通过高炉现场实际情况的调查研究,依据高炉基本原理、炉料在炉内的运行状况、炉顶煤气成分分析及CO对铁氧化物间接还原度的计算,提出了一个能够较早确定铁的直接还原度,进而推算铁水硅含量的模型,实现对铁水含硅量的预报. Based on the investigation of the actual situation in the blast furnace and based on the basic principle of the blast furnace, the operation status of the charge in the furnace, the composition of the top gas and the calculation of the indirect reduction of iron oxides by CO, a method was proposed to determine the direct reduction of iron Degree, and then calculate the silicon content of hot metal model to achieve the prediction of silicon content of hot metal.