Abstract: With the gradual improvement of the system science system， the iron and steel production mode has undergone a transformation from the empirical mode to the scientific production mode due to scientific innovation and development， the iron and steel industry with the characteristics of the process system can apply the system engineering approach to think and analyze as a whole， with the technical means of systems science to abstract the complex electric arc furnace steelmaking process description， the complex involving multiple states of matter and energy states of the electric arc furnace The abstraction of the steelmaking process into a unit system with material and energy transformation as constraints， a comprehensive understanding of the energy and material transformation process in the electric arc furnace steelmaking production， the constraints additional process timing factors， you can establish a process model for the simulation of the production process， for the actual working conditions of the electric arc furnace smelting process system analysis and abstraction， to be able to establish a process control model with process operation as the control factor， for the actual production of furnace charge It can analyze the key process factors affecting the technical and economic indexes， solve the problem of "synchronization" of target temperature and carbon content， and achieve the production effect of shortening the smelting cycle of single furnace by 2 minutes.

Key words: Electric Arc Furnace Steelmaking, Systems Engineering, Process Optimization

摘要： 随着系统科学体系的逐步完善，钢铁生产方式由于科技创新和发展也经历了从经验模式转变为科学生产模式，对具有过程系统特征的钢铁工业，可以应用系统工程的方法整体进行思考和分析，借助系统科学的技术手段对复杂的电弧炉炼钢过程进行抽象描述，将复杂的涉及多物态多能态的电弧炉炼钢过程抽象为以物质和能量转化为约束的单元系统，全面理解电弧炉炼钢生产中能量和物质转化过程，对约束条件附加过程时序因素，可以建立过程模型对生产过程进行模拟，针对实际工况电弧炉冶炼过程的系统解析和抽象，能够建立以工艺操作为控制因素的过程控制模型，针对实际生产炉料结构产生的问题，准确分析影响技术经济指标的关键工艺因素，解决了目标温度和碳含量“同步”问题，取得了将单炉冶炼周期缩短2 min的生产效果。

关键词: 电弧炉炼钢, 系统工程, 过程优化