Abstract
The magnetic coagulation process mechanism features occurring in magnetic separators are disclosed. Magnetic coagulation occurs only at the threshold concentrations of ferro-particles in aqueous ferromagnetic suspensions. The basis of convergence (aggregation) mechanism of ferro-particles in a gradient external field is the difference in the ferro-particles’ speed with different masses. Based on mathematical modeling, it was found that during coagulation, the residual concentrations of ferro-impurities cannot exceed certain limit values, and mathematical expressions are obtained for calculating the distributions of the dispersed composition of aggregated particles. The combination of optimization procedures for the magnetic separators’ geometric parameters and the cleaning characteristics taking into account magnetic coagulation makes it possible to ensure the high levels of cleaning efficiency of finely dispersed ferromagnetic suspensions while reducing the cost of magnetic separators up to two times at the design stage.
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