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11Welcometo
millMAXPumpTraining
forTaggartChina
2Welcometo
millMAXPumpTrainWorldHeadquarters-Tucson,Arizona3WorldHeadquarters-Tucson,A10OfficesWorldwideSantiagoTucsonViennaJohannesburgSaoPaoloPerthSydneyManilaBeijingShanghai410OfficesWorldwideSantiagoTuProblemsWithConventional
SlurryPumps5ProblemsWithConventional
SConventionalPumpDesign
6ConventionalPumpDesign
6LowPressureHighPressureSlurryNaturalRecirculationPath7LowHighSlurryNaturalRecirculConventionalflowrecirculationbasedonclearanceversuspumpspeedRef:R.J.Stepanoff–CentrifugalandAxialFlowPumps8ConventionalflowrecirculatioSolidsConcentrationisHighest
atImpellerShroudsConcentrationofSlurryisCv=10%ConcentrationatSuctionShroudisCv=24.6%
Reference:UniversityofKentuckyHydraulicsLaboratory9SolidsConcentrationisHighesSolidsareCrushedBetweenImpellerandPumpCase,
ConsumingPowerandProducingWear10SolidsareCrushedBetweenImpEffectsofSuction-SideRecirculation11EffectsofSuction-SideRecircSuction-SideRecirculationWideGapattheFrontandBack12Suction-SideRecirculationWideGrindingofSolidsbetweentheImpeller
andSuctionLinerorThroatBush13GrindingofSolidsbetweentheUnevenPartsReplacementCycles
SuctionSideLinersandImpellerswear2to3timesFasterthanPumpCases.14UnevenPartsReplacementCycleImportanceofCyclonePerformance15ImportanceofCyclonePerformaSummaryofConventionalPumpProblemsSlurryrecirculationonthesuctionsideGrindingofsolidsbetweentheimpellerandsuctionlinerReducedhydraulicefficiency(Er)Reduced(cyclone)performanceovertimeHighpowerconsumptionLowpartswearlifeUnequalmaintenancecyclesUnscheduledshutdownsBallchipsortrampjamstheimpellerfrontorbacksideInabilitytoincreasecapacityusingexistingmotorsanddrives16SummaryofConventionalPumpPmillMAXDesignConcept
Patentedon-linesuctionsidewearclearanceadjustmentHybridSealingSystemmaintainsconstantflowandpressurewithoutincreasingspeedorcausingmotoroverload.
Tightclearanceatwearringpreventssuctionsiderecirculation.
Wideclearanceatexpellingvanespreventslargesolidsfrombeingcrushed.
Narrowclearanceatbacklinerensuresshaftsealingsystemworkswell.17millMAXDesignConceptPatentemillMAXDesign
3x2thru14x12IncorporatesabacklinerSolidvolutecaseWearRingadjustmentthruthecasingWaterflush,centrifugalsealandvacuum-pressuregland18millMAXDesign3x2thru14x121millMAXLargePumpDesign16x14thru28x26IncorporatesasuctionlinerCasingwithsuctionplateWearringadjustmentthruthesuctionlinerWaterflushgland19millMAXLargePumpDesign16x14KrebsmillMAXPump
SolvingtheRecirculationProblemWideclearancesat“A”preventssolidsfrombeingcrushed.Tightclearancesat“B”preventssuction-siderecirculation.Narrowclearancesat“C”ensuresshaftsealingsystemworkswell.AWideBCTightNarrow20KrebsmillMAXPump
SolvingthUrethanecarrierprovidesasealagainsttheintrusionofslurry.Longwearinghighchromeironwearringsealsagainstimpeller.4-6jackingscrewsareusedtoadjustthewearringforwardasthepumpisrunning.Patented“Hybrid”SealingSystem21UrethanecarrierprovidesaseKrebsmillMAXPump
RunningClearanceAdjustmentWideNarrowStepNo.1(AtStartUp)SetBackClearancebyAdjustingBearingAssemblytotheRearStepNo.2(DuringOperation)SetFrontClearancebyAdjustingWearRingTowardImpeller22KrebsmillMAXPump
