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1、第25卷第6期礦冶Vo1.25,No.62016年12月MINING&METALLURGYDecember2016文章編號:1005-7854(2016)06—0045-06鐵尾礦和廢石制備建筑外墻防火保溫陶瓷材料楊航申士富劉海營葉力佳駱有發(fā)王金玲(北京礦冶研究總院礦物加工科學與技術國家重點實驗室,北京100160)摘要:利用河北某鐵尾礦和廢石為原料制備了建筑外墻防火陶瓷保溫材料。對鐵尾礦和廢石進行了ICP-AES分析、化學成分分析、X射線衍射物相分析、TG—DSC熱分析和放射性檢測。在此基礎上研究了原料配比、原料粉磨細度、發(fā)
2、泡劑用量、發(fā)泡劑粒度、燒成制度與建筑外墻陶瓷保溫材料性能之間的關系。結(jié)果表明,以放射性合格的鐵尾礦和廢石制備建筑外墻防火陶瓷保溫材料技術可行。合適的物料配比為鐵尾礦用量為40%一55%,廢石用量為45%一60%,發(fā)泡劑外摻量為0.5%;原料粉磨細度控制在7.45m(D50)左右;發(fā)泡劑粉磨細度為0.037mm(D90);燒成溫度1160aC,燒成時間60min;制備的建筑外墻防火陶瓷保溫材料干密度為350kg/11,吸水率為0.48%,導熱系數(shù)為0.09W/(In·K),抗壓強度為2.20MPa,抗折強度為1.46MPa,防火
3、等級為A級。關鍵詞:鐵尾礦;防火保溫陶瓷;燒成中圖分類號:X758文獻標志碼:Adoi:10.3969/j.issn.1005-7854.2016.06.010FIREINSULAT10NFACADESCERAMICMATERIALPREPAREDBYIRON—ORETAILINGSANDWASTEROCKYANGHangSHENShi-fuLIUHai-yingYELi-fiaLUOrou-faWANGJin-·ling(StateKeyLaboratoryofMineralProcessing,BeijingGeneral
4、ResearchInstituteofMiningandMetallurgy,Beng100160,China)ABSTRACT:Experimentalstudywascarriedouttoexplorethepreparationoffireinsulationceramicfacadesmate-rialpreparedbyiron—oretailingsandwasterock.ICP—AESanalysis,chemicalanalysis,X—raydiffractionanalysis,TG—DSCtherma
5、lanalysisandradioactivitydetectionofirontailingsandwasterockwereconducted.Therelation.shipbetweenmaterialpropertiesandthepreparationofratioofrawmaterials,rawmaterialgrindingfineness,foa-mingagent,particlesizeoffoamingagent,firingsystemwerestudied.Theresultsshowthati
6、tistechnologicallyfeasibletopreparebuildingfacadesfireinsulationceramicmaterialsqualifiedwithradioactiveiron—oretailingsandwasterock.Suitablematerialsratioofiron—oretailingsis40%to55%andfeldsparamount45%to60%.Thea—mountofblowingagentmixedwas0.5%,therawmaterialgrindi
7、ngfinenesscontrolledataround7.45m(D50),thefoamingagentgrindingfineness0.037mm.thesinteringtemperature1160℃andthesinteringtime60min.Thedrydensityofpreparedmaterialwas350kg/m.Waterabsorptionwas0.48%.Thethermalconductivitywas0.09W/(m。K).Thecompressivestrengthwas4.20MPa
8、,F(xiàn)lexuralstrengthwas1.46MPa.Fire-prooflevelwasA.KEYWoRDS:iron—oretailings:fireinsulationfacadesceramicmateria1:sintering目前我國累計產(chǎn)生尾礦100億t以上,