散体矿岩移动规律模拟及高粘矿岩助流研究

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1、中南大学硕士学位论文散体矿岩移动规律模拟及高粘矿岩助流研究姓名：张春阳申请学位级别：硕士专业：采矿工程指导教师：曹平20090410ABSTRACTTherearemanyfieldsrelatedtotheparticleflow，suchasmedicine，ceramics，cement，coal，metallurgy，grocery，energy，chemistryetc．Orepluging、bondingandarchingoftenoccurredwhendrawing．Notonlyseri

2、ouslyaffectedthenormalproduction，butalsobringaboutsecurityproblems．Thisthesisisbasedonoredrawingtheoryandgranularmechanicstheory．Combinationofsimilaritytheory，wedesignedexperimentalmodel，andcarryedoutbottomoredrawingexperiment．reproducedtheprocessofdrawing

3、atthescene，identifiedtheimpactoforedrawingfactorsandothers．Wesimulateoredrawingunderdifferentconditionsbyusing‘DiscreteElementMethod’software．Obtainedthesameresultwithphysicalmodelingexperiments．Demonstratedsimulationexperimentcorrectness．Providedanimporta

4、nttheoreticalbasisforhi曲viscousincompactore．rockflow—aidingmechanismresearchingandhopperrebuilding．Accordingtoabove—mentionedresults，thisthesiscombinewiththe‘AluminumCorporationOfChinaLimited’approvalproject‘ResearchOfMineCrushingStationOreBinsDrawingTechn

5、ic’．Proposedthatuseoverhangedflow—aidinginstrumentsinhopperandthe‘Super．highMolecularWeightPolythene’sheetsasthehopperinnersurfacescaleboardtoimprovetheorefluidity．W

6、eachievedthedesiredresultsintheindustrialexperiment．Thereleaseratereachesmorethan95％．safet

7、yindicatorsreaches1OO％．Wesimulateagain，notonlyverifiedtheconclusionofindustrialexperiment，butalsooptimizedoredrawingprogram．Theoryandpracticestudiesindicatedthattheresearchresultsforsolvingorepluging、bondingandarching，providedatheoreticalbasisforsolvingpra

8、cticalengineeringproblems．Atthesametimehadanimportanteconomicandsocialbenefitsandalsohadapplicationvalueforengineeringproblemsrelated．KEYWORDS：granularparticles，oredrawing，orefluidity，highviscousincompactore—rock，flow-aidingIl原创性声明本人声明，所呈交的学位论文是本人在导师指导下进行的

9、研究工作及取得的研究成果。尽我所知，除了论文中特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得中南大学或其他单位的学位或证书而使用过的材料。与我共同工作的同志对本研究所作的贡献均己在论文中作了明确的说明。作者签名：继至璺日期：丑年卫月旦日学位论文版权使用授权书本人了解中南大学有关保留、使用学位论文的规定，即：学校有权保留学位论文并根据国家或湖南省有关部门规定送交学位论文，允