RunningClWhilethepumpisrunning.Withoutdisconnectingthedrive.Withoutmovingtheimpellerandshaftassembly.Withoutdisturbingguardsorv-beltdrive.SettingClearancesAdjustmentsCanbeDoneThroughouttheServiceLifeoftheParts:23Whilethepumpisrunning.SettImpellerHighRadialVanesClearslargesolids.Preventssolidsfrombeingcrushed.Reducesdifferentialpressureattheeyeoftheimpeller.24ImpellerHighRadialVanesCleaAdjustableWearRingWearringtakesupclearanceattheimpeller.Adjustedduringoperation.Reducessuctionsiderecirculation.Maintainshydraulicperformance.25AdjustableWearRingWearringExternalWearAdjustmentScrews4-6screwsforon-linewearclearanceadjustment.Adjustedwhilethepumpisoperating.Adjustedsixtoeighttimesduringthelifeofthepump.26ExternalWearAdjustmentScrewTypicalWearPatternonWornImpeller27TypicalWearPatternonWornImillMAXPowerFrame
HeavyDutyCastPedestalExternalBearingAssemblyAdjustmentWideBearingCentersHeavyDutyShaftandBearingsDoubleClamps28millMAXPowerFrameHeavyDutymillMAXBearingAssemblyDesign29millMAXBearingAssemblyDesigReverseTaperRollerBearingsIncreasesEffectiveLoadSpantoImproveLife.MainBearingFailureisDuetoOverGreasing.PumpingActionofTaperRollersDischargesGreasetotheOutsidePreventingIngressofSlurryorOverGreasingofBearingCartridge.30ReverseTaperRollerBearingsI3131slurryMAXPump32slurryMAXPump323333HIGHPRESSURE/HIGHHEAD
PUMPS
4x3-17
6x4-2134HIGHPRESSURE/HIGHHEAD
PUMPS
6x4x21HighPressurePump356x4x21HighPressurePump356x4x21HighPressurePump366x4x21HighPressurePump36graveIMAX
37graveIMAX
37gravelMAXPump38gravelMAXPump38SlurryPumpApplication
39SlurryPumpApplication
39BelowBEPOperationMismatchbetweenCriticalFlowAnglesandImpellerVanesAtBEPOperationIncomingAngleofSlurryisMatchedtoImpellerVaneAngleOversizedpumpsmisalignflow40BelowBEPOperationMismatchbeW2U2C2C2
-AbsoluteFlowVelocityU2-PeripheralVelocityofImpellerW2-
RelativeVelocityofFlowBEPOperation41W2U2C2C2-AbsoluteFlowVelociW2U2C2BelowBEPOperation42W2U2C2BelowBEPOperation42OversizedPumpsIncreaseInternalSlurryVelocity43OversizedPumpsIncreaseInterOversizedPumpsIncreaseInternalSlurryVelocity44OversizedPumpsIncreaseInterEffectofSuctionSideWearonPumpingSystemFixedSpeedSystemNewConditionWornCondition45EffectofSuctionSideWearonEffectofSuctionSideWearonPumpingSystemVariableSpeedSystemNewConditionWornCondition46EffectofSuctionSideWearonGlands-ShaftSealOptions47Glands-ShaftSealOptions47WaterFlushGlandGPMFrame
Full
LowCMC 8 0.15MMA 14 0.20MMB 19 0.30MMC 24 0.50MMD 30 1.00MaxGlandWaterRequirement48WaterFlushGlandGPMMaxGlandmillMAXCentrifugalSeal–LowHead
LowSuctionHeadAir/SlurryInterfaceDryGlandCentrifugalSeal49millMAXCentrifugalSeal–LowmillMAXCentrifugalSeal–HighHeadHighSuctionHeadAir/SlurryInterfaceDryGlandCentrifugalSeal50millMAXCentrifugalSeal–HigQuickReleaseDesign
51QuickReleaseDesign
51ImpellerSuctionEndRetainer52ImpellerSuctionEndRetainer5millMAXPumpsInstalledinCoal53millMAXPumpsInstalledinCoaTaggartDesigned/Constructed(orupgraded)CoalPrepPlants
NorthAmerica
PrairieEagleCoal(allpumps)12x10thru4x3
