中文摘要：

实际炼钢-连铸生产存在着多阶段、多并行机，以及在精炼阶段具有多重精炼方式，从而大大增加了炼钢-连铸生产调度难度．目前已有的炼钢-连铸生产调度研究由于仅仅针对简单生产方式而难以应用于目前大型炼钢-连铸生产调度．而实际生产过程中的以人工为主的调度方法速度慢、优化程度低，极易造成炉次在设备间的冗余等待时间过长，导致钢水温度下降，甚至造成连铸断浇事故．本文针对中国宝钢某大型炼钢厂的多重精炼方式且存在着可重入调度下的炼钢-连铸生产调度问题进行研究，提出了多种调度顺序方法和设备指派方法，通过仿真实验对多种调度顺序方法和多种设备指派方法组合而成的各种启发式方法进行了研究．最后将本文提出的性能最好的启发式方法应用于该大型炼钢厂的炼钢-连铸生产调度，钢水平均日冗余等待时间得到显著降低．

英文摘要：

There are multi-converter, multi-refining machine and multi-continuous caster, multi-stage refining and reentrant line in the steelmaking-continuous casting （SMCC） production process, which leads to the difficult scheduling. Existing scheduling researches only focus on simple production mode and are difficult to apply to the actual production process. Manual scheduling method is low efficient and easily leads to too long waiting time, the molten steel temperature drop, and even causes casting break. The paper researches the scheduling problem of SMCC production process in the largest iron and steel company （BaoSteel） in China. A variety of scheduling sequence methods and equipment assignment methods are proposed. Many heuristic methods are studied by means of simulation experiments for various scheduling sequence methods and multi device assignment methods. At the end of this paper, the best proposed method is applied to the SMCC production in the large iron and steel enterprises. The real-time application show that the proposed method can dramatically shorten the redundant waiting time for molten steel.