高炉下部存在着炉芯焦炭层(以往被作dead man“死铁层”,温度高达1500～1800℃),该层的透气性和透液性的好坏对高炉炉况和炉体寿命影响很大。由于炉芯焦炭层处在高炉下部,所以无法控制它的透性和透液性。神户钢铁公司材料研究所钢铁技术中心对高炉炉芯结构进行了研究,他们发现炉芯焦炭层是由高炉中心下降的焦炭充填而成 In the lower part of the blast furnace, a coke layer (formerly dead man “dead iron layer” at temperatures up to 1500-1800 ° C) exists. The permeability and liquid permeability of this layer have a great influence on the furnace condition and the life of the furnace Big. As the core coke layer in the lower part of the blast furnace, it can not control its permeability and liquid permeability. The Steel Technology Center of Kobe Steel Materials Research Institute of blast furnace core structure was studied, they found that the core layer of coke from the center of the blast furnace down coke filled