分解炉混煤高效低nox燃烧的数值模拟与结构优化 (1)

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1、Abstracttheinstallationheightoftheaddingdenitrationcoal-nozzleinconicalpart.Theresultsshowthatwhenthedenitrationcoal-nozzleisparallelwiththerevivificationtertiaryair,theoptimalcoalinjectionangleisupto15degreeandtheoptimalinstallationheightis2.5m.Inthiscondi

2、tionthedistributionoftemperatureissuitableforthedecompositionofrawmeal,andthedistributionofcarbonmonoxide,oxygen,carbondioxideisreasonablewhilethecharburnoutrateandcharburnoutratioareoptimal.(4)ByanalyzingtheeffectofstructureoptimizationonNOxproducingincalc

3、iner,therisingofcalcinerchokediameterandcoal-injectionductfeedcoalanglebothmakeNOxconcentrationincreasefirstandthendecrease.Basedontheoptimaldiameterofthethroatinthecircularconesiteofthecalcinerandtheoptimalinjectionangleofthecoal-injectiontubethedenitratio

4、ncoal-nozzlesareadded,andtheconcentrationofNOxincreaseswithheightincreasing.Thenumericalsimulationresultsprovideanimportanttheoreticalbasisforthestructuraloptimizationofcalcinerusingmixedcoal.Keywords:calciner;structuraloptimization;numericalsimulation;NOxI

5、II万方数据目录目录第1章绪论..............................................................................................................11.1选题背景............................................................................................................11.2新型干法水泥技术简介..

6、..................................................................................11.3分解炉研究进展.................................................................................................31.3.1分解炉的热工特性.....................................................

7、................................31.3.2分解炉研究进展.........................................................................................31.4煤粉低NOx燃烧技术研究进展........................................................................51.5课题来源及研究内容....................

8、.....................................................................61.5.1课题来源.....................................................................................................61.5.2研究内容...........