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一、概况四号高炉有效容积为2516米~3,炉喉直径8200毫米,大钟直径6100毫米,小钟直径2500毫米。第一代于1970年9月30日开炉,1974年2月17日停炉中修。在1970年至1973年6月期间,由于三烧尚未建成,高炉冶炼以块矿为主,辅以少量的二烧球团矿。1973年6月三烧投产后,高炉冶炼则以烧结矿为主。随着烧结率的提
First, an overview Fourth blast furnace effective volume of 2516 m ~ 3, throat diameter of 8200 mm, the clock diameter of 6100 mm, a small bell diameter of 2500 mm. The first generation was opened on September 30, 1970, and the furnace was shut down on February 17, 1974. During the period from 1970 to June 1973, since the third burning was not completed yet, blast furnace smelting was dominated by lump ore, supplemented by a small amount of two-pelletized pellets. After the third burning in June 1973, blast furnace smelting is dominated by sinter. With the rate of sintering mention