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1. 前期历史日本首先将氧气用于平炉及托马斯转炉.1951年开始于发展平炉氧气炼钢的同时组建大型制氧设备并于1955年推广.1955年氧气炼制的粗钢占总粗钢产量的比例为76.5%,至1961年为95%.氧气炼钢、全碱性炉衬、燃烧控制及扩大炉容显著改善了碱性平炉(BOH)的燃耗与生产能力.在氧耗为50Nm~3/t钢(主要为加速废钢熔化以实现转炉化)时,生产能力高达100t/h.但事实表明BOH不适合用大氧量将铁水转化成钢.自1953年日本钢管(NKK)即在托马
1.Previous history Japan first used oxygen in open hearth furnaces and Thomas furnaces. In 1951, it started to develop large-scale oxy-oxygen steelmaking equipment and formed a large-scale oxygen plant and popularized it in 1955. Crude steel produced by oxygen refining in 1955 accounted for the total crude steel output To 76.5% in 1961 and 95% in 1961. Oxygen steelmaking, all-alkaline lining, combustion control and expansion of furnace capacity significantly improve the burnup and production capacity of BOH furnace.With the oxygen consumption of 50Nm ~ 3 / t steel (mainly to speed up the melting of scrap to achieve converter), the production capacity of up to 100t / h.But the fact that BOH is not suitable for large amounts of oxygen into the molten iron into steel.Since 1953, Japan’s steel pipe (NKK) Toma