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Suspending of solid particles in liquid by agitators
Feb 05, 2016

An investigation of the required stirrer speed and stirrer dimensions for the suspending of solid particles in a low viscosity liquid has been carried out. The results are given in dimensionless form. By means of these empirical correlations the design for this operation can be carried out in many simple cases. For more complicated systems it will probably be better to carry out trial experiments. Rules for scaling are discussed. As a criterion for complete suspension the condition is chosen that no solid matter rests on the bottom of the stirred vessel ; the homogeneity of the suspension throughout the whole vessel is not especially examined. The results are compared with data from literature. Theoretical consideration for the mechanism underlying the lifting of the particles from the bottom are not given, but research into this mechanism will be continued.


See more at: http://www.sciencedirect.com/science/article/pii/0009250958850319