基于系统动力学的烧结工序铁素流动态特性分析

运用系统动力学原理,采用因果关系和存量流量分析方法,在相对宏观的层面构建了钢铁生产过程烧结工序的铁素流动态模型。仿真结果准确,验证了系统动力学原理应用于钢铁生产流程研究的适用性及建模仿真的有效性。计算表明:烧结矿铁素流随时间的增加而不断增大,然后逐渐趋于稳定,且烧结矿铁素流在烧结初始时段增加速度最快;返回铁素流波动越大,烧结矿铁素流、损失铁素流和烧结机铁素重新达到输出稳定状态所需时间越长。

Analysis of Dynamic Characteristics of Iron Element Flow During Sintering Process Based on System Dynamics

A dynamic model of iron element flow during sintering process is established from relative macroscopic aspect based on system dynamics using the methods of causal loop diagrams and stock-flow diagrams. Accurate simulation results verify the applicability of system dynamics which is applied to the study of steel production process and the validity of the modeling and simulation. The calculated results show that the iron element flow of sinter which increasing fastest in the initial period increases with the time and tends to be stable; the bigger the fluctuation ratio is, the longer the time be needed for recovery of the iron element flow of sinter, the iron element loss flow and the stock of the iron element in sintering machine.