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外文翻译--衬板的新发展情况和趋势 英文版【优秀】.pdf

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外文翻译--衬板的新发展情况和趋势 英文版【优秀】.pdf

CRUSHINGANDGRINDING2002CONFERENCEPAGE1CRUSHINGANDGRINDING2002CONFERENCENEWDEVELOPMENTSANDPRACTICESINLIFTERSANDLINERSINTRODUCTIONTHEMINERALPROCESSINGINDUSTRYISINTHEMIDSTOFAREVOLUTION,AGRINDINGPLANTREVOLUTIONMAJORBREAKTHROUGHSINBOTHMETALLURGICALPERFORMANCEANDOVERALLGRINDINGPLANTAVAILABILITYAREUNDENIABLETHEFULLBENEFITSOFTHESEDEVELOPMENTSARENOTWIDESPREADMETALLURGICALPERFORMANCEISBEINGENHANCEDBYSUPERIORMILLOPERATINGMODELLINGBYTHEDISCRETEELEMENTMETHODWHICH,INCERTAINAPPLICATIONS,ENCOURAGESTHEUSEOFFEWER,SHELLLIFTERROWSWITHHIGHERLIFTERHEIGHTSTHISRESULTSINLARGERANDHEAVIERLINERSOVERALLPLANTAVAILABILITYANDUTILISATIONAREBOTHENHANCEDBYFUNDAMENTALMILLSYSTEMSEQUIPMENTQUALITYANDRELIABILITYACREDITTOMILLMANUFACTURERSANDPLANTMAINTENANCEPERSONNELANDFASTER,SAFER,RELINETIMESUSINGRME’SWORNLINERREMOVAL,NEWLINERPLACEMENTMILLRELININGSYSTEMTHISPAPERDEFINES,ASRMEBELIEVES,THEFINALFRONTIERSOFLARGEGRINDINGMILLRELININGPRACTICESWITHAPARTICULAREMPHASISONTHETEAMEFFORTREQUIREDOFALLINTERESTEDPARTIESMINERALGRINDING–ACOMPLEXGAMEOFFERINGWORTHWHILEPRIZESGRINDINGPLANTDESIGN,CONSTRUCTION,OPERATIONANDMAINTENANCEAREEACHCOMPLEXACTIVITIESWHENEACHISREVIEWEDINDIVIDUALLYWHENCOMBINED,THECOMPLEXITIESMAYSEEMOVERWHELMINGANDSOMEISSUESAREPERHAPSOVERLOOKED,ESPECIALLYDURINGTHEHEAVYWORKLOADOFNEWPLANTDESIGNANDCONSTRUCTIONTHISPAPERNOMINATESALLTHEINVOLVEDPARTIESTHE‘PLAYERS’INASUCCESSFULMILLRELINING‘TEAM’ANDPROVIDESAFOUNDATIONDOCUMENTFORFUTUREDISCUSSIONINTHISAREARMEWILLPROVIDETHISPAPER,ANDSUBSEQUENTUPDATEDVERSIONS,ASAREFERENCESOURCEATBOTHTHEWWWGOMILLSWORLDCOMANDWWWRMEQCOMAUWEBSITESASINANYCOMPLEXGAME,THISTEAMOFPLAYERSCOMBINETHEIRINDIVIDUALSKILLSTOACHIEVEASUCCESSFULOUTCOME,IEAPODIUMFINISHINTHE‘WORLDSERIES,ANNUALMILLUTILISATIONCONTEST’THEPLAYERSINASUCCESSFULMILLRELININGTEAMFORAGREENFIELDSGRINDINGPLANTPROJECT,THETEAMPLAYERSARE1PROJECTOWNER2PROJECTMANAGER3MILLSUPPLIER4LINERSUPPLIERCRUSHINGANDGRINDING2002CONFERENCEPAGE25PLANTOPERATINGPERSONNEL6PLANTMAINTENANCEPERSONNEL7MILLRELININGCREW8MILLRELININGSYSTEMSUPPLIERRMEFORANEXISTINGGRINDINGPLANTOPERATION,THEPROJECTMANAGERHASNOFURTHERINFLUENCE,REDUCINGTHEFIELDTOSEVEN7PLAYERSTHEPROJECTOWNERSHOULDHOWEVER,NOMINATEAREMAININGPLAYER,PROBABLYTHEPLANTOPERATOR,TOREVIEWTHEPROJECTMANAGER’SAREASOFRESPONSIBILITYTHECONTRIBUTIONOFEACHPLAYERTOTHETEAM’SOVERALLSUCCESSISNOWDISCUSSEDINDETAIL1PROJECTOWNER11THINKINGBEFOREBUILDINGTHEPROJECTOWNER,THEULTIMATEBENEFICIARYOFWORLDCLASSGRINDINGPLANTPERFORMANCE,WILLFACEMANYDECISIONSREGARDINGEXPENDITUREOFPROJECTCAPITALONLYTHEOWNER,THROUGHTHOSEDECISIONS,POSSESSESTHEPOWERTOINFLUENCEALLOTHERPLAYERSSOMEDECISIONSWILLHAVEAPOSITIVEINFLUENCEONTHEFINALOUTCOMESOMEDECISIONSWILLHAVEANEGATIVEEFFECTTHOSEDECISIONSWILLDETERMINEPLANTPERFORMANCE,AVAILABILITY,UTILISATIONANDSAFETY,SOMETIMESFORTHEENTIREDURATIONOFTHEGRINDINGPLANT’SLIFEINOTHERWORDS,POORDECISIONSMAYEMBODYIRREVERSIBLEANDNEGATIVEEFFECTSONOPERATIONALANDMAINTENANCEOUTCOMESINCLUDINGMILLRELININGTHEOWNERMUSTFIRSTCONSIDERTHEIMPORTANCEOFGRINDINGPLANTPERFORMANCEANDAVAILABILITYTOTHEOVERALLPROJECTAFEWOPERATIONS,NOTABLYALUMINAREFINERIES,HAVEBEENKNOWNTOINSTALLA‘SPARE’MILLANDARETHEREFORENOTEXPOSEDTOTHEUSUALGRINDINGMILLAVAILABILITYDEMANDSTOMAINTAINTHROUGHPUTUSUALLY,MILLAVAILABILITYISCRITICALANDESPECIALLYSOINAMODERNGRINDINGPLANTEQUIPPEDWITHASINGLE,LARGE,PRIMARYMILLIF,AFTERCONSIDERATION,GRINDINGPLANTPERFORMANCEANDAVAILABILITYAREDEEMEDIMPORTANT,THEROLESOFEACHOTHERPLAYERMUSTBECONSIDEREDANDTHEIRPOTENTIALSOPTIMISEDTHEOWNERWILLBEREQUIREDTOWORKESPECIALLYCLOSELYWITHTHEPERHAPSCONSERVATIVEPROJECTMANAGERBOTHOWNERANDPROJECTMANAGERSHOULDMAKETHEMSELVESAWAREOFALLRECENTDEVELOPMENTSINTHISAREA,EGAMOVETOWARDSIGNIFICANTLYLARGERMILLLINERSMADEPOSSIBLE,INPART,BYRME’SWORNLINERREMOVAL,NEWLINERPLACEMENTMILLRELININGSYSTEMSIMPLYTHINKINGABOUTRELININGISSUESATTHEBEGINNINGOFTHEPROJECTWILLREVEALMANYOPPORTUNITIESGIVENALITTLECONSIDERATION,THEFULLPOTENTIALOFALLOTHERTEAMPLAYERSWILLBERELEASEDATEACHANDEVERYRELINEANDFORTHELIFEOFTHEPLANTANEXTRA13ANNUALPLANTUTILISATION,WONTHROUGHEFFICIENTMILLRELINING,ISTHEPRIZEONOFFERFORSUCHTHOUGHTATTHEDESIGNSTAGECRUSHINGANDGRINDING2002CONFERENCEPAGE312ANEXAMPLEOFTHECONSEQUENCESOF‘NOTTHINKING’ATTHEPLANTDESIGNSTAGETHEOWNEROFPROJECTXYZDOESNOTCONSIDERMILLRELININGISSUESANDDOESNOTBRIEFTHEPROJECTMANAGERREGARDINGANYPARTICULARWISHESINTHISAREATHEXYZPROJECTMANAGERALSODOESNOTCONSIDERMILLRELININGISSUESANDSEEKSGRINDINGMILLSUPPLYVIAASPECIFICATIONWHICHDOESNOTCONTAINMILLRELININGREQUIREMENTSTHEMILLSUPPLIERSALLENGAGEDINACOMPETITIVEBUSINESSSEEKTHELOWESTINITIALCOSTSOLUTIONINORDERTOWINTHEMILLSUPPLYCONTRACTFORSOMESUPPLIERS,THEIRSOLUTIONINCLUDESPLACINGTHEMILLMOTORALONGSIDETHEMILLSHELLTHISARRANGEMENTISVISUALLYCOMPACTANDAPPEALING,PROMISINGASMALLERPLANTBUILDINGANDSIGNIFICANTCOSTSAVINGSTHEPROJECTMANAGERAWARDSTHESUPPLYCONTRACTTOAMILLMANUFACTUREROFFERINGTHISCOMPACTARRANGEMENTANDDESIGNSTHEGRINDINGPLANTTOSUITANOTHERPLANTREQUIREMENTISATHROUGHPLANTAPERTUREFORLIFTINGEQUIPMENTFROMTHEGROUNDFLOORTOOTHERPLANTLEVELSTHISLIFTINGWELLISPLACEDNEXTTOTHEMILL,DENYINGTHEMILLRELININGCREWACCESSTOTHENONMOTORSIDEOFTHEMILLPLEASEREFERTOFIGURE11PLA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