燃煤电厂固体废弃物综合利用研究

62`2009``87407``kW`65205``kW`74.60`13.99``t`6.08`SO2``820`kg/m3`1`XRD`SiO2Al6Si2O13CaO200233XuJiangang(ShanghaiOrientalEnviron-IndustryCo.,Ltd.,Shanghai200233)```````AbstractTostudythecementationreactionanditslawsofsolidwastefromcoal-firedpowerplantsundernaturalconditionsforfacilitatingandimprovingresourceutilizationefficiencyaswellasreducingpollutantemissions,fluegasdesulphurisation(FGD)gypsum,flyashandslagweretestedasmainrawmaterialsbyaddingcertainamountoflime,cement,andotheradditives.Throughtheprocessesofproportioning,mixing,maintainingandetc.,cementedmaterialswereprepared,andtheircompressiveresistancewasmeasured.ByusingL9(34)orthogonalexperimentaldesignmethod,thecementationreactionofthreekindsofsolidwastesinthenaturalstatewereinvestigated.TheresultshaveshownthattheoptimalcementingmaterialswerewiththeproportioningofScenarioA2B3C2,i.e.,toobtainthebestcompressiveresistance,theamountofgypsumandflyashwasinaratioof3to7,whilelimepluscementwereaddedto15%andslagto35%.Keywords:Coal-firedpowerplantFluegasdesulphurisation(FGD)gypsumFlyashSlagCementationreactionComprehensiveutilisationOrthogonaltestCompressiveresistance1963`1989`63`10.1`45`2`425``20`mm20`mm40`mm24h``GB/T176711999`+`3``L934[1]`3`44.1``R``4``7d`/++`A/CB+`28d`+/`B+A/C4.2``1`3``7`d``A3B3C3/`46+`15`40`28`d``A2B3C2/`37+`15`35[2]`OH``Ca2+CaOH2=2OH+Ca2+OH``SiOAlO`CaSO4Ca2+``SiOAlO`xCaOSiO2yH2O`mCaO2.710.720.5831.660.640.050.1342.540.680.0195SiO2Al2O3Fe2O3CaOMgONa2OK2OSO3SO2Cl58.7624.851.041.661.081.641.291.98SiO2Al2O3Fe2O3CaOMgONa2OK2OC303540123A/283746B+5101564123456789K1K2K3k1k2k3RK1K2K3k1k2k3RA11122233329.81137.77038.3709.93712.59012.7902.850A366.00078.96977.90122.00026.32325.9674.323A2B12312312332.82036.38136.75010.94012.12712.2501.310B366.17174.40082.29922.05724.80027.4335.376B3C12323131233.69934.23038.01911.23311.41012.6731.440C376.92977.61068.33125.64325.87022.7773.093C2D12331223136.53135.46933.95112.17711.82311.3170.86073.32072.30077.25024.44024.10025.7501.650R78.979.9810.8610.9414.2512.5812.9112.1513.31=105