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1.前言 转炉中的热补偿技术,是使用大量废钢及使用预处理铁水来熔炼低磷钢和高碳钢,以及对含Mn矿石进行熔融还原等方面必须的关键技术。其中,以增大转炉排气的二次燃烧量和使熔池有效地受热的方法同炉内添加焦炭的方法相比,因为不存在钢水增硫的问题,所以从熔炼低硫钢和补偿热量不受限制等方面来看是一项有利的技术。 川崎制铁(株)水岛制铁所已经在纯氧顶底吹转炉(K—BOP)上确立了二次燃烧技术,但在惰性气体底吹转炉(LD—KGC)上,由于钢水搅拌力比K—BOP小,所以从抑制钢渣发泡及传递燃
1. INTRODUCTION The thermal compensation technology in converters is the key technology that must be used in the mass reduction of scrap and the use of pretreatment of molten iron to melt low phosphorus and high carbon steels and to melt reduction of Mn ore. Among them, in order to increase the amount of secondary combustion of the converter exhaust gas and the method of effectively heating the molten pool compared with the method of adding coke in the furnace, since there is no problem of adding sulfur in the molten steel, Unrestricted and so on is a favorable technology. Kawasaki Steel Co., Ltd. has implemented the secondary combustion technology on the K-BOP. However, on the inert gas bottom-blowing converter (LD-KGC), due to the stirring force of molten steel Less than K-BOP, so from the inhibition of steel slag foam and transfer of combustion