皮帶輸煤系統(tǒng)轉(zhuǎn)載點(diǎn)粉塵析出逸散規(guī)律及數(shù)值模擬研究.pdf

1、遼寧工程技術(shù)大學(xué)博士學(xué)位論文皮帶輸煤系統(tǒng)轉(zhuǎn)載點(diǎn)粉塵析出逸散規(guī)律及數(shù)值模擬研究姓名：賈惠艷申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：采礦工程指導(dǎo)教師：馬云東20070501遼寧T程技術(shù)人學(xué)博1：學(xué)位論文AbstractThispaperconcernsapanof‘‘BasicResearchontheLawofDust’SPrecipitationandMovementandCon仃olTechniqueintheCoalConveyerBeltSyst

2、em”fundedbynationalnaturalsciencefund(No50674052)，andisthemainresearchcontentsofdustcomprehensiveadmiuistefingprojectforShenhuazhunnengCorporationCoaldressingPlantThecoalconveyerbeltsystemisthemainsectionofdustgeneration

3、BecauseofhavingcertaindropheightamassoffugitivedustiscreatedinthetransperSite，resultingintremendousincreaseofdustdensitywhichcomposesofmainpollutingSOUre圯oftheworkshopAtpresent，dustcontroltechnologyoftranspersiteismainly

4、appliedtodustremovalanddustoutletandSOonindomesticandoverseas，butthereisalackoftheoptimumdesignofoveralltechnologyschemeofdustcontrolandpreventionandthechoiceofkeyshapingequipment，andevenmorelackofthestudyonmechanismofdu

5、stgenerationandlawofdustdissipationThereforeitisverydifficulttoachieveidealeffectofdustgovernmentAtpresent，thestudyontranspersiteofcoalconveyerbeltsystemiscomparativelyweakandtranspersiteisregardedastheresearchobjectinth

6、ispaperBythemethodofexperimenttesting，theoreticalanalysisandnumericalsimulationthispaperstudiescoaldustprecipitationsubsidinganddistributionlawofcoaldustinthetranspersiteondifferentconditionsApplyingl船ctionairflowofbelt，

7、inducingairflowandshearairflowtheories，themechanismofdustgenerationissystematicallyanalyzedWedrewtheconclusionthatdustoftranspersiteisgeneratedbydustingfunctionofinducingairflowdustingfunctionofshearairflowandcomprehensi

8、vedustingfunctionBasedonanalyzingthecharacteristicsofdustparticlemovement，thispaperputsforwardthedustcleaningschemewithairtightdust—preventionsystemandairtightnegativepressuredustcontrolsystemtocontroldustofthetranspersi