A study was performed to analyze the evolution of particle size distribution in the chocolate roller refining process. A mathematical model based on the continuity and population balance equations was developed to interpret industrial data. The industrial data were provided for chocolate pastes with powder/crystalline sugar particles at low/high shear rates. The parameters of the breakage frequency and fragment distribution function were estimated using industrial data. After parameter fitting, the model shows good agreement with the experimental results for varying conditions with a single consistently chosen set of parameters. This provides confidence that the general model structure is suitable for process evaluation. The population balance model was used to analyze the influence of changing some process variables on the efficiency of grinding. The results show that there might exist optimum values of the roll’s diameter and rotational velocity for a specific configuration of the equipment.

进行了一项研究，以分析巧克力辊精炼过程中粒度分布的演变。开发了基于连续性和人口平衡方程的数学模型来解释工业数据。提供了具有低/高剪切速率的粉末/结晶糖颗粒的巧克力糊的工业数据。使用工业数据估计破损频率和碎片分布函数的参数。参数拟合后，该模型与具有一致选择的单个参数集的不同条件下的实验结果非常吻合。这为通用模型结构适用于过程评估提供了信心。总体平衡模型用于分析改变某些工艺变量对磨矿效率的影响。