电站冲灰水烟气脱硫的工业应用亢燕铭

＊亢燕铭　王胜良　沈恒根(,200051)　刘宏波(,710002)　利用燃煤电站锅炉冲灰水中碱性物质的作用,设计了一套湿法烟气脱硫系统,并在2台小型机组上进行了应用。系统运行情况表明,在选择适当的雾化喷嘴后,脱硫塔还可以起到对细粉尘的二次净化作用。这种具有脱硫功能的洗涤器可以使燃煤烟气在液气比不大于0.7的条件下获得70%左右的脱硫效率和90%左右的除尘效率。　燃煤电站　冲灰水　喷雾　烟气脱硫1　200014t,[1～3]。[2～4],SO2SO2。“”,SO2,[3,4]。,,,265tSO2。2　,。,70%,,pH。,pH,[5],SO26%～13%,[5][6,7],,。3　WFGD,,SO2。SO2,,,,。,。,,。,,,,。、,,,。,:(1)、。();(2)。,、;(3)。,;(4)。,,。,ST,6(CobaltAlloy6-AMS5387)。1ST20PQ。,3×105Pa,DAM=214μm,6mm。44　　　20032211DOI:10.13205/j.hjgc.2003.01.0151　ST20P×105Pa0.50.71235QL·m-326.631.537.653.265.184.1　　1ST203。,ST2023,,,,SO2,。ST。1　ST204　4.1　背景参数:24,65th;:4%～8%;:170td;7000h。:2×133600m3h(151510Nm3h);:157～177℃;:Y56-60-111712D,:133630m3h,:3.624kPa;:Y400-37-6,220kW,6000V,990rmin;:XCY-940,800～1200mgNm3;2.9%,SO2:4000～4900mgm3。2。2,CaOMgO,15%。,pH11.26～12.3。,CaOMgO。SO2。Al2O3Fe2O3,Fe3+[8]。2　CaOMgOAl2O3Fe2O3K2OSiO2%12.252.8823.0715.201.6631.24.2　系统设计,,。,,400～600Pa,110%,。,35A,18～20A,3000Pa。,,,。10mm,2mm,,(6a)。,20m,26ST203。,3,。,,,2。2　1—;2—;3—;4—;5—;6—;7—;8—;9—;10—;11—;12—。,,,45　　　20032211,3～3.5ms,SO2,,12s。5　5.1　液气比与烟气温度,,,,。,,60～90℃[9,10]。,,,,。-,,、,2Lm3,,。,,[11],pH。《》(GB13223—1996),Ⅰ,SO2362.2kgh。,50%,。SO2、pH,0.4～0.7Lm3。,,50℃。5.2　实测结果分析,。pH,,,pH=5.5～7,400Pa。3。4。,。,0.6Lm3,68%。,,,,Ca3　4　。Ca,。34,。,SO2。,5%～7%,89.3%,。6　,SO2230kgh,。10t,SO23700t,。,,pH,。,,,60。7　。,10%,70%,SO2。46　　　20032211,,、。,,。,,,。1　..,1994.14(4):1～6.2　..,1998.18(1):1～7.3　..:,1998.4　..:,2001.5　..,1991.9(2):21～25.6　..,2001.:42～44.7　..,2001.21(5):538～543.8　..:,2001.9　..,1996.17(5):16～19.10　..:,2001.11　,.pH().,1996.17(5):42～44.　　200051　1882　。2002-04-17朱晓帆　刘若冰((),610065)　蒋文举　苏仕军　金　燕(,610065)　　对喷射鼓泡反应器结构及反应器内传质、反应状态进行了分析,并对脱硫浸锰进行了研究。结果表明,采用喷射鼓泡反应器可以获得好的脱硫率和锰浸出率,同时该反应器将SO2吸收和锰浸出放在一个设备中进行,省去了外循环系统,故该装置系统简单、紧凑,投资省,脱硫效率高。　喷射鼓泡反应器　软锰矿浆　脱硫　浸锰1　MnO2,SO2,SO2,MnSO4[1～4]。,。、、、。,、,80%,,MnSO4。,SO2、,。(pH=1～3),,,,,,[5～7]。,。2　SO2,、。SO2,SO2。,,,,。,,,,。47　　　20032211Keywords　cyclicactivatedsludgesystem(CASS),electrolysisandpharmaceuticalwastewaterEXPERIMENTALRESEARCHONDISPOSINGSULFURDIOXIDEBYSTUFFEDCORONADISCHARGELiJianetal(35)……………………………………………………………………………………………………Abstract　Theeffectivenessoftreatingsulphurdioxidebycoronadischargeplasmaisstudied.Alargequantityoffreeradicalswithstrongoxidabilitycanbeproducedthroughcoronadischarge,whichcanreactphysicochemicallywithsulphurdioxide,soastoremovesulphurdioxide.Meanwhileaproperdielectricmediumcanalsobeaddedtostrengthencoronadischarge,whichcanreducethecostofthetreatment.Keywords　coronadischarge,plasmaprocessandsulphurdioxideRESEARCHONMEASUREOFRESISTANCE-BALANCINGTECHNOLOGYFORDEDUSTINGSYSTEMZhangHuiyingetal(38)…………………………………………………………………………………………………Abstract　