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煉鋼?連鑄生產調度的研究進展

Progress of research on steelmaking?continuous casting production scheduling

  • 摘要: 針對煉鋼?連鑄過程的生產調度問題,首先,對生產調度問題的研究方法進行了總結和評述,梳理了各類方法的特點及適用范圍;其次,介紹了當前國內外鋼廠典型計算機輔助調度系統的一些案例,并討論分析其特點;最后,在以往研究的基礎上,對未來煉鋼?連鑄過程生產調度問題的研究思路和方法提出了建議,針對靜態調度提出了“規則+算法”的研究思路,以國內某特鋼廠為例,提出了基于鋼廠生產模式優化的調度模型構建方法;針對動態調度提出“多工序協同”的研究思路,提出了基于多智能體的煉鋼?連鑄過程多工序工藝、質量與調度的協同控制的研究方法。優化高效的建模及求解方法是解決生產調度問題的重要手段之一,旨在改善當前鋼廠生產計劃編制水平、提高生產計劃的可執行性、加強現場實時調控,對實現煉鋼?連鑄過程穩定化、有序化、連續化運行具有重要意義。

     

    Abstract: Production scheduling is one of the key technologies in steel manufacturing process. It plays a significant role in reducing the production cost and improving the production efficiency of iron and steel enterprises. In recent years, with the rapid development of intelligent steel-manufacturing technology, production scheduling has attracted increasing attention and become a research hotspot in the field of iron and steel metallurgy. The process of production scheduling in the process of steelmaking?continuous casting was summarized and discussed through reviews of previous researches, and the characteristics and application scopes of various methods were compared and classified. Typical cases of the computer-aided scheduling system in domestic and overseas steelmaking plants were discussed, and the characteristics of each system were studied and analyzed comparatively. On the basis of the previous studies, forward-looking strategies and a methodology of production scheduling were proposed for the future study of steelmaking?continuous casting process. For static scheduling, a new concept “rules + algorithm” was proposed, and a scheduling model construction method based on the production mode optimization of a steel mill was developed for a domestic special-steelmaking plant as a case study. For dynamic scheduling, multi-process collaboration was suggested, and a collaborative control method based on multi-agent was proposed. This method was developed for multi-process control, quality control, and scheduling control of the steelmaking-continuous casting process. An optimized and effective method for modeling and solving is one of the important means to solve the production-scheduling problem, aiming at improving the levels of setting up production plan and the feasibility of production planning. Meanwhile proposed method for modeling and solving can strengthen the on-site real-time control in steel mills and is of great significance to realize stable, orderly, and continuous operation in steelmaking-continuous casting process.

     

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