铝酸钠溶液组分浓度在线分析仪的研制  

On-line Component Concentrations Analyzer in Sodium Aluminate Solution

作　　者：王魏[1] 赵立杰[1,2] 岳恒[1] 柴天佑[1,3] 

机构地区：[1]东北大学流程工业综合自动化教育部重点实验室,辽宁沈阳110004 [2]沈阳化工学院信息工程学院,辽宁沈阳110142 [3]东北大学自动化研究中心,辽宁沈阳110004

出　　处：《控制工程》2010年第1期71-74,122,共5页Control Engineering of China

基　　金：国家863高技术发展计划基金资助项目(2006AA040307);教育部"111计划"基金资助项目(B08015);教育部科学技术研究重大基金资助项目(308007);辽宁省教育厅基金资助项目(05L346)

摘　　要：针对氧化铝生产过程中铝酸钠溶液组分浓度难以在线检测,无法实时指导生产过程的问题,结合铝酸钠溶液的物理化学性质,设计并开发了铝酸钠溶液组分浓度在线分析仪。提出了基于向上查表法的铝酸钠溶液组分浓度软测量模型,并采用PSO优化算法对表值进行计算与更新。所研制的在线分析仪成功应用于某氧化铝厂生产过程,现场应用结果表明在线分析仪运行稳定可靠且易于实施,所提出的铝酸钠溶液组分浓度软测量方法简单可行,取得了明显的应用效果。To to the problem that the component concentration of sodium aluminate solutions is hardly measured on line in alumina production, an analyzer is designed and developed based on the physicochemical properties of sodium aluminate solution. Besides, a softsensor modelling method which composed of look-up table method and PSO algorithm is also proposed. The measurement system proposed has been successfully applied to the production process of a alumina factory, and online measurement of component concentration is realized. The industry experiment results show the steady and reliable character of the proposed soft-sensor method, and the modelling method is simple and effective.

关 键 词：铝酸钠溶液 向上查表法(LUT) PSO 软测量 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]