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一、概述 ASEA公司研究开发单电极直流电弧炉,已有12年之久。他们最初开发直流电弧炉技术有两个目的:(1)以直流电弧炉取代以废钢为原料的常规三相交流电弧炉;(2)以直流电弧炉作为ELRED工艺的精炼炉。ASEA公司的直流电弧炉不仅能用于炼钢、而且还能用于铁矿粉还原,以及广泛地用于矿粉生产铁合金,所以直流电弧炉引起人们强烈的兴趣。自从1972年以来,ASEA公司已与9家钢厂合作,进行直流电弧炉的工业性试验,炉子的容量为4—70t,已经生产了液态金
First, an overview ASEA research and development of single-electrode DC EAF, for 12 years. They originally developed the DC EAF technology for two purposes: (1) replacing the conventional three-phase AC EAF using scrap with EAF; and (2) using a DC EAF as the refining furnace for the ELRED process. DC EAFs are of great interest not only for steelmaking, but also for iron ore reduction and extensive use in the production of ferroalloys for slag production. Since 1972, ASEA has worked with nine steel mills to conduct industrial tests for DC electric arc furnaces with furnace capacity of 4-70 t, liquid gold