Abstract

An empirical equation was obtained to estimate the concentration distribution in a horizontal helical double-ribbon mixer for cohesive food powders for different load ratios, f, and rotational speeds, N. The mixing times were determined for f = 0.56, 0.61, 0.66 and N = 50, 75, 100 rpm. The highest mixing rate coefficient and lowest mixing time were obtained for an impeller speed of 100 rpm and a load ratio of 0.56. The product of mixing time, t_M, and coefficient of mixing rate, ϕ, for different impeller speeds under the same load ratio was constant and characterized the impeller performance.

中文翻译：

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用于估计粘性食品粉末水平螺旋双带混合器中浓度分布的经验方程

摘要

获得了一个经验方程来估计水平螺旋双带混合器中不同负载比f和转速N 的粘性食品粉末的浓度分布。混合时间确定为f  = 0.56、0.61、0.66 和N  = 50、75、100 rpm。在叶轮转速为 100 rpm 和负载比为 0.56 时获得最高的混合速率系数和最短的混合时间。混合时间t _M和混合速率系数ϕ的乘积对于相同负载比下的不同叶轮速度是恒定的，并且表征了叶轮性能。