________________________________________________________________________________________________________________________
▲ Mineral separation on the Magnetic Disc Separator ( MDS )
▲ The high-intensity magnetic roll of the Induced Roll Separator
▲ The Electromagnetic filter electro overband magnets are suspended over conveyors , both across and in line with the belt , with electromagnetic models used for wider conveyors transporting higher tonnages , rock , or ore .
Pulley magnets are an option when the installation of an overband magnet is difficult . These replace the head pulley of the conveyor . Within ore processing applications , such as iron ore and manganese , where higher magnetic fields are required , large drum magnets with vibratory feeders are adopted .
High-intensity magnetic separators purify or concentrate non-metallic minerals and magnetic ores . The magnetic separator design is dependent on the nature of the minerals ( particle size , shape , and composition , for instance ) and the separation objective .
Specialized separators
For dry processing applications , mineral processors use the Rare Earth Magnetic Separator ( RE Roll ), the Magnetic Disc Separator ( MDS ), and the Induced Roll Magnetic Separator ( IRS ).
The IRS uses electromagnetic fields to generate high-intensity magnetic field , while RE Roll uses permanent neodymium rare earth magnets . These intense magnetic fields enable the separation of weak and para-magnetic minerals like mica or ironcoated silica , from non-metallic minerals like feldspar , silica sand , and zircon in a dry state . Once cleansed , the non-metallic minerals are used in many industries , including ceramics and glass production .
Typically , the electromagnetic MDS will feature up to three high-intensity electromagnetic discs , each set at a different from a feed conveyor . The first magnetic disc is set the furthest from the feed material , in order to extract only the mostly magnetically susceptible particles . The second and third discs are
14