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七十年代中后期发展起来的顶底复合吹炼技术,在八十年代获得了迅速发展,并转化为大规模的工业应用。目前,顶底复合吹炼技术的优越性已为全世界钢铁冶金界所公认。它是在顶吹转炉的基础上,通过转炉底部的底吹装置,吹入适量的搅拌气体、改善熔池的动力学条件,使其顶底复吹转炉兼有顶吹和底吹的优点,同时又在一定程度上克服了顶吹和底吹的缺点。至此,顶底复合吹炼技术在国内外获得了迅速的发展。如日本,
The top-bottom composite blowing technology developed in the mid-1970s gained rapid development in the 1980s and turned into a large-scale industrial application. At present, the top and bottom composite blowing technology superiority has been recognized by the world’s steel metallurgy sector. Based on the top-blown converter, the bottom blown device at the bottom of the converter blows in an appropriate amount of stirring gas to improve the kinetic conditions of the molten pool so that the top-bottom double-blown converter combines the advantages of top blowing and bottom blowing, At the same time, to a certain extent, it overcomes the shortcomings of top blowing and bottom blowing. So far, the top and bottom compound blowing technology has gained rapid development both at home and abroad. Such as Japan,