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根据历年全国重点钢铁企业和首钢转炉工序能耗变化,简述中国钢铁企业转炉炼钢节能技术进步和首钢转炉负能炼钢的情况。通过首钢北京、首秦和迁钢三地钢厂钢产量、炼钢工序能耗、转炉工序能耗及连铸工序能耗变化,阐述钢产量与不同工序能耗之间的关系。重点分析新旧折标系数、转炉煤气回收量等因素对转炉、炼钢工序能耗的影响。在对比分析国内先进转炉煤气回收量的基础上,指出转炉、炼钢工序的节能潜力,并提出基本对策和建议。
According to the changes in the energy consumption of key steel companies and Shougang converter over the years, this paper briefly introduces the technological progress of converter steelmaking in China’s iron and steel enterprises and the situation of steelmaking at negative energy in Shougang converter. Through the steel production of the steel mills in Shougang Beijing, Shouqin and Qiangyang, the energy consumption in the steelmaking process, the energy consumption in the converter process and the energy consumption in the continuous casting process, the relationship between the steel output and the energy consumption in different processes is described. Focus on the analysis of the new old discount rate, the amount of converter gas recovery and other factors on the converter, steel process energy consumption. On the basis of comparative analysis of the advanced converter gas recovery in China, the potential of energy saving in converter and steelmaking process is pointed out and the basic countermeasures and suggestions are put forward.