Chai Tianyou~1,Yang Hui( 1,2* )(1.Research Center of Automation, Northeastern University, Shenyang 110004, China; 2.School of Electronics and Electrical Engineering, East China Jiaotong University, Nanchang 330013, China)
Lower automation level in industrial rare-earth extraction processes results in high production cost, inconsistent product quality and great consumption of resources in China. An integrated automation system for extraction process of rare earth is proposed to realize optimal product indices, such as product purity,recycle rate and output. The optimal control strategy for output component, structure and function of the two-gradcd integrated automation system composed of the process management grade and the process control grade were discussed. This system is successfully applied to a HAB yttrium extraction production process and was found to provide optimal control, optimal operation, optimal management and remarkable benefits.
countercurrent extraction;intelligent optimal control;integrated automation system;rare earths
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