Nonmagnetic Particle - an overview | ScienceDirect Topics
Moderately magnetic dry substances on a conveyor/belt can be collected by overhead, cross-belt, or disc separators using magnetic field intensities between 0.8 and 1.5 T. Very weakly paramagnetic substances can only be removed if field intensities are greater than 2.0 T.At 5–200 mm size fractions, overhead permanent magnets are used to remove ferromagnetics.