链 回 环系统铁矿氧化球团焙烧过程的能和 分析

:2008-07-24:(100083)30(863)(No12007AA05Z215)22()22,,,29%,,40%,110%910%,910%1110%,2222,221,20067634195t[13],22(22;Grate2Kiln2Cooler,GKC),,,30,,[412],2222222,122:Fe2+Fe3+;,;,;,,,,,,,,22,,;,;,;,;5335200810SinteringandPelletizing122322,22111;2;;;;;3;;;;45CO2SO2O2NOx6FeOFe2O378;910;1112:2;,3;1;,2,44,2342(%)MadAdVdafCdafHdafNdafSdafOdaf114211161151339117241400187016021413(%)TFeFeOFe2O3SiO2H2OCaO661792711065130416591300971056519161808616041740011798131651653130901124172001179813165147013693113415700117981234O2/%NOx/ppmSO2/%CO2/%20127001670157()191107120141000189()18180121501117011601919400014180721105170()16158331401251202110()171003316015100212063352233,,22,5655115,2256%(),22,(42%)56%56%,,,29%,522kW%1223311820142233388130421143111470101416159010259117010164437317456100711061821140792371911001922285169013620222303410129107212262018001782288816011122322263412631322422824115810142518019185221742617621163221242764981328120281393117117679237191100100,,:tld=186+20lg(H2O)+26lg(SO3)(1)111180()109177(),22%23%22,,,,913%810%,14%22%:,,;,,;,72008522,;,622kW%841130101936235195331741035689152331231101350120150013451900104140128015191620102163131318829116172011101021840611013178107391125100295111030775913971233122747114961963222579615351403322149106011434419185013935815192017636222891800127372232471553102383588103313439105101449179402710132215241260139012442426411743917143201621671817744156219611461073911251005126,34%33%29%,,,Fe2+Fe3+,,,,2240%,83%3%14%3%,97%,,,,56%79%12%9%,19%,,56%,,,1/3,,3134,,,7%0136%FeO6,,,,,,:dex=-34315871[376119-317619y(100-y-417619x)2dx+317619x(100-y-417619x)2dy](2)ex,kJ/kg8335x,%y,%4(2)44,O2CO2[CO2]=517%(),[O2]1010%,,4199%;[CO2]=110%910%,[O2]910%1110%,71),29%,22%23%,,,2),,40%,3),110%910%,910%1110%,1,11,2008,43(1):15,4421(Mt)1,2007,32(6):34311,2007,32(5):154A1R1Firth,J1R1Manuel1ThermalImplicationsofPhaseTransformationsduringIndurationofIronOrePelletsProducedfromHematite1ISIJInternational,2005,45(11):156115665J1A1Thurlby1ADynamicMathematicalModeloftheCompleteGrate/KilnIron2OrePelletIndurationProcess1MetallurgicalTransactionsB,1988,(19B):1031126J1A1Thurlby1GasFlowandPressueBalancinginModellingGrate/Kilninduration1MetallurgicalTransactionsB,1988,(19B):1131217J1A1Thurlby1EnergyCostMinimizationinGrate/KilnInduration1MetallurgicalTransactionsB,1988,(19B):1231328R1W1Young,M1Cross1Mathematicalmodelofgrate2kiln2coolerprocessusedforindurationofireorepellets1IronmakingandSteelmaking,1979,(1):1139J1A1Thurlby,etal,Developmentandvalidationofamathematicalmodelforthemovinggrateindurationofironorepellets1InternationalJournalofMineralProcessing,6(1979):436410M1Cross,R1W1Young1Mathematicalmodelofrotarykilnsusedintheproductionofironorepellets1IronmakingandSteelmaking,1976(3):12913711121,2005,14(2):5962,8912,,.-1,2007,32(6):2934EnergyandExergyAnalysisofIronOrePelletsIndurationinGrate2Kiln2CoolerZhangYuetal1AbstractAccordingtothermalbalancetest,energyandexergyanalysishasbeenconductedtoinvestigatethethermodynamiccharacteristicsofironorepelletsindurationingrate2kiln2cooler(GKC)plant1Theenergyanalysisshowsthat92008522:2008-08-22:(430070)GPS()GPS:012%GPS,011%GPS+015%,3121110N/600,2450N/,210%,,11,,:SiO2KNa,,1%2%,3%,,,,,(Peridur),1981Alcotac,,,[13],80,F,90,[4],,,1994,,200712GPS,,,theenergylossismainlycausedbyexhaustgas(29percent)1Further,theexergyanalysisrevealsthattheirreversibilityofheattransfer(40percent)isthemajorsourceofexergydestruction1Atlast,theeffectsofpercentoxygenandcarbondioxideontheexergylosseshavebeenstudiedandtheresultshowsthatbycontrolofparameterofpercentoxygenranging910%1110%inthekiln,theexergydestructionreachestheminimumatpercentcarbondioxideranging110%910%1Inaword,thisstudyprovidesabetterunderstandingoftheenergyandexergyflowsofironorepelletsindurationintheplant1Thefindingsofthepresentstudycanfurtherbeappliedtoperformprocessoptimizationtomaximizethecost2effectivenessofironorepelletsindurationproductionbyGKCplant1Keywordsgrate2kiln2cooler,irreversibility,energyandexergyanalysis,oxidizedpellet,systematicallyenergy2saving01SinteringandPelletizing335200810