底焦高度对冲天炉熔炼很重要,若底焦高度偏高,则焦耗增加,熔化率降低,若底焦偏低,则铁水温度偏低,而且氧化加剧,元素烧损严重。所以应确定正确的底焦高度,才能保证冲天炉的正常熔炼。而底焦高度应分为初焦高度和熔化时底焦的真实高度两个概念。开炉前装入的底焦高度为初焦 If the bottom coke height is high, the coke consumption will increase and the melting rate will decrease. If the bottom coke is too low, the hot metal temperature will be low, and the oxidation will aggravate and the elements will be burned seriously. Therefore, we should determine the correct bottom coke height, in order to ensure the normal melting cupola. The bottom coke height should be divided into the first coke height and melting the end coke real height of the two concepts. The bottom coke height before loading is the first coke