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一、前言转炉顶底复合吹炼是七十年代中后期发展起来的转炉炼钢新技术。它在降低渣中氧化铁含量、提高金属收得率、防止熔池过氧化、降低铁合金和熔剂消耗、提高产品质量和转炉炉龄等方面都优于顶吹炼钢工艺,采用复吹工艺冶炼低碳钢所取得的经济效益尤为显著。武钢二炼钢厂自从1984年在三座转炉上进行底吹氩的试生产以来,取得了明显的经济效益,在操作上也积累了一定的经验,但由于供气控制系统是试验时的简单系统,操作
First, the prelude BOF blowing is the mid-late 1970s developed converter steelmaking new technology. It is better than the top blowing steelmaking process in reducing the content of iron oxide in the slag, increasing the metal yield, preventing the peroxidation of the molten pool, reducing the consumption of ferroalloy and flux, improving the product quality and the furnace age of the converter, The economic benefits of low carbon steel is particularly significant. WISCO No.2 Steelmaking Plant has obtained obvious economic benefits since its trial production of bottom-blowing argon on three converters in 1984 and gained some experience in operation. However, since the gas supply control system is simple during the test System, operation