Application of fault diagnosis expert system in grinding process

Directing at the complex structure, cockamamie production technology and great operation difficulty of vertical roller mill, this paper constructs the fault expert system to guide and optimize the grinding process. First, the expert database is established with fuzzy cluster analysis, principal component analysis (PCA) and tendency analysis. With support vector machine (SVM) regression, the multiple regression equations of main operation loops are fitted. In online, by looking up expert database and corresponding equations, the system gives out adjustment suggestions according to the variation tendency. Making use of OPC and VC++ techniques, this system has been applied in the practical field. The practical running conditions indicate that this system is effective and credible.