Analyzing the Mixing Dynamics of an Industrial Batch Bin Blender via Discrete Element Modeling Method
AbstractA discrete element model (DEM) has been developed for an industrial batch bin blender in which three different types of materials are mixed. The mixing dynamics have been evaluated from a model-based study with respect to the blend critical quality attributes (CQAs) which are relative standard deviation (RSD) and segregation intensity. In the actual industrial setup, a sensor mounted on the blender lid is used to determine the blend composition in this region. A model-based analysis has been used to understand the mixing efficiency in the other zones inside the blender and to determine if the data obtained near the blender-lid region are able to provide a good representation of the overall blend quality. Sub-optimal mixing zones have been identified and other potential sampling locations have been investigated in order to obtain a good approximation of the blend variability. The model has been used to study how the mixing efficiency can be improved by varying the key processing parameters, i.e., blender RPM/speed, fill level/volume and loading order. Both segregation intensity and RSD reduce at a lower fill level and higher blender RPM and are a function of the mixing time. This work demonstrates the use of a model-based approach to improve process knowledge regarding a pharmaceutical mixing process. The model can be used to acquire qualitative information about the influence of different critical process parameters and equipment geometry on the mixing dynamics. View Full-Text
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Sen, M.; Karkala, S.; Panikar, S.; Lyngberg, O.; Johnson, M.; Marchut, A.; Schäfer, E.; Ramachandran, R. Analyzing the Mixing Dynamics of an Industrial Batch Bin Blender via Discrete Element Modeling Method . Processes 2017, 5, 22.
Sen M, Karkala S, Panikar S, Lyngberg O, Johnson M, Marchut A, Schäfer E, Ramachandran R. Analyzing the Mixing Dynamics of an Industrial Batch Bin Blender via Discrete Element Modeling Method . Processes. 2017; 5(2):22.Chicago/Turabian Style
Sen, Maitraye; Karkala, Subhodh; Panikar, Savitha; Lyngberg, Olav; Johnson, Mark; Marchut, Alexander; Schäfer, Elisäbeth; Ramachandran, Rohit. 2017. "Analyzing the Mixing Dynamics of an Industrial Batch Bin Blender via Discrete Element Modeling Method ." Processes 5, no. 2: 22.