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一种由转炉改造成的铁水预处理新技术己在神户制铁所得到发展。自1983年11月起这项技术已陆续用于大量生产高牌号钢种。这种铁水预处理炉的容量为80t,有两支喷枪用于喷吹熔剂和顶吹氧。铁水左第一阶段用石灰——氧化铁为主的熔剂进行脱硅和脱磷,然后喷吹苏打粉进行脱硫,不需要除渣。本文介绍了这项工艺的操作控制技术,包括以下几项: ①辅助原料最佳量的计算; ②处理后铁水温度的控制; ③最佳处理制度的显示。该技术已获得转炉操作稳定,精炼成本降低和提高生产率的良好效果。
A new technology for hot metal pretreatment converted from a converter has been developed at Kobe Steel. Since November 1983 this technology has been used for mass production of high-grade steel. This hot metal pretreatment furnace has a capacity of 80 tons and two guns for blowing flux and top blowing oxygen. The first stage of hot metal with lime - iron oxide-based flux desiliconization and dephosphorization, and then blowing soda ash desulfurization, do not need slag. This article describes the operation of this technology control technology, including the following: ① the best amount of auxiliary materials calculation; ② control of molten iron temperature; ③ the best handling system display. This technology has achieved good results with stable converter operations, reduced refining costs and increased productivity.