旋转盘式雾化雾滴粒径分布实验研究_英文_

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1、第31卷第4期林产化学与工业Vol．31No．42011年8月ChemistryandIndustryofForestProductsAug．2011殔檯檯檯檯檯檯檯殔檯檯檯檯殔研究报告檯檯檯檯檯檯檯殔ExperimentalInvestigationofSprayDropletSizeDistributionUsingaSpinningDiskAtomizer1，21，23HUANGLi-xin，WANGChun-peng，ZHOURui-jun，1，24XIEPu-jun，MUJUMDARAS(1．Instit

2、uteofChemicalIndustryofForestProducts，CAF;NationalEngineeringLab．forBiomassChemicalUtilization;KeyandOpenLab．onForestChemicalEngineering，SFA;KeyLab．ofBiomassEnergyandMaterial，JiangsuProvince，Nanjing210042，China;2．InstituteofNewTechnologyofForestry，CAF，HUANGLi-

3、xinBeijing100091，China;3．WuxiLin-ZhouDryerFactory，Wuxi214181，China;4．DepartmentofMechanicalEngineering，NationalUniversityofSingapore，Singapore119260，Singapore)Abstract:Spinningdiskatomizerisakeypartinmanyspraydryingsystems．Fewworksexistintheliteraturesdealingw

4、ithsizedistributionandchangesofthedropletsproducedbysuchatypeofatomizer．Inthiswork，amodelatomizerisusedtospray-dryare-dispersibleglueemulsiononanindustrialscaleproduction2000t/a．Themaximumspraycapacityofsuchanatomizeris2000kg/h．Thedisktestedhasadiameterof180mm

5、and24channels．Alaseranalyzerwasusedtomeasurethedropletsizedistributionofspraysproducedbythespinningdiskatomizer．Theeffectsofthediskrotatingspeedonwaterdropletsizedistributionwereinvestigated．Therotatingspeedofthediskwasvariedfrom16000to10000r/minusingafrequenc

6、y-inverter．Inordertoinvestigatethechangeofdropletsizetodriedparticlesizefromthespraydryer，thedropletsizedistributionofthere-dispersibleglueemulsionandthedriedparticlesizedistributionproducedweremeasured．Theresultsshowthatthemeansizewasreducedfrom92μmofdroplets

7、to72μmofdriedparticles．Itwasalsoobservedthatthemaximumdriedparticlesizewaslargerthanthatofdropletsduetodropletandparticleagglomerationtakingplacewithinthespraydryingchamber．Keywords:spraydrying;spraysizedistribution;meansizediameterCLCnumbers:TQ351;TQ028．674Do

8、cumentcode:AArticleID:0253－2417(2011)04－0001－06旋转盘式雾化雾滴粒径分布实验研究1，21，231，24黄立新，王春鹏，周瑞君，谢普军，MUJUMDARAS(1．中国林业科学研究院林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室，江苏南京21