 60%, solved the long-standing problem. Electric furnace smelting is a multi-factor issue, and whether it can grasp the major contradictions is the key to solving this problem. After the common discussion of the old workers