公开(公告)号：US20240165674A1

公开(公告)日：2024-05-23

申请号：US18551220

申请日：2021-10-14

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA

Inventor： MOHAMAD SABSABI ,  Daniel GAGNON ,  Paul BOUCHARD ,  Aissa HARHIRA ,  Elton SOARES DE LIMA FILHO ,  Francis VANIER ,  Josette EL HADDAD ,  Alain BLOUIN ,  Christian PADIOLEAU ,  Antoine HAMEL

IPC: B07C5/342 ,  B07C5/02 ,  G01N21/71 ,  G01N21/84

CPC classification number: B07C5/3427 ,  B07C5/02 ,  G01N21/718 ,  G01N2021/845

Abstract: A system for the online sorting of ore samples based on mineralogy analysis includes a conveyor moving a stream of the ore samples along a conveying path, a LIBS module, a height measuring device, a focus controller and an airflow system. The LIBS module projects a LIBS laser beam along an optical path focused on an analysis spot of dimensions of the order of one or a few mineral components of the ore samples, and collects a returning LIBS light signal. The height measuring device and focus controller collaborate to adjust in real-time the focus of the LIBS laser beam to move the analysis spot perpendicularly to the conveyor according to a height of the ore samples crossing the optical path. The air flow system moves particles away from the optical path. A processing unit performs the mineralogy analysis of the ore sample based on the LIBS light signal.