高炉渣制备渣棉试验研究_周君

66201412MultipurposeUtilizationofMineralＲesourcesNo．6Dec．20142014－07－182014－09－122012BAE09B022012BAE09B03512742701988－。063009。Mk=1.20.35MPa1350℃。。doi10.3969/j．issn．1000－6532.2014.06.018TD989A1000－6532201406－0071－05。lt300～350kg1t1675MJ57kg。46944t14000t、、100%14000t840t1－3。4。1。。。、、、。2.11。1%Table1ChemicalcompositionofblastfurnaceslagofsomeplantsinTangshanSiO2CaOMgOAl2O3Fe2O3MnOS34.1033.629.9215.311.570.980.581CaO、Al2O3、SiO25－6。78%20147、。、、。2.2。、、8。、、、。2.39。1。0.2MPa0.8～1.2t。2H2SSOx。3。1t1600～1800MJ55～61kg。。1400℃。、1500t。22.1。。。2。2/%Table2ChemicalcompositionofblastfurnaceslagandirontailingsSiO2CaOMgOAl2O3TiO2K2ONa2OTFe32.6036.438.7215.441.550.710.550.6267.412.782.6012.130.314.252.894.182.22.2.130kgMK=1.2。92.2%7.8%。2.2.21500℃0.35MPa21350℃。1Fig．1BlastFurnaceslagwoolfiber2.32.3.11GB/T5480－2008《－7.6》。100g5min0.1mm。1·27·6ρ=5．66×103h1ρ—kg/m35.66×103—g/m2h—mm。136kg/m3GB/T5480－2008。210。。GB/T5480－2008《－9》。。550g2Sh=mm0×100%2Sh—%m—gm0—g。≥0.212mm3.2%GB/T5480－2008。2.3.2GB/T5480－2008100。SEM。2SEMFig．2SurfaceSEManalysisofBlastfurnaceslagwoolfiber6.2μmGB/T5480－2008。2、3。。。3SEMFig．3SEManalysisofBlastfurnaceslagwoolfibernick2.3.3X-。311。3。Mk=wSiO2+wAl2O3wCaO+wMgO3Mk—wSiO2—%wAl2O3—%wCaO—%wMgO—%。3/%Table3ChemicalcompositionblastfurnaceslagfiberinlaboratorySiO2CaOAl2O3MgOMk36.0033.4415.797.517.261.233Mk=1.23、、。。。2.3.4。·37·2014。0.1mol/L0.2mol/L0.3mol/L0.5mol/L。10gm11h0．074mm3m24。4。=m1－m2m1×100%44Fig．4Theweightlossrateofdifferentimpregnatingsolutionwithdifferentconcentrationoffiberaftereroded4。NaOH0.1mol/L0.3mol/L0.5mol/L。HCl0.5mol/L。5～60.5mol/LNaOH。0.5mol/LHCl。12。。ab50.5mol/LNaOHa、HClbSEMFig．5SEMoffibersin0.5mol/LNaOHaandHClblowpowerab60.5mol/LNaOHa、HClbSEMFig．6SEMoffibersin0.5mol/LNaOHaandHCbhighpower31、。。2、、。92.2%7.8%MK=1.20.35MPa·47·6SiO2。3136kg/m3≥0.212mm3.2%6.2μmGB/T5480－2008。PH〉4、、、、。。1．J．200338－11．2LindB．B．EnvironmentalimpactofferrochromeslaginroadconstructionJ．WasteManagement200121255－264．3．“”J．200879－12．4．－J．2003210－11．5．J．2006921－23．6GIFFOＲDPMGILLOTTJE．Alkali-silicaＲeactionASＲandAlkali-carbonateＲeactionASＲinActivatedBlastFur-naceSlagCementABFSCConcreteJ．CementandCon-creteＲesearch19962621－26．7．J．2002916－19．8．M．1998．9．J．20070654－55．10．J．2010113－15．11．M．2008．1－114．12．J．2010102400－404．ExperimentalＲesearchonPreparationofMineralWoolwithFurnaceSlagZhouJunXingHongweiTianTieleiWuZhijieWuJinhuCollegeofMetallurgyandEnergyofHeibeiPolytechnicUniversityTangshanHebeiChinaAbstractInordertoimprovetheaddingvalueofblastfurnaceslagandrecyclinguseofblastfurnaceslagsensibleheatthepresentprocessingtechnologysituationofblastfurnaceslagwereintroducedandsomedrawbacksintheprocesswereexpounded．Accordingtothetheoryofrockwoolfibertheconceptofquenchedandtemperedblastfur-naceslagforpreparationslagwoolpipeinsulationmaterialswasputforwardverifyingtheblastfurnaceslagfiberformingprocessusinghighspeedinjectionmethod．ItisconcludedwhentheaciditycoefficientisMk=1.2andtheoutletpressureis0.35MPatheslagoutlettemperatureis1350℃thefiberhasbetterphysicalandchemicalprop-erties．Finallythefuturemarketprospectanddevelopmentnewtrendofthepipelineinsulationmaterialsarepredic-ted．KeywordsBlastfurnaceslagSlagwoolComprehensiveutilization·57·