Mikro ACM™ Air Classifying Mill - Hosokawa Micron Powder ...

The Mikro ACM® Air Classifying Mill was invented by the Pulverizing Machinery Company in 1962 and is considered one of the most versatile milling systems ... TheMikroACM®AirClassifyingMillgrindsawiderangeofmaterialsdowntoD97<20µm. MikroACMsystemsareavailableforchemical,food,pharmaceuticalandmineralapplications. Hosokawa’sACM’sareavailablefrom1HPupto600HP,capableofmilling20tonsanhour. Withaninternaldynamicclassifier,theACMproducesaverynarrowparticlesizedistribution. MikroACM®AirClassifyingMill EasyAccessMikroACM®AirClassifyingMillwith75HP MikroACM®AirClassifyingMill TheMikroACM®AirClassifyingMillisanairsweptmechanicalimpactmilldesignedtogrindawiderangeofmaterialsdowntoD97<20µm.Itsdurability,reliability,andprecisionarewhatmakeitoneofthemostpopularindustrialworkhorsesonthemarket. GrindsandClassifiesdowntoD97<20µm DesignedforChemical,Food,PharmaceuticalandMineralmaterials Laboratory(1HP)toProduction(600HP)modelsareavailable Processingcapacitiesrangefrom0.5lb/hrtoseveraltonsperhour Excellenttopsizecontrolwhileproducinganarrowparticlesizedistributions PSRPressureshockresistantmodelsavailable Canoperatewithheatedairforflashdrying Availableinsteel,stainlesssteel,specialtyalloyswithandtitaniumcomponents WearprotectionoptionsincludeARsteel,stellite,tungstencarbide,ceramicsandwearprotectivecoatings ContactUs DownloadBrochure Description Models Configuration Materials Operation&Design TheMikroACM®AirClassifyingMillwasinventedbythePulverizingMachineryCompanyin1962andisconsideredoneofthemostversatilemillingsystemsforfinesizereductionintheworld.Theseunitswhilebeingcapableofproducingfine,mediumandcoarsegrindsforawidevarietyofmaterialsforFood,Pharmaceutical,ChemicalandMineralindustries.Thebasicdesignofthesemillsistheimpactsizereductionthatiscoupledwithaninternaldynamicclassifierwhichcontrolstheoutlet(product)particlesizeviarecirculatingthecoarseparticlesbackintothegrindingzone.TherearesevenmainfactorswhichdetermineparticlesizedistributionfortheMikroACM®AirClassifyingMill.Whenvaried,therotortypeandspeedcombinedwiththelinerandhammercountaffectstheproductionoffines.Theseparatortypeandspeedaffectsthetopsizeoftheproduct.Andlastly,theairflowgovernsthethroughputaswellastopsizeandfinesgeneration.WiththeendlessavailableoptionsamachinecanbeconfiguredtoprocessjustaboutanymaterialthatisbelowMOH’shardnessof5. TheMikroACM®AirClassifyingMillisavailablein15differentmodelsizeswithmanyvariationsandoptionstoenhanceperformanceinawiderangeofapplications. MikroACMModel RotorPower(HP) ClassifierPower(HP) Max.RotorSpeed(RPM) Approx.AirFlow(ft3/min) ScaleUpFactor 1ACM 1 1 22,000 60 NA 2ACM 3 1 10,500 200 0.3 10ACM 10 1.5 7,000 1,060 1 20ACM 20 2 7,000 1,060 2 30ACM 30 4 4,600 1,500 3 40ACM 40 7.5 4,600 2,000 4 75ACM 75 10 3,000 3,750 7.5 100ACM 100 15 3,000 5,000 10 ACM125 125 20 2,100 6,360 12.5 ACM150 150 30 2,100 7,500 15 200ACM 200 25 2,000 10,000 20 250ACM 250 40 2,000 12,500 25 300ACM 300 50 2,000 15,000 30 400ACM 400 100 1,500 20,000 40 600ACM 600 150 1,500 30,000 60 OptionalDesigns&Configuration CoaxialDrive IndependentDrive EasyAccess/EasyClean HighSpeedRotor PressureShickResistent E-ACMCarbonBlackMill SuperfireConfiguration HighTemperatureOperation