Article(id=1314907895809012437, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2026.02.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1761753600000, receivedDateStr=2025-10-30, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791428072167, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791428072167, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791428072167, creator=13701087609, updateTime=1791428072167, updator=13701087609, issue=Issue{id=1314907832038810534, tenantId=1146029695717560320, journalId=1235980550691926019, year='2026', volume='46', issue='2', pageStart='1', pageEnd='214', issueExtLink='null', onlineDate='null', pubDate='1774972800000', pubDateStr='2026-04-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791428056964, creator='13701087609', updateTime=1791430468655, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314917947500486818, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314917947500486819, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907832038810534, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=83, endPage=88, ext={EN=ArticleExt(id=1314907896584958678, articleId=1314907895809012437, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Influence of Ring Width of Annular Flat Bottom of Conical Section on Separation Performance of Hydrocyclone, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=

To address the problem of discharged overflow carrying coarse particles during classification of high-concentrated and coarse-grained ores with a large-scale hydrocyclone (Φ838 mm), it was proposed that the cone section of a hydrocyclone was truncated and an annular flat bottom was constructed. Using computational fluid dynamics (CFD), a systematic study was conducted on the influence of different ring width of that annular flat bottom on the hydrocyclone separation performance. The results show that when the ring width increases from 0 to 50.28 mm, the yield of extremely coarse particles within the size fraction (＋212 μm) in the hydrocyclone overflow decreases from 49.97% to 28.08%, and the yield of particles within the size fraction (10-212 μm) increases from 40.64%to 57.80%. A scaled-down hydrocyclone model (Φ100 mm) was fabricated based on the similarity principle, and laboratory tests were carried out with it. It is found that in variation of the separation performance of the Φ100 mm hydrocyclone with the ring width of annular flat bottom is highly consistent with the simulation results of the Φ838 mm hydrocyclone. This has verified that the classification of high-concentrated and coarse-grained ore, a hydrocyclone with its conical section structured with an annular flat bottom can effectively prevent overflow of coarse particles and increase the percentage of particles within the effective size fractions.

, authors=Hanbing XU¹, Zhanhang XIAO¹, Lilong HUANG², Rui CUI³, authorsList=Hanbing XU, Zhanhang XIAO, Lilong HUANG, Rui CUI, authorCompany=null, correspAuthors=null, 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=1314907899059598040, articleId=1314907895809012437, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=锥尾平底宽度对水力旋流器分离性能的影响研究, columnId=1236276107125780707, journalTitle=矿冶工程杂志, columnName=选矿, runingTitle=null, highlight=null, articleAbstract=

针对Φ838 mm大型水力旋流器在高浓度粗粒度分级中的溢流跑粗问题，提出了一种通过截断锥体在其尾部形成圆环状小平底的结构设计。采用计算流体力学方法，系统研究了不同锥尾平底宽度对旋流器分离性能的影响。结果表明，锥尾平底宽度由0增至50.28 mm时，旋流器溢流中极粗粒级（+212 μm粒级）产率由49.97%降至28.08%，而有效粒级（10~212 μm粒级）产率由40.64%增至57.80%。基于相似原理建立Φ100 mm旋流器缩比模型并开展实验室试验，发现Φ100 mm旋流器分离性能随锥尾平底宽度的变化趋势与Φ838 mm旋流器仿真计算结果高度吻合，由此验证了高浓度、粗粒度分级条件下，锥尾平底结构可有效抑制溢流跑粗，提高有效粒级含量。

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徐寒冰（1989-），男，湖北咸宁人，硕士，工程师，主要研究方向为粉体精密分级理论及复杂矿石分选工艺。E-mail：icebing417@163.com

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徐寒冰（1989-），男，湖北咸宁人，硕士，工程师，主要研究方向为粉体精密分级理论及复杂矿石分选工艺。E-mail：icebing417@163.com

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