Since the adoption of economic iron to be made,the grades of ore have dropped drastically and the harmful elements in the raw materials have increased.As a result,the gas permeability of the columns becomes worse and the central gas can not flow out.The harmful elements are enriched in the furnace wall over time with upper serious knot thick.A series of measures were taken to this effect,but they will not get very good results.The purpose of the blast furnace undulation causesthe entire process of blasting,and the blast furnace operation and other blast furnace will have extensive reference.%新钢公司自采取经济炼铁以来,矿石品位大幅度下降,原料中的有害元素增加,从而导致料柱透气性变差,中心气流出不来,有害元素在炉墙富集,形成上部严重结厚.对此采取了一系列措施,但并没有得到很好地效果,最终考虑炸瘤处理.阐述了高炉结瘤原因以及炸瘤的整个过程,对其它高炉结瘤及炸瘤操作有广泛的借鉴意义.
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