公开(公告)号：US10584060B2

公开(公告)日：2020-03-10

申请号：US15512686

申请日：2015-09-14

Applicant: Rolth do Brasil Indústria Comércio e Serviços Ltda.

Inventor： Sidnei Luiz Baumgartenn

IPC: C04B5/00 ,  B02C11/08 ,  C21C5/36 ,  C04B18/14 ,  B02C21/00 ,  B02C23/10 ,  B02C23/14 ,  B02C23/20 ,  B02C23/38 ,  B07B1/36 ,  B07C5/344

Abstract: A process and system having a primary crusher to reduce the fragments according to their granulometry; a magnetic separator to remove metallic fragments bigger than a determined granulometry; a rotary dryer to dry slag; an impact mill to disaggregate and fragment slag particles; a classifier for aero-classification and drag of fine and superfine particles; a cooler for cooling slag by means of heat exchange and removal of the fine and superfine particles that were not collected by the impact mill a vibrating sieve provided with two or more decks with screens of predetermined sizes; low-intensity magnetic separators, with generation of non-magnetic slag fractions free from metallic iron and from iron monoxide, and of magnetic fractions composed by metallic iron and iron monoxide; and low-intensity magnetic separators to reprocess the magnetic fractions with generation of concentrate with high metallic iron contents and a product with high concentration of iron monoxide.