Dataprovidedinthischartisaguidelineonlyanddoesnotrepresentaperformanceguarantee. TheMikroACM®AirClassifyingMillisdesignedtoproducefinermaterialswithsharperparticlesizedistributionsthanmostotherimpactmillingtechnologies.Incertainapplications,amedianparticlesizeaslowas5micronscanbeachieved. TheMikroACM®AirClassifyingMillisthemaincomponentofthesizereductionsystemhowever,additionalancillarycomponentsarerequiredforafullyfunctionalsystem. Afeederisrequiredtoaccuratelydispenseproductintothemillingsystem. Aproductcollectorisrequiredtoseparatetheproductfromthegasstreamandcollectthematerial. Airlocksareusedforfeedingthesystem,containingsystempressureandproductdischarging. Afanisrequiredtogeneratetheairflowtoconvey,millandclassifytheproduct. Adequatelysizedductingisrequiredtoconnectthesystemcomponentsandcontainandconveytheproduct. Instrumentationandvalvesarerequiredtosenseandregulatethevariousoperatingparametersofthesystem. Acontrolsystemisrequiredtooperate,monitorandcontroltheoutputofthesystem. ONCETHROUGHSYSTEM TheMikroACM®-AirClassifyingMillOnceThroughSystemisacommonconfigurationsuitableformostsizereductionapplications.Thiseconomicalconfigurationrequireslessancillarycomponentsthanmorecomplexsystemsandiseasytooperateandmaintain. CLOSEDLOOPSYSTEM TheMikroACM®-AirClassifyingMillcanalsobeconfiguredinaClosedLoopSystemwhichisspecificallydesignedtorecycleinertgasorconditionedairandreduceoverallsystemenergyrequirements. MILLINGSYSTEMWITHCYCLONE AcyclonecanbeintegratedintomostMikroACM®-AirClassifyingMillsystemsforproductcollectiontoreducedowntimeforcleaningthedustcollector. EXPLOSIONRESISTANTSYSTEMWITHSECONDARYCLASSIFICATION Forpotentiallyexplosivepowders,equipmentandductingaredesignedtowithstandamaximumpressureupto10bar(g)andthesysteminlet&outletareisolatedforfullpressurecontainment. EXPLOSIONRESISTANTSYSTEMWITHSECONDARYCLASSIFICATION Forpotentiallyexplosivepowders,equipmentandductingaredesignedtowithstandamaximumpressureupto10bar(g)andthesysteminlet&outletareisolatedforfullpressurecontainment. TheMikroACM®-AirClassifyingMillsystemisavailableinawiderangeofsizes,materialsofconstruction,finishes,pressure&vacuumdesigns,systemconfigurationsandcontrolschemes. DuetotheMikroACM®-AirClassifyingMill’sairtomaterialratiorequirement,heatsensitivematerialscanbehandledwithoutproductdegradation.Whenmillinghygroscopicmaterials,conditionedinletaircanbeusedtoreducemoistureinthesystem.Inhightemperaturedryingapplications,thebearinghousingcanbeinsulatedandairpurgedtoprotectthebearings.Themillcanalsooperatewithchilledairforheatsensitivematerialstopreventbuildupandformoreefficientgrinding. Ifyourapplicationrequiresfrequentproductchangeoverwithcleaninginbetween,youmaywanttoconsiderourMikroACM-EasyAccessAirClassifyingMilldesign.Thismillincorporatesseveraluniquefeaturesthatallowittobequicklyandeasilydisassembledandcleaned. Material FeedMaterial MillMaterial FOODINGREDIENTS CaneSugar Nominal20Mesh 96%<200Mesh(10x) SoyaFlake 1/4" 98%<80Mesh MilkCrumb Nominal20Mesh 99%<400Mesh WholeKernelCorn Nominal3/8" 99%<30Mesh CocoaPressCake 65%<100Mesh 99%<200Mesh XanthamGum Nominal1/8" 97%<44µm IronBasedFoodAdditive 1/2" 90%<355µm CHEMICALMATERIALS BariumSulfate Nominal60µm 97%<14µm CarbonBlack 900PPM>44µm 10–25PPM>44µm SodiumBicarbonate 200µm 50%<10µm PhenolicResin 1/2" 97%<200Mesh ZincSterate 1/8"Flakes 97%<38µm PotassiumPhosphate 240µm 90%<48µm SodaAsh 100µm 50%<15µm PowderCoatings 1/4"Chips 50%<25µm ThermoPlasticPolymer 2–5mm 90%<1070µm MINERALPRODUCTS HydrousKaolin Nominal325Mesh 6.5Hegman Talc Nominal80Mesh 50%<7µm HydratedLime Nominal80Mesh 50%<7µm SoftLimestone 1/4" 99%<25µm Trona 200µm 50%<10µm DiatomaceousEarth 1mm 50%<12µm MagnesiumOxide Nominal40Mesh 