The need to blend multiple powders or mix powders with liquids is commonplace across the bulk powder processing industries. The associated processes that come with blending and mixing are energy-intensive and have the potential to damage primary particles depending on the particles’ friability and the processing conditions applied. Just enough processing to reach a satisfactory endpoint is highly desirable from the perspective of minimizing variable costs, as minimal processing will mitigate the negative impacts of over processing and will maximize equipment usage (material throughput). Achieving this goal of a satisfactory endpoint relies on the timely detection of homogeneity, and one of the best way to do that is with real-time process monitoring.
In a recent article published in Powder & Bulk Engineering, John Yin (Freeman Technology) and Dr Valery Sheverev (Lenterra) examine the practicalities and benefits of inline technology for monitoring mixing processes, focusing on the technique of drag force flow measurement, which provides highly sensitive, real-time data. Experimental studies illustrate the capabilities of this process monitoring technique for a range of mixing and blending applications.
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