基于介尺度的湿法冶金关联反应器建模与控制

项目名称： 基于介尺度的湿法冶金关联反应器建模与控制

项目编号： No.61273186

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 自动化技术、计算机技术

项目作者： 蒋朝辉

作者单位： 中南大学

项目金额： 80万元

中文摘要： 湿法冶金关联反应器规模大、边界条件复杂、临界反应平衡极易破坏，系统多尺度耦合特性造成工况波动频繁，动态调整困难，严重影响了正常生产及产品产量质量和能耗。为此，本项目探讨湿法冶金多相流动反应体系中介尺度结构的形成机理，深入分析介尺度结构变化对反应器传质、传热和表观动力学等特性的影响规律，构建基于介尺度结构的传递与反应双向耦合模型，建立基于介尺度的湿法冶金关联反应器CSTR模型，提出基于奇异值和分岔理论的大范围参数稳定域的稳定性分析方法，解决融入工艺指标约束条件下湿法冶金关联反应过程的稳定性分析难题；在此基础上，提出面向工艺指标分布趋势的分散协调控制方法，实现工艺指标闭环稳定控制；结合仿真研究和针铁矿法沉铁过程的工程应用研究，验证所提方法的可行性和有效性；形成较为系统的湿法冶金关联反应器精细化建模与控制方法，成果的工业应用将有力地推动湿法冶金企业绿色冶炼、清洁生产。

中文关键词： 介尺度；湿法冶金；关联反应器；建模；控制

英文摘要： Hydrometallurgy is a complex process, in which the interconnected reactors is large- scaled, the boundary conditions are complicated, the critical reaction balance is easily damaged, and the system is multi-scale coupled. Because of these characteristics, the performance fluctuates frequently, and the dynamic adjustment is difficult, which has a serious influence on product output, quality and energy consumption. Therefore, this project will discuss the formation mechanism of meso-scale structures in hydrometallurgical multiphase flow reaction system, and analyze the rule of the changes of meso-scale structures influencing on reactors' mass transfer, heat transfer and apparent kinetics etc. Based on the meso-scale structures, a two-way coupling model of transferring and reaction is presented, as well as the CSTR model of hydrometallurgical interconnected reactors. The stability analysis method for large range of parameter stability regions is presented based on singular value and bifurcation theory, which will solve the problem of stability analysis in hydrometallurgical interconnected reaction under the limited conditions of process index. Based on the distribution trend of process index, the decentralized coordination control method is proposed.The system closed-loop stable oriented process index can be realiz

英文关键词： meso-scale；hydrometallurgy；interconnnection reactor；modeling；control