METHOD FOR SEPARATING METAL CONTAINING PARTS FROM DRY SLAG AND USING THIS METHOD FOR A COMBUSTION SLASH

摘要

The present invention with regard to a method for separating metal-containing fractions from slag comprising the successive steps of: Supplying the slag; processing the slag into fractions; pre-separating the fractions with a magnetic separator where substantially all iron-containing fractions are separated; and separating non-ferrous metal-containing fractions by using an eddy current separator. Characteristic for the method according to the invention is that the slag is dry when the slag is processed to obtain fractions. It is, furthermore, characteristic for the method according to the invention that the fractions have a size of at most 5 mm with regard to the pre-separation and separation of non-ferrous metal-containing fractions. Advantageously fine dust fractions with a dimension of at most 1 mm are separated from the stream of fractions with a size of 5 mm or less, preferably in the step where iron-containing fractions are separated.