靴式压榨原理简介

Teknologi&ApplikationerSymBelt™valsförPresspartiochOptiDwellkalanderMalinKilianProductManagerSymBeltRollsBoardMakingLinesInstalledSymBelt™rolls020406080100120No.inoperation199019911992199319941995199619971998199920002001YearBoard/PackagingWriting/PrintingPulpdryingForCalendersReferencebase,SymBelt™Rolls0500100015002000250020004000600080001000012000Wirewidth(mm)Designspeed(m/min)BoardandpackaginggradesPrintingandWritinggradesPulpgradesCalenders-Forpresssections-Forcalender,OptidwellSymBelt™RollTechnologyTheSymBelt™NipC-Clamps-connectthetworollsSymZLorSolidRollSymBelt™RollClosedLoadingClampsToppositionMDCDKSD/BRD6111-021BNMSymBelt™ATRoll-AdjustableTiltversion-Tworowsofhydrauliccylinders-Tiltcanbechangedduringoperation-Possibilitytohave5zonesinCDSymBelt™FTRoll-Fixedtiltversion-Tiltcanbechangedbetweentwofixedvaluesduringshutdown-OnezonewithpossibilitytoedgecontrolTwotypesofSymBelt™RollsSymBelt™ATAdjustableTiltversionTworowsofhydrauliccylindersKSD/BRD6111-015KNMSymBeltFTRoll-FixedTiltversionOnerowofhydrauliccylindersSymBelt™RollFixedTiltversionKSD/BRD6111-026:2KNMBeltPressShoeRotatingheadBeamSymBelt™RollFixedTiltversionKSD/BRD6111-026:3KNMBeltBeamPressShoeRotatingheadHydrauliccylindersOilevacuationSymBelt™RollFixedTiltversionKSD/BRD6111-026:4KNM•Simplifieddesign•Thetiltcanbechangedbetweentwofixedvalues•Smalldimensionscanbeusedforhighloadsandwidemachines•Newimprovedoilevacuation*•ImprovedmovementofthebeltinCD*•Hybridshoedesign=lowpowerconsumption,lowshoetemperatureandlongbeltlives*SymBelt™FTFixedTiltversionFeatures*=alsoapplicablefortheadjustabletiltversionKSD/BRD6111-023KNMSymBelt™Rollwithfixedtilt,inclinedtoppositionSymBeltOilEvacuationImprovedOilevacuationBellowallowmovementofevacuationequipmentSymBelt™RollBeltclampingsystemMovementofthebeltinCDLongdistancebetweenslidingsurfaces=improvedsliding=decreasedelongationofbeltandimprovedrunnabilityHydrauliccylindersformovementoftheheadKSD/BRD6111-014aKNMSymZLandSymBeltFTSymBelt™Rollwithfixedtilt,bottomposition.SymZLcounterrollSymZLKSD/BRD6111-020ALOSymZLCrollforSymPressB35230-12ATS/AL2/98PressurizedoilinReturnoiloutSuctionrollPressurizedoilinSymBeltrollBeltFeltCoolingoilWebShellcoverKSD/BRD1712-004HntBoardMachinesKSD/BRD6110-001GOLSymBelt™Hydraulic&ControlSystemThehybridshoedesignSymBelt™RollTechnologySymBelt™Roll-Pressurecurves444240383634323028262422201816141210864214710131619220.001.002.003.004.005.006.007.008.009.00AdvantageswithhybridshoedesignFlexibilitytooptimizethenippressurepulseforallpaper,boardandpulpgradesDecreasedpowerconsumptionandshoetemperatureLesssensitivetowaddamageIncreasedbeltlife-10000-500005000100001500020000-0,2-0,100,10,2Length(m)Shear(Pa).-10000-500005000100001500020000-0,2-0,100,10,2Length(m)Shear(Pa).HydrodynamicshoeShoewithpocketThepocketresultinverylowshearstressvaluesduetothethickoilfilm.Whydoesahydrodynamicshoeresultinhigherpowerconsumption?pocket-Forpresssections-Forcalender,OptidwellSymBelt™RollTechnologySymBelt™RollThermoRollFrameOptiDwellRollsTheSymBelt™Roll,apartoftheOptiDwellSymBelt™FTRollforCalendersInstalledcalendersFuturecalendersSymBeltRollforCalenderExampleofpressurecurves•Niplength60-280mm•Nipload100-400kN/mWhyOptiDwellLongNipCalender?PRODUCTIVITY•Bettereconomywithfibersavingsincalendering-Possibilitiesupto7-10%savings•Higherrunningspeeds-Possibilitiesupto30%higherproductionvaluesQUALITY•Whenuniformsurfaceandbetterprintabilityofpaper/boardarerequired•WhenhigherbulkandstiffnessatagoodsmoothnesslevelareneededForhigherafterpressdrynessandimprovedpaperqualitySymBelt™RollTechnology