BluestoneIvel(allpumps)12x10thru4x3
ArmstrongCoal(allpumps)12x10thru4x3
BluestoneRedFox(allpumps)12x10thru4x3
PreservatiCoal(allpumps)12x10thru4x3
BlackBeautyCorning(allpumps)12x10thru4x3
NightStarCoal(allpumps)12x10thru4x3HH
WesternCanada
WesternCanadaCoal–Wolverine(allpumps)14x12thru4x3
PineValleyCoal–(allpumps)12x10thru4x3
Russia
SUEK(11pumps)14x12thru4x3
NonTaggartmillMAXInstallations
AllianceResourcesHopkinsCo.Coal(allpumps)14x12thru4x3
AdventMining(allpumps)12x10thru4x3
Peabody/BlackBeauty(6plants)severalsizesineachplant
ElkValleyCoal–FordingRiver–12pumps12x10thru6x4
Mezchuraskaya(60pumpsofvarioussizes)
54TaggartDesigned/Constructed(KrebsmillMAXPump10x8millMAXPumpatBowieResources,Colorado,USA55KrebsmillMAXPump10x8millMAXComments:Customer:Kindill#3HorizonNaturalResourcesExistingGoulds12x10wastoolargeandinefficienttouseexisting200hpmotor.Duetohighpyriticsulfurintheslurry,GlMAX10x8consumed12%lesspowerandlasted~1.5years.Sr.ProcessEngineerwassoimpressedwithmillMAXperformance,wewereawarded7morepumpsfortheirColoradoplant.56Comments:Customer:ExistingGouFeichangxiexie57Feichangxiexie57581Welcometo
millMAXPumpTraining
forTaggartChina
59Welcometo
millMAXPumpTrainWorldHeadquarters-Tucson,Arizona60WorldHeadquarters-Tucson,A10OfficesWorldwideSantiagoTucsonViennaJohannesburgSaoPaoloPerthSydneyManilaBeijingShanghai6110OfficesWorldwideSantiagoTuProblemsWithConventional
SlurryPumps62ProblemsWithConventional
SConventionalPumpDesign
63ConventionalPumpDesign
6LowPressureHighPressureSlurryNaturalRecirculationPath64LowHighSlurryNaturalRecirculConventionalflowrecirculationbasedonclearanceversuspumpspeedRef:R.J.Stepanoff–CentrifugalandAxialFlowPumps65ConventionalflowrecirculatioSolidsConcentrationisHighest
atImpellerShroudsConcentrationofSlurryisCv=10%ConcentrationatSuctionShroudisCv=24.6%
Reference:UniversityofKentuckyHydraulicsLaboratory66SolidsConcentrationisHighesSolidsareCrushedBetweenImpellerandPumpCase,
ConsumingPowerandProducingWear67SolidsareCrushedBetweenImpEffectsofSuction-SideRecirculation68EffectsofSuction-SideRecircSuction-SideRecirculationWideGapattheFrontandBack69Suction-SideRecirculationWideGrindingofSolidsbetweentheImpeller
andSuctionLinerorThroatBush70GrindingofSolidsbetweentheUnevenPartsReplacementCycles
SuctionSideLinersandImpellerswear2to3timesFasterthanPumpCases.71UnevenPartsReplacementCycleImportanceofCyclonePerformance72ImportanceofCyclonePerformaSummaryofConventionalPumpProblemsSlurryrecirculationonthesuctionsideGrindingofsolidsbetweentheimpellerandsuctionlinerReducedhydraulicefficiency(Er)Reduced(cyclone)performanceovertimeHighpowerconsumptionLowpartswearlifeUnequalmaintenancecyclesUnscheduledshutdownsBallchipsortrampjamstheimpellerfrontorbacksideInabilitytoincreasecapacityusingexistingmotorsanddrives73SummaryofConventionalPumpPmillMAXDesignConcept
Patentedon-linesuctionsidewearclearanceadjustmentHybridSealingSystemmaintainsconstantflowandpressurewithoutincreasingspeedorcausingmotoroverload.
Tightclearanceatwearringpreventssuctionsiderecirculation.
Wideclearanceatexpellingvanespreventslargesolidsfrombeingcrushed.
