卧式多级离心式高压氨泵在大尿素装置中的应用

(332004),,Snamprogetti52tNuovoPignoneNuovoPignone,,2(11),1996101,10245min,2,AB23,207h8,3,14%2,,19983,,2,14X10-DDHF-10,,102,2.2MPa40,5,6,61022.5MPa,115m3/h7500r/min,1150kW,1JohnCraneT28VLSS410+WC,,(1A)1.7MPa,V-105(133282B),,,(1F),(1E)T-10422.1(1):,,;,,,,3m,,,,;,,,,,,,40m,,,30300m,3m,,,(2),,,,,X,Cr79.75%,Fe16.85%,Mn2.47%,CaSSiCrNiW,,,,,,,SS410(3)OO,(4),,,6m(1C),(2.2MPa)(1.7MPa)6.3h,,6m15m,10.7h,,,,,1.7MPa,,2.2,1,(1),:0.28mm,0.25mmB,(2),,,,,(3)3,0.230.295.00mm,43282:2API,9720r/min,API,,,(4),,,,,2.3,(1)A352LCB,,AISI316STELLITED,,(2),,,,,NuovoPignone,15%,25%,(3),140HB,,33.1(1)CD(1),,,,(2)4,40,6m2.5m(3)1,(E-107),(4)0.20mm,(5),,,(6)O,1mm(7)40m10m,(8)200,,3.2(1)7mm,2mm,(2),(3),0.10mm,,(4)0.100.15mm,,(5),(6),,3.3(1)ASTMA352GR.CA6NMmod,(2),15%,(3)160HB,453282(22MPa)(7500r/min)(115m3/h)(1150kW),,3,,,(21000r/min),,(2000-07-26)(12t24t)19991,,1(1),111751DP4S12M1B3D1(mm)250700(kg/m3)1000(Pa)04172(Pa)-11683(0%100%)-11683-751111.2.3.(1)(2),,,(3),,(4),,2(1),DN80,(2)1400mm(2)221151DP4S22S2M1B3Q4316SST(mm)01400(kg/m3)934(Pa)012978(Pa)-13076(0%100%)-13076-9821.2.3.3(1),,(2),(3)(455133)63282Keywordsyellowphosphorusdearsenificationindustrialexperi2mentInfluenceofOrgano2PotashFertilizersandAminoAcid2ComplexedMicronutrientFertilizersonYieldandQualityEffectofFlue2CuredTobaccoFanYaoting,RuanBoyang,WangWenzhouetal.AbstractAstudyismadeoftheinfluenceoforgano2potashfertiliz2ersasbasemanuresandforfoliardressingandamino2acidmicronutrientfertilizerswithrareearthelementsforfoliagedressingonthephytologicalpropertiesandphotosynthesisofthetobaccoplantandtheyield,outputvalueandqualityofthetobaccoleaves.Theexperimentalresultsindicatethat,whenorgano2potashfertilizersareusedasbasemanureandaresprayedasfoliarfertilizersduringvegetationandamino2acidmicronutrientfertilizerswithrareearthelementsareusedforfoliardressingduringmatu2rity,theyieldandoutputvalueofthetobaccoleavescanbeincreasedbyover10%,andthepotassiumcontentandqualityoftheleavesaregreatlyimproved.Keywordsorgano2potashfertilizersrareearthelementsamino2acidmicronutrientsflue2curedtobaccoStudyofDissolving2outBehaviorofCalciumfromPotassium2CalciumFertilizerZhuYunqin,FengYuegang,LiaoMingeetal.AbstractAstudyismadeofthedissolving2outbehaviorofcalciumfromapotassium2calciumfertilizerunderdifferentconditionsthroughex2perimentation,thusprovidingabasisfortheuseofthepotassium2calciumfertilizer.Keywordspotassium2calciumfertilizercalciumoxidedissolv2ing2outbehaviorUseofHorizontalMulti2StageHigh2PressureCentrifugalAmmoniaPumpsinLargeUreaUnitsLiHaiyingAbstractApresentationisgivenontheuseforthefirsttimeofthehorizontalmulti2stagehigh2pressurecentrifugalammoniapumpanddry2gassealsforpumpsinthelargeureaunitbasedontheammoniastrippingpro2cess.Asystematicanalysisismadeofthecausesforthefrequentdamageofdry2gasseals,axlevibrationandgradualdecreaseinpumpdeliveryen2counteredduringthetestrun.Afterseveralrenovations,theobjectiveoflong2termoperationisachieved,andthegapsoftheuseathomeandabroadofthistypeofpumparefilled.Keywordshigh2pressurecentrifugalpumpdry2gassealsusetroubleshootingrenovationMeasuresofTechnicalRenovationinGasificationSectionWangGuoxiang,ZouHong,FengWenmeiandWangJieAbstractAdescriptionisgivenofseveraleffectivemeasuresandadvancedtechnologiesforthetechnicalrenovationofthegasificationsec2tion,withemphasisontheenergyconservationprocessofcontinuousrun2ningofthegasificationsystemdesignedtomakegasintermittently.Itispointedoutthatautomaticcontrolisaneffectivemeasureforincreaseincapacityanddecreaseinconsumption.KeywordsgasificationtechnicalrenovationmeasuresenergysavingDevelopmentofModelTHL-IGrateforª3600CoalGasifierXuYongzhengAbstractOnthebasisofthesumming2upoftheproblemsinthegratefortheª3600gasifier,theModelTHL-Iª3600gratehasbeendesignedanddeveloped,therebysolvingeffectivelytheproblemsintheo2riginalgrateandobtaininggoodresultsinproductionanduse.KeywordsgratestructuredevelopmentTechnicalRenovationbyEliminationofBalancingStagefrom4M20Hydrogen2NitrogenCompressorGeXiumin,ShengGuangzhenandJiangHuaAbstractTherenovationispresentedbytheeliminationofthebal2ancingstagefromthe4M20compressorextensivelyusedinthesmall2scalenitrogenousfertilizerplantsatpresent.Aftertherenovationtheoutputisincreased,theproductionisstabilized,andsatisfactoryresultsareob2tained.Keywordshydrogen2nitrogencompressortechnicalrenovationDevelopmentandUseofTechnologyforNewTypeofFormedCoalWangLijunAbstractWiththebinder,strengthandashfusionpointastechni2callydifficultpoints,atechnologicalprocessforanewtypeofformedcoalhasbeendevelopedthroughstudyforseveralyears.Thisformedcoalcanbeusedintheproductionofchemicalfertilizersorascoalforboilersandforciviluseandisaneffectiveroutefortheutilizationofcoalandcokefines,clean2upoftheenvironmentandfullutilizationoftheresources.KeywordsformedcoalbinderdevelopmentuseSelectionofDustCollectorsinPhosphaticandCompoundFertilizerPlantsLiHongriandYuLiegenAbstractBycomparisonofthebagdustfilterwiththecyclonedustcollectorindesignandactualoperationitissuggestedthatthephosphaticandcompoundfertilizerplantsshouldreplacethebagdustfilterwitht