外文翻译--大型刮板输送机的现状与发展趋势.doc外文翻译--大型刮板输送机的现状与发展趋势.doc

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翻译部分英文原文THEPRESENTANDFUTUREDEVELOPMENTOFBELTCONVEYERABSTRACTTHISPAPERANALYZESTHEPRESENTANDFUTUREDEVELOPMENTOFDOMESTICANDOVERSEASABOUTBELTCONVEYER,ESPECIALLY,HEAVYBELTCONVEYER(INCLUDETRENDANALYSISOFTHEBELTCONVEYERANDMONITORINGTECHNOLOGY),EQUIPMENTFUNCTION,RELIABILITYANDLIFE,EXPOUNDSTHEDEVELOPINGTRENDOFBELTCONVEYERKEYWORDSBELTCONVEYER;PRESENT;FUTUREDEVELOPMENT1BELTCONVEYORTECHNOLOGY,THESTATUSQUOABROADCONVEYORTECHNOLOGYABROADSOON,ANDITSMAINLYMANIFESTEDINTWOASPECTSONTHEONEHAND,THEFUNCTIONOFCONVEYORDIVERSIFICATION,EXPANSIONOFTHESCOPEOFAPPLICATION,SUCHASHIGHANGLECONVEYOR,TUBECONVEYOR,SPACEMODELSSUCHASTURNINGCONVEYOR;CONVEYORITSELFONTHEOTHERHAND,THETECHNOLOGYANDEQUIPMENTHASBEENTREMENDOUSDEVELOPMENT,ESPECIALLYLONGDISTANCE,LARGECAPACITY,HIGHSPEEDLARGESCALECONVEYORBELTHASBEENBECOMETHEMAINDIRECTIONOFDEVELOPMENT,THECORETECHNOLOGYISTHEDEVELOPMENTANDAPPLICATIONOFTHECONVEYORDYNAMICANALYSISANDMONITORINGTECHNOLOGY,ENHANCINGTHEOPERATIONOFTHECONVEYORPERFORMANCEANDRELIABILITYATPRESENT,THEUSEOFCOALMINEBELTCONVEYORSHOWNINTABLE1HASREACHEDTHEMAJORTECHNICALINDICATORS,THEKEYTECHNOLOGYANDEQUIPMENTHASTHEFOLLOWINGCHARACTERISTICS1LARGESCALEEQUIPMENTTHEMAINTECHNICALPARAMETERSANDEQUIPMENTTOWARDTHELARGESCALEDEVELOPMENTTOMEETTHEANNUALPRODUCTIONCAPACITYOF300TOMORETHAN5,000,000TOFINTENSIVEHIGHYIELDPRODUCTIONOFHIGHPERFORMANCENEEDS2THEAPPLICATIONOFDYNAMICANALYSISTECHNIQUES,ANDMECHANICALANDELECTRICALINTEGRATION,COMPUTERMONITORINGCONTROL,SUCHASHIGHTECH,USINGHIGHPOWERSOFTSTARTANDAUTOTENSIONINGTECHNOLOGY,DYNAMICCONVEYORMONITORINGANDCONTROL,GREATLYREDUCEDTHEDYNAMICTENSIONOFTHECONVEYORBELT,EQUIPMENTPERFORMANCE,ANDHIGHTRANSPORTEFFICIENCY3THEUSEOFMULTIMACHINEDRIVENANDPOWERDRIVENANDMIDDLEBALANCETOTHEOPERATIONOFCONVEYORTECHNOLOGYCHANGES,SOTHATRUNTHELENGTHOFASINGLECONVEYORHASUNLIMITEDINTHEORY,ANDTOENSURETHATTHECOMMONCARRIERSYSTEMEQUIPMENT,ANDINTERCHANGEABILITYANDRELIABILITYDRIVENUNIT4NEW,HIGHRELIABILITY,THEKEYTECHNOLOGYCOMPONENTSSUCHASTHECST,INCLUDINGINCLUDEAVARIETYOFADVANCEDHIGHPOWERDRIVENDEVICESANDSPEEDCONTROLDEVICES,HIGHLIFEHIGHSPEEDROLLER,ROLLERTYPEBYITSELFDEVICESWITHHIGHPERFORMANCESTORAGEDEVICES,THERAPIDSHIFTFROMTHETAILANDSOONFSWPRODUCTIONSUCHASTHEUNITEDKINGDOMFSW1200/23400600FACECONVEYORTROUGHTHEINTRODUCTIONOFALIQUIDORVISCOUSDIFFERENTIALFREQUENCYCONVERTER,TRANSPORTCAPACITYOF3000T/HORMORE,ITSREPRODUCEDINTHETAILWITHTHENEWMACHINESSUCHASTHEUNITEDSTATESPRODUCEDBYJOYS500EMATCHINGCANBEAUTOMATICALLYGOESWITHTHEFACECHANGEDRAPIDLYSINCE,MANUALLESS,MANUFACTURINGANDHIGHEFFICIENCYTAB1THEMAINTECHNICALPARAMETERSOFBELTCONVEYERINOVERSEAS2DOMESTICCONVEYORTECHNOLOGY,THESTATUSQUOTHEMAINPARAMETERSTELESCOPICBELTCONVEYORTROUGHDISTANCES/M20003000MORETHAN3000SPEEDS/M/S35445,THETOPIS8TRANSPORTNUMBERS/T/H2500300030004000POWERDRIVEN/KW1200200015003000,THETOPIS10100CHINASPRODUCTIONOFVARIETIESOFBELTCONVEYOR,TYPEMOREINTHEEIGHTHFIVEYEARPLANPERIOD,THROUGHTHENATIONALONESTOPNISSAN10,000TONSFULLYMECHANIZEDMININGEQUIPMENTPROJECT,THESKILLLEVELOFCONVEYORGREATLYIMPROVEDCOALMINEWITHHIGHPOWER,LONGDISTANCEBELTCONVEYORTHEKEYTECHNOLOGYRESEARCHANDNEWPRODUCTDEVELOPMENTHAVEMADEGREATPROGRESSSUCHASTHELONGDISTANCEBELTCONVEYORINCLINATIONCOMPLETESETSOFEQUIPMENT,HIGHYIELDHIGHPERFORMANCESCALABLEFACECONVEYORTROUGHFILLEDTHEGAP,ETC,ANDTHEKEYTECHNOLOGYOFBELTCONVEYORCOMPONENTSANDITSMAINRESEARCHANDTHEORETICALPRODUCTDEVELOPMENT,SUCCESSFULLYDEVELOPEDAWIDERANGEOFSOFTSTARTANDBRAKINGDEVICEANDTHEPLCASTHECOREOFTHEPROGRAMMABLEELECTRONICCONTROLDEVICES,VARIABLESPEEDDRIVESYSTEMUSINGFLUIDCOUPLINGSANDPLANETARYGEARREDUCERATPRESENT,CHINASCOALMINEBELTCONVEYORWITHTHEMAINTECHNICALCHARACTERISTICSOFINDICATORSASSHOWNINTABLE2TAB2THEMAINTECHNICALPARAMETERSOFBELTCONVEYERINCHINA3CONVEYORTECHNOLOGYGAPBETWEENDOMESTICANDFOREIGNLARGEBELTCONVEYOR31KEYCORETECHNOLOGYGAP1BELTCONVEYORDYNAMICANALYSISANDLONGDISTANCEMONITORINGTECHNOLOGY,THEKEYTOHIGHPOWERCONVEYORTECHNOLOGYISADYNAMICDESIGNANDMONITORING,ITISTHEMAINPARAMETERS300500MILLIONT/AHIGHEFFICIENCYCOALMINEINCHINATELESCOPICBELTCONVEYORDISTANCES/M1000200010004000SPEEDS/M/S235254TRANSPORTNUMBERS/T/H800180010002000POWERDRIVEN/KW2507507501500THECONSTRAINTSOFLARGESCALECONVEYORCORETECHNOLOGYDEVELOPMENTCHINASUSEOFRIGIDCONVEYORTHEORYANALYSISANDTODEVELOPCALCULATIONMETHODSANDDESIGNSPECIFICATIONS,DESIGNOFACONVEYORBELTUSINGAHIGHSAFETYFACTORUSUALLYTAKENAROUNDN10,ADIFFERENCEOFDISTANCEWITHTHEACTUALSITUATIONCONVEYORBELTISINFACTVISCOELASTICBODY,LONGDISTANCEBELTCONVEYOROFTHECONVEYORBELTDRIVE,THEBRAKINGFORCEOFTHEDYNAMICRESPONSEISAVERYCOMPLICATEDPROCESSANDCANNOTSIMPLYBEEXPLAINEDBYRIGIDBODYMECHANICSANDCOMPUTINGHASDEVELOPEDMETHODSANDDYNAMICDESIGNOFBELTCONVEYORAPPLICATIONS,INALARGECONVEYOROFCONVEYORDYNAMICTENSIONFORDYNAMICANALYSISANDDYNAMICMONITORINGOFTHESAFETYFACTORTOREDUCECONVEYORBELT,GREATLYEXTENDINGTHESERVICELIFETOENSURETHERELIABLEOPERATIONOFCONVEYORNATURE,SOTHATTHEDESIGNOFLARGESCALEBELTCONVEYORHASREACHEDTHEHIGHESTLEVELCONVEYORBELTSAFETYFACTORN56,ANDCONVEYOREQUIPMENT,ESPECIALLYTHECOSTOFGREATLYREDUCEDTHECOSTOFACONVEYORBELT2ARELIABLECONTROLLEDSOFTSTARTPOWERTECHNOLOGYANDMASSBALANCEOFLONGDISTANCEBELTCONVEYORTECHNOLOGYBECAUSEOFTHEIRLARGECAPACITY,LONGDISTANCEANDMULTIMACHINEDRIVEN,SOFTSTARTAPPROACHMUSTBEUSEDTOREDUCETHEDYNAMICTENSIONOFTHECONVEYOR,INPARTICULAR,ISAMULTIWHENTHEMOTORDRIVEINORDERTOREDUCETHEIMPACTONPOWERGRIDS,SOFTSTARTTIMESHOULDHAVEASLOWSTART;ALSOSTARTACCELERATIONCONVEYORCONTROL0301M/S2,SOLUTIONWITHCARRYINGBELTANDTHEBELTDRIVEANDCONVEYORBELTSPEEDSYNCHRONIZATIONSURGEPHENOMENON,REDUCETHEIMPACTOFCOMPONENTSASARESULTOFMANUFACTURINGERRORANDTHEELECTRICALCHARACTERISTICSOFTHEERROR,THEDRIVINGPOINTOFTHEPOWERIMBALANCEWILLAPPEARASSOONASAMOTORPOWERISTOOLARGETOBECAUSEDBYELECTRICALBURNACCIDENT,THEREFORE,THEPOWERBALANCEBETWEENMOTORSHOULDBECONTROLLED,ANDTOIMPROVETHEACCURACYOFTHEBALANCEDOMESTICAPPLICATIONSHAVEALARGENUMBEROFVARIABLESPEEDFLUIDCOUPLINGTOACHIEVETHESOFTSTARTCONVEYORANDPOWERBALANCE,TOSOLVETHELONGDISTANCEBELTCONVEYORANDTHEPOWERBALANCEOFTHESTARTUPANDSYNCHRONIZATIONISSUESHOWEVER,THEACCURACYANDRELIABILITYOFITSREGULATIONINCOMPARISONWITHFOREIGNCOUNTRIESTHEREISSTILLACERTAINGAPINADDITION,LONGDISTANCEHIGHPOWERREQUIREMENTSINADDITIONTOACOALCONVEYORBELTSPEED,BUTALSOTHENEEDFORAPOSTMORTEMWITHTHE
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