基于主成分分析的磨矿旋流器机理模型

针对我国以螺旋分级机为1段分级设备的两级磨矿流程，进行了磨矿过程旋流器机理模型的研究.首先，分析了磨矿过程，并结合主成分分析方法确定对系统运行起主要作用的变量用于建模.然后，建立磨矿旋流器机理模型，采用规则推理确定模型参数.最后，应用某选矿厂磨矿分级生产数据设计并进行仿真实验.结果表明，该模型对旋流器溢流粒度分布的仿真与实测结果的动态特性相符.解决了磨矿旋流器运行过程模拟问题，为磨矿分级优化控制研究提供了合适的动态模型.

Research on Hydrocyclone Mechanism Mode in Grinding Process Using Principal Component Analysis

The technological process of double grinding circuits with a spiral classifier is common in Chinese concentration industry. This paper studied on the hydrocyclone mechanism model for such grinding/classification process. First, the grinding process is analyzed, the main variables of the process is determined by principal component analysis. Second, the hydrocyclone mechanism model is established and the model parameters are decided by rule based reasoning. With production data of the grinding/classification process of a concentration plant, the simulation experiments prove that the dynamics from simulation result of the model in this paper are the same with them of real values. The model is effective for grinding hydrocyclone, which solves the simulation problem of hydrocyclone and provides a suitable dynamic model for grinding research.