并通过实验求得此工况下床层的临界流化速度。
When cotton stalk and bed material are well mixed, the minimum fluidizing velocity can be achieved by experiment.
结果表明：临界流化速度随着粒度的增大而增大；
The experimental results indicate that the critical air velocity increases with the increase of the particle size of arenaceous quartz.
而在粒度一定的情况下，床层高度的变化不影响临界流化速度值。
Meanwhile, the change of the bed height does not affect the critical air velocity when the particle size of arenaceous quartz is fixed.
本文首先从理论上分析了温度对气固流化床的临界流化速度的影响。
In this paper, the influence of temperatures on the critical fluidization velocity was analyzed theoretically at first.
从流化床临界流化速度的定义出发，得出了振动流化床第一临界流化速度数学模型。
Based on the original definition of the critical fluidization velocity, a mathematical model was proposed to predict the first critical fluidization velocity.
根据振动流化床床层动力学特性，提出了第一、第二流化段，第一、第二临界流化速度的概念。
According to the dynamical characteristic of the vibrated fluidized bed, the first and second fluidization stages and the first and second critical fluidization velocities were put forward.
提出计算流化压降的修正式和临界流化速度的准数关联式，为进一步研究此设备的干燥性能打下基础。
The modified correlations of dimensionless groups for calculating both-Ap and Um are presented as the basis for further study on the drying performance of the dryer.
提出计算流化压降的修正式和临界流化速度的准数关联式，为进一步研究此设备的干燥性能打下基础。
The modified correlations of dimensionless groups for calculating both-Ap and Um are presented as the basis for further study on the drying performance of the dryer.
应用推荐