西山礦區(qū)粗煤泥分選效果試驗研究.pdf

1、安徽理工大學碩士學位論文西山礦區(qū)粗煤泥分選效果試驗研究姓名：郜超申請學位級別：碩士專業(yè)：礦物加工工程指導教師：范肖南20110528AbstractInrecentyears，ourcoalpreparationtechnologyhasdevelopedrapidlybasicallyformedthematuretechnologyusingdensemediumhydrocyclonetoseparatelumpcoalandus

2、ingflotationtoseparateslimeWiththedensemediumhydrocyclonekeepingdevelopingtolarge—scale，itslowerlimitsconstantlyrisingThe嘶deuseofVortexofmicro—bubbleflotationcolumn、ⅣimmoreselectiveflotationmakeitsupperlimitdropInthiscaS

3、e，thecoarseslimebetweenthelowlimitofthedensemediumhydrocycloneandtheupperlimitofflotationcannotbeseparatedeffectivelyHowevertheseparationofcoarseslimeinthissizerangeistheweakpointofcoalpreparationtechnologyLackofseparati

4、onequipmentswimllighaccuracyseriouslyharmedthedevelopmentofcoalpreparationtechnologyandithasbecomethebottleneckproblemofensuringproductqualityandimprovingeconomicbenefitincoalpreparationplantIthassignificantmeaningofredu

5、cingthepollutiontocleancoalandensuringthemaximizeofwholegrainsizecoalqualityandyieldAtpresentascoarseslimegravityseparationequipmentspiralseparatorwatermediumhydrocycloneandTBSarewidelyusedincoalpreparationtechnologyAlth

6、ough，theseequipmentsandcorrespondingtechnologieshavetheirdisadvantagesandcertainapplicationsIthasbigcontroversyovertheoptionofcoarseslimeseparationequipmentstobeallocatedwimexistingadvancedequipmentsInthesamefeed，spirals

7、eparatorwatermediumhydroeyclone，slurryheavymediumcyclone，andTBSwerecomparedandanalysisedDuringtheoptimizationofdatawashabilitycurvesweredrawnbydetailingthefloatsinktestdataThecleancoalyield，performancesandevaluationindex

8、EpandIvalueandseparationdensitieswerecalculatedbymathematicalmethodTheexperientialmodeofpartitioncurvewasdrawnbysinglemachinecheckdataAccordingtothetranslationtheoryofpartitioncurve，wecanmakeittruetopredictthecleancoalyi

9、eldinthesameashandcompared、柝mtheyieldindifferentgranularitiesTheresultsofthissubjectCanbedirectlyusedtoguidetheproduction、骯msignificantmeaningFigure25；table75；refefence51Keywords：coarseslime；coml陽rison；separationsystem；a