Outokumpu Oyj

Kevin R McHenry

Eric S Yan

Thomas J Grey

A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The corona support member is preferably formed from a single piece of rigid material and has a substantially L-shape for directing an electrostatic field intensity towards the outer surface of a rotating drum. A pair of spaced spacers are connected to and laterally extend from the corona support member and an elongate conductive wire extends between the pair of spacers. The wire is preferably supported between the spacers and threaded bolts passing therethrough, respectively, can adjust its tension. A plurality of elongate static electrodes are spaced from the wire and are connected between the pair of end panels. The assembly may further include a pair of end shields, a pair of support members and an elongate support member for assisting to maintain the corona support member and static electrodes in a fixed position and for attaching the assembly to a frame of an existing electrostatic separator.

Corona and static electrode assembly

The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona element supplies mobile ions for bombarding particulate materials dropping down a passageway from a reservoir. A splitter and screen may be included in the passageway to direct particulate materials into respective fractions. First separator section receives fine to middle size fractions and second separator section receives middle to coarse size fractions. A support frame having adjustable slots supports a plurality of static electrodes. Corona element for emitting a corona charge is spaced generally in a first quadrant of first separator section. A rotatable brush and an alternating current wiper may be included for removing fine to middle size nonconductive fractions from first separator section. Additional splitter and/or a baffle may be included to help guide particulate material fractions into respective containers, onto a conveyor belt or the like. In an alternate embodiment, the corona classifier section may be housed and powered separately and independently from first and second separator sections.

Growing community of inventors

Jacksonville, FL, United States of America

Kevin R McHenry