单机架轧机多块钢轧制策略研究及流程仿真

Research on multi-slab rolling strategy and process simulation for single stand rolling mill

我国现有单机架轧机厚板生产线20余条,约占国内厚板生产线总量的30%。但基于单机架轧机的组坯轧制策略和生产装备的研究较为缺乏,为了提高单机架轧机的生产效率、减少能源消耗,实现厚板生产线的效益最大化,研究了单机架轧机的多块钢轧制策略和控制逻辑。针对TMCP两阶段轧制工艺条件下中间坯厚度大、板坯待温时间长的工艺特点,讨论了单机架轧机多块钢轧制策略和控制方法,开发了多块钢轧制策略的核心算法。根据加热、轧制、冷却和矫直等相关工序模型的计算结果和生产数据,采用AnyLogic流程仿真软件构建了单机架轧机厚板生产线的轧制流程仿真平台,对不同轧制工艺下多块钢轧制的生产过程进行仿真分析,实现组坯策略优化,通过优化工艺布局、增设旁通辊道等措施,提高设备利用率和轧机产能,为选择最优的轧制工艺和轧制策略提供了参考依据。

There are more than 20 heavy plate production lines with single stand rolling mill,accounting for about 30%of the total number ofheavy plate production lines in China.However,it is lack of research on batch rolling strategy and production equipment based on single stand rolling mills.To improve the production efficiency of single stand rolling mills,reduce the energy consumption and maximize the benefits of such production line,the multi-slab rolling strategy and the control logic of such technique are studied.Focusing on the process characteristics of large slab thickness and long waiting time under the condition of TMCP two-stage rolling process,the rolling strategy and control method of multi-slab rolling are discussed,and the core algorithm of such strategy is developed.According to the calculation results and production data of heating,rolling,cooling,straightening and other related process models,the AnyLogic process simulation software is used to build a rolling process simulation platform,and the production process of multi-slab rolling under different rolling processes is simulated and analyzed,the process is optimized,and the equipment utilization rate and rolling mill capacity are improved by optimizing the process layout and adding bypass roller tables,providing a reference for selecting the optimal rolling process and rolling strategy.