动力配煤主要煤质指标的正确计算方法

动力配煤主要煤质指标的正确计算方法陈怀珍,陈文敏(煤炭科学研究总院北京煤化学研究所,北京100013):根据计算配煤煤质指标的加权平均值必须处于相同基准下的原则,纠正了过去沿用的一些不正确的计算方法,提出了计算配煤工业分析发热量灰熔融性和灰成分的正确的计算公式,从而使配煤煤质指标的理论计算值与实测值更趋于一致:动力配煤;煤质指标;计算方法:TQ533:A:1006-6772(1999)04-0043-04:1999-09-02:(1955-),,,,20,,90,,,(AadVadQgr,ad),(AdVdQgr,d)(Vdaf)%(DTSTHTFT),()(Mt)(Ad)(Mad+Aad),1(Mad),Mad,,Mad:Mad%=[(ABC)!(ABCMad)]∀(ABC)AadVadSt,ad3,12(Ad),,Ad100-Mad100,Ad:Ad%=[(ABC)!(ABCAd)]∀(ABC)431/%MtMadAadAdVarVadVdVdaf290200823581633267930733349357535050070266426831760184018532532360100176486949562005218922284418CRC(1~8)/%St,adSt,d/%SiO2Al2O3Fe2O3CaO/MJ#kg-1Qb,adQgr,ad/∃DTSTFT102602865720445182868430490121012201230712412548427572252541824013150015001500212212435640641341522014169150015001500:,:29%,35%36%Ad:Ad%=[(29!100-823100!633)+(35!100-070100!2683)+(36!100-176100!4956)]∀[(29!100-823100)+(35!100-070100)+(36!100-176100)]=2950%3(Vdaf),Vdaf,100-Mad-Aad100,Vdaf:Vdaf%=[(ABC)!Vdaf(ABC)]∀(ABC)Vdaf:Vdaf%=[(29!100-823-581100!3575)+(35!100-070-2664100!2532)+(36!100-176-4869100!4418)]∀[(29!100-823-581100)+(35!100-070-2664100)+(36!100-176-4869100)=3407%Vdaf,:Vdaf%=(29!3575+35!2532+36!4418)∀(29+35+36)=3513%Vdaf106%4(Var),Var:Var%=%!100-Mad100-Mt!Var∀%!100-Mad100-Mt,Var:Var%=[(29!100-823100-20!2679)+(35!100-070100-5!1760)+(36!100-176100-10!2005)]∀[(29!100-823100-20)+(35!100-070100-5)+(36!100-176100-10)]=2128%Var,:Var%=(29!2679+35!1760+36!2005)∀(29+35+36)=2114%Var,014%5(Qnet,ar)Qnet,arVar44199954(1):%=%!100-Mad100-Mt(2):Qnet,ar∀22Mt/%Mad/%/%/%Qnet,ar/MJ#kg-120050035415620495030025255323001006004041782007100108872092Qnet,ar,2095MJ/kg,003MJ/kg6(DTSTFT),,:STFTDT(∃)=[(ABC)!(ABC!100-Mad100)!(ABC)!(ABCSTFTDT)]∀[(ABC!100-Mad100)!(ABC)]ST(∃)=[(29!100-823100!633!1220)+(35!100-070100!2683!1500*)+(36!100-176100!4956!1500*)]∀[(29!100-823100!633)+(35!100-070100!2683)+(36!100-176100!4956)]%1483∃1500*ST1500∃,,,:ST(∃)=[(29!1220)+(35!1500*)+(36!1500*)]∀(29+35+36)%1419∃,(ST),ST64∃FT(∃)=[(29!100-823100!633!1230)+(35!100-070100!2683!1500*)+(36!100-176100!4956!1500*)]∀[(29!100-823100!633)+(35!100-070100!2683)+(36!100-176100!4956)]%1484∃FT,FT1422∃,62∃DT(∃)=[(29!100-823100!633!1210)+(35!100-070100!2683!1500)+(36!100-176100!4956!1500)]∀[(29!100-823100!633)+(35!100-070100!2683)+(36!100-176100!4956)]=1483∃,,DT1416∃,67∃7,SiO2Al2O3%=[(ABC!100-Mad100)!(ABC)!(ABCSiO2Al2O3)]∀[(ABC!100-Mad100)!(ABC)]3SiO2657%484%356%,SiO2:45SiO2%=[(29!100-823100!633!657)+(35!100-070100!2683!484)+(36!100-176100!4956!356)]∀[(29!100-823100!633)+(35!100-070100!2683)+(36!100-176100!4956)]=4307%SiO2,:SiO2%=[(29!657)+(35!484)+(36!356)]∀(29+35+36)=4881%,574%8,,,,CorrectCalculationMethodofMainCoalQualityIndexinSteamCoalBlendingCHENHuaizhen,CHENWenmin(BeijingResearchInstituteofCoalChemistry,CCRI,Beijing100013,China)Abstract:Forcalculationthepopulationsmeanofblendingcoalquality,itshouldbeunderthesamebase.Thecorrectformulaofproximateanalysis,heatingvalue,fusibilityofcoalashandashcompositionwasprovidedforcoalblendingcalculation.Thetheorycalculationvalueofblendingcoalqualityindexmaytallywiththepracticemeasurevalue.Keywords:coalblending;coalqualityindex;calculationmethod(上接第29页)N2OCatalyticDecompositionCatalyticActivityofCuYMolecularSieveXUXiufeng1,SUOZhanghuai1,SHAOGuoqiang1,ANLidun1,WANGWeimin2,NIUMingzheng2(1InstituteofAppliedCatalysis,YantaiUniversity,Yantai264005,China)(2YantaiPowerPlant,Yantai264000,China)Abstract:TheCuYmolecularsieveseriescatalystwaspreparedbyusingtheionexchangeandequivalentvolumesoakmethod.ItsactivityforN2Odecompositionwasinvestigated.TheresultshownthattheCuYcatalyticactivityisincreasingastheCu2+exchangeextentincreasing.Theeffectofcalcinationtemperatureoncatalyticactivityisobvious.CatalyticactivityofCuYpreparedbyionexchangemethodishighthanthesoakmethod.Keywords:CuYmolecularsieve;N2O;catalyticdecomposition46199954