顶吹氧气转炉是依靠氧枪高度、供氧流量的变更及合适的造渣制度,来获得最佳的渣与金属液的乳状化。然而控制不当,将会造成氧枪的沾钢、结瘤、炉底被击穿、喷溅等现象。此外,在吹炼末期,溶池金属含碳量降低,于是,铁、锰等氧化加剧,渣中氧化铁含量急剧上升。由于碳氧反应减弱,搅拌强度降低,溶池出现较大的化学不平衡。转炉顶底复合吹炼法,是克服以上缺陷而发展的新技术,并已成为当前炼钢工艺的主要发展趋势。转炉顶底复合吹炼,以顶部氧枪喷吹氧气为主,再从炉底吹入少量气体而得名。按其底吹气体的种类、方法及数量不同,已开发了拾余种转炉顶底复合吹炼炼钢法。本文 The top-blown oxygen converter relies on the height of oxygen lance, the change of oxygen supply flow, and the appropriate slagging regime to obtain the best emulsion of slag and liquid metal. However, improper control, will cause oxygen lance James steel, knot, bottom was breakdown, splashing and so on. In addition, at the end of the blowing, the carbon content of the molten pool decreased, so that the oxidation of iron, manganese and other exacerbated the iron oxide content of slag increased sharply. Due to the weakening of the carbon-oxygen reaction, the stirring intensity is reduced and the pool shows a large chemical imbalance. Converter top blowing method is to overcome the above shortcomings and the development of new technologies, and has become the main trend of the current steelmaking process. Converter top blowing compound to the top of the oxygen lance oxygen-based injection, then blowing a small amount of gas from the bottom of the furnace named. Depending on the type, method and quantity of gas blown at the end, more than ten kinds of converter top-blowing compound steelmaking processes have been developed. This article