| 摘要 |
The invention relates to a strong magnetic field magnetic separator for separating solid particles with different magnetic susceptibilities that are suspended in a carrier medium, having a rotor (1) with at least one ferromagnetic rotor disc (2a, 2b), an arrangement of open containers (matrix boxes) (5) at the periphery of each rotor disc (2a, 2b), wherein ferromagnetic bodies (matrix) (6) for the separating operation are arranged in the interior, at least one apparatus (10) for transferring the suspension into the matrix boxes (5), at least one apparatus (12, 14) for discharging retained particle fractions, and a statically arranged magnet system having at least one yoke (8a, 8b), wherein the limbs of each yoke (8a, 8b) bear magnetic coils (7) and the pole shoes (9a, 9b, 9c, 9d) are arranged and the coil currents are directed such that two mutually opposite pole shoes (9a, 9b, 9c, 9d) of different magnetic polarities are located at the height of each rotor disc (2a, 2b) at the periphery thereof. According to the invention, provision is made for the at least one yoke (8a, 8b) to consist of a) a magnetic material composed of at least 99.65% pure iron, preferably at least 99.85%, with a maximum carbon content of 0.02%, preferably at most 0.01%, or b) an iron-cobalt alloy with a cobalt content of between 15% and 50%, preferably between 15% and 20%. |
