运用钢包运行周期方法详细统计了钢包在各环节的停留时间，研究了温降规律，计算出钢包运行周期和合理钢包运行个数，并发现钢包运行期间存在的主要问题是：钢包实际投入运行的个数较多，空包运行时间较长，在线烘包时间较短。通过对钢包运行的优化控制，不但缩短了钢包运行的周期，确定出合理的钢包运行个数，而且使空包运行速度加快，钢包运行的工序时间缩短了10min，基本实现了正常生产情况下的红包出钢。钢包的运行控制对节省能源、降低钢包个数，特别是稳定和降低钢水的浇铸温度、促进连铸的顺行和提高铸坯的质量均有着重要意义。
The stationary period of ladle in all processes was detailedly investigated using the running cycle method, the law of temperature drop was researched and the problems of ladle running were found. The results show that the cycle period and reasonable number of ladle can be calculated through the time statistic; there are some unnecessary running ladles; for empty ladle, the running time is longer and online baking time is shorter. Through optimizing the ladle running cycle, not only ladle running cycle is shorten so that the reasonable number of running ladle is ensured, but also the running cycle for empty ladle is speeded up and the running time for ladle is shorten about 10 minutes. Hot ladle turn round can basically be achieved. Control strategy optimization for ladle running is helpful to energy-saving, decrease in ladle number, stabilization and reduction of casting temperature, promotion of continuous casting and improvement of slab quality.
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