一、前言 1980年全国各类铁合金总耗电量约49亿度,占全国用电量的2％左右,其中75硅铁虽只占整个铁合金产量的30％,而能耗却占60％左右。炭质还原剂质量对电炉铁合金(特别是硅铁)的电耗指标影响极大。我国铁合金生产所用的炭质还原剂大多为冶金焦或其筛下焦,因冶金焦反应性能较差、比电阻低,导致 I. Introduction In 1980, the total power consumption of various types of ferroalloy was about 4.9 billion kWh, accounting for about 2% of the national electricity consumption. Although 75 ferrosilicon accounted for only 30% of the total ferroalloy production, energy consumption accounted for about 60% . The quality of carbonaceous reductant furnace electric iron alloy (especially ferrosilicon) power consumption indicators have a great impact. Most of the carbonaceous reducing agents used in the production of ferroalloys in our country are metallurgical coke or its underscore coke, which has poor reactivity due to metallurgical coke reaction and low specific resistance