Article(id=1311350696021155924, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, articleNumber=null, orderNo=null, doi=10.13355/j.cnki.sfyj.2026.02.016, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1765814400000, receivedDateStr=2025-12-16, revisedDate=1767801600000, revisedDateStr=2026-01-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1790579969649, onlineDateStr=2026-09-28, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790579969649, onlineIssueDateStr=2026-09-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790579969649, creator=13701087609, updateTime=1790579969649, updator=13701087609, issue=Issue{id=1311350424792301947, tenantId=1146029695717560320, journalId=1146120122248306696, year='2026', volume='45', issue='2', pageStart='129', pageEnd='272', issueExtLink='null', onlineDate='null', pubDate='1776614400000', pubDateStr='2026-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790579904983, creator='13701087609', updateTime=1790588502603, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1311386485903942043, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1311386485903942044, tenantId=1146029695717560320, journalId=1146120122248306696, issueId=1311350424792301947, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=256, endPage=263, ext={EN=ArticleExt(id=1311350696230871125, articleId=1311350696021155924, tenantId=1146029695717560320, journalId=1146120122248306696, language=EN, title=Design and Optimization of an Automated Control System for Extraction-Stripping in Uranium Purification and Conversion Waste Liquid, columnId=1152626641181700664, journalTitle=Hydrometallurgy of China, columnName=Experiment Research, runingTitle=null, highlight=null, articleAbstract=

The treatment process of uranium purification and conversion waste liquid involves a continuous circulation system composed of neutralization, extraction, stripping and other units. Its stability is highly dependent on the precise control of small flow in each link, and it is easy to cause system overshoot and oscillation when the parameters of PID controller are adjusted by trial and error method based on experience, which leads to system disorder. In view of the above problems, it is proposed to establish a mathematical model with the key equipment ' lean organic phase pump ' as the control object. Five kinds of PID parameter tuning methods, such as classical Ziegler-Nichols (Z-N) method, improved Z-N method with set point weighting, optimal setting method based on ISTE criterion, critical proportional zone method and relay feedback self-tuning method, are compared and studied. The simulation analysis is carried out by MATLAB and Simulink, and the optimal method is applied to the field for experimental verification. The test results show that compared with the traditional Z-N method, the PI controller based on the optimal setting method based on the ISTE criterion performs best. When the field flow step changes, its key performance indicators are better than other methods, which can fully meet the strict requirements of the process flow. For the small flow control system in the treatment of uranium purification and conversion waste liquid, this method is used to adjust the PI parameters, which can effectively suppress overshoot, speed up response and ensure accuracy, and significantly improve the stability and reliability of the whole process. This study can provide a reference for the controller optimization of similar industrial processes.

, authors=Yupeng GUAN, Xianyu WU, Lu HOU, Jiang HOU, Hongjun JIN, Lianxi ZHAO, Yuna WU, authorsList=Yupeng GUAN, Xianyu WU, Lu HOU, Jiang HOU, Hongjun JIN, Lianxi ZHAO, Yuna WU, authorCompany=null, correspAuthors=Xianyu WU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1311350696541249622, articleId=1311350696021155924, tenantId=1146029695717560320, journalId=1146120122248306696, language=CN, title=铀纯化转化废液萃取-反萃取自动化控制系统的设计与优化, columnId=1152626641328501305, journalTitle=湿法冶金, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=

铀纯化转化废液的处理流程涉及中和、萃取、反萃等多单元构成的连续循环系统，其稳定性高度依赖于各环节微小流量的精确控制，但依赖经验采用试凑法整定PID控制器参数易引发系统超调与振荡，从而导致系统紊乱。针对上述问题，提出以关键设备“贫有机相输送泵”为控制对象建立数学模型，对经典Ziegler-Nichols（Z-N）法、引入设定点加权的改进Z-N法、基于ISTE准则的最优设定法、临界比例带法及继电反馈自整定法等5种PID参数整定方法进行了对比研究，通过MATLAB与Simulink进行了仿真分析，并将最优方法应用于现场进行试验验证。试验结果表明：相较于传统Z-N 法，基于ISTE准则的最优设定法整定的PI控制器表现最佳，在现场流量阶跃变化时，其关键性能指标均优于其他方法，能完全满足工艺流程的严格要求；对于铀纯化转化废液处理中的微小流量控制系统，采用该法进行PI参数整定，能有效抑制超调、加快响应并确保精度，显著提升整个工艺流程的稳定性和可靠性。该研究可为同类工业过程的控制器优化提供参考。

, authors=关宇鹏, 伍宪玉, 侯录, 侯江, 金洪军, 赵连喜, 伍玉娜, authorsList=关宇鹏, 伍宪玉, 侯录, 侯江, 金洪军, 赵连喜, 伍玉娜, authorCompany=null, correspAuthors=伍宪玉, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=POFie91K0bTYeVKSp3jFjA==, magXml=VYzlXuIf5AzLuRyuuSbOCw==, pdfUrl=null, pdf=LD+vS6fxT+xeRwmVR2FQqQ==, pdfFileSize=1615461, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=C668JXZ5A3pxwtQ4lfZPJw==, mapNumber=null, fund=null)}, authors=[Author(id=1311350698378354779, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1311350696021155924, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1311350698458046557, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1311350696021155924, authorId=1311350698378354779, language=EN, stringName=Yupeng GUAN, firstName=Yupeng, middleName=null, lastName=GUAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing　101149, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1311350698525155422, tenantId=1146029695717560320, journalId=1146120122248306696, articleId=1311350696021155924, authorId=1311350698378354779, language=CN, stringName=关宇鹏, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=核工业北京化工冶金研究院，北京　101149, bio={"content":"

关宇鹏（1999—），男，硕士，助理工程师，主要研究方向为铀矿山自动化及信息化。

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关宇鹏（1999—），男，硕士，助理工程师，主要研究方向为铀矿山自动化及信息化。

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