Mathematical simulation of burden distribution in COREX 3000 shaft by discrete element method-中国期刊网

摘要 Thedistributionofreducinggasinashaftfurnacedominatesthetemperatureprofile,gasutilizationratio,metallizationdegreeandistheoverwhelmingfactorforstable,highproductivitiesandlow-energy-consumptionoperation.Atthesametime,thedistributionofgasflowismainlydeterminedbythepositionofgasinlet,thepackedbedporositydistributionaswellasitschangeduetothedifferenceonthemodeoftopchargeandbottomdischarge.Wheninjectingpositionoftheprocessisfixed,thechargemodeistheonlymeansforregulatingthegasflowdistribution.Inthispaper,anumericalsimulationmodelofburdendistributionintheshaftfurnaceofCOREX3000hasbeendevelopedtoanalyzetheporositydistributionunderthedifferentchargemodesbymeansofDiscreteElementMethod(DEM).Theeffectsoftheparticlesizeanditsdistributionunderconditionsofdifferentchargebatches,chuteangle,stokelineontheburdensurfaceshapeandburdenbedparticlesizedistributionandsegregationwereinvestigated,andthentheporositydistributionintheshaftofcorrespondingchargingpatternwasquantitativelyaccessed.Therefore,theresultscanbeusedtooptimizethechargepatternsbaseonrequiredgasdistribution.

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Mathematical simulation of burden distribution in COREX 3000 shaft by discrete element method

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Mathematical simulation of burden distribution in COREX 3000 shaft by discrete element method

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