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MPS型生料立磨辊体磨损的原因与处理方法.docx

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MPS型生料立磨辊体磨损的原因与处理方法 Abstract ThewearofMPStyperawmaterialverticalrollermill(VRM)rollerbodyisacommonissuefacedinthecementindustry.Thispaperaimstoanalyzethecausesofrollerbodywearandexplorepossiblesolutions.Firstly,thereasonsforwearareinvestigated,includingabrasivematerialcharacteristics,rollerdesignflaws,andoperationalfactors.Then,potentialtreatmentmethodsareproposed,suchasusingwear-resistantmaterials,optimizingrollerdesign,andimprovingoperationalpractices.Byunderstandingthecausesandimplementingappropriatesolutions,thewearofVRMrollerbodiescanbeeffectivelymitigated,resultinginimprovedmillperformanceandlongerservicelife. 1.Introduction Inthecementindustry,rawmaterialverticalrollermills(VRMs)havebecomethepreferredchoiceforgrindingrawmaterialsduetotheirhighefficiencyandenergy-savingcapabilities.However,thewearofVRMrollerbodiesisasignificantissuethataffectstheoverallperformanceofthemill.Itnotonlyreducesthegrindingefficiencybutalsoincreasesmaintenancecosts.Therefore,itiscrucialtounderstandthecausesofrollerbodywearandfindeffectivesolutionstomitigateit. 2.CausesofMPSTypeVRMRollerBodyWear 2.1AbrasiveMaterialCharacteristics Oneoftheprimaryreasonsforrollerbodywearistheabrasivenatureofrawmaterialsusedincementproduction.Thehardness,size,andshapeofparticlesplayacrucialroleindeterminingthelevelofwear.Harderandlargerparticlestendtocausemoresignificantwearontherollersurfaces,leadingtoaccelerateddeterioration. 2.2RollerDesignFlaws ThedesignoftheVRMrollerbodycanalsocontributetowear-relatedissues.Improperselectionofmaterials,inadequatesurfacehardness,andinsufficientstrengthcanresultinprematurewear.Additionally,thegeometryandsurfaceroughnessoftherollerscaninfluencethecontactpressureanddistribution,impactingwearpatterns.Therefore,optimizingtherollerdesignisapotentialsolutiontoreducewear. 2.3OperationalFactors Operationalfactorssuchasgrindingpressure,millspeed,feedrate,andmaterialmoisturecontentcansignificantlyimpactthewearofrollerbodies.Excessivegrindingpressureandhighmillspeedscanincrease