循环流化床烟气脱硫装置对电除尘器影响研究

114000m3PhDCFBS:2004-12-30;:2005-04-20:(1970-),,,.:1001-2060(2005)04-0377-041,2,1,3(11,100084;21,150001;31,250061):75tPh,,,,,,,,,:;;;:X701.3:A1,,,(),,,CFBFGD2(DCFBS)4,1:():,,,,,,,20420057JOURNALOFENGINEERINGFORTHERMALENERGYANDPOWERVol.20,No.4Jul.,2005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.75tPh:BZWB75P5.3-M,127983141357m3Ph;150170;10876.5kgPh;3000mgPm3175tPh:FAA245M-56-90-A2,11Pm250.4Pms-10.741P2Pm22268Pmm400P%3P14P%98.5Pmm24500PPa2943,10%20%,,,:CaPS=1.3,T=13,C=750gPm3,v=5.0mPs,C=10%22()P%P%P%P%P%PkJkg-1PkJkg-111.022.415.461.22.1624744.425114.920.526.621.251.73.2825013.325506.3,0.125mm;3SO30.31%43SiO2Al2O3Fe2O3CaOMgONa2OK2OLOSSP%5.281.620.3174.164.870.290.6212.34P%47.0331.515.682.050.960.350.2111.764Pm2.892.895.795.7911.2811.2816.6416.6423.3423.3431.0631.067474P%19.3932.2427.537.614.661.884.532.02Pm3.303.306.606.6012.912.919.019.026.726.735.535.57474P%7.4518.4322.5011.8410.704.3411.3113.414(ESP)[1],,,[2],85%,15%,2.25%,,4.155ESPSiO2Al2O3Fe2O3CaOMgOSO3Na2OK2OLOSSP%47.0331.515.682.050.960.310.350.2111.76P%26.1117.622.6222.192.1315.260.150.2313.275,,,,6,,(4),,,,,,,DCFB,,,8732005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,(),,,6Pm3.303.306.606.6012.912.919.019.026.726.735.535.57474P%16.7129.0523.988.156.692.825.447.162SEMSEM2,,,,4.26001000gPm3,,[34],,,,,,,1.4DCFBS,DCFBS77ESPPP%Pgm-3PP%DCFBS15017036152515017036DCFBS65756070253585951525,,,,,,,;,,SO2SO3,:DCFBS,,,:;,,DCFBS,,DCFBS,90%,82%,SO2,,,,878,DCFBS,DCF2BS1%2%,,8ESP1PkV2PkVPmgm-3PkVDCFBS454038042075DCFBS78827476190230754.3,,,,,,,9734,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,1041010cm[5]DCFBS,,,,;,,DR-2,99ESPPPcm901.2108902.0109909.71091703.310119,DCFBS,,,,,,,3DCFBS3,,150,,150,,SO3,,SO3,,;,,,,,,5,,,(1),,90,1.2108cm,,,,(2)6001000mgPm3,,,,,,,(3),,,,:[1],.LIFAC[A].[C].:,2000.499-505.[2].[J].,1996(2):42-45.[3],.[M].:,1999.[4]./[A].[C].:,1993.508-514.[5].[A].2001[C].:,2001.109-112.[6].[M].:,1985.0832005©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.=AStudyoftheInfluenceoftheFlueGasDesulfurizerofaCirculatingFluidizedBedonanElectrostaticPrecipitator[,]PZHAOXu2dong,XIANGGuang2ming(ThermalEnergyEngineeringDepartment,TsinghuaUniversity,Beijing,China,PostCode:100084),WUShao2hua(HarbinIn2stituteofTechnology,Harbin,China,PostCode:150001)PPJournalofEngineeringforThermalEnergy&Power.-2005,20(4).-377380Thefluegassuspensiondesulfurizationsystemofadoublecirculatingfluidizedbedwasdesignedandconstructedfora75tPhcoal2firedboiler.Priortoandaftertheoperationofthedesulfurizationsystemacomparisonanalysisoftherelatedcharacteristicsattheinletofanelectrostaticprecipitatorwasconducted.Suchcharacteristicsincludefluegastempera2ture,humidity,chemicalcomposition,dustparticlediameter,outwardappearanceandspecificresistance,etc.Ithasbeenfoundthataftertheoperationofthedesulfurizationsystemthehumidityofthefluegasattheinletoftheelectrostaticprecipitatorhasincreasedwhileitstemperatureanddustparticlespecificresistivitydecreased,thusenhancingthesystemdesulfurizationefficiencyandthedustremovalefficiencyoftheelectrostaticprecipitator.Alsoinvestigatedwastheimpactofthefluegasdesulfurizerofthecirculatingfluidizedbedontheoperationstabilityanddustremovalefficiencyoftheelectrostaticprecipitator.Meanwhile,severalcountermeasuresforoperationimprovementarealsoproposed.Keywords:fluegasdesulfurizationofacirculatingfluidizedbed,electrostaticprecipitator,drymethodofdesulfurization=TheUseofMagnesiumIonMethodfortheDeterminationofDropletQuantityEntrainedbyFlueGasattheOutletofaDemistor[,]PLISen,ZHAOQu2lan,XUTong2mo,etal(Energy&PowerEngineeringInstituteundertheXianJiaotongUniversity,Xian,China,PostCode:710049)PPJournalofEngineeringforThermalEnergy&Power.-2005,20(4).-381383Basedonthetechnologicalfeaturesofthedesulfurizationbywetlimestone2gypsummethodtheauthorshaverevealedthroughastudythatMg2+concentrationinslurryisequaltotheconcentrationofMg2+inthedropletentrainedbythefluegasatademisteroutlet.Onthebasisofthisconclusionaconstantspeedsamplingwasperformedatthedemisterout2letwith5m3offluegasbeingextracted.OnthebasisofadeterminationoftheMg2+concentrationinamicro2fiberfil2terwashliquidinthesamplingsystem,inasampling2tubewashsolutionandinablankmicro2fiberfilterwashliquid,aswellastheslurrydensityinanabsorptiontowerandtheconcentrationofMg2+inanabsorption2slurryfilteringliquid,calculatedwastheliquiddropletquantityentrainedbythefluegasatthedemisteroutlet.Keywords:magnesiumion,demister,liquiddroplet,constantspeedsampling=ExperimentalStudyofWetFlueGasDesulfurizationbyUsingaSo2diumSulfiteCirculationMethod[,]PJIANGLi2qiao(ThermalScienceandEnergyEngineeringDepartment,Chi2naNationalUniversityofScience&Technology,Hefei,China,PostCode:230026),ZHAODai2qing,CHENEn2jian(GuangzhouInstituteofEnergyConversionundertheChineseAcademyofSciences,Guangzhou,China,PostCode:510070)PPJournalofEngineeringforThermalEnergy&Power.-2005,20(4).-384386,401Withthewetfluegasdesulfurizerbasedonasodiumsulfitecirculationmethod(processingcapacity1800m3Ph)servingasanobjectofexperim