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D0I:10.13374.issn1001-053x.2011.10.011 第33卷第10期 北京科技大学学报 Vol.33 No.10 2011年10月 Journal of University of Science and Technology Beijing 0ct.2011 一种有利于提高DHCR比例的热轧批量计划编制 方法 芦永明四徐安军贺东风田乃媛 北京科技大学治金与生态工程学院,北京100083 ☒通信作者,E-mail:uyongming2001@qg.com 摘要针对一体化生产过程中连铸出坯顺序与热轧轧制顺序的协调问题,提出了计划顺序协调因子,并在此基础上建立了 有利于提高直接热装(DHCR)比例的热轧批量计划优化模型.模型在满足热轧轧制工艺的基础上充分考虑了铸坯连铸出坯 计划与热轧轧制计划的协调.采用改进遗传算法一两交换启发交叉算法对模型进行了求解.最后,针对大批量少品种和小 批量多品种两组板坯对某钢厂2250mm和1580mm轧线进行了仿真,仿真结果表明模型可以大大减少铸坯因顺序不协调而 引起的在进入加热炉前的等待时间,进而提高板坯DHCR比例. 关键词热轧:一体化生产:热装;计划编制:遗传算法 分类号TP29 Hot-rolling batch planning method available to improve DHCR proportion LU Yong-ming,XU An-jun,HE Dong feng,TIAN Nai-yuan School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:luyongming2001@qq.com ABSTRACT Acoordination factor for the sequence of plans was proposed aimed to coordinating the casting production plan with the hot rolling production plan in an integrated production process.An optimization model of the hot-rolling batch plan available to improve the direct hot charging rolling (DHCR)proportion was established.On the basis of meeting the requirements of the hot rolling process, the model considers well the coordination of the casting production plan and the hot rolling production plan.A modified genetic algo- rithm,the two-exchange crossover heuristic algorithm,was used to solve the model.Finally,two slab groups which are large batch quantity with seldom types and small batch quantity with multiple types were simulated in the 2250mm hot rolling line and the 1580mm hot rolling line in a steel plant.The results show that the model could greatly reduce the waiting time of slabs caused by the casting slab sequence conflicts before entering the reheating furnace,and the DHCR proportion is increased correspondingly KEY WORDS hot rolling:integrated production:hot charging:planning:genetic algorithms 在炼钢-连铸-热轧一体化生产中,由于炼钢-hot charging rolling,DHCR)比例影响很大.本文基 连铸和轧制工艺约束的不同,炼钢连铸批量计划于一体化生产,首次提出了协调连铸出坯顺序与热 和热轧批量计划之间的协调问题对生产过程中的热 轧轧制顺序的“计划顺序协调因子”,从而有效地提 送热装产生很大的影响.文献-5]研究了一体化 高了一体化生产中热轧批量计划中的DHCR比例. 生产下热轧批量计划问题,文献[69]对热送热装 1问题分析 问题进行了研究.目前的研究都没有考虑连铸出坯 顺序与热轧轧制顺序的协调,而连铸出坯顺序与热 1.1热轧批量计划 轧轧制顺序的协调对降低板坯在进入加热炉前的等 直接热装(DHCR)、冷装(cold charging rolling, 待时间,提高板坯热送热装,特别是直接热装(direct CCR)和热装(hot charging rolling,HCR)的铸坯被送 收稿日期:201009一16 基金项目:“十一五”国家科技支撑计划资助项目(2006BAE03A07)第 33 卷 第 10 期 2011 年 10 月 北京科技大学学报 Journal of University of Science and Technology Beijing Vol. 33 No. 10 Oct. 2011 一种 有 利 于 提 高 DHCR 比例的热轧批量计划编制 方法 芦永明 徐安军 贺东风 田乃媛 北京科技大学冶金与生态工程学院,北京 100083 通信作者,E-mail: luyongming2001@ qq. com 摘 要 针对一体化生产过程中连铸出坯顺序与热轧轧制顺序的协调问题,提出了计划顺序协调因子,并在此基础上建立了 有利于提高直接热装( DHCR) 比例的热轧批量计划优化模型. 模型在满足热轧轧制工艺的基础上充分考虑了铸坯连铸出坯 计划与热轧轧制计划的协调. 采用改进遗传算法———两交换启发交叉算法对模型进行了求解. 最后,针对大批量少品种和小 批量多品种两组板坯对某钢厂 2 250 mm 和 1 580 mm 轧线进行了仿真,仿真结果表明模型可以大大减少铸坯因顺序不协调而 引起的在进入加热炉前的等待时间,进而提高板坯 DHCR 比例. 关键词 热轧; 一体化生产; 热装; 计划编制; 遗传算法 分类号 TP29 Hot-rolling batch planning method available to improve DHCR proportion LU Yong-ming ,XU An-jun,HE Dong-feng,TIAN Nai-yuan School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail: luyongming2001@ qq. com ABSTRACT Acoordination factor for the sequence of plans was proposed aimed to coordinating the casting production plan with the hot rolling production plan in an integrated production process. An optimization model of the hot-rolling batch plan available to improve the direct hot charging rolling ( DHCR) proportion was established. On the basis of meeting the requirements of the hot rolling process, the model considers well the coordination of the casting production plan and the hot rolling production plan. A modified genetic algo￾rithm,the two-exchange crossover heuristic algorithm,was used to solve the model. Finally,two slab groups which are large batch quantity with seldom types and small batch quantity with multiple types were simulated in the 2250 mm hot rolling line and the 1580 mm hot rolling line in a steel plant. The results show that the model could greatly reduce the waiting time of slabs caused by the casting slab sequence conflicts before entering the reheating furnace,and the DHCR proportion is increased correspondingly. KEY WORDS hot rolling; integrated production; hot charging; planning; genetic algorithms 收稿日期: 2010--09--16 基金项目:“十一五”国家科技支撑计划资助项目( 2006BAE03A07) 在炼钢--连铸--热轧一体化生产中,由于炼钢-- 连铸和轧制工艺约束的不同,炼钢μ连铸批量计划 和热轧批量计划之间的协调问题对生产过程中的热 送热装产生很大的影响. 文献[1--5]研究了一体化 生产下热轧批量计划问题,文献[6--9]对热送热装 问题进行了研究. 目前的研究都没有考虑连铸出坯 顺序与热轧轧制顺序的协调,而连铸出坯顺序与热 轧轧制顺序的协调对降低板坯在进入加热炉前的等 待时间,提高板坯热送热装,特别是直接热装( direct hot charging rolling,DHCR) 比例影响很大. 本文基 于一体化生产,首次提出了协调连铸出坯顺序与热 轧轧制顺序的“计划顺序协调因子”,从而有效地提 高了一体化生产中热轧批量计划中的 DHCR 比例. 1 问题分析 1. 1 热轧批量计划 直接热装( DHCR) 、冷装( cold charging rolling, CCR) 和热装( hot charging rolling,HCR) 的铸坯被送 DOI:10.13374/j.issn1001-053x.2011.10.011
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