Magnetic drum separator and method for operation thereof

摘要

A magnetic drum separator (2), with a drum (6) rotatable about a rotational axis (4), a magnet arrangement (10) of a plurality of magnets (12) arranged in the interior (8) of the drum (6), a separation zone (18) in the exterior space (14) of the drum (6); a feed material (22) flows through the separation zone (18) and is there separable with the aid of a magnetic field (26) generated by the magnet arrangement (10), into a waste stream (30) and a recyclable material stream (28). A relative position (R) of at least one of the magnets (12) relative to the rotational axis (4) can be varied. A nominal magnitude (S) for a process value (78) on the drum separator (2) that is influenced by the separation behavior (32) is specified. At least one measurement device (74) detects an actual magnitude (I) of the process value (78), and a controller (82), which changes the relative position (R) of the at least one of the magnets (12), whereby the actual magnitude (I) is controlled to approach the nominal magnitude (S).

主权项

1. A magnetic drum separator comprising:
a drum which is rotatable about an axis of rotation; an interior space in the drum; an arrangement of magnets having a plurality of the magnets arranged within the interior space in the drum; a separation zone located in an exterior space outside the drum, and configured for material to be processed to flow through the separation zone; the arrangement of magnets producing a magnetic field operable for separating the material to be processed into a waste stream and a useful material stream in the separation zone in accordance with separation characteristics of the drum separator; a relative position of at least one of the magnets relative to the drum axis of rotation can be altered; a set-point value can be issued for a process value on the drum separator, wherein the process value is influenced by the separation characteristics; at least one measuring instrument for determining an actual value of the process value; and a regulator configured for automatically changing the relative position of the at least one of the magnets automatically in a manner to regulate the actual value toward the set-point value.