电炉装料时将块状烟煤加入炉内,吹氧的同时吹入压缩空气,利用煤燃烧放出的热量可部分代替电孤热加热废钢。本文通过试验研究了煤的不同加入量、加入方式、供氧强度、吹氧方式、装料次数等诸因素对冶炼时间及电耗的影响,加块煤冶炼工艺与通常工艺相比,熔化期时间约缩短40min.每吨钢每公斤煤节电4kWh左右. When charging the block, the block bituminous coal is charged into the furnace when the electric furnace is charged, the compressed air is blown in at the same time of blowing the oxygen, and the heat released by the combustion of the coal can partially replace the heat of the scrap by the electric arc heat. In this paper, the effects of various factors such as coal addition amount, adding method, oxygen supply intensity, oxygen blowing method, charging times and so on on smelting time and power consumption were studied experimentally. Compared with ordinary process, Shorten the time about 40min per ton of steel saving 4kWh per kilogram of coal.