Narrowclearanceatbacklinerensuresshaftsealingsystemworkswell.74millMAXDesignConceptPatentemillMAXDesign
3x2thru14x12IncorporatesabacklinerSolidvolutecaseWearRingadjustmentthruthecasingWaterflush,centrifugalsealandvacuum-pressuregland75millMAXDesign3x2thru14x121millMAXLargePumpDesign16x14thru28x26IncorporatesasuctionlinerCasingwithsuctionplateWearringadjustmentthruthesuctionlinerWaterflushgland76millMAXLargePumpDesign16x14KrebsmillMAXPump
SolvingtheRecirculationProblemWideclearancesat“A”preventssolidsfrombeingcrushed.Tightclearancesat“B”preventssuction-siderecirculation.Narrowclearancesat“C”ensuresshaftsealingsystemworkswell.AWideBCTightNarrow77KrebsmillMAXPump
SolvingthUrethanecarrierprovidesasealagainsttheintrusionofslurry.Longwearinghighchromeironwearringsealsagainstimpeller.4-6jackingscrewsareusedtoadjustthewearringforwardasthepumpisrunning.Patented“Hybrid”SealingSystem78UrethanecarrierprovidesaseKrebsmillMAXPump
RunningClearanceAdjustmentWideNarrowStepNo.1(AtStartUp)SetBackClearancebyAdjustingBearingAssemblytotheRearStepNo.2(DuringOperation)SetFrontClearancebyAdjustingWearRingTowardImpeller79KrebsmillMAXPump
RunningClWhilethepumpisrunning.Withoutdisconnectingthedrive.Withoutmovingtheimpellerandshaftassembly.Withoutdisturbingguardsorv-beltdrive.SettingClearancesAdjustmentsCanbeDoneThroughouttheServiceLifeoftheParts:80Whilethepumpisrunning.SettImpellerHighRadialVanesClearslargesolids.Preventssolidsfrombeingcrushed.Reducesdifferentialpressureattheeyeoftheimpeller.81ImpellerHighRadialVanesCleaAdjustableWearRingWearringtakesupclearanceattheimpeller.Adjustedduringoperation.Reducessuctionsiderecirculation.Maintainshydraulicperformance.82AdjustableWearRingWearringExternalWearAdjustmentScrews4-6screwsforon-linewearclearanceadjustment.Adjustedwhilethepumpisoperating.Adjustedsixtoeighttimesduringthelifeofthepump.83ExternalWearAdjustmentScrewTypicalWearPatternonWornImpeller84TypicalWearPatternonWornImillMAXPowerFrame
HeavyDutyCastPedestalExternalBearingAssemblyAdjustmentWideBearingCentersHeavyDutyShaftandBearingsDoubleClamps85millMAXPowerFrameHeavyDutymillMAXBearingAssemblyDesign86millMAXBearingAssemblyDesigReverseTaperRollerBearingsIncreasesEffectiveLoadSpantoImproveLife.MainBearingFailureisDuetoOverGreasing.PumpingActionofTaperRollersDischargesGreasetotheOutsidePreventingIngressofSlurryorOverGreasingofBearingCartridge.87ReverseTaperRollerBearingsI8831slurryMAXPump89slurryMAXPump329033HIGHPRESSURE/HIGHHEAD
PUMPS
4x3-17
6x4-2191HIGHPRESSURE/HIGHHEAD
PUMPS
6x4x21HighPressurePump926x4x21HighPressurePump356x4x21HighPressurePump936x4x21HighPressurePump36graveIMAX
94graveIMAX
37gravelMAXPump95gravelMAXPump38SlurryPumpApplication
96SlurryPumpApplication
39BelowBEPOperationMismatchbetweenCriticalFlowAnglesandImpellerVanesAtBEPOperationIncomingAngleofSlurryisMatchedtoImpellerVaneAngleOversizedpumpsmisalignflow97BelowBEPOperationMismatchbeW2U2C2C2
-AbsoluteFlowVelocityU2-PeripheralVelocityofImpellerW2-
RelativeVelocityofFlowBEPOperation98W2U2C2C2-AbsoluteFlowVelociW2U2C2BelowBEPOperation99W2U2C2BelowBEPOperation42OversizedPumpsIncreaseInternalSlurryVelocity100OversizedPumpsIncreaseInterOversizedPumpsIncreaseInternalSlurryVelocity101OversizedPumpsIncreaseInterEffectofSuctionSideWearonPumpingSystemFixedSpeedSystemNewConditionWornCondition102EffectofSuctionSideWearonEffectofSuctionSideWearonPumpingSystemVariableSpeedSystemNewConditionWornCondition103EffectofSuctionSideWearonGlands-ShaftSealOptions104Glands-ShaftSealOptions47WaterFlushGlandGPMFrame
Full
LowCMC 8 0.15MMA 14 0.20MMB 19 0.30MMC 24 0.50MMD 30 1.00MaxGlandWaterRequirement105WaterFlushGlandGPMMaxGlandmillMAXCentrifugalSeal–LowHead
LowSuctionHeadAir/SlurryInterfaceDryGlandCentrifugalSeal106millMAXCentrifugalSeal–LowmillMAXCentrifugalSeal–HighHeadHighSuctionHeadAir/SlurryInterfaceDryGlandCentri
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