The influence of different internal geometries on the solid flow in rotary drums under variation of the operational parameters feed rate, slope, and rotational speed is investigated. Four different configurations of a fully optically accessible lab‐scale rotary drum are analyzed. The internals are built as sectional compartments of the cross section, referring to industrial applications. The axial dispersion model is used to calculate the mean residence times and axial dispersion coefficients. It can clearly be shown that the sectional internal geometries significantly increase mean residence times and holdups in dependence on the set of operational variables. The axial dispersion coefficients were in a comparable range with literature data.

中文翻译：

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带有分段内部构件的转鼓中的固体流动：实验研究

研究了在进给速度，斜率和转速等运行参数变化的情况下，不同内部几何形状对转鼓中固体流动的影响。分析了完全光学可访问的实验室规模转鼓的四种不同配置。内部构件被构造为横截面的截面隔室，涉及工业应用。轴向弥散模型用于计算平均停留时间和轴向弥散系数。可以清楚地看出，取决于操作变量集，截面内部几何形状显着增加了平均停留时间和滞留率。轴向弥散系数在与文献数据相当的范围内。