THE INFLUENCE OF SLURRY CONCENTRATION ON THE THEORETICAL FILTRATION EFFICIENCY OF A TRANSVERSAL HIGH-GRADIENT MAGNETIC FILTER CELL WITH BOUNDED FLOW-FIELD

In this work the influence of the volumetric fraction of the solid pha se on the magnetic filtration efficiency is studied by taking into acc ount the effect of the solid particle concentration in the slurry upon its rheological and magnetic properties. A high gradient magnetic fil ter (HGMF) cell with transversal configuration is considered, within w hich the suspension contains small paramagnetic particles of spherical shape and identical from the point of view of their size and magnetic properties (uniformly distributed in the magnetic active space). The maximum recovery conditions are determined by numerically solving the particle trajectory equations, which have been derived by neglecting b oth inertial and gravitational effects, as well as any kind of particl e interactions except for hydrodynamic effects. (C) 1998 Elsevier Scie nce S.A.