最大限度地提高磨机的效率外文文献翻译.docx

最大限度地提高磨机的效率外文文献翻译.docx

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最大限度地提高磨机的效率外文文献翻译

附录A

Maximizetheefficiencyofthemill

QingfeiXiaoa,*,HuaibinKanga,BoLia,ChunmeiLuob

AASRIProcedia7（2014）14–19

Abstract:

Optimizedstudytotheratioofprimevalballloadingin4.0×6.0moverflowballMillofYingezhuanggoldmine,theresearchresultsshowedthatitpertainstolowhardandbrittleores,theaccuratesizeballshouldbeusedratherthanbigsizeballduetomainlyfinesmineralareproducedintheprocessofcomminution.Astheyieldofintermediategranularitybetween8to0.45mmreachupto50.34%,theintermediateparticlesshouldbestrengthenedingrinding,-400meshcontentisabout40%and-10umcontentaccountsforaquarterofthegrindproductswhatshowedthatparticlessizearenotsatisfiedandunfavorabletosubsequentseparation.Theoptimumschemeofprimevalballloadingisthat:

ij70:

ij60:

ij50ij40=15:

15:

30:

40forij4.0×6.0moverflowballmill,theseparatesizescontentsis64.19%between0.15~0.019mmwhichincreasingby19.14%comparewith44.78%andthemill-200meshutilizationcoefficientincreasing12.6percentscomparewith0.14aboutoriginalprogramwhenij4.0×6.0moverflowballmillworkitselfalone,inaddition,themill-200meshutilizationcoefficientincreasing11.71percentscomparewith0.1503aboutoriginalprogramwhenij4.0×6.0moverflowballmillandij3.6×6.0mgrateballmillareworkingtogether.

Keywords:

Primevalballloading;overflowballmill;sizeratio;optimize

1.Introduction

Thedesigneddailyprocessingcapacityisabout4700tonandgolddepositbelongstothetypeofquartzveinofYingezhuangGoldMine.Astheoresareinshortsupply,theij3.6×6.0mgrateballmillonandoff,nevertheless,ij4.0×6.0moverflowballmillworkingallalong,Theunderflowparticlesreturnstoregrindingandtheoverflowparticlesenterintoflotationsubsequentafterhydrocycloneaboutonestagegrindingproducts,grindingflowdiagramofYingezhuangGoldMinasthefigure1shows.ij4.0×6.0moverflowballmillisclosed-circuitgrinding,itneedtonotonlyownreturnoversize,butalsothereturnoversizefromij3.6×6.0mgrateballmill,duetotheij3.6×6.0mgrateballmillworkuncertainwhichbringmanyinconveniencesforij4.0×6.0moverflowballmill.ThePlantschemeofprimevalballloadingisthat:

100:

80:

60=20:

40:

40forij4.0×6.0moverflowballmill,coarseparticles（>0.15mm）isalarger,theyieldof-200meshisbetween18%to20%andthesizecompositionisirrationalingrindingproducts.ThispaperaimstooptimizetheRatioofPrimevalLoadingBallandthesizecompositionofgrindingproducts.

1.GrindingflowdiagramofYingezhuanggoldmine

Highefficientenergy-savingballmillisaneternaltopic.Especiallytheshaftkilncemententerprises,withcomprehensivemanagementoftechnologicalprogress,constantlyimprovetheshaftkilnclinkeroutputtable;crosscenturyaftertheimplementationofthenewstandardsofcement,cementfineness,putforwardhigherrequirementsthanthesurfaceareaandtheparticlegrouphaspracticalChengdu.Thesignificanceofhowtoimprovethemilloutput.

2.Workefficiencyandenergyconsumption

Intheproductionprocessofcementmill,isoneofthekeyequipmentforpreparationofcementmill,electricityconsumptionaccountedforthequalityofcementcomprehensivepowerconsumption60%~70%.rawmilldeterminesandaffectsthetechnicalparametersofkiln,cementmilliftheconfigurationisreasonable,canmakeupforsomedefectsofcementclinker.Therefore,highquality,highquality,highproduction.Ofcemententerprisestoachievehighyield,lowconsumptionisofgreatsignificance.So,howtorealizethehighqualityandhighyieldofcementmill?

Theauthoraftermanyyearsstudyandpractice,understandingthefollowingpoints:

Reducethefeedingsizeofafewyearsago,cementgrindingsizehasnotbeencemententerprisesattention.Inrecentyears,cementgrindingprocesshasthecementgrindingsizewaspromotedtoanimportantposition,"morecrushingandlessgrinding"pointofviewhasbeenrecognizedbytheindustry."Morecrushingandlessgrinding"thatistheoriginaltoentermmill30mparticlesizeto3mm.Atthisstage,theproductionofcrushermanufacturershaveintroducedhighXichuicrusher,sievingrollcrusher,rollerpressandsoon.Theenterpriseactual,theoriginaljawcrusherforsuperfinehammertypescreeningcrusher,grindingthesizefromtheoriginal30mtoM5mmbelow,soastoimprovethemilloutput.Afterthat,theauthorusesrollerpresstoreducetheparticlesizetolessthan2mmandincreasetheoutputbymorethan50%

