the Chemical Reaction Kinetics of Coal Combustion by Thermogravimetry Analysis 分析和总结分析和总结.docx

ChemicalReactionKineticsofCoalCombustionInvestigatedbyThermogravimentric

Analysis

GuopingJiang;XiaoSanxia

SchoolofEngineering,2011Highperformanceconcretecoordinationcenterinfujianprovince，FujianJiangxiaUniversity,Fuzhou,Fujian350108,China

Abstract:Acombustionmodelconnectedburnout withchemicaldynamicsparametersandquantitative study on it are rarely reported. Pulverized coal combustion reaction dynamicsparametersareoneofnecessaryimportantdatumofthermalcalculationoncombustionequipmentbasedonpulverizedcoalfuelandbasictheorystudyonpulverizedcoalparticlecombustioncharacteristics.Withthedevelopmentofcomputerscience,mathematicalmodelofpulverizedcoalcombustionisbeingappliedtoboilerdesignandoperationlittlebylittle.Thisisrequiredtocalculatepulverizedcoalcombustionprocessasaccuratelyaspossible,importantinitialdatainthecalculationisreactiondynamicsparameters,itquantitativelydescribesreactionabilityofcoalandgiveschangeruleofreactionabilityofdifferentcoals withtemperature. AccordingtoneedofHuNanHua-YinZhuZhoupowerplant’2ndalterationproject,fifteenconventionalcoalsthattheyprovidedandwillburninthepowerplant’Wflamefurnacearestudiedonconventionalindustrialanalysis、element analysis 、actual combustion characteristics and slagging characteristics.Adaptationreactionsofcoalsareanalyzed,coal rangesselectedofbettercombustion effectintheflamefurnaceisgiven.groundisprovidedfordeterminingburningcoals.

Keywords: coal combustion; chemical reaction kinetics; burnout ratio; thermogravimentricanalysis

Introduction

Combustion

Combustionofpulverizedcoaliscomplexanddifficulttoanalyzeandtechniqueofwhichis

immaturesofar.However,nomatterfromtheaspectsofenvironmentalprotection,ortheboileroperation mode of the unit, research of combustion process needs to be strengthened. Thecharac