简介：

简介：

简介：

简介：Inordertostabilisetheoperationoftheblastfurnaceandtoraiseitsoperationefficiency,researchworksfortheapplicationofmicrowaveandlaserscanningtechnologiestothemeasurementhavebeenintensivelycarriedoutatChinaSteelCorporation(CSC).Tomonitortheburdenprofileduringtheoperation,amicrowaveburdenprofilemeasuringsystemwasdeveloped.Thesystemconsistsofaradarunit,asignalprocessingsystem,andadrivingdevicewhichiscapableofrotatingtheradartoscantheburdensurfaceinaspecifieddirection.Anitrogencoolingsystemwasdesignedtoprotectthemeasurementsystem.AprototypeburdenprofilemeterwassuccessfullytestedinNo.1blastfurnacein2008,andapermanentonewasinstalledatNo.3blastfurnace.ThesystemhasprovidedusefulinformationforadjustingthechargingsequenceinNo.3blastfurnace.Foranotherapplication,3-Dlaserscanningtechnologyisemployedtomonitortheblastfurnaceliningcondition.Tothisend,adataregistrationmethodhasbeendeveloped,throughwhichtwomeasuredrangeimagessensedatdifferentperiodandlocationscanbefittedintothesamecoordinatesystem.Inpractice,theerosionoftheblastfurnaceliningcanbeestimatedwhenthecurrentinnerprofileiscomparedwiththattakenbeforetheblow-inoperation.ThistechnologyisalsoadoptedtoevaluatetheperformanceofgunningoperationintheblastfurnacesatCSC.

简介：Aconoscopicholography-based3Dmeasurementsystemforanalyzingthedefectsonthesurfaceofsteelplateswasintroducedinthispaper.Thehardware,whichisautomatedthroughsoftware,performssamplingofthesteelplatesurface.Throughthesoftwareinterface,point-clouddataofthesteelplatesurfaceareobtainedandreconstructedtoforma3Dimageofthesteelplatesurface.Thesoftwareallowsautomaticanalysisofsteelplatesurfacedefectsthroughidentificationofthebulgesanddepressions.Inaddition,thesoftwarecanalsoautomaticallycalculatethedefectinformation,suchasthedeepestpoint,volume,openingarea,openinglength,andsoon,therebydeterminingthedefectsize.Theresultsdeterminedbythis3Dmeasurementsystemwerefoundtobeingoodagreementwiththeactualvalues.