METHOD FOR RECYCLING ALUMINIUM SLAGS COMPRISING AN EDDY CURRENT SEPARATOR OPERATING AT REDUCED ROTARY SPEED.

摘要

A method for recycling aluminium slags, comprising the steps of supplying aluminium slags, releasing aluminium-containing parts from the slags using a first crushing device in which the slags are crushed to form fractions, filtering the fractions using a first screening device to form at least a first and second part-stream, and passing at least the first part-stream along an eddy current separator for separating the aluminium-containing parts from the first part- stream. At least the first part-stream is passed along an eddy current separator which is driven at a rotary speed of less than 1000 rpm. The parts which remain downstream of this eddy current separator at the rotary speed of less than 1000 rpm are returned to a crushing device in order to be crushed further to form fractions. The fractions which have been crushed further are supplied to a screening device in order to be filtered to form at least a first and second part-stream. At least the first part-stream of fractions which have been crushed further and separated out by filtration is again passed along an eddy current separator which is driven at a rotary speed of less than 1000 rpm.