LF深脫硫渣系的實驗研究.pdf

1、東北大學碩士學位論文LF深脫硫渣系的實驗研究姓名：李平申請學位級別：碩士專業(yè)：鋼鐵冶金指導教師：姜茂發(fā)20050101蔓些查蘭堡主芏堡墮查壘望!!墜曼!ExperimentalStudyonRefiningSlagofDeepDesulfurizationinLadleFurnaceAbstractNowastherequirementincreaseofthesteelwithultralowsulphurcontent，howtod

2、ecreasethesulfurcontentinthesteelisthefocusLFisoneofthemainequipmentswhichcalldecreasesulfurcontenteffectively，andtherefiningslagisanimportantfactorwhichaffectstherefiningefficiencyofLFdirectlyPremeltedslagwasappliedinth

3、eexperimentsTheeffectofW(∽／wM，A1203contentandCaF2contentondesulfurizationratiowasstudiedbyorthogonaldesignmethodFurthermore，山eeffectof∑FeOcontentandslagamountondesulfurizationratiowerealsostudiedAfterthat，theoptimumcompo

4、sitionoftherefiningslagWaSobtainedTheconclusionswereshownasfollows：(1)UndertheexperimentalCOnditions，theinitialsulfurcontentinsteelwasintherangeof38x10s～49x10～thefinalsulfurcontentinsteelwasdecreasedtOtherangeofl4x105331

5、0一，andthedesulfurizationratiowasintherangeofl86％～711％(2)UndertheexperimentalconditionstheinitialoxygencontentinsteelhadimportanteffectondesulfurizationratioWIlentheinitialoxygencontentinsteeldecreasedfrom1510。to310～，thed

6、esulfurizationratioincreasedfrom280％to604％(3)UndertheexperimentalconditiOIlS，when∑FeOcontentWaS05％andMgOcontentWaS9％thedesulfurizationratioincreasedfwsflyandthendecreasedwiththeincreaseofWf∽／W∞D，，A1203contentandCaF2conte

7、ntmdesulfurizationratioachivedthemaximumvaluewhenw(“IwⅫ：L，A120scontentandCaF2contentwere10252815％and900％respectively(4)Undertheexperimentalconditions。thedesulfurizationratioincreasedobviously、vitllthedecreaseof∑FeOconten