低品位含鈦磁鐵礦的選礦工藝及分選機理研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文低品位含鈦磁鐵礦的選礦工藝及分選機理研究姓名：袁武譜申請學(xué)位級別：碩士專業(yè)：礦物加工工程指導(dǎo)教師：葛英勇20081101武漢理一(人學(xué)碩士學(xué)像論文AbstractChina’Sironoreresourceischaracterizedbyseveraldisadvantages，suchas：lowgrade，finecompositemineralparticlesandcomplexmineralspeci

2、es，makeitverydifficulttoprocessAtpresent，highqualityironoreisbecominglessandlessaseriousshortageofdomesticironoreresourceappears，andChina’Sironorerelieshardlyonimport，SOtheresearchonprocessandseparationmechanismoflowgrad

3、etitanicmagnetiteinwhichTFegradebetween15％20％，hasagreatsignificanceThispaperisbasedontheitonorefromSuiZhou，HubeiProvinceThisorehasaverycomplexcomposition，containingTFe16鶘％、砭02328％。ThemajormineralsofSuiZhouironorearetitan

4、icmagnetite、ilmenite、hematiteandlimoniteThemainganguemineralsaretitaniferousaugite，hornblende，andothersilicateminerals。Inthispaper，flowsheetthatconsistofstagegrinding—stagemagneticseparationflotation—flotationtailingsre—

5、magneticwasadopted，accordingtothisflowsheetgoodindexesofconcentrationTFe6031％，Ti02506％，and5133％ironrecoverywereachievedResearchshowsthatthestrongmagneticmineraltitanicmagnetitehasaverygoodrecovery，Howevermineralslikeilme

6、nite、km鑫熏i耄eandlimonitecannotberecoveredThisismainlyduetothefinetitaniferousaugiteandfinemagnetiteparticlesinthegangue，whichmaketheganguemagneticMagneticseparationcontainsgrindingtest、magneticfieldstrengthtestandflowshee

7、tstructuretestThestagegrinding——stagemagneticseparationflowsheetWasfinallyfixedonThisflowsheetcontainstwogrindingprocessesandthreemagneticseparationprocesses，andcouldobtainagoodresultas：TFe5620％，recovery55∞％Cationreverse

8、flotationandanionreverseflotationwerebothusedtoflotatesilicatemineralsfrommagneticconcentrationSuitableflotationflowsheetandbestreagentdosageweredeterminedbytestsTheflowsheetcontainsaroughflotation，asweepfotation，theswee