99%<325Mesh PETCoke 100µm 50%<10µm Enzymes(Cryogenic) 150µm 90%<110µm LithiumCarbonate 100µm 50%<4µm Food AnimalFeed AscorbicAcid BabyFormula BakeryProducts Barley BerrySeeds CalciumPhosphate Carrageen CellulosePowder ChocolateCrumb Cocoa CoffeeBeans CornStarch DriedFruits Fiber FishMeal Flavorings FoodSeasonings Gelatin Herbs Hulls Lactose Legumes MalicAcid MilkPowders MustardSeed Oats Pasta Peas Pectin Pigments Potato PotatoStarch PowderedCurd ProteinShifting Rice&RiceBran Salt Seaweed SesameSeed SodiumAcidPyrophosphate SoyProtein Soya Spices Sugar SugarSubstitutes TeaLeaves ThickeningAgents Tri-CalciumCitrate Tri-Calcium Phosphate Wheat Chemical Acids ActivatedCarbon Agrochemicals AluminumHydroxide CarbonBlack Cellulose CelluloseandCelluloid CeramicPigments ChemicallyDerivedFibers ChemicalSalts ColorMixtures ColorSuspensions Detergents Dyestuff E-PVC Fertilizer FlueGasDesulfurization LithiumCarbonate&Compounds MagnesiumHydroxide NaturalRubber Phosphates Pigments Plastics Polyurethane PowderCoatings PVC Silica SyntheticResin Wax Mineral AluminumSilicate CalciumCarbonate Catalysts Feldspar Graphite GroundCalcium Carbonate/Limestone Gypsum Kaolin MineralPowders Refractories TalcCompaction TalcMilling ZincOxide Pharmaceutical ActivePharmaceuticalIngredients Amoxicillin Cellulose DentalCompounds Excipients Hormones Inhalants Lactose Nutraceutical Proteins Vitamins OPERATION TheMikroACM®-AirClassifyingMillrequiresairorgasfortheconveying,sizereductionandairclassificationoftheproductbeingprocessed.AirorgasisintroducedtotheMikroACM®-AirClassifyingMillviathemainairinletandtheproductinlet.Asmuchas30%ofthetotalairvolumecanbeintroducedattheproductinletdependingupontheapplication.Feedmaterialispneumaticallyconveyedundervacuumormechanicallyconveyedbyanauger,intothefeedinletofthemillalongwiththeprocessair.Ideally,materialisfedataconstantrateviaavolumetricorgravimetricfeedingdevice. Afterpassingthroughthefeedinlet,materialentersthegrindingzone.Atthispoint,materialcomesincontactwiththefaceoftherotatinghammers,whereimpacttakesplaceandthematerialisfracturedintosmallerparticles.Situatedaroundtheperimeterofthegrindingchamberisa“multipledeflectorliner”.Thiscomponentassistsinslowingtheperipheralvelocityoftheproductanddeflectingitbackintothehammerpathformoreefficientimpactandsizereduction. Theproductisthenconveyedupwardsbytheairstreamthroughashroudandbaffleassemblythatchangesthedirectionoftheproduct/airmixturewhiledirectingittotheclassificationzone.Theshroudandbaffleassemblyalsoprovidesaseparationofthemillinternalareaintotwozones;agrindingzoneandaclassifyingzone. Oncetheproductenterstheclassificationzone,theparticlesarepresentedtotherotatingclassifierwheel,wherebaseduponsizeanddensity,theparticleseitherpassthroughtheclassifieroroversizeparticlesarerejectedandflowbacktothegrindingzoneforadditionalsizereduction.Theprocessedproduct/airmixturethenexitsthroughthemilloutlet. Therearetwomainparametersthatareusedtocontrolandchangeparticlecutpointormaximumparticlesize;airvolumethroughthemillandrotationalspeedoftheclassifier.Theairflowthroughthemillgeneratesadragforcetoconveytheparticlestotheclassifierandtherotationalspeedoftheclassifiergeneratesacentrifugalforcethatrejectstheparticlesawayfromtheclassifier.Whenthesetwoforcesareequalizedforagivenparticlemass,thatparticlehasanequalprobabilityofbeingacceptedorrejectedatthefaceoftheclassifierwheel.Baseduponvaryingtheseopposingforceseitherthroughachangeinairvolume,orachangeinclassifierspeed,theparticletopsizecutpointcanbecontrolled. GRINDINGCHAMBER