Analysis, simulation and optimization of dynamic process on techno-interface of BF-BOF route
DU Xue-qiang1,2, LI Xiu-ping3, HAN Wei-gang4, ZHOU Ji-cheng3
1. Central Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
2. Automation Research and Design Institute of Metallurgical Industry Co., Ltd., Beijing 100071, China;
3. Steel Industry Green and Intelligent Manufacturing Technology Center, China Iron and Steel Research Institute Group Co., Ltd., Beijing 100081, China;
4. School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, Hebei, China
Abstract：The techno-interface of BF-BOF route, which connects the two important production processes of blast furnace and converter in the steel manufacturing process, is related to the optimization of the whole process. "One Ladle Technology" is a new technology on the techno-interface of BF-BOF route in recent years. It is necessary to study the operation rules and optimization of the techno-interface of BF-BOF route based on "One Ladle Technology". At present, the analysis of the numerous and complex sub-interfaces of the techno-interface of BF-BOF route is still not in-depth, and it is urgent to develop the dynamic simulation of the techno-interface operation. Time, temperature and material quantity are the basic parameters that run through the steel manufacturing process. Therefore, the control of techno-interface of BF-BOF route takes the hot metal ladle transfer process as the target, the above three parameters as the control objects, and the integrated control and optimization of these parameters as the goal. Based on the operation performance, taking the techno-interface of BF-BOF route with "locomotive-crane" mode as an example, this paper seeks out the characteristics and the control objectives of the techno-interface; analyses event-time rules of the dynamic process; determines each sub-interface of the techno-interface and its time domain, time cycle and probability distribution for each process/event; and summaries the rules of the dynamic process of the techno-interface. Based on above, using FlexSim software, the simulation modules of the BF tapping, hot metal transportation and steelmaking process are established and integrated into a dynamic process simulation system for techno-interface of BF-BOF route. This system provides a research and experiment platform for depth analysis and optimization of the techno-interface of BF-BOF route. It is applied to simulate the transfer process of 260 t hot metal ladles, and the optimal scheme of ladle quantity is obtained.
杜学强, 郦秀萍, 韩伟刚, 周继程. 炼铁-炼钢界面动态运行过程解析与仿真优化[J]. 钢铁, 2023, 58(5): 137-144.
DU Xue-qiang, LI Xiu-ping, HAN Wei-gang, ZHOU Ji-cheng. Analysis, simulation and optimization of dynamic process on techno-interface of BF-BOF route[J]. Iron and Steel, 2023, 58(5): 137-144.
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2023, Vol. 58 
