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1、■■武漢理工大學(xué)碩jt學(xué)位論文堇青石粉添加量35wt%,l洲03添加量5wt%,硼熔塊添加量10w't%)鐵尾礦質(zhì)的最優(yōu)封裝劑配方組成為:鐵尾礦基材添加量80wt%,硼熔塊添加量20wt%。通過SEM測試,可知最優(yōu)配方的封裝劑與基材的結(jié)合性良好,能夠緊密地結(jié)合在一起。通過對NaC!和MgCl2進(jìn)行包裹,并對包裹的球體進(jìn)行SEM測試可知,赤泥質(zhì)陶瓷蓄熱球包裹MgCl2的效果良好,MgCl2與基材的相容性良好:而鐵尾礦制陶瓷蓄熱球包裹NaCl效果良好,NaCi與基材的相容性良好。關(guān)鍵詞:赤泥;鐵尾礦;太陽能熱發(fā)電;陶瓷蓄熱材料;強(qiáng)度:抗熱震性;性
2、能與微觀結(jié)構(gòu):封裝劑:PCM;結(jié)合性;相容性III’'■1■武漢理工大學(xué)碩士學(xué)位論文AbstractRedmudisthesolidwasteresidualwhenaluminaiSproducedusingbauxite.Asthebigaluminaproducingcountry,Chineseredmudoutputismorethanonethirdofglobaloutputandthatbringsforthhugeenvironmentalpollutionandpotentialsafetyproblems.Atthesa
3、metime,asthebigsteelproducingcountry,kontailingsproducedthroughsteel-makinghavealsobecometheimportantpollutionsource,accordingtoincompletelystatistics,thecumulativestockpiledirontailingscomeupto2x109tinchina.FollowingwithChineseeconomydevelopingfast,thedemandsforenergyisinc
4、reasingmoreandmore,butmorethan70percentsofenergyareprovidedbycoal.Asthelimitedcoalconsumedcontinuously,searchingfornewenergysuccedaneumbecomestheimportantpo缸toeverycountries,SOthecleanandunlimitedsolarenergybecomesthefocusofworldattentions.Inordertodevelopredmudandirontaili
5、ngenvironmentallyfriendlyandtakingtheintenseenergyshortagesituationintoconsideration,inthisstudysolarenergythermalstoragematerialsaremadeintherawmaterialsofredmudandirontailing.Inthispaper'atfirstShandongbayerredmud,Shandongshale,Shandongtalc,Shandongpotassiumfeldspar,Linzh
6、oualbite,Shandongquartzwereusedasthemainrawmaterials,preparedtheK-Al—Sisystemsolarenergythermalstorageceramicmaterials.UsingXRD(X—raydiffraction),SEM(scanningelectronmicroscope)andothermodemanalysistechniquestestedthemicrostructureandpropertiesofPseries.Theresultsindicateth
7、atitispossibletoUSeredmudasmainrawmaterialtoproducethesolarenergythermalstorageceramicmaterials.ThepropertiesofP-4samplefiredat1080℃Wasbetter,theporosityWas7.82%,thewaterabsorptionW&S3.07%,thebulkdensityWas2.559·cmq,thebendingstrengthWas46.66MPa,thesamplewasn’tcrackedbyther
8、malshockresistance(roomtemperature-800℃。air-cooled)after30times,andflexuralstrengt