SOLIDS MIXING IN FLUIDIZED-BEDS

被引：30
|
作者：
SHEN, LH
ZHANG, MY
XU, YQ
机构：
[1] Institute of Thermo-energy Engineering Research, Southeast University, Nanjing
来源：
POWDER TECHNOLOGY | 1995年 / 84卷 / 03期
关键词：
SOLIDS MIXING; FLUIDIZED BEDS; MODELING;
D O I：
10.1016/0032-5910(95)02994-D
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The dynamics of solids mixing in a fluidized bed is investigated. Both radial mixing and vertical mixing are taken into account. In the model solids, which consist of an upward moving wake phase (W) and a downflowing emulsion phase (E), can exchange between the two phases, and diffuse in the E phase. Also, properties of bubbles, solids diffusion coefficient and drift velocities are variable along with the height of the bed. The power-law difference method is used to solve the convection-diffusion equations. The numerical results are in satisfactory agreement with existing previous experimental data.
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页码：207 / 212
页数：6
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