Adjustable magnetic separator

摘要

An adjustable magnetic separator and method is provided herein to process aggregate material including magnetic material into a magnetic portion having a predetermined magnetic susceptibility, and a non-magnetic portion. The method and system include configuring an adjustable magnet to provide an effective magnetic field at a separating surface of the magnetic separator corresponding to the predetermined magnetic susceptibility of the magnetic portion to be separated. The strength or intensity of the effective magnetic field may be varied by mechanically adjusting the position of the magnet array included in the adjustable magnet relative to a separating surface defined by the magnetic separator.

主权项

1. An adjustable magnet configured for use in a magnetic separator, the adjustable magnet comprising:
a magnet array including a plurality of permanent magnets defining an arcuate magnet array surface and configured to provide an array magnetic field; the magnet array defining a leading end and a trailing end; an adjustment mechanism including a mounting bracket, a first arm, and a second arm; wherein the mounting bracket is fixedly attachable to a fixed member of the magnetic separator; wherein the first arm is:
adjustable in length,pivotally attached at a first end to the mounting bracket, andpivotally attached at a second end to one of the leading end and the trailing end of the magnet array; wherein the second arm is:
pivotally attached at a first end to the mounting bracket, andpivotally attached at a second end to the other of the leading end and the trailing end of the magnet array; wherein the first arm and the second arm are each pivotable relative to the mounting bracket and to each other to position the arcuate magnet array surface adjacent to a separating surface defined by the magnetic separator; wherein the location of the separating surface is defined relative to the fixed member; wherein the position of the arcuate magnet array surface relative to the separating surface is adjustable to a plurality of positions by adjusting the length of the first arm; and wherein an effective magnetic field is defined at the separating surface by the array magnetic field and the position of the arcuate magnet array surface relative to the separating surface.