基于S-GA的连铸热轧工序成本研究.pdfVIP

256 2014，50（3） Computer Engineering and Applications 计算机工程与应用 基于 S-GA 的连铸热轧工序成本研究 周 健，汪 雄，方 婷 ZHOU Jian, WANG Xiong, FANG Ting 同济大学 机械工程学院 工业工程系，上海 201804 Department of Industrial Engineering, School of Mechanical Engineering, Tongji University, Shanghai 201804, China ZHOU Jian, WANG Xiong, FANG Ting. Cost study of continuous casting and hot charging process based on S-GA. Computer Engineering and Applications, 2014, 50（3）：256-260. Abstract：Focusing on the current state that the waiting billets caused by die exchange lead to huge energy consumption in the continuous casting and hot charging process of iron and steel enterprises and combining the SMED and TAKT concepts and tools in lean production, a total cost model of the continuous casting and hot charging process is built considering cost of die exchange, energy consumption and customer satisfaction. Structural Genetic Algorithm is used to solve the problem. Practical data of an iron and steel company is applied to the model. The optimum solution is obtained. Also validity and feasibility of the model and the algorithm are examined. It builds a theoretical basis for energy saving through improving die exchange process. Key words：continuous casting and hot charging; Single Minute Exchange of Die（SMED）; takt; structural genetic algo- rithm; energy saving 摘 要：针对能耗型钢铁企业连铸热轧由于工序换模导致钢坯等待而产生巨大能耗的现状，引入精益中的快速换模 （SMED）及节拍（TAKT）思想，考虑连铸热轧中的换模成本、能耗成本以及客户需求，研究建立了连铸热轧的综合成 本模型，通过结构式遗传算法对模型进行求解。以某钢铁企业的实际生产数据为例，求得了最优解，并验证了模型 与算法的有效性和可行性，为钢铁企业通过改进换模实现节能提供了理论依据。 关键词：连铸热轧；快速换模；节拍；结构式遗传算法；节能 文献标志码：A 中图分类号：TP391 doi：10.3778/j.issn.1002-8331.1308-0365 1 引言 出了连铸热轧在中国的应用还有待发展。文献[8]研究 钢铁企业为能耗型企业，节能是钢铁企业的重要课 了连铸热轧技术未来的前景及发展方向。 题。连铸热轧是钢铁企业的重要工序，但其较长的换模 目前国内外对于连铸热轧节能问题的研究，主要集 时间导致钢坯长时间地等待，从而产生额外的能耗，大