转炉-连铸区段精细化控制节能潜力研究  

Energy-saving potential research of precise control on BOF-CC section

作　　者：冯凯[1,2] 徐安军[1,2] 汪红兵[3] 贺东风[1,2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]北京科技大学高效钢铁冶金国家重点实验室,北京100083 [3]北京科技大学计算机与通信工程学院,北京100083

出　　处：《重庆大学学报（自然科学版）》2013年第11期44-50,共7页Journal of Chongqing University

基　　金："十一五"国家科技支撑计划重大项目(2006BAE03A07);中央高校基本科研业务费(FRF-TP-12-086A)

摘　　要：针对转炉-连铸区段钢水温度和操作时间不同控制精度所蕴含节能潜力的问题,建立基于生产实践的钢水温度和操作时间精细化控制模型,提出相应的计划额外能耗和实绩额外能耗的概念和计算方法。并以某钢厂生产钢种SPHC-W的生产实绩数据为例,对目前钢水温度和操作时间控制水平的节能潜力进行计算,得到计划潜在温度损失为7.25℃,实绩潜在温度损失特征值为10.10℃。进一步分析,得知在现有控制水平下,温度控制精度提高1℃,实绩潜在温度损失特征值降低0.33℃,时间控制精度提高1min,计划潜在温度损失降低1.76℃,实绩潜在温度损失降低1.62℃。To evaluate the energy-saving potential under different control precisions of molten steel temperature and operation time in BOF-CC section, a precise control model based on production practices is established. And a calculation method of planning extra temperature loss and production process temperature loss of the precise control model is proposed. Taking a steel plant production data of SPHC-W as an example, the energy-saving potential under existing control of molten steel temperature and operation time is calculated. The planning extra potential temperature loss is 7.25 ℃ and the production process potential temperature loss eigenvalue is 10.10 ℃. For further analysis under existing control the level, when the control accuracy of molten steel temperature is increased by 1℃, the production process potential temperature loss eigenvalue can be reduced by 0.33 ℃. When the control accuracy of operation time is increased by 1 min, the planning extra potential temperature loss can be reduced by 1.76 ℃ and the production process potential temperature loss eigenvalue can be reduced by 1.62 ℃.

关 键 词：炼钢 节能潜力 精细化控制 钢水温度 操作时间 过程控制 

分 类 号：TF741.1[冶金工程—钢铁冶金]