砷盐净化除钴镍过程氧化还原电位的优化设定.pdf

Computer Engineering and Applications计算机工程与应用
2012,48(18)223
砷盐净化除钻锞过程氧化还原电位的优化设定
高伟',唐朝晖',伍铁斌1
GAO Weil. TANG Zhaohuil, WU Tiebin
1中南大学信息科学与工程学院,长沙410083
2.湖南人文科技学院通信与控制工程系,溯南娄底417000
1. School of Information Science and Engineering, Central South University, Changsha 410083, China
2. Ddepartment of Communications &Control Engineering, Hunan Institute of Humanities Science and Technology,
Loudi, Hunan 417000. China
GAO Wei, TANG Zhaohui, WU Tiebin. Oxid ation-reduetion potential optimal setting for purification of removal
of cobalt and nickel with arsenic salt process Computer Engineering and Applications, 2012, 48(18): 223-225
Abstract: In the purification process of zinc hydrometallurgy, the adding of the zinc powder is controlled by Oxida
tion-reduction Poential(ORP )measuring nstrument. It is dificult o establish accurate mathematical model of
ORP and the cobalt ion concentration in purification process. Owing to this problem, a Casc-based Reasoning opti-
mal ORP setting technology is proposed. In order to overcome the problem that KNN is easily disturbed by feature
weighted and the subjectivity of he hie of valu ntic al or tm is used o opimize these parameters. When
the operating mode condition changes, optimal ORP setin system can automaically adjust ORP setting value, add
the amount of zinc in real-time adjustment to achieve optimization of zinc powder added, reducing the consumption
of the zinc powder.
Key words: nickel cobalt removal; Oxidation-reduction Potential; case-based reasoning; genetic algorithm; opti-
mal setting
摘要;在湿法炼锌净化除钻镍过程中,锌粉的加入量由现场的氧化还原电位(ORP)测量仪控制。针对净化除
钻镍过程中ORP与結离子浓度难以建立精确数学模型,提出了一种基于索例推理( Case-based Reasoning
CBR)技术的除钻镍过程氧化还原电位的优化设定方法。为了克服案例推理最近邻检索(KNN)算法易受单个
特征属性干扰及近郐个数选取具有很大的主观性因素影响,采用遗传算法优化特征属性权重和近邻数,提高
案例的检索精度。基于案例推理的ORP优化设定方法在工况条件发生变化时,能够自动调整ORP设定值,实
时调整铧粉添加量,实现了锌粉的优化添加,降低了锌粉的消耗
关键词:净化除钻镍;氧化还原电位(ORP);案例推理;遗传算法;优化设定
文章编号:1002-8331(2012)18-0223-03文獻标识码:A中图分类号:TP391
1引言
效率和产品的质量。净化除钻过程主要通过添加锌
锌粉砷盐净化除钻镍是湿法炼锌常压富氧直接粉置换除去硫酸锌溶萢?的钴离子杂质。由于净化
浸出工艺净化过程的一个重要环节,其钴镍离子浓除钻过程机理复杂,流程长且影响閃素多,特别是杂
度不仅决定了锌粉的消耗量,而且直接影响电解的质离子浓度无法在线检测,导致过程优化控制?难,
基金项日:国家高技术研究发展计划(863)(No.2009AO4Z124);湖南省教育厅资助科研项目(No,1c0704)
作者简介:高伟(1985-),男,硕士研究生,主要研究领域为复杂过程控制建模与优化;唐朝晖(1965-),男,教授,主要研究领域
为复杂过程控制建模与优化等;伍铁斌(1981-),通讯作者,男,主要研究领域为智能控制、优化控制。
E-mail:wutiebing81(@163.com
收稿日期:2011-01-3]條回日期:2011-08-25
DOI:10.378fisn.1002-833].2012.18.047
万方数据