以生产高炉为基础,通过Rist操作线模型计算了＂理想＂高炉的还原剂消耗。针对＂理想＂高炉的计算和我国目前高炉碳排放潜能的分析,提出了在我国现有条件下,降低高炉燃料比是减排高炉碳排放的主要措施,然而考虑到整个钢铁厂的能量平衡,应该选择最佳的方法减少CO2排放量。氧气高炉、炉顶煤气循环、高炉喷吹废旧塑料以及使用预还原炉料都可以依靠流程的系统优化不同程度地减少CO2排放量,并保持系统的高效环保。
Based on blast furnace operating conditions,the reducting agent consumption for an ＂ideal＂ blast furnace was calculated by Rist Operating Line model.Considering the calculation results and the potential of reducing CO2 emission in China,it is proposed that decreasing blast furnace fuel ratio is the main measure to reduce CO2 emission.In integrated iron and steel enterprises,there are many ways to reduce the fuel consumption of blast furnace,however,the energy balance of the whole enterprise should be considered.In this sense,some new technologies,such as Oxygen BF,top gas circulation,plastic injection and using prereduction burden,etc.may be adopted to reduce the CO2 emission of blast furnace ironmaking with high efficiency and good environment.
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