关键词:干熄焦大容积焦炉配煤焦炭性能ABSTRACTInrecentyears,alongwiththeapplicationoflargescaleblastfurnaceandoxygenrichpulverizedcoalinjectiontechnologyathomeandabroad,sothatthecokeratiodroppedsubstantially,cokeinablastfurnaceresidencetimelonger,moreprominentcolumnandskeleton,whichasksforhigherrequirementsofcokequalityLargerCokeovenandCDQimpactonthequalityofcokehasmoreobviousadvantages,takingthesetechnologyhasbecomeanimportantwaytorealizeacoordinate,healthyandsustainabledevelopmentofthecokingindustryTothisend,withthefiercemarketcompetitionandincreasinglytensionofhighqualitycokingcoalresources,tocarryoutalargevolumeofcokeovenunderCDQtechnologyandcokeperformancestudyareofstrategicsignificancetothedevelopmentofironandsteelenterprisesInthiswork,influenceofcoalqualityindicator,cokingtechnologyandprocessmanagementoncokequalitywasanalyzedbaseonextensivecollectivedataUnderexistingcoalresourceofBaotousteelenterprise,wemaderesearchoncoalqualityofeverysinglecoalandsomenewlydevelopedcoalAseriesofsingleandmultipleporestestofsmallandlargeovenwerecarriedouttogettheoptimumblendingcoalplanunderCDQprocessinlargescalecokeovenUnderthesameconditionofcoalblendingratioandcokingtechnology,ourstudyfocusontheeffectofCDQprocessonmicrostructurecomposition,porosity,hotandcoldstrengthandcokesizeUndertheconditionsofdifferentcoalblendingratioandtogetequalcoalquality,researchesweremadeunderCDQtechnologyinlargevolumecokeoventofindthemostreasonablecoalblendingplan,soastogivefullplaytotheadvantageoflargevolumecokeovenandCDQprocessTraditionalcoalquantitytestandblendingtechnologywereemployedintheexperiment,meanwhile,petrographictechniquewasusedtoscientificallydeterminetheblendingratioOntheotherhand,coalblendingandcokeperformanceundercertainblendingratiowerefurtherinvestigatedthroughthekgoventestandtheporousvolumeofcokeovenindustrialtestTheresultsshowthatstrengtheningthemanagementofblendingfinenessisthekeyfactortoimprovethequantityofcokeFacingtheshortageofcokingcoalresources,thedevelopmentandstudyofnewcoalandapplicationisparticularlyimportantComparedwithmcokeoven,thelargevolumemcokeovencokehassignificantlyimprovedthecokequantityUnderCDQprocess,themechanicalstrengthMofcokepreparedbymcokeovenwasincreasedby~,Mwasincreasedby,andmeanwhilethethermalperformanceofcokewasalsosignificantlyimprovedKeywords:cokedryquenching,largescalevolumeofcokeoven,blendingcoal,propertiesofcoke