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Utilize surface conductivity to recover valuable metals from electronic scrap
Conductive and nonconductive particles such as chopped wire and computer scrap can be efficiently separated. A negative charge is applied to the material via a corona field. The conductive particles dissipate this charge and are subsequently thrown from the rotor by inertial forces. Nonconductive particles are notable to dissipate the charge and are pinned to the grounded roll surface. The nonconductive particles are subsequently removed from the rotor by a rotary brush and aided by an AC wiper used to negate the charge.
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