ISSN1008-9446CN13-1265/TE承德石油高等专科学校学报JournalofChengdePetroleumCollege第25卷第2期,2023年4月Vol.25,No.2,Apr.2023料斗集沙过程与主要参数的离散元仿真研究郝腾达a,高占凤b,郑明军a,吴文江c(石家庄铁道大学a.机械工程学院;b.工程训练中心;c.教务处,河北石家庄050043)摘要:为了探究料斗与沙粒作用特性及转速、斗张角和除沙深度等主要参数对集沙量的影响,借助离散元法,在EDEM软件中创建料斗—沙粒的离散元模型,对料斗集沙过程沙粒的运动特性进行仿真分析,阐述了料斗除沙过程的形成机理,为料斗强度提供了校核依据,并使用单一因素法对料斗的主要集沙参数进行探究。仿真结果表明料斗转速、斗张角和除沙深度对料斗集沙量有明显影响。当料斗转速为25r/min、斗张角120°和除沙深度110mm时,料斗集沙量达到最大。研究结果对提高料斗的除沙效率具有实际意义,为后续集沙装置优化设计提供一定参考基础。关键词:料斗;离散元;除沙车;EDEM中图分类号:TH225文献标志码:A文章编号:1008-9446(2023)02-0057-06DiscreteElementSimulationStudyofSandCollectionProcessandMainParametersofHopperHAOTeng-daa,GAOZhan-fengb,ZHENGMing-juna,WUWen-jiangc(a.SchoolofMechanicalEngineering;b.EngineeringTrainingCenter;c.OfficeofAcademicAffairs,ShijiazhuangTiedaoUniversity,Shijiazhuang050043,Hebei,China)Abstract:Inordertoexploretheeffectofinteractivecharacteristicsofhopper,sandparticlesandinfluenceofmainparameterssuchasspeed,openingangleofthebucketanddepthofsandremovalontheamountofsandcollection,usingthediscreteelementmethod,ahopper-sanddiscreteelementmodeliscreatedinEDEMsoftware,movementcharacteristicsofsandprocessforhoppersetisana-lyzedinthesimulation,andthehopperloadresistancefigureisobtained.Thispaperexpoundstheformationmechanismofhopperbedcleaningprocess,andprovidescheckbasisforhopperstrength,besides,themainsandcollectionparametersofthehopperisexploredbyusingsinglefactormethod.Studiesshowthathopperspeedbucketangleanddepthofhopperbedcleaningsethavesignificanteffectsonthesediment.Whenthehopperspeedreaches25r/min,thebucketangleis120°andbedcleaningdepthis110mm,thesandhoppersetsmaximumamount.Thestudyresultshavepracticalsignificanceforimprovingbedcleaningefficiencyo...
