钢轧厂精炼区域钢包天车高效运行控制

HIGHLY EFFICIENT OPERATION CONTROL OF LADLE CRANE IN REFINING AREA OF STEEL ROLLING MILL

炉外精炼是现代炼钢厂内必不可少的环节,对于品种的开发、钢水质量的提升以及钢水在炼钢与连铸之间的缓冲都起到重要作用。精炼区域的高效运行是钢厂运行控制的核心,钢包天车的运行更是该区域运行控制的重点。详细分析了天车运行参数,并结合钢厂工装特点,提出了天车运行有效作业率、天车运行系统作业率和天车峰值作业率概念,为新钢厂的设计和老钢厂系统优化提供了参考。同时提出了天车作业运行控制原则,使天车运行控制与生产排程深度结合,满足精炼区域高效生产需求。优化后,单联工艺路线钢水精炼区域滞留时间由85.37min降到79.94min;双联工艺路线滞留时间由153.5min降到135.76min。

The refining is an essential link in modern steel-making plant,which plays an important role in the development of varieties,the improvement of molten steel quality and the buffer between steel-making and continuous casting.The efficient operation of the refining area is the core of the operation control of the Steel Plant,and the operation of the ladle crane is the key point of the operation control in this area.Based on the analysis of the operating parameters of the crane,the concepts of the effective operating rate of the crane,the operating rate of the crane operating system and the peak operating rate of the crane are put forward.It provides a reference for the design of new steel Plant and system optimization of old steel plant.At the same time,the principle of crane operation control is put forward,which makes the crane operation control and production scheduling deeply combined to meet the high-efficient production demand in the refining area.After optimization,the retention time of molten steel in the refining zone decreased from 85.37 min to 79.94 min in the single-process line and from 153.5 min to 135.76 min in the dual-process line.