对日照钢铁高炉长期超低硅冶炼高效生产实践进行了总结,通过采取加强原燃料管理,创新操作理念,优化渣相,完善上、下部操作制度,提高鼓风动能等一系列技术措施,月平均[Si]最低降低到0.22%,并长期稳定在0.25%左右,高炉长期稳定顺行,利用系数稳步提高到3.7以上,燃料比降低到520kg/t以下。 This paper summarizes the efficient production practice of long-term ultra-low-silicon smelting in Rizhao Iron & Steel blast furnace. By adopting a series of technical measures such as strengthening the management of raw fuel, innovating operation concept, optimizing the slag phase, improving upper and lower operating systems and improving blast kinetic energy, The minimum [Si] is reduced to 0.22%, and the long-term stability is about 0.25%. The blast furnace is stable and long-term, the utilization coefficient is steadily increased to 3.7 and the fuel ratio is reduced below 520kg / t.