生产工况切换下的步进梁加热炉炉温优化方法-研究

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1、万方数据东北大学硕士学位论文摘要．．IV．．万方数据东北大学硕士学位论文AbstractResearchonOptimizationMethodsofFurnaceTemperatureinWalkingBeamReheatingFurnacewithOperatingMode’SSwitchAbstractReheatingfurnaceproductionprocessisthekeyprocessinthesteel’Shotrollingproductionprocess．Fortheaimth

2、atthebilletsinthereheatingfurnacemustsatisfiedtherequirementsoftherollingtechnology,thereheatingfurnaceoperationshouldbeoptimizedthoseset-pointvaluesofthetemperatureofdifferentpartofitrespectivelyandbillets’forwardspeedtomaximizethecapacityofreheatingfur

3、naceundertheconstraintofquality．Thepresentwayofworkisduetotheworkers’experience，andmakesitunabletoprovidetheoptimaloperationvalue．Theobjectiveofthereheatingfurnace’stemperatureoptimizationistorealizethereheatingfurnace’Soptimaloperationbygiventhetemperat

4、ureandwalkingspeed，whichisundertheessentialtechnologiesandtheresourceconstrairits，andtheaspectsoftheoveralloptimization．Reheatingfurnace’Sworkingprocessisslabs’heatingprocess．TheheatingprocessCanbedescribedbynonlinearheattransferpartialdifferentialequati

5、onandpartialdifferentialequation．Therearesomanyuncertaintyfactorssuchastheinitialtemperature，thetypesandspecificationsofthesteels，makesthattheproductprocessexiststronglyuncertaintyanddynamiccharacteristic．Firstly,thispaperanalyzesanddescribestheproductio

6、nprocessandthetemperature’Soptimizationofreheatingfurnace，andthenformulatestheslabs’temperaturemodelwhichisbasedonheatexchangetheorybetweenslabsandfurnace，thesteadystateworkconditionsindexmodelandconstraintsmodelwhicharebasedonthefurnace’Stemperatureopti

7、mizeprobleminthisconditions．Onthebasisofthemethodsofnormalizeandweightingth⋯c．。operationindex，thediscretizationoftheheattransferequation，thispaperdesignstheinterior-pointalgorithmwhichisusedforsolutethetemperatureoptimizationoffurnace．Then，theoptimalasce

8、ndcurvebelongstotheslabsinthefurnaceandthecorrespondingoptimaltemperaturecurvedistributedinthefurnacearegot．Indeed，theoptimaltemperatureforecastingcurvecanbegottoo．While，theoptimizationsettingofthetemperatureinthefurnaceis