氣固提升管充分發(fā)展段的顆粒濃度與預(yù)測(cè)

1、四川大學(xué)碩士學(xué)位論文氣固提升管充分發(fā)展段的顆粒濃度與預(yù)測(cè)姓名：余江濤申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：化工過(guò)程機(jī)械指導(dǎo)教師：黃衛(wèi)星20060501四川大學(xué)碩士學(xué)位論文BehaviorsandPredictionsofSolidsHoldupsinFullyDevelopedRegionofGasSolidCFBRiserSpecialty：ChemicalProcessingMachineryStudent：YuJiangtaoSuperviso

2、r：ProfHuangWeixingTheknowledgeofparticleflowbehaviorsandsolidsholdupdistributionsinCFBriserisveryimportantforthefurtherstudiesofheat—masstransferproblemsandtheengineeringdesignofCFBequipmentBasedonthesystematicmeasuremen

3、tsofpressuregradientsandlocalsolidsholdupsina16mhi【ghCFBfiser’undertheoperationconditionsofsuperficialgasvelocity％=20—103m／sandsolidscirculatingrateG54230kg／(mLs)，theaveragedsolidsholdupdistributionandrelatedproblemswere

4、investigatedinthepaperByanalysisofsolidsholdupdistributionsandrelatedoperationconditionsthevariationregularitiesofsolidsholdupwithoperationparametersinfullydevelopedsectionWeredelineatedmoreclearlyandanewcorrelationwasde

5、velopedforsolidsholdupinfullydevelopedsectionofCFBriserThisnewcorrelationisingoodagreementwiththeexperimentaldataandcorrespondingtodifferentsuperficialgasvelocitymakesthepredicatedresultsofotherauthorsinaccordanceexplain

6、ingthedifferencesexistingamongthemThestudiespointoutthatfourimportantfactors(thedragforcebetweengasandparticles，thepanicledensitytheriserheightandthestaticpressuresuppliedbysuspensionsinstoragetank)controlthemaximumsofid

7、scirculatingratethattheCFBunitcanachieveatagiversuperficialgasvelocityThepaperfingersthat，fromtheviewofenergyandpressurebalances，atlowgasvelocities，themaximumsolidscirculatingrateisdeterminedbythebalancebetweentheenergyc