Optimizationofgrindingprocessofcementgrindingprocessisdividedintoopenandclosedsystem.Theformerunitstartedproductionofcementareusedinopensystems,cementfinenessisnoteasytocontrolfluctuations.Therefore,theunitinvestedhundredsofthousandsofyuan,theopencircuitgrindingsysteminsteadofaclosedcircuitgrindingsystemisadditionallyprovidedwitharotorpowderselectingefficiencyanefficientupdatemachine,bagfilter,soastoimprovethespecificsurfaceareaofcement,increasethecementstrengthandgoodeffect.Theauthorisnowusingarollerunit,classifier,3.8*13mcementmillcombinedgrindingsystem,cementgrindingproductionfrom60~70t/h,increaseto100~120t/h

Controloffeedingwaterandtemperaturecontrolingrindingofcomprehensivewaterislessthan1.5%,istoensurethebasicrequirementsofhighqualityandhighyield.Ifthemillingrindingthewateristoohigh,willcausetherollerextrusioncaketooreal,noteasytobreakup;atthesametime,easytocausethemillventilation,blockeddiaphragms,grate,pasteball,pastelining,dustcondensation.Theauthorunitofthemixedmaterialintotheplantwater,materialsintheproductionprocessofdryingandstrictcontrol,seriouslyexamine,andstrictlycontrolthefeedingtemperaturewithintheprocessrequirement,toensurethenormaloperationofthemill.

Controlingrindinggrindabilityofmaterialsgrindingdegreeofdifficultyfromthematerialitself,C2SandC4Ainclinkerhighgrindingisdifficult.TheauthortriestoensuretheproductionunitC3AandhighC3Sclinkerintheingredients,toimprovethegrindingperformanceofthematerial.Accordingtotheauthor'sexperience,oneistheclinkerandslagseparategrindingslagpowder,preparationofacertainamountofcementproductionduringthewinterbyseparategrindingsystem,intheproductionofcementduringtheproportionofadding,soastoimprovethegrindabilityofslag;twoistheincorporationofbasicapproachandfinenessofcementflyashmixture,inordertoimprovethegrindabilityofmixedmaterial.Thatistosay,inordertoimprovetheflourmillInordertoimprovethegrindingefficiency,theoriginalfuelmustbeoptimizedtoimprovethegrindabilityofthegrindingmaterial.

Goodcontroloftheventilationventilationwithinthemill,haveasignificanteffectontheyieldandquality.Oneofitsfunctionsistofinepowderdischargegrindingbody,soasnottoaffectthegrindingefficiency,forminggrinding;thetwoistotakelowergrindingtemperatureinthegrindingheat,reducethedehydrationofgypsumpastepaste,andball.Blockingplate,blockingpartitionboardandsoon.Circleflowshouldbecontrolledat0.8~1.0m/swindspeedgrinding,grindingopenflowshouldbecontrolledin1.0~1.2m/s.Indailyproduction,shouldbefullyawareoftheimportanceofmillventilation,attentioninsidethemilldiaphragmplatescreenslotsize,inordertofacilitateventilationinsidethemill.Atthesametimeweshoulddoagoodjobofblockingtheairleakage.Airtightwork.Theauthorusesstrongventilationandbagfilter,whichhasreceivedbetterresults

Timelyadjustmentofgrindingmediagrading,intheequipmentconfigurationallows,appropriatelyincreasetheballsectionload,beneficialtoimprovethemilloutput.Inaddition,addthegrindingbodyshouldbebasedontheactualfeedingsize,grindabilityfactorandliningplateandthepartitionplateform,position,andmillpower.Speed,grindingprocess（closedoropen）,acomprehensiveanalysisofpositionsdetermined.Forlargerparticlesize,poorgrindabilityofmaterialsshouldbeusedinlargediameter,andballdiametershouldbesmaller.

Intheproductionprocessshouldadheretotheregularproductionofthegrindingbody.Thegrindingbodygraduallyconsumed,theweight,volume,shapechange,sothatthegradationchange.Inordertoensurethatthemillinthebestworkingcondition,shouldbeadded.Thespecificationsandquantityofthegrindingbodyofthegrindingbody,asthemainbodymaterialgrindingmill.Theyieldandqualityofmilloperationtime.Accordingtotheactualgrindinggrindingconsumptionpertonofproduct,determinethenumberofgrindingbody,asteelballtoadddailywarehouse1,twowarehouseandSancangshouldbe7daysor10daysplus1times.Thegrindingbodycanbeusedasgrindingmediagradingfine-tuning,suchasgrindinghightone,coarsefinenessWhenthesmallsizeshouldbeaddedtothegrindingbody;grindingfinenessandlownoise,stable,largespecificationsshouldbeaddedtothegrindingbody.Inaddition,inthedailyproductioncanalsobeaddedtothegrindingbodyaccordingtothechangeofthemillcurrentchangeandmilloutputquality.Shouldregularlycheckthepositionsinthegrindingbodybreakage.Whentheballmoredamagewhentheclearanceshouldberegraded.Cleaningperiodshouldbeconsideredmaterialandgrinding.Undernormalcircumstances,thegeneralfrontchamberfor3~6months,ifnotoutofthetailwarehousesectionofballgrindingorblockageofsievegratehole,generallyonlyadded