高炉–转炉区段物质流运行优化

Optimization of Interface Material Flow Operation of BF-BOF Section

高炉-转炉区段是钢铁生产流程中物质流输入输出种类和量最多的区段,同时又是联接高温物质流运行的重要区段。区段物质流运行优化,尤其是铁水输送与处理过程的优化是影响铁水预处理铁水到站温度和转炉冶炼节奏的重要因素。在分析三家不同钢厂"一包到底"技术的物质流网络结构的基础上,提出了高炉-转炉区段物质流网络设计的基本原则。以首钢京唐钢厂为例,应用排队论理论分析了理想状态下高炉-转炉区段铁水包周转模式,实际运行模式与理想模式对比分析可知,理想模式下,铁水包在线运行个数可以减少1~2个,高炉出铁至KR铁水脱硫站的铁水温降降低20℃以上,而且铁水包寿命可提高15.5%。高炉-转炉区段物质流运行优化取得了显著的节能和减排效果,为钢铁生产流程的绿色化提供了重要支撑。

BF-BOF section is the process with the most kinds and quantities of material-flow input andoutput,and also the important connecting processfor the preceding and the following processes.Optimization of the material operation,especially HM transportation,is an important factor that affects theoperation schedule of BOF and HM temperature to the KR.Based on the analysis and comparison of materialflow network with“One Ladle Technology”of three enterprises,difference between operation scheduleand ladle management is put forward.The queuing theory has been applied to analyze the ideal mode of theHM ladle among the BF-BOF sections.It shows that with the ideal mode,ladles in operation on line can bereduced by1~2,temperature drop of HM can be reduced by20℃,and the service life of ladles can beincreased by15.5%.The optimization of the BF-BOF section can gain remarkbly energy saving and emissionreduction,and it is an important support for the green development of steel manufactory process.