鞍钢技术2023年第3期ANGANGTECHNOLOGY生产实践2850m3高炉TMT开口机故障原因分析及改进措施（本钢板材股份有限公司炼铁总厂，辽宁本溪117021)摘要：针对2580m3高炉炉前TMT开口机常出现的机械故障、液压系统故障，采取了更换轴承、新制销轴、增设销轴润滑孔道和提高工作介质清洁度等改进措施。实践后，旋转油缸和曲柄上下摆动幅度缩小，消除了关节轴承处异音，提高了开口机关节轴承及销轴使用寿命，开口机的平稳运行为高炉稳定顺行提供了保障，降低进口备件采购费用及维修成本120万元/年。关键词：TMT开口机；销轴；关节轴承；比例减压阀中图分类号：TF54D01:10.3969/j.issn.1006-4613.2023.03.008AnalysisonCausesLeadingtoFailureOccurredatTMTTapholeOpeningMachineof2850mBlastFurnaceandImprovementCountermeasuresfortheFailure(GeneralIronmakingPlantofBengangSteelPlatesCo.,Ltd.,Benxi117021,Liaoning,China)Abstract:InallusiontotheproblemthatmechanicalfailuresandhydraulicsystemfailuresoccurredfrequentlyattheTMTtapholeopeningmachineofthe2580mblastfurnacebeforestartingoperations,someimprovementmeasuressuchasreplacingbearings,installingnew-developedpinshafts,addinglubricatingporecanalsforpinshaftsandimprovingthecleanlinessofoperatingmediumweretaken.Afterthesemeasureswereputintopractice,theamplitudeofup-and-downswingingoftherotatedhydrocylinderandthecrankwasdecreased,andalsotheabnormalsoundfromthejointbearingswaseliminated,whiletheservicelifeofthejointbearingsandpinshaftsofthetapholeopeninggearswasprolonged.Sothestableoperationofthetapholeopeningmachineensuredthestableandsmoothoperationoftheblastfurnaceandeventhepurchaseexpensesforimportedsparepartsandmaintenancecostwerereducedby1.2millionyuanRMBperyear.Keywords:TMTtapholeopeningmachine;pinshaft;jointbearing;proportionalpressurereducingvalve开口机是高炉出铁时打开铁口的重要机械设备。鞍钢集团本钢板材股份有限公司炼铁总厂6高炉（2850m²）炉前开铁口设备为德国TMT开口机。近几年,TMT开口机在运行中常出现机械总第441期张廷明文献标识码：A文章编号：1006-4613(2023)03-0037-03ZHANGTingming故障、液压控制系统故障，对炉前渣铁排放产生了不良影响。为了保证高炉的稳定顺行，分析了故障产生的原因，并采取...
