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1、BasedonneuralnetworkofcoalspontaneouscombustiontimecomputerpredictionalgorithmAbstract:Keywords:1IntroductionCoalspontaneouscombustiontimereferstoacertaininitialtemperaturecoalfromnaturaloxidationofignitiontemperatureuntilitreachesthetime.Coalspontaneousc
2、ombustiontimeandcoalphysicalandchemicalproperties,oxygen,heatdissipation,coalgranularity,pilingclose-graineddegreeandotherrelevant,butinthegivenconditions,spontaneouscombustiontimeisadefinitevalue.Coalspontaneouscombustiontimecurrentlyonlyinthesetstandard
3、oxygenandheatconditionconductsimulationexperiment,theexperimentaldeterminationgetcoalexperimentalspontaneouscombustiontimeaccuratetoIdfire,canmeetthepracticalneeds,butexperimentswithalongcycle,experimentalhighcost.Thi'oughchromatographicanalysisdeterminat
4、ionofoxygencoalsamplephysicaladsorptionability,usingTGAandDSCexperimentalstudyintheprocessofcoaloxidationweightchangeandenergychanges,USEStheadiabaticheatingexperimentalresearchprogramexperimentorcoalconsumptionofoxygenpropertytowaittoalsocanbeanalyzedcoa
5、lspontaneouscombustionsex,butthesemethodsonlycommonlyqualitativegetcoalcombustionsexofrelativestrengthorwiderrange(suchasangryperiod1〜3months,3〜6months,etc.),andcan*tmeettheneedsofcoalspontaneouscombustioncontrol.XuJingcai,zhangXinhaietc(2000)凶thinkcoalsu
6、rfacemolecularexists7kindsofactivestructureisunderlowtemperatureandoxygenproduceschemicalreaction,accordingtothesubjectofcoalsurfaceactivitystructureandoxygencompositeprocesseverystepreactionchemicalbondscanchange,calculatecoalforoxygenchemicaladsorptionh
7、eatforthinkchemicaladsoiptionheat^u-58.8kJ/mol;averagethermalofcoaloxygencompositeproduceCOis^HC()=311.9kJ/mol;averagethermal-effectofproducingCO2isA//cza=446.7kJ/mol.Throughtheprogramtemperaturemeasuredindifferenttemperaturecoaloxygenconsumptionrate,ther
8、ateofproducingCOandCO2.AssumingcoaloxygenconsumptionofoxygencompositeallintoCOandCO2.bothquantityandtheiractualdemand,itisdirectlyproportionaltotheoxygenconsumptionrate,accordingtoCOandCO2generatedrate,cancalculatec