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为了适应焦炭质量差和炉料不利的条件,广大铸造工作者对冲天炉进行了大量试验研究,提高铁水温度和节焦取得明显的效果,如两排大间距炉型中央送风及多排小风口,使焦比达1:8左右,平均温度1380～1400℃,平均硅锰烧损为20～30％;两排大间距出铁温度1400～1450℃,焦比1:7～11,烧损较少约12～25％左右。两排大间距冲天炉为什么能得到高温优质铁水;现对其结构参数和工艺参数、元素烧损、铁水质量及焦铁比进行
In order to meet the poor quality of coke and unfavorable conditions of the charge, the majority of foundry workers carried out a large number of test research cupola to improve the hot metal temperature and section coke achieved significant results, such as two rows of large central air-blast furnace and multi-row small outlet , So that the coke ratio of about 1: 8, the average temperature of 1380 ~ 1400 ℃, the average loss of silicomanganese 20 to 30%; two rows of large-spaced iron temperature of 1400 ~ 1450 ℃, coke ratio of 1: 7 ~ 11, Less about 12 to 25% or so. Why two rows of large-pitch cupola can get high-temperature high-quality hot metal; now its structural parameters and process parameters, elemental burning, hot metal quality and iron-iron ratio