ThegrindingchamberoftheACMhousesboththecomponentsoftheclassifyingandgrindingzones.Theyincludetheimpactrotorandhammers,thelinerassembly,theshroudandbaffleassemblyandtheclassifierwheel.Thegrindingchambercanbedesignedtooperateto10bar(g)overpressureforexplosivematerials. ROTOR&HAMMEROPTIONS Rotorsarenormallysuppliedassinglediscs;howeveroptionsincludereduceddiameterrotorsforusewithheavydutyliners,androtordiscswithreplaceablewearplatesforabrasiveapplications.Hammersareboltedtotherotordiscandcanbeeasilyremovedandreplaced.Optionsinclude: BarHammers—forfinesizereductionandmaximumimpact. Pins—forproducingcoarseparticlesizedistributionsandtominimizethegenerationoffines. J-StyleHammers—forsizereductionoffibrousmaterials. LINER Alinerislocatedatthegrindingchamberwall.Therearetwobasictypesofliners;themultipledeflector(MD)linerisforfinesizereductionandthesmoothlinerisforcoarsesizereductionandtominimizethegenerationoffines.Thepurposeofthelineristoprovideformoreefficientsizereductionbyslowingtheperipheralspeedoftheparticlesandtodeflectthembackintotheimpacthammerpath. SHROUD&BAFFLEASSEMBLY Theshroudandbaffleassemblyservestwopurposes;oneistoseparatetheinternalpartsofthemillintoagrindingzoneandaclassificationzone,theotheristoactasaflowstraightenerandprovidefortherecirculationoftheair/materialmixturetotheclassifierandthenbacktothegrindingzone. DYNAMICCLASSIFIER Theclassifierisadeviceusedtoseparateparticlesintofineandcoarsefractions.Theselectionoftheclassifierwheeltypeisapplicationdependent.Classifierscanbeprovidedinshorttolongconfigurationswithvaryingnumbersofbladesandbladetype.Basicdesignsincluderadialorcantedbladeconfigurations. WEARPROTECTION Whengrindingabrasivematerials,pharmaceuticalproductsorfoodingredients,Hosokawaoffersoptionstoprotectyourmillfromprematurewearandtomaintainthepurityofproduct.Internalsurfacesandcontactparts,includingtheliner,grindingelements,classifierandchambercanbeconstructedofmildsteel,stainlesssteel,andceramicorcoatedwithspecialalloys,liketungstencarbide. CONTROLS MostMikroACM®-AirClassifyingMillsystemsuseanadvancedPLCandanOperatorInterfaceTerminal(OIT)tomonitorandcontrolthesystemoperation.ThePLCallowsvariousoperatingparameterstobesetbyusingPIDloops.ThePIDSetPointscanbeenteredontheOITandchangedwhileprocessingyourmaterialtooptimizethemillingprocess.Anautomaticstart/stopsequenceisprogrammedtoinsureconsistent,repeatableresults,freefromoperatorerror. Thecontrolcabinetsarecompletelywiredandcontainallnecessarycomponentstoeffectivelykeepyoursystemmakingaqualityproduct.Equipmentupstreamanddownstreamofthemillisusuallyintegratedintothecontrolsystem. SpeedControl—TheRotorandClassifiercaneachbecontrolledindependentlyatspecifiedspeeds,insuringoptimizedmillingandconsistentparticlesize. AirFlowControl—Aconstantairflowrateisessentialformaintainingproperparticlesize;therefore,theairflowiscontrolledindependently. FeedControl—Thespeedofthefeedmeteringdevicevariesasafunctionoftherotorand/orclassifierpowersothesystemremainsstableandoperationalatthemaximumpossiblethroughput. TemperatureControl—Themill,inletoroutlettemperaturecanbemonitoredandcontrolledtoheatorcoolthematerialasitisprocessed. Description