对焦炭在高炉内的强度变化规律及喷煤的影响进行了研究。应用连续高炉块状带热模型得到失碳率和温度在块状带的分布;使用可调气氛高温抗压实验机测量了在高温下焦炭的抗压强度与失碳率的关系。推导出了不同的焦炭在高炉内实际抗压强度的计算公式,分析了喷煤和煤粉燃烧率对焦炭失碳率的影响,根据喷煤对焦炭强度的影响,给出了计算最佳煤粉燃烧率的方法。 The intensity of coke in the blast furnace and the influence of coal injection were studied. The mass loss rate and the temperature distribution in the strip are obtained by using the continuous blast furnace massive thermal model. The relationship between the compressive strength and the carbon loss rate of coke under high temperature is measured by the high temperature compressive testing machine with adjustable atmosphere. Based on the influence of coal injection on the coke strength, the calculation formulas of the best coal in calculating the optimal coal compressive strength are given. Method of burning rate of powder.