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前言在先前的报导中我们曾经有一种想法,即在底吹氧气转炉中用一根或少数的矩形截面的异型喷枪代替现用的多根喷枪,同时并不恶化吹炼条件。这种想法的主要根据,是可以将异型枪出口的周长作得比同样截面积圆枪的周长大得多,从而增大了氧气流股和熔池介质进行动量交换的界面,将氧气带入熔池的动能较好地传递给熔池,形成有益的搅拌,并避免熔池过多的摆动和喷
INTRODUCTION In the previous reports we had the idea of replacing one or more existing lances with one or a few rectangular cross-section shaped guns in the bottom blowing oxygen converter without deteriorating the blowing conditions. The main basis for this idea is that the perimeter of the exit of the profiled gun can be made much larger than the perimeter of the gun of the same cross-sectional area, increasing the momentum exchange between the oxygen stream and the bath medium. Oxygen The kinetic energy brought into the bath is better transferred to the bath, forming beneficial agitation and avoiding excessive sway and squirting of the bath