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PolysiusAcompanyofThyssenKruppTechnologiestkPolysiusMinerals.EngineeringmadebyPolysius.2PolysiusMineralsTechnology.Presentallaroundtheworld.Asoneoftheworld’sleadingcompaniesintheplantengi-neeringfield,Polysiushasthecomprehensiveknow-howthatisneededinordertosupplythemining,metallurgical,refracto-ries,limeandchemicalindus-trieswithinnovativebuttriedandtestedprocesses,plantsandsystemconfigurations.Againandagain,Polysiusproducesconvincingsolutionsforpyroprocessingandgrind-ingapplications,provingitselfareliablepartnerinallregionsoftheworld.Thehighavailability,lowenergyrequirementandgoodenvironmentalcompatibilityofthelargenumberofplantsthatwehaveinstalledspeakforthemselves.3NickeloreDryingsystems:rotarydryer,shaft-typeflashdryerCalciningsystems:rotarykiln,POLCAL®IronoreTreatmentplants:SAGmills,ballmills,POLYCOM®Concentrate-grindingplants:ballmills,POLYCOM®Additivegrindingplants:ballmills,rollermillsGold/copperoreDrygrindingplants:SAGmills,ballmills,DOUBLEROTATORs®Concentrate-grindingplants:SAGmills,ballmills,POLYCOM®Heapleachingplants:POLYCOM®DiamondoreGrindingplants:POLYCOM®,scrubbersLime/LimestoneGrindingplants:ballmills,rollermills,POLYCOM®Calciningsystems:rotarykilns,POLCAL®,shaftkiln,shaftpreheater,shaftcoolerGrindingplantsforfluegasdesulphurisation:ballmills,rollermillsCoalGrindingplants:ballmills,rollermillsInjectionsystems:dispensers,POLOP®SteelInjectionsystems:dispensers,POLOP®Processengineeringforthepreparationofchromeore,oilshale,magnesite,dolomite,soda,phosphateore,bauxiteore,anhydrite,gypsum,vanadiumore,steelplantdusts...Dryers:rotarydryer,shaft-typeflashdryerPreheaters:cyclonepreheater,shaftpreheaterKilns:rotarykilns,POLCAL®,shaftkilns,multihearthfurnacesCoolers:cyclonecooler,shaftcooler,rotarycooler,fluidisedbedcoolerOurproductrange:Diamond,gold,copper,steel,oil...4GrindingtechnologyConvincingconcepts.Grindingisoneofthemostenergy-intensiveproductionstagesandthereforehasasubstantialenergy-savingpotential.Themaindemandsmadeongrindingplantsarelowoperatingcostsandhighavailability,evenwhengrindingextremelyabrasivematerials.5GrindingplantsfromPolysiushaveestablishedthemselvesworldwideinthemineralsindustrybecauseoftheirconvincingconcept,robustconstructionandoutstandingavailability.Theverybroadrangeofdifferentmilltypesofferstherightsystemforeveryapplication.Preparationplantfor108,000tonnesofcopperoreperdayinPeru.TheprimaryoregrindingstageconsistsoffourPOLYCOM®high-pressuregrindingrolls,whilefourwetprocessballmillsperformthefinalgrinding.67CopperoregrindinginPeru:TheprimaryoregrindingisperformedbyfourPOLYCOM®high-pressuregrindingrolls,eachequippedwith2,500kWdrivesandrollsof2.4metrediameter(Toppictures),whilethefinalgrindingtakesplaceinfourwetprocessballmillspoweredby12MWringmotordrives(Largepicture).DOUBLEROTATOR®comminutinggoldore(252tphthroughput)intheUSA.AutogenousmillsbreakingdiamondoreinAngola(throughput:400tpheach).MountingthebearingshoesofalargeSAGmillwithcircumferen-tialbearingassembly.BallmillgrindinglimestoneforfluegasdesulphurisationatapowerstationinKorea.ThelargestSAG-millwithcircumferentialbearingassembly(10.4mdiameter,11,000kWdrivepower)andballmillforgrinding1350tphofgold/copperoreinAustralia.Rollermillforlimestonegrinding.HighpressurecomminutionTheeconomicandgentleprocess-ingsolution.60%ofthehigh-pressuregrindingrollsinstalledinthemineralsindustryarefromPolysius:thePOLYCOM®operatesconvincinglyallaroundtheworld,comminutingcopperore,goldore,ironore,diamondore,platinumore,coal,granulatedblastfurnaceslag,limestone,cementclinkerandothermineralrawmaterials.Thistypeofmillensureslowoperatingexpenses(incompari-sontoothersystems,boththepowerconsumptionandthecostsforwearpartsaresignificantlylower),highthroughputrates(ahigh-pressuregrindingrollcanreplaceseveralreductioncrushers)andmetallurgicaladvantagesinthedownstreamprocessstages.Becauseoftheshortmaterialdwelltimeinthemill,themachinesettingscanbequicklyaltered,makingtheprocesseasytocontrolandpermittingrapidcompensa-tionforfluctuationsintheproper-tiesofthefeedore.RollermillsRollermillsintegratethreeprocessstagesintoasingleunit:drying,grindingandseparating.Theirrangeofapplicationsincludeslimestone,additiveandcoalgrind-ing.AutogenousmillsandballmillsforwetanddrygrindingPolysiusbuildsautogenous/semi-autogenousandballmillswithcircumferentialbearingassemblyandgirthgearorringmotordrive.Forspecialapplica-tions,PolysiusoffersDOUBLEROTATOR®andAEROFALLmills.TheCOMBIFLEX®systemisaparticularlyeconomicaldrivecon-cept:Thedriveunitisintegratedintothehousingforgirthgearandslidingshoebearing.HighdrivepowerrequirementsaremetbyadoubleCOMBIFLEX®systemorringmotor.8Pyroprocessing.Successthroughexperience.MachinesandplantsfromPolysiusensureconsistentproductquality,minimumpowerrequirementduetooptimumheatrecuperation,outstandingavailabilityandgoodresourceutilisation.Polysiussystematicallyconsoli-datesprocessandplantknow-howtocreateinnovativecon-ceptsforthethermalprocess-ingofaverybroadrangeofmaterials,offeringoptimalcus-tomisedsolutionsfordrying,preheating,calcining,reduc-tion,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