TheMikroACM®AirClassifyingMillwasinventedbythePulverizingMachineryCompanyin1962andisconsideredoneofthemostversatilemillingsystemsforfinesizereductionintheworld.Theseunitswhilebeingcapableofproducingfine,mediumandcoarsegrindsforawidevarietyofmaterialsforFood,Pharmaceutical,ChemicalandMineralindustries.Thebasicdesignofthesemillsistheimpactsizereductionthatiscoupledwithaninternaldynamicclassifierwhichcontrolstheoutlet(product)particlesizeviarecirculatingthecoarseparticlesbackintothegrindingzone.TherearesevenmainfactorswhichdetermineparticlesizedistributionfortheMikroACM®AirClassifyingMill.Whenvaried,therotortypeandspeedcombinedwiththelinerandhammercountaffectstheproductionoffines.Theseparatortypeandspeedaffectsthetopsizeoftheproduct.Andlastly,theairflowgovernsthethroughputaswellastopsizeandfinesgeneration.WiththeendlessavailableoptionsamachinecanbeconfiguredtoprocessjustaboutanymaterialthatisbelowMOH’shardnessof5. Models TheMikroACM®AirClassifyingMillisavailablein15differentmodelsizeswithmanyvariationsandoptionstoenhanceperformanceinawiderangeofapplications. MikroACMModel RotorPower(HP) ClassifierPower(HP) Max.RotorSpeed(RPM) Approx.AirFlow(ft3/min) ScaleUpFactor 1ACM 1 1 22,000 60 NA 2ACM 3 1 10,500 200 0.3 10ACM 10 1.5 7,000 1,060 1 20ACM 20 2 7,000 1,060 2 30ACM 30 4 4,600 1,500 3 40ACM 40 7.5 4,600 2,000 4 75ACM 75 10 3,000 3,750 7.5 100ACM 100 15 3,000 5,000 10 ACM125 125 20 2,100 6,360 12.5 ACM150 150 30 2,100 7,500 15 200ACM 200 25 2,000 10,000 20 250ACM 250 40 2,000 12,500 25 300ACM 300 50 2,000 15,000 30 400ACM 400 100 1,500 20,000 40 600ACM 600 150 1,500 30,000 60 OptionalDesigns&Configuration CoaxialDrive IndependentDrive EasyAccess/EasyClean HighSpeedRotor PressureShickResistent E-ACMCarbonBlackMill SuperfireConfiguration HighTemperatureOperation Dataprovidedinthischartisaguidelineonlyanddoesnotrepresentaperformanceguarantee. Configuration TheMikroACM®AirClassifyingMillisdesignedtoproducefinermaterialswithsharperparticlesizedistributionsthanmostotherimpactmillingtechnologies.Incertainapplications,amedianparticlesizeaslowas5micronscanbeachieved. TheMikroACM®AirClassifyingMillisthemaincomponentofthesizereductionsystemhowever,additionalancillarycomponentsarerequiredforafullyfunctionalsystem. Afeederisrequiredtoaccuratelydispenseproductintothemillingsystem. Aproductcollectorisrequiredtoseparatetheproductfromthegasstreamandcollectthematerial. Airlocksareusedforfeedingthesystem,containingsystempressureandproductdischarging. Afanisrequiredtogeneratetheairflowtoconvey,millandclassifytheproduct. Adequatelysizedductingisrequiredtoconnectthesystemcomponentsandcontainandconveytheproduct. Instrumentationandvalvesarerequiredtosenseandregulatethevariousoperatingparametersofthesystem. Acontrolsystemisrequiredtooperate,monitorandcontroltheoutputofthesystem. ONCETHROUGHSYSTEM TheMikroACM®-AirClassifyingMillOnceThroughSystemisacommonconfigurationsuitableformostsizereductionapplications.Thiseconomicalconfigurationrequireslessancillarycomponentsthanmorecomplexsystemsandiseasytooperateandmaintain. CLOSEDLOOPSYSTEM TheMikroACM®-AirClassifyingMillcanalsobeconfiguredinaClosedLoopSystemwhichisspecificallydesignedtorecycleinertgasorconditionedairandreduceoverallsystemenergyrequirements. MILLINGSYSTEMWITHCYCLONE AcyclonecanbeintegratedintomostMikroACM®-AirClassifyingMillsystemsforproductcollectiontoreducedowntimeforcleaningthedustcollector. EXPLOSIONRESISTANTSYSTEMWITHSECONDARYCLASSIFICATION Forpotentiallyexplosivepowders,equipmentandductingaredesignedtowithstandamaximumpressureupto10bar(g)andthesysteminlet&outletareisolatedforfullpressurecontainment. EXPLOSIONRESISTANTSYSTEMWITHSECONDARYCLASSIFICATION