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Chinese^Chem.Eng.,14(6)713—722(2006)
Fluid totheEffectof and
ComputationalDynamicsApproach Mixing
DraftTubeonthe Barium in
of SulfateaContinuous
Precipitation
StirredTank+
w▲NG aIld
2№I蜮王正)aMAoz昌斛m(毛在砂)8’料,YANGChao(杨超)asI皿N】|【i锄g伽(沈湘黔)b
8
InstituteofProcess of
Engineering,ChineseAcademySciences,Beijing100080,China
o
ResearchInstituteof and 410012.China
Changsha MiningMetallurgy,Changsha
Abstract of onthe in tankis
Theeffect ofbariumsulfateacontinuousstirred simulatedan.
mixing precipitation
withdifferentlocation,feed andresidencetime the
merically feeding concentration,impellerspeed throughsolving
standardmomentumand incombinationwiththemoment for
mass咖lsponequations equationscrystalpopulation
methodwas
balance.砀enumerical validatedwiththeliteraturedata.11hesimulationresults thedistribu.
including
tionofthe ratio in
local distributionthe sizeandcoc硒cientofvariation
supersaturation precipitator,meanc珂stal
underdifferent conditions wellwith dataintheliterature.1rtleeffectofthe
operating compared experimental pres.
enceofadrafttllbeon werealso itis thattheinstallationofadrafttube
precipitationinvestigated.and
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