高炉布料的焦层坍塌建模方法研究

炉料分布是影响高炉内煤气流分布的决定性因素之一。在高炉布料过程中，矿石的冲击作用使部分焦层坍塌并堆积到炉中心区，考虑这一因素对料层分布的影响，在试验和统计分析基础上，采用一种简化方式模拟了布料过程的焦层坍塌现象。它以专家规则修正料面曲线，依据物料平衡关系求解模型参数，通过分析高炉径向温度和径向矿焦比分布，间接验证了布料模型中焦层坍塌修正方法。

Study on Modeling for Coke Collapse of Burden Distribution in a Blast Furnace

Burden distribution is one of the key factors affecting the gas distribution in the blast furnace.The collision of ore on the coke layer makes the coke collapsed and piled up in the centre of the blast furnace during the course of the loading.Considering its effect on the material's distribution,the phenomenon of coke collapse was discussed concisely when making the simulated model of burden distribution based on the experiment and statistical analysis,which corrected the burden curves by expert rules and obtains model parameters by the relation of material balance.The validity of the correction of the model considering coke collapse was demonstrated by analysing the radial distributions of both temperature and ore-to-coke ratio in the blast furnace.