Thispaperanalyzesthecharacteristicsofseveralresistance-balancingmethodsandtheworkingprinciplesofanorificedevice,alsodescribesitsadvantagesinengineeringdesign,debuggingandworkingeffectbycomparisonandanalysis.Keywords　dedustingsystem,resistance-balancing,orificeplateandorificedeviceEXPERIMENTALSTUDYOFDEDUSTINGATHIGHTEMPERATUREBYSINTEREDMETALLiuBinetal(41)………………………………………………………………………………………………………………………Abstract　Thepressurelossindifferentwindvelocitythroughdifferentthicknessofasinteredmetalisanalyzedbasedonthededustingexperimentsathightemperaturebythismetal.Thededustingefficienciesofthedustswithdifferentdiametersthroughthemetalarepresented.Therelationsofthepressurelosswiththewindvelocityandthethicknessofthemetalarederived,whichsuppliesabasisforthestudyontheoveralltreatmentofthefluegasinthefuture.Keywords　sinteredmetal,dedustingathighttemperatureandefficiencyofdedustingINDUSTRIALAPPLICATIONOFWFGDBYUSINGASH-SLUICINGWATERINACOAL-FIREDPOWERSTATIONKangYanmingetal(44)…………………………………………………………………………………Abstract　AWFGDsystemisdesignedandappliedtotwosmall-scalegeneratingunitsbyusingthealkalinematerialscontainedinash-sluicingwater.Theoperationresultindicatesthatifappropriatespraynozzleisselected,thespraytowercanalsoseparatefinedustparticlesfromthegasstream.Whentheliquidtogasflowratioisnotgreaterthan0.7,theabsorptionefficiencyofSO2andcollectionefficiencyoffineparticlescanbeupto70%and90%,respectively.Keywords　coal-firedpowerstation,ash-sluicingwater,sprayandfluegasdesulfurizationAPPLICATIONOFJETBUBBLINGREACTORTOFLUEGASDESULFURATIONBYPYROLUSITEPULPZhuXiaofanetal(47)…………………………………………………………………………………Abstract　Thestructureofajetbubblingreactor,themasstransferandreactiveconditionswithinthisreactorareanalyzed;desulphurationandmanganese-leachingarealsostudied.Theresultsindicatethathighratesofdesulphurationandmanganese-leachingcanbeobtainedusingthissortofreactor;SO2-absorbingandMn-leachingcanbedonebyoneequipment,whichresultinginasystemthatfeaturessimpledevices,compact,investment-savingandhighefficiencyofdesulphuration.Keywords　jetbubblingreactor,pyrolusitepulp,desulphurationandmanganese-leachingTHEEXPERIMENTALSTUDYONPROCESSCONDITIONOFCOMPOSTBYURBANSOLIDWASTESWangDunqiuetal(50)…………………………………………………………………………………………………Abstract　Anexperimentalstudyoncompostwasconductedusingthesludgeofanurbansewagedisposalplant,domesticrefusesandflyashes.Aproperratioofthecompostconsistingofsludge,refuseandflyashbeing4∶5∶1wasobtainedthroughtheresu