Effect of Motion of Drying Materials in Fluidized Bed on Drying Characteristics
Effect of Motion of Drying Materials in Fluidized Bed on Drying Characteristics
复制标题
干燥物料在流化床内的运动对干燥特性的影响
DOI：
10.1252/jcej.35.753
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发表时间：
2002
影响因子：
0.8
通讯作者：
K. Noda
中科院分区：
文献类型：
--
作者：
Y. Tatemoto;Y. Mawatari;K. Saito;K. Noda
研究了多孔物料在流化床中的干燥特性。使用玻璃珠（直径0.12 mm）作为流化颗粒。主要使用砖球和烧结玻璃球作为样品。样品在流化床中固定或不固定。改变干燥气体的质量流速和温度，在不固定的情况下，砖球浮在床层上，烧结玻璃球沉在床层底部。在流化床中，当样品在床面时，松脱干燥时间比固定干燥时间短。流化床的流化特性对未固定样品的干燥特性有很大的影响。样品中心温度存在一个恒定的时间段，随着干燥气体温度的升高，样品中心温度升高。
The drying characteristics of porous materials immersed in a fluidized bed were examined. The glass bead (0.12 mm in diameter) was used as the fluidizing particle. A brick ball and a sintered glass ball were used as the samples, mainly. The sample was fixed or unfixed in the fluidized bed. The mass velocity and temperature of drying gas were changed.In the case of unfixing, the brick ball floats on the bed and the sintered glass ball sinks at the bottom of the bed. The drying time for unfixing is shorter than that for fixing in the fluidized bed when the sample exists on the bed surface. The fluidization behavior of bed has a large effect on the drying characteristics of the unfixed sample. There is the period when the temperature of sample center is constant, and the temperature becomes higher with an increase in the drying gas temperature.