华亭煤自燃特性的实验研究

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1、Subject:ResearchontheExperimentalofSpontaneousCombustionCharacteristicsofHuatingCoalSpecialty:SafetyTechnologyandEngineeringName:MengLiHua(Signature)_________________Instructor:DengJun(Signature)_________________AbstractThespontaneouscombustionofcoalcomesintobeingtheheato

2、fcoaloxidationundertheaptitudeoxygenandheatpreservationconditions.SpontaneouscombustionofcoalissueisoneofthemajordisastersinsafeproductionofChina'scoalmine.Andthespontaneouscombustionperiodisthemostdirectandmostextensiveusedkeyparameter,However,wecannotmakeadetaileddescri

3、ptionofthespontaneouscombustionofcoalunderpracticalconditions.Soitisimportantsignificationtostudytheconditionsofspontaneouscombustion,theimpactfactorsofthedevelopmentprocess,usingtheappropriatemethodtostudythecoaloxidationundertheaptitudeoxygenandbuiltthepredictiontheoryo

4、fcoalspontaneouscombustion.Themethodofthetheoryandtheexperimentsisadoptedinthispaper.TaketheHuatingcoaltothestudyobject,analyzedthemaininfluencefactorstocoalspontaneousconbustionperiodbydifferentexerimentsfocusingonmicrocosmicactivegroupsandmicrocrystallineparametersandma

5、croscopicalcharacteristicparameters,characteristictemperaturesofcoal.FirstlythemicrocrystallineparametersandcoalmolecularstructurevariationinthelowtemperatureoxidationprocessbyXRDraydiffractionandinfraredspectroscopy.Second,BasedonthethermogravitymetreyexperimentsofHuatin

6、gminecoalsample,thecuresofweightlessnessandweightlessnessspeedareanalyzed,andcriticaltemperatureandtheignitiontemperaturepointsofHuatingcoalaregotfoundineachgroupofcurves,andanalysisofitscauses.Throughtheanalysisofthesimulationexperiment,analysisoftheexperimentshortestign

7、itionperiodofHuatingcoalspontaneouscombustionandthelimitparameter,thelowerlimitofoxygenconcentration,theupperlimitofairleakageintensityandminimumthicknessoffloatingcoal.Ithastheimportancetheoreticalsignificancetoundersandthespontaneouscombustiondeeply.keywords:cpontaneous

8、combustionofcoal；XRDraydiffraction；thermogravimetricexperiment；characteristictemperature；spontan