How is mixing intensity calculated?
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Can the mixing intensity be calculated using the tip speed of the impeller? And how should it be calculated if there are multiple impellers in the mixer chamber?
This type of calculation requires many parameters; this topic is suitable for discussion in the machinery forum. More people are welcome to participate in the discussions
It is recommended to refer to “Chemical Process Vessels and Equipment”
It is actually the calculation of shear strength, which falls within the scope of rheology; at least in theory. It is recommended to find a book on rheology and take a look. During my graduate studies, I worked on pipeline flow dynamics. Ten years since graduation, I can’t remember anything anymore. Time is truly a butcher’s knife :(
Even if calculations are done, the results aren’t accurate; the data cannot be used either, as there’s a large discrepancy. It’s necessary to refer to the power consumption of similar devices. It’s recommended not to bother with further attempts – making an analogy will suffice
Can the mixing intensity be calculated using the tip speed of the impeller? Answer: The tip velocity of the impeller, also known as the linear velocity, is an important parameter for measuring the mixing intensity; however, it cannot be used as a sole indicator, as it is highly dependent on the characteristics of the impeller (such as its shape, width, and angle). What about when there are multiple blades in the mixer chamber? How should such cases be calculated? Answer: It is not recommended that people from manufacturers who are not specialized in mixing carry out this task, as there is a significant difference between theory and practice
This calculation is very simple; it is explained in relevant books. It is necessary to calculate the circulation rate of the mixer in order to determine the bulk flow velocity of the material. The mixing intensity is proportional to the flow velocity, and there is a specific formula for this relationship.
Have you time to teach me the basic calculations for mixing shafts?