METHOD FOR ENRICHING SLAGS CONTAINING HIGH-QUALITY STEELS AND SLAGS CONTAINING IRON FOR EXTRACTION OF METALS

摘要

1. A method of beneficiating slags containing high-grade steels and slags containing iron to extract metals, in which slags containing high-grade steels or slags containing iron are sent to the process of dry grinding, deagglomeration, classification and sorting and a metal fraction is formed and at least one silicate fraction, wherein the slags containing iron are preliminarily subjected to reduction treatment and fed as modified slags containing iron, while for grinding For grinding and deagglomeration, an abrasive mill with a runner path and grinding rolls rolling along the milled layer is used, while slag containing high-grade steels or modified slag containing iron are loaded into the abrasive mill with a grain size of the feed material of up to about 150 mm and grinding and deagglomeration are made depending on the type of slag, the metal content in the slag, the degree of adhesion and the required degree of purity of the metal and silicate fraction and the particle size of the finished product in the range of from 150 to 4,500 kN / m with respect to the vertically projected on the cup runners average diameter of the roll surface while maintaining the shape of metal chastits.2. The method according to claim 1, characterized in that a combination of an abrasive mill with a separator is used, in which grinding and deagglomeration are performed, and, if necessary, drying, as well as separation into a metal fraction and a silicate fraction. The method according to claim 2, characterized in that for grinding, deagglomeration, classification, sorting and drying,