A quantitative analysis of the mixing of two segregating powders of different density in a gas-fluidised bed
A quantitative analysis of the mixing of two segregating powders of different density in a gas-fluidised bed
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DOI：
10.1016/0032-5910(78)80013-8
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发表时间：
1978-05
影响因子：
5.2
通讯作者：
A. Nienow;P. Rowe;L. Cheung
中科院分区：
文献类型：
--
作者：
A. Nienow;P. Rowe;L. Cheung
对密度不同的二元混合粉料的混合/分离行为进行了实验研究。混合指数M可通过Logistic方程与流态化速度U相关联：其中UTO为气速，其中M=0.5，UF为两个最小流态化速度中的较低者；UTO为两种粉末的大小、密度、形状和比例以及床层长径比。得到了包含所有这些因素的复杂经验方程。如果粉末之间没有密度差异，仍然可以使用Logistic方程。对UTO值进行了实验评估。
The mixing/segregation behaviour of binary mixtures of powders differing in density has been studied experimentally. The mixing indexMcan be related to the fluidising velocityUby means of the logistic equation: whereUTOin the gas velocity at whichM= 0.5, andUFis the lower of the two minimum fluidisation velocities.UTO, the take-over velocity, is related to the size, density, shape and proportion of the two powders and the bed aspect ratio. A complex empirical equation including all these factors has been obtained.If there is no density difference between the powders, the logistic equation can still be used providedUTOis evaluated experimentally.