粉体研磨和分级设备的进展

国际粉体研磨和分级设备的进展DevelopmentofComminutionEquipmentforPowderProductionNewMillsRollermillsStirredmediamillsVibrationmillsCentrifugalmillsJetmillsOthersRollerMillsHighpressurerollermill(HPRM)(Germany)Poittemill(POITTEMILLINGENIERIE,France)HOROMILL(FCBresearchcentre,France)PrincipleofHigh-pressureRollerMillReductioninBallMill(BM)Grind-abilityasaFunctionofSpecificPressureoftheHPRMDependenceofspecificenergyinputonthefinenessofroundproductsobtainedbystirredmediamillswithorwithouttheHPRMAnImprovedVersionoftheHPRMWithSplitterSettlingStructureofPoittemillConfigurationWithOneIdleRollerWithaCylindericalShellintheHOROMILLGrindingEfficienciesoftheHOROMILLGrindingVariousMaterialsStirredMediaMillsSalaAgitatedMill(SAM)(Svedala,Sweden)IsaMill(Netzsch,Germany)ALPINEATRMill(HosakawaAlpine,Germany)ANI-MetprotechStirredVerticalMill(Metprotech,Australia)MaxxMill(Eirich,Germany)KDTowerMill(Japan)SomeaspectsondevelopmentsofstirredmediamillsSAMMillsinWetandDryModesALPINEATRMillforDryGrindingANI-MetprotechStirredVerticalMillGeneralDesignofMaxxMillKD-1towermillandthemodifiedversionsKD-2andKD-3ExperimentalresultsobtainedbythreeKDmillsfordrymillingofcalciteSomeaspectsondevelopmentsofstirredmediamillsUseofsmallestbeadsNewdesignforseparationofbeadsAutogenousgrindingApplicationofadditionalforcefieldsUseofsmallestbeadsOnecharacteristicofstirredbeadmillsistousethesmallerbeads(0.1mm)asgrindingmediatoeffectivelyutilisethetransmittedgrindingenergyinsizereductionathighspeeds.NewdesignforseparationofgrindingmediafromgroundproductDCP-Superflow(DraiswerkeGmbH,Germany,nowBuhler)ZR120(BuhlerAG,Switzerland)ConstructionofDCP-SuperflowstirredbeadmillPrincipleofZR120centrifugalbeadmillAutogenousgrindinginSBMUltrafinegrindingoflimestoneApplicationofadditionalforcefieldsCentrifugationVibrationVibrationMillsEccentricvibratingmill(ESM)(Germany)VibroKineticEnergy(VKE)Mill(MicroGrindingSystems,USA)Constructionofeccentricvibrationmill(ESM)ComparsionofESMandRSMVibroKineticEnergy(VKE)MillCentrifugalMillsZRMcentrifugaltubemill(Germany)Aachencentrifugalmill(Germany)ZRM220-35CentrifugalMillComparisonParticlesizedistributionsasafunctionofspecificenergyinputAachencentrifugalballmillJetmillsOpposedjetmill(particletoparticle)Impactjetmill(intargets)Spiraljetmill(highvelocitydifferences)Others-Hicommill(HicomInternational,WarmanGroup,Australia)-MikroLGMMill(HosokawaMicronPowdersystem,USA)-Aconecrusherwithhigh-pressurewaterjet(Germany)HicommillinindustrialapplicationsSimplifiedprocessflowsheetincludingHicommillatAlexkorLtd.,SouthAfricaSpecificenergyforgrindingcalcitebelow100µmtodifferentsizesMikro-LGM(Ultrafineimpactdryingmill)Conecrusherwithhigh-pressurewaterjet(coalgrinding)Productsize-energyinputrelationsfromvariousmillsinthecaseofmillingCaCO3MechanicalProductionofNanoparticlesAl2O3CaCO3SiO2etcGrindingresults(Al2O3)asafunctionofspecificenergyfordifferentgrindingbeadsProductionofnano-particlesbymillingTEMphotographofgroundproductsofcalciteImprovedandNewClassifiersAirclassifiersCentrifugesAirClassifiersTurboplexwithnewwheeldesign(HosokawaAlpine,Germany)V-andVSK-separators(KHD,Germany)Inprosysairclassifier(SINTEF,Norway)Newclassifyingwheel500ATP-NGforTurboplexairclassifierPressurelossesasafunctionoftheproductfineness–comparisonofthenewclassifyingwheelandastandardclassifyingwheelSimulatedairflowinVSKseparatorSchematicdrawingoftheInprosysairclassifierCentrifugesDisc-stacknozzlecentrifuge(AlfaLaval,Sweden)Centrisizer(KHD,Germany)TUClausthalcentrifuge(Germany)Counter-flowRotatingHydro-classifier(TUKarlsruhe,Germany)Adisc-stacknozzlecentrifugeClassificationperformanceplotsofthedisccentrifugeforbothkaolinclayandcalciteundervariousconditionsResultsforonestageclassificationbythedisccentrifugeAnimprovedversionofthedecantercentrifuge“Centrisizer”SketchoftheTUClausthalcentrifugeCentrifugalclassificationofthestarchComparisonwithvariousclassifiersCounter-flowrotatinghydro-classifier