针对DHCR和DR(direct hot charging rolling and direct rolling)工艺的特点,提出了一种包括批量计划层、作业调度层和动态调度层的DHCR和DR一体化计划调度三层体系结构。批量计划层包括合同计划优化模块和一体化批量计划优化模块,作业...针对DHCR和DR(direct hot charging rolling and direct rolling)工艺的特点,提出了一种包括批量计划层、作业调度层和动态调度层的DHCR和DR一体化计划调度三层体系结构。批量计划层包括合同计划优化模块和一体化批量计划优化模块,作业调度层包括作业调度优化模块,动态调度层包括基于规则的动态调度主控模块和实时控制器。分析了各层的结构、功能、特点和若干设计指导思想。按照该体系结构开发了武钢二热轧DHCR生产管理系统,生产计划的75%可实现直装轧制(平均装炉温度在700℃以上),加热炉产能提高了30%,同时减少了计划编制和调度所需要的时间。实际应用结果表明,该体系结构是行之有效的。展开更多
This paper presented the application of the direct hot charge rolling (DHCR) technology in Ningbo Steel. Five aspects have been systematically addressed and analyzed, which include sales order, production schedule p...This paper presented the application of the direct hot charge rolling (DHCR) technology in Ningbo Steel. Five aspects have been systematically addressed and analyzed, which include sales order, production schedule programming, steelmaking,continuous casting and hot-rolling. The average DHCR product rate has reached 55% and the average slab charging temperature 699℃. As a result, the production cost, the energy consumption and the CO2emission have been significantly reduced. It is concluded that a breakthrough in application of the DHCR technology has been achieved at Ningbo Steel.展开更多
随着宝钢分公司十一五项目陆续投产,公司的能源平衡受到了严峻考验。DHCR计划(Direct Hot Charge Rolling直接热装计划)作为一种不改变现有工艺、设备状况条件下的生产组织方法,能够有效地兼顾热轧工序产能提升和节能降耗双重需求。但由...随着宝钢分公司十一五项目陆续投产,公司的能源平衡受到了严峻考验。DHCR计划(Direct Hot Charge Rolling直接热装计划)作为一种不改变现有工艺、设备状况条件下的生产组织方法,能够有效地兼顾热轧工序产能提升和节能降耗双重需求。但由于DHCR因为钢种单一且受合同结构的影响,计划单重通常较小。如果单纯地提高DHCR计划数量必将导致计划单重明显下降进而引起热轧辊耗上升,这种情况持续下去可能在热轧工序产生"节能不降耗"的奇怪现象。只有同时提高DHCR的计划单重才可以把DHCR的优势充分发挥出来。本文以DHCR计划实施入手,对影响DHCR计划单重的因素进行分析并提出相应的解决办法。展开更多
文摘针对DHCR和DR(direct hot charging rolling and direct rolling)工艺的特点,提出了一种包括批量计划层、作业调度层和动态调度层的DHCR和DR一体化计划调度三层体系结构。批量计划层包括合同计划优化模块和一体化批量计划优化模块,作业调度层包括作业调度优化模块,动态调度层包括基于规则的动态调度主控模块和实时控制器。分析了各层的结构、功能、特点和若干设计指导思想。按照该体系结构开发了武钢二热轧DHCR生产管理系统,生产计划的75%可实现直装轧制(平均装炉温度在700℃以上),加热炉产能提高了30%,同时减少了计划编制和调度所需要的时间。实际应用结果表明,该体系结构是行之有效的。
文摘This paper presented the application of the direct hot charge rolling (DHCR) technology in Ningbo Steel. Five aspects have been systematically addressed and analyzed, which include sales order, production schedule programming, steelmaking,continuous casting and hot-rolling. The average DHCR product rate has reached 55% and the average slab charging temperature 699℃. As a result, the production cost, the energy consumption and the CO2emission have been significantly reduced. It is concluded that a breakthrough in application of the DHCR technology has been achieved at Ningbo Steel.
文摘随着宝钢分公司十一五项目陆续投产,公司的能源平衡受到了严峻考验。DHCR计划(Direct Hot Charge Rolling直接热装计划)作为一种不改变现有工艺、设备状况条件下的生产组织方法,能够有效地兼顾热轧工序产能提升和节能降耗双重需求。但由于DHCR因为钢种单一且受合同结构的影响,计划单重通常较小。如果单纯地提高DHCR计划数量必将导致计划单重明显下降进而引起热轧辊耗上升,这种情况持续下去可能在热轧工序产生"节能不降耗"的奇怪现象。只有同时提高DHCR的计划单重才可以把DHCR的优势充分发挥出来。本文以DHCR计划实施入手,对影响DHCR计划单重的因素进行分析并提出相应的解决办法。