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以喷煤后高炉内H2含量变化的生产数据和变化规律为基础,利用相关理论,着重分析H2含量变化对高炉冶炼过程影响的机制,从而确定了高炉内一定含量的H2有利于高炉操作过程的稳定和指标优化。另外,通过对高炉冶炼过程氢、碳等元素的物料平衡计算,分析高炉冶炼过程由于燃料结构优化而用H2取代CO还原和降低燃料比所达到的降低CO2排放的实际效果。
Based on the production data and the variation law of the content of H2 in the blast furnace after coal injection, the mechanism of the influence of H2 content on the blast furnace smelting process is emphatically analyzed, and then it is determined that the content of H2 in the blast furnace is favorable to the operation of the blast furnace Stability and index optimization. In addition, by calculating the material balance of hydrogen, carbon and other elements in blast furnace smelting process, the actual effect of reducing CO2 emission achieved by replacing the CO with H2 and reducing the fuel ratio in the blast furnace smelting process due to the optimized fuel structure is analyzed.