闪速炉余热锅炉多场耦合数值模拟及结构优化

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1、ABSTRACTThewasteheatboilerforcoppernashsmeIti“gisakeyfacili可int11esmeltingPmcess，andita矗色ctsdirectlythenomlaloperationofnashsmel“ngfL

2、mace．Som。problemssuchasslaggi“gaIldabrasionoccurusua¨yjnwasteheacboiJer丁herefo忙，￡henume打cajsimuIadonwasappliedtomodelthet}lennalprocessandtoanalyzeth

3、ereasonsfortheproblemsint

4、lewasteheat，whichwillprovidetheoreticalguid，mceforthestnlcmraIoDtimization丁bscudyrbe小e舯a】p!Dcessin

5、bewas!ebeatboj】e‘slar】dard女一￡model，DOradiationmodelanddiscretephasemodelwerechosentoperfjrmgas—solidcouplingsimulationThemainmissionandcOnclusionsareasfbllows

6、：(1)withrespecttothedesign吼nJcnjre，thenowandheattransferDmcessinthewasteheatboilerweresimulated．a11dnow行eld，temperatureneldandpa^icle仃aceswereanalyzed．Therelativee巾3rofpredictedteInperaturesislessto10％，comparedwithtestValuesintIlemnningdevices，whichvalidatesthereliabilityofthemodel．

7、(2)TheresultsoftemperanJreandnowneldinabovesimulationshow山attIlenuenowsdirectlytowardthetopoftheboilerduet0thest兀lctureofthenueduct．Thesmokea11ddustwitllhightemperamreisinmoltenstateTheslagwillbefo兀TIediftheycontactthewaterwallwithlowtemperatLlreTheslagpositionisaccordantwiththatinr

8、ealoDeration(3)ThetransferprocesswassimulatedfortIIetwoimprovedschemespresentedbyt11eenterp^se，andcheiradvantagesaIlddisadvantagesoftlletwoschemeswerecomparedThe前r虬onewaschosenconside^ngt11erequircmentoft11eboiIerPowertomeettheintensi母i“gproductionof日ashsmelting．nepositionsofsulpha眦

9、ionairnodeswereoptimized．(4)Thenrstba棚eposition，t11esecondbafnoPositlonandtheexcensjonleng出of出eho—zon缸jentraflceⅥ℃reopt；mjzedbyunjf。rmdesjgnmethodTheregressionequation，which拍止est

10、leoutlettemperatIlreoftlleradiatjonchamberasdependentvalue，wasesIablishedlI中南大学硕±≠Ⅱ论Zaccordingtostepwise

11、regressionanal)slsFor山egivenconditions，theoptimalparametersarethatthedistancebeMeenthebaffle1a11dthe疳ontwaIlis12m．t}ledistancebetweent}leba用e2andthe仔ontwallis32m．andtheextensionleng山aboutthehodzontalentranceis2m．KEYWORDS：coppernashsmelti”＆wa毗eheatboiler，nume^calsimulatjon，unifonndes

12、ign巾ethod，optimize中