Forpotentiallyexplosivepowders,equipmentandductingaredesignedtowithstandamaximumpressureupto10bar(g)andthesysteminlet&outletareisolatedforfullpressurecontainment. Materials TheMikroACM®-AirClassifyingMillsystemisavailableinawiderangeofsizes,materialsofconstruction,finishes,pressure&vacuumdesigns,systemconfigurationsandcontrolschemes. DuetotheMikroACM®-AirClassifyingMill’sairtomaterialratiorequirement,heatsensitivematerialscanbehandledwithoutproductdegradation.Whenmillinghygroscopicmaterials,conditionedinletaircanbeusedtoreducemoistureinthesystem.Inhightemperaturedryingapplications,thebearinghousingcanbeinsulatedandairpurgedtoprotectthebearings.Themillcanalsooperatewithchilledairforheatsensitivematerialstopreventbuildupandformoreefficientgrinding. Ifyourapplicationrequiresfrequentproductchangeoverwithcleaninginbetween,youmaywanttoconsiderourMikroACM-EasyAccessAirClassifyingMilldesign.Thismillincorporatesseveraluniquefeaturesthatallowittobequicklyandeasilydisassembledandcleaned. Food AnimalFeed AscorbicAcid BabyFormula BakeryProducts Barley BerrySeeds CalciumPhosphate Carrageen CellulosePowder ChocolateCrumb Cocoa CoffeeBeans CornStarch DriedFruits Fiber FishMeal Flavorings FoodSeasonings Gelatin Herbs Hulls Lactose Legumes MalicAcid MilkPowders MustardSeed Oats Pasta Peas Pectin Pigments Potato PotatoStarch PowderedCurd ProteinShifting Rice&RiceBran Salt Seaweed SesameSeed SodiumAcidPyrophosphate SoyProtein Soya Spices Sugar SugarSubstitutes TeaLeaves ThickeningAgents Tri-CalciumCitrate Tri-Calcium Phosphate Wheat Chemical Acids ActivatedCarbon Agrochemicals AluminumHydroxide CarbonBlack Cellulose CelluloseandCelluloid CeramicPigments ChemicallyDerivedFibers ChemicalSalts ColorMixtures ColorSuspensions Detergents Dyestuff E-PVC Fertilizer FlueGasDesulfurization LithiumCarbonate&Compounds MagnesiumHydroxide NaturalRubber Phosphates Pigments Plastics Polyurethane PowderCoatings PVC Silica SyntheticResin Wax Mineral AluminumSilicate CalciumCarbonate Catalysts Feldspar Graphite GroundCalcium Carbonate/Limestone Gypsum Kaolin MineralPowders Refractories TalcCompaction TalcMilling ZincOxide Pharmaceutical ActivePharmaceuticalIngredients Amoxicillin Cellulose DentalCompounds Excipients Hormones Inhalants Lactose Nutraceutical Proteins Vitamins Operation&Design OPERATION TheMikroACM®-AirClassifyingMillrequiresairorgasfortheconveying,sizereductionandairclassificationoftheproductbeingprocessed.AirorgasisintroducedtotheMikroACM®-AirClassifyingMillviathemainairinletandtheproductinlet.Asmuchas30%ofthetotalairvolumecanbeintroducedattheproductinletdependingupontheapplication.Feedmaterialispneumaticallyconveyedundervacuumormechanicallyconveyedbyanauger,intothefeedinletofthemillalongwiththeprocessair.Ideally,materialisfedataconstantrateviaavolumetricorgravimetricfeedingdevice. Afterpassingthroughthefeedinlet,materialentersthegrindingzone.Atthispoint,materialcomesincontactwiththefaceoftherotatinghammers,whereimpacttakesplaceandthematerialisfracturedintosmallerparticles.Situatedaroundtheperimeterofthegrindingchamberisa“multipledeflectorliner”.Thiscomponentassistsinslowingtheperipheralvelocityoftheproductanddeflectingitbackintothehammerpathformoreefficientimpactandsizereduction. Theproductisthenconveyedupwardsbytheairstreamthroughashroudandbaffleassemblythatchangesthedirectionoftheproduct/airmixturewhiledirectingittotheclassificationzone.Theshroudandbaffleassemblyalsoprovidesaseparationofthemillinternalareaintotwozones;agrindingzoneandaclassifyingzone. Oncetheproductenterstheclassificationzone,theparticlesarepresentedtotherotatingclassifierwheel,wherebaseduponsizeanddensity,theparticleseitherpassthroughtheclassifieroroversizeparticlesarerejectedandflowbacktothegrindingzoneforadditionalsizereduction.Theprocessedproduct/airmixturethenexitsthroughthemilloutlet. Therearetwomainparametersthatareusedtocontrolandchangeparticlecutpointormaximumparticlesize;airvolumethroughthemillandrotationalspeedoftheclassifier.Theairflowthroughthemillgeneratesadragforcetoconveytheparticlestotheclassifierandtherotationalspeedoftheclassifiergeneratesacentrifugalforcethatrejectstheparticlesawayfromtheclassifier.Whenthesetwoforcesareequalizedforagivenparticlemass,thatparticlehasanequalprobabilityofbeingacceptedorrejectedatthefaceoftheclassifierwheel.Baseduponvaryingtheseopposingforceseitherthroughachangeinairvolume,orachangeinclassifierspeed,theparticletopsizecutpointcanbecontrolled. GRINDINGCHAMBER ThegrindingchamberoftheACMhousesboththecomponentsoftheclassifyingandgrindingzones.Theyincludetheimpactrotorandhammers,thelinerassembly,theshroudandbaffleassemblyandtheclassifierwheel.Thegrindingchambercanbedesignedtooperateto10bar(g)overpressureforexplosivematerials. ROTOR&HAMMEROPTIONS Rotorsarenormallysuppliedassinglediscs;howeveroptionsincludereduceddiameterrotorsforusewithheavydutyliners,androtordiscswithreplaceablewearplatesforabrasiveapplications.Hammersareboltedtotherotordiscandcanbeeasilyremovedandreplaced.Optionsinclude: BarHammers—forfinesizereductionandmaximumimpact. Pins—forproducingcoarseparticlesizedistributionsandtominimizethegenerationoffines. J-StyleHammers—forsizereductionoffibrousmaterials. LINER Alinerislocatedatthegrindingchamberwall.Therearetwobasictypesofliners;themultipledeflector(MD)linerisforfinesizereductionandthesmoothlinerisforcoarsesizereductionandtominimizethegenerationoffines.Thepurposeofthelineristoprovideformoreefficientsizereductionbyslowingtheperipheralspeedoftheparticlesandtodeflectthembackintotheimpacthammerpath. SHROUD&BAFFLEASSEMBLY Theshroudandbaffleassemblyservestwopurposes;oneistoseparatetheinternalpartsofthemillintoagrindingzoneandaclassificationzone,theotheristoactasaflowstraightenerandprovidefortherecirculationoftheair/materialmixturetotheclassifierandthenbacktothegrindingzone. DYNAMICCLASSIFIER Theclassifierisadeviceusedtoseparateparticlesintofineandcoarsefractions.Theselectionoftheclassifierwheeltypeisapplicationdependent.Classifierscanbeprovidedinshorttolongconfigurationswithvaryingnumbersofbladesandbladetype.Basicdesignsincluderadialorcantedbladeconfigurations. WEARPROTECTION Whengrindingabrasivematerials,pharmaceuticalproductsorfoodingredients,Hosokawaoffersoptionstoprotectyourmillfromprematurewearandtomaintainthepurityofproduct.Internalsurfacesandcontactparts,includingtheliner,grindingelements,classifierandchambercanbeconstructedofmildsteel,stainlesssteel,andceramicorcoatedwithspecialalloys,liketungstencarbide. CONTROLS