Management technology of steel manufacturing operation based on "procedure" of theory of metallurgical manufacturing process
WANG Yongzhou1, ZHENG Zhong1, ZHANG Shiyu1, GAO Xiaoqiang2
1. School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China; 2. School of Economics and Business Administration, Chongqing University, Chongqing 400044, China
Abstract：Smart steel plants are an inevitable path to achieve the goal of green and low-carbon steel manufacturing and the high-quality development of steel industry. Metallurgical process engineering has become an important theoretical cornerstone for guiding the high-quality sustainable development of the steel industry. To achieve the goal of low-carbon and efficient production in intelligent steel plants and optimize resource/energy allocation,based on the physical essence of dynamic operation of steel manufacturing processes proposed in metallurgical process engineering,intelligent control technology research and development corresponding to the "operation program" of manufacturing processes are carried out. Strive to achieve "operation program" control of the steelmaking-continuous casting-hot rolling manufacturing process through production planning and scheduling technology,in order to adapt to the order driven steel manufacturing model under market demand. This is a regulatory means to promote the orderly,efficient and low-cost operation of the production process,that is,the production planning and scheduling instructions determine the level of equipment utilization,production efficiency,and energy utilization efficiency in steel enterprises. The operation and control technology and practice of steel manufacturing processes with production planning and scheduling as the core were discussed. Aiming at the integrated design of plate assembly and slab,combinatorial optimization of production orders is realized,which effectively improves the yield of the system and creates conditions for large-scale steel production to meet the market demand of personalized multi variety and small batch. Integrated production batch planning can reduce the residual material rate by 1.27% and improve the mass flow control effect in the steelmaking-continuous casting-hot rolling sections compared to the production batch planning based on separate processes.The optimization of mass flow operation based on production scheduling and dynamic scheduling in steelmaking plants can shorten the total production process time by 10%,reduce oxygen consumption fluctuations in the converter process by 49.32%,and improve the control effect of mass flow and energy flow operation. Therefore,through the "operation program" control technology of production planning and scheduling,the manufacturing process system is guided towards a dynamic-orderly,collaborative-continuous operation state,which is conducive to achieving efficient and low-cost optimization of steel manufacturing.
王永周, 郑忠, 张诗雨, 高小强. 基于冶金流程学“程序”的钢铁制造运行管控技术[J]. 钢铁, 2023, 58(11): 43-51.
WANG Yongzhou, ZHENG Zhong, ZHANG Shiyu, GAO Xiaoqiang. Management technology of steel manufacturing operation based on "procedure" of theory of metallurgical manufacturing process[J]. Iron and Steel, 2023, 58(11): 43-51.
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2023, Vol. 58 
