上海铁合金厂从1961年开始利用小高炉处理贫锰矿生产富锰渣,供给电炉冶炼硅锰合金和中低炭锰铁。十多年来,我们围绕贫锰矿的合理利用,开展群众性的科学实验和综合利用活动,取得一定成果。热装冶炼中炭锰铁的试验就是其中一项。搞这项试验的目的有三:①用户对中、低炭锰铁的需求成倍增加,矿山愈采愈贫,能提供的富矿远远不能满足需要,用贫锰矿生产中炭锰铁成为一个新课题。②生产中炭锰铁的旧工艺流程分 Shanghai ferroalloy plant from 1961 the use of small blast furnace to deal with poor manganese ore production of manganese-rich slag, smelting furnace for the supply of silicon-manganese alloy and low-carbon ferromanganese. For more than a decade, we have conducted mass scientific experiments and comprehensive utilization activities around the rational utilization of poor manganese ore and achieved certain results. One of the tests of carbon ferromanganese in hot-rolled smelting is one. There are three purposes to engage in this experiment: ①The demand for medium and low carbon ferromanganese is exponentially increased; the mine is more and more poor; the rich ore that can be provided can not meet the needs far, and the production of carbon ferromanganese from poor manganese ore becomes a new Question. ② production of carbon ferromanganese old process points