转炉尘泥分选利用及吸附铜离子的研究

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1、武汉理工大学硕士学位论文转炉尘泥分选利用及吸附铜离子的研究姓名：李明辉申请学位级别：硕士专业：矿物加工工程指导教师：罗立群20100501武汉理f：大学硕十学位论文AbstractConvertersludgeanddustisoneoftheauxiliaryproductsofsteelmakingwiththeconverter．Thereare7,000，000--9，500，000tonsbeproducedinChinaeveryyear．Theseyears，mostoftheconvertersludgeanddustareputintothera

2、wmaterialssinteredasmaterialsbecauseofthehighFecontent．Andothersarereusedtothesteelmakingflowbydirectironprocessorsteelmakingprocess．Intheseways，theuseratioishigh，butmanyproblemsareexisted．Forexamples，itreducestheventingqualityofmixedburdenmoreandmorenonferrousmetalsharmforlifeoftheex

3、perimentsandetc．Consequently,itisveryimportanttoexploreawayofutilizingconvertersludgeanddust，inwhichtheuseratioandeconomiceffectivenessarebothimproved．Besidesmuchlessgarbageisproduced．TheconvertersludgeanddustusedintheinvestigationistakenfromaSteelandIronWorksinHubeiprovince．Theyarean

4、alyzedbasicphysicalpropertiesinlabenvironment．Exploreddifferentwaystoseparatetheconvertersludgeanddust’Susefulcompositionsandrecyclethembydifferentmethodsforimprovingtheworthofrecoveryandutilizationoftheconvertsludgeanddust．Throughtheresearchofthesurfaceobservationandthebasicphysicalp

5、ropertyofconvertersludgeanddustsample，ithasmanycharacteristics．Suchasfinegranularity,tightcombination，bigratiosurfacearea．TheresultsofexperimentsarethatthecontentofTFeis45．60％，thecontentofMFeis23．02％，thecontentofFeOis57．10％，thestackdensityis0．828e／mEandthepureproportionis3．62g／cm’．The

6、distributionofgranularityofsampleCanbeillustratedasfollows，+0．074ITlnlaccountsfi)r38．90％，一0．074mm+0．044lnnlaccountsfor10．59％，一0．044mmaccountsfor50．51％．Firstlythedustsareseparatedbyconcentrationtechnology(mostlymagneticseparation)inthisexperiment．AlloftheseparateresultsofLaboratorymagn

7、etictube，WHIMSandhighintensitymagneticseparationaregot．Theexperimenteffectofwhipanddemagnetizationtomagneticseparationisbalanced．TheFefinalcontentoftheconcentratereachesto78．33％．Thentheconcentrateisusedtomakingtheironoxidereds．Thetargetsoftheironoxideredsaretestedcarefully．Thedegreeof

8、purit