MostMikroACM®-AirClassifyingMillsystemsuseanadvancedPLCandanOperatorInterfaceTerminal(OIT)tomonitorandcontrolthesystemoperation.ThePLCallowsvariousoperatingparameterstobesetbyusingPIDloops.ThePIDSetPointscanbeenteredontheOITandchangedwhileprocessingyourmaterialtooptimizethemillingprocess.Anautomaticstart/stopsequenceisprogrammedtoinsureconsistent,repeatableresults,freefromoperatorerror. Thecontrolcabinetsarecompletelywiredandcontainallnecessarycomponentstoeffectivelykeepyoursystemmakingaqualityproduct.Equipmentupstreamanddownstreamofthemillisusuallyintegratedintothecontrolsystem. SpeedControl—TheRotorandClassifiercaneachbecontrolledindependentlyatspecifiedspeeds,insuringoptimizedmillingandconsistentparticlesize. AirFlowControl—Aconstantairflowrateisessentialformaintainingproperparticlesize;therefore,theairflowiscontrolledindependently. FeedControl—Thespeedofthefeedmeteringdevicevariesasafunctionoftherotorand/orclassifierpowersothesystemremainsstableandoperationalatthemaximumpossiblethroughput. TemperatureControl—Themill,inletoroutlettemperaturecanbemonitoredandcontrolledtoheatorcoolthematerialasitisprocessed. EasyAccessAirClassifyingMill MillingRiceontheACM CleaningHosokawa'sACM MikroACMAirClassifyingMillDemo Webinar:SizeReductionwithanAirClassifyingMill CarbonBlackGritReductionMill EasyAccessAirClassifyingMill MillingRiceontheACM CleaningHosokawa'sACM MikroACMAirClassifyingMillDemo Webinar:SizeReductionwithanAirClassifyingMill CarbonBlackGritReductionMill INTERESTEDINTHEMIKROACM®AIRCLASSIFYINGMILL? Hosokawa’sapplicationsengineerscananswerallyoursizereductionquestions. ContactUs DownloadBrochure TechnicalArticle HighlySpecializedAirClassifyingMills EasyAccessACM TheEasyAccessACMisdesignedforapplicationsthatrequirefrequentcleaningorproductchangeovers.ThemillperformsthesameastheoriginalACM,howevertheinternalcomponentscanbequicklyremovedandcleaned. E-ACMCarbonBlackMill TheE-ACMisspeciallydesignedforthegritreductionofcarbonblackdownto<1PPM+325MESHwithmodelsupto300HP. PSRAirClassifyingMill Hosokawa’sPressShockResistant(PSR)airclassifyingmillscancontainanoverpressureof10bar(g)intheeventofanexplosion. Super-fineACM Super-fineACM’scanachieveextremelynarrowparticlesizedistributionsonultra-finematerialsdowntoD97<10µminmanyapplications. HosokawaMillingTechnologies HosokawaMicronPowderSystemsoffersawiderangeofequipmentforcoarsegranulationtoultra-finesizereduction. CoarseGranulationtoUltra-fineGrinding LabScaletoLargeProductionModels AirClassificationMills JetMills:OpposedGun,Fluidized&Spiral Hammer&ScreenMills Pin&UniversalMills Pre-Crushers&Granulators Ball&MediaMills AttritionMills Wet&DryGrinding ContactUs FormoreinformationonTheMikroACM®AirClassifyingMill,pleasecompletethefollowingform,orcall(866)584-0950. FirstName* LastName* CompanyName* EmailAddress* Phone PrimaryIndustry* Select Chemical Food Pharmaceutical Mineral Cosmetics Plastics Other Howcanwehelpyou? Joinourmaillist:Hosokawamayoccasionallysendyouemailmessageregardingupcomingevents,webinarsandotherprograms.Wepromiseyouwillbegladyoujoinedourlist.Ifyouarenotcompletelysatisfiedwithwhatwesendyou,feelfreetounsubscribeanytime.Readmoreaboutourprivacycommitmentonourdisclaimerpage. ThankyouforcontactingHosokawaregardingtheMikroACM®AirClassifyingMill. Ifyourrequestisurgent,youcanalsocallHosokawaat(908)273-6360. Designed,Manufactured&AssembledInTheUSA HosokawaMicronPowderSystemsinventedtheMikroACM®-AirClassifyingMillin1962toaddresstherequirementforevenfinersizereduction.SincethenmanydesignenhancementsmaketheMikroACM®-AirClassifyingMillbetterthanever,assuringmaximumperformance,dependabilityanddurability.AllHosokawaequipmentisinspectedandtestedtomeetstrictstandardsbeforeitisshippedtoourcustomers.TheMikroACM®-AirClassifyingMillandSystemcomewithourpledgeofperformanceandguaranteeddependability. HosokawaMicronPowderSystems 10ChathamRoad Summit,NewJersey07901USA P:(908)273-6360 F:(908)273-7432 [email protected] CustomerTermsofSale VendorTermsofSale Disclaimer