状态估计软测量技术在湿法冶金控制中的应用

摘要

湿法冶炼过程中一些工艺参数的测量非常难于实现,这直接影响了工艺的质量控制.人们对此已探讨过许多解决方法,采用软测量技术,并结合自动清洗技术实现湿法冶炼过程中pH的检测与控制,也是一种行之有效的方法.设计一个基于状态观测器的pH软测量系统对主导变量进行估计,同时采用自动清洗技术实现对辅助变量的测量,从而构成pH自动控制系统,具有简单实用的优点.%It was difficult to measure some kind of parameters of hydrometallurgy process,and this will influence the quality control of the process.Engineers have been studied some methods to improve these situations,soft-sensing technique was one of them.Here a state estimator was designed for the estimation of the dominant variable of pH,which an automatic sampling cleaning system was designed for the measurement of auxiliary variable,and then a controller was constructed based on the state observer.Advantages of this design include simple and practical.