针对不同炉料堆角形成不同料层截面,分析不同平台宽度对批重特征数的影响,提出批重特征数在二次料面堆角大于原始料面堆角时,批重特征曲线分为3个区,即激变区、缓变区和微变区,特征曲线呈下降趋势;在二次料面堆角小于原始料面堆角时,批重特征曲线无明显分区特征,特征曲线呈指数上升趋势。采用1∶10高炉比例模型,研究堆角变化对料层截面的影响,确定了炉料堆角是批重特征数变化的决定性因素之一。 According to the effect of different platform widths on the number of batch features, the batch characteristic curves are divided into three levels when the heap angle of the second level is larger than that of the original level. That is, the transition zone, the transition zone and the micro-change zone, the characteristic curve shows a downward trend. When the secondary heel angle is less than the heel angle of the raw material surface, the batch characteristic curve has no obvious regional characteristics and the characteristic curve shows an exponential rise trend. The model of 1:10 blast furnace was used to study the influence of the change of heel angle on the cross section of the material layer. It was confirmed that the heap angle of the charge was one of the decisive factors for the change of the batch characteristic number.