降低烧结能耗的措施

40420054IronandSteelVol.40,No.4April2005,,,(,075100):,65185kg/t62112kg/t,5166%(6710kg/t)4188kg/t,:;;;:TK01+8:A:04492749X(2005)0420076204MeasurementsforreducingEnergyConsumptionofSinteringHANRui2shi,LIGui2Yang,YINZhen2kui,YANYu2xin(Ironworks,XuanhuaIronandSteel(Group)Co.,Ltd.,Xuanhua075100,China)Abstract:Byimprovingthequalityoffeedingmaterials,controlandavailabilityofsinteringmachine,adoptingad2vancedsinteringtechnologyandmanagement,theenergyconsumptionofsinteringwasreducedfrom65185kg/tto62112kg/twithareductionrateof5166%.Comparingwiththeaverageconsumptionof67100kg/tatdomestickeymetallurgicalinterprises,thisfigureis4188kg/tlower.Astheenergysupplyisinshortage,theexperienceandachievementobtainedisbeavaluablereferencetotheinterpriseswithsimilarsinteringmachines.Keywords:measurementsforrevamping;productionmanagement;sintering;energyconsumptionintheprocess:(19642),,,;E2mail:[e-mail];:2004206221(R=214011)3400t/d2300m31960t,26002700t700800t/d,,,[1]31111,(),23mm30%40%,,600mm1/3,,100200mm,w(FeO)14%,,,,20034PGM20705,3mm85%,,,,FeO11.26000t20028,,,,,,,1FeOTable1Comparisonoffuelsize,FeOandsolidfuelconsumptionbeforeandafterrevamping/%6.0mm6.03.0mm3.01.0mm1.0mmw(FeO)/%/(kgt-1)10.023.029.038.09.013.054.16013.561.025.58.512.052.554:2Table2SizeandchemicalcompositionofBFdustandcoalpowder/%6.0mm6.03.0mm3.01.0mm1.0mm/%w(TFe)w(SiO2)w(CaO)w(MgO)10.023.029.038.0482208.5010.025.065.02412266.03.51.52,,2002922,(412)%,(412)%,015kg,0154%,210%2002,,,,3015,6000t3000t,602[3]:,,,,,2.1,20004200310,123,,,,,:(1),,;3Table3Comparisionofsolidfuelconsumptionbeforeandafteradoptionofdust/(kgt-1)/%/(tm-2h-1)/(kgt-1)60.81801.4850.07154.75831.4920.063(2),;(3),7,37;(4),MT21,;(5)12500mm600mm;3600mm700mm;(6)32.2[3],,,,,,20029,w(SiO2)2002510%610%2003410%412%,(5610015)%,[4]200357194%,20020146%;31216t/(m3d)200201282t/(m3d);419kg/t()200220kg/t()33.131000kW2560kW11000kW25219kW,(40MVA,110/35/6kV),,624h,1300MWh7740,,,,,3.22,12800m3/min346000m3/h,50m3/h,,,,23,123,312m8m2m(122,31),2IS1002802125211kW,93t,80MWh,4360kg/t(),698t/d,1400,465W/kg,,80%,111107W/h,2003810,450,,65802005,12sh29,,,,;,,10%(3mm)5%20,0154kg/t(),45,5.15.1.1RFeOMgO,,4Table4Dissolvingspeedoflimestone,palletizationrate,temperatureoffeedingmaterialsbeforeandafterrecyclinghotwaterfromBFslagpool/(011kgmin-1)(3mm)/%//(kgt-1)0.807075204054.160.887580406053.62:10%15%;,;01104mm:(1);(2);(3),,5.1.2::(1);(2),,;(3)5.1.3,,5.23,,123,12355,:5000t,,123,,63,,,874:5123Table5CharacteristicsofsinteringmachineNo.1,No.2andNo.3/(td-1)/%/km/(t-1d-1)122200,100.51331150,151.5106Table6Technicalindexesandenergyconsumptionofsintering/(tm-2h-1)R/w(SiO2)/%w(TFe)/%/(kgt-1)/(m3t-1)/(kWh-1t-1)/(kgt-1)20011.4071.90.15.06.0530.562.766.343.466.8520021.4822.10.14.55.0550.558.863.042.563.5820031.6562.40.14.04.2560.554.459.141.862.12620022003()1,,(1)1115,(25050),30%;(2),2,,,,,,,,(3)300m200m,,,,7,200165185kg/t200362112kg/t,5166%,2002(6710kg/t)4188kg/t120022003()Fig.1Tendencyofsinteringtechnicalindexesfrom2000to2003(permonth):[1].[J].,2003,38(5):61266.(WANGWei2xing.TechnicalProgressChineseIronmaking[J].IronandSteel,2003,38(5):61266.)[2],.[J].,1996,31(10):125.(SHANJi2guo,PANZuo2sheng.StudyonMini2pal2letizedSinteringProcessandItsIndustrialApplication[J].IronandSteel,1996,31(10):125).[3],.[J].,2002,27(6):8210.(YINZi2wei,JIANGMao2fa.LowSiO2SinteringTechnique[J].SinteringandPelletizing,2002,27(6):8210.)[4],.[A].[C].:,2003.68270.(HANRui2shi,YANYu2xin.LowSiO2SinteringProductionPracticeandtheNewThoughtsa2boutSeveralProblems[A].TheThesisCollectionoftheEighthNationsBlastFurnaceMaterialAcademicConference[C].Beijing:MetallurgicalIndustryPress,2003.68270.)97