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基于LED光源反射的液固搅拌槽中颗粒悬浮特性测定的光纤法
Authors
周宏宝
张广积
+3 more
李向阳
杨超
毛在砂
Publication date
1 January 2011
Publisher
Abstract
提出一种基于LED光源反射的液固搅拌槽中固体颗粒悬浮特性测定的光纤法.在直径0.38m、底部为椭圆形的搅拌槽中,用该法对水-二氧化硅两相体系固体颗粒悬浮特性进行了测定.结果表明,测量临界离底悬浮转速Njs的测量点应选择在搅拌槽下部区域,径向位置对Njs影响不大;在整个固含率范围内,光纤测量法与取样法测量结果较接近,平均相对误差为4.0%,目测法测定结果比取样法与光纤测量法稍高,光纤法比取样法更快速、简便,具有适用于不透明容器的优势,能快速测定最小均匀悬浮转速Nus,Nus随固含率增大而增大
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Last time updated on 05/12/2019