LF炉精炼终点成分预报模型开发

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1、东北大学硕士学位论文LF炉精炼终点成分预报模型开发姓名：李大亮申请学位级别：硕士专业：钢铁冶金指导教师：姜周华;战东平20050101东北大学硕士学位论文摘要时间，降低能耗，优化冶炼操作。此外，本模型的合金加入量计算的准确性也比较高，根据钢水的初始成分和钢种的冶炼标准，可以给出比较精确的合金加入量，有利于准确控制成分，从而节省合金加入量，节约开支。因此本模型的实现对现场应用具有一定的指导意义和应用价值。关键词钢包炉精炼成分预报成分微调冶金模型III东北大学硕士学位论文Developmentoft

2、hePredictionModeltotheEnd—pointCompositionofLadleFurnaceAbstractLadleFurnaceisakindofsecondaryrefiningequipment，whichhastheexcellentsynthesizedfunctions，andhasgotthewidelyapplicationintheproduction．ThemetallurgicalapplicationofLFmodelhasmanyadvantage

3、s，suchasreducingthepower，theelectrode，argonandalloysconsumption，etc．ItalsocRnimprovethequalityoftheproducts．Withtheapplicationsofautomaticcontroltechniqueinthesleelindustry,thefunctionofLFbecomesmoreandmoreimportantintheshortprocessofEAF·-LF·CC-CR．Th

4、erefore，thecompositioncontrolofLFbecomesthekeyoftheoperatingintheshortprocess．Now，thecompositionofmoltensteelarecontrolledbyoperatorsintheLFrefiningprocessofChina．whichcaIl’tadaptthedemandsofthequicklyrhythmofmodernizationproduceandtheprecisecontrolo

5、ftheproductquantity．Thosedevelopedmodelswiththelowprecisiondon’tbeusedbytheworkers，andtheoperationstillisbedonestillaccordingtotheexperience．Forthisl℃ason，ithasbecomeaveryimportantsubjectofthedevelopmentontheend-pointcompositionpredictionforLF．Basedo

6、nthe300tLFatShanghaiBanSteel，theresearchWaSdoneaboutthemicro-adjustingcompositionsintheLFprocess．AmodelWasbuiltofthemicro—adjustingcompositionsandthecompositionpredictionbyusingreferenceheatsmethod．VisualBasic6．0WOSusedasthetoolsofsoftwaredevelopment

7、，andtheinput，outputandsavingofthedatawereaccomplishedbyMicrosoftAccess2003，theapplicationsoftwarewasalsoprogrammed．Theclassification，choosingandanalysisofthedataweredone，whichincludingsteeltypes，steelweight,compositionsandtemperatureofmoltensteel，qua

8、ntity,kindsand—IV—东北大学硕士学位论文gradeofalloysandslags，voltageandcurrentofelectrodes，stateofladle，conditionofAtblowingusingFuzzymodelthroughtheresearchofmechanicsandanalysisofalloyingtoLFoperation．Thefivemainfactorswerechosenwhichincludingcompositionsofmo