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PROCESSING AND COMPLEX USAGE OF MINERAL RAW MATERIALS
ArticleName Copper-molybdenum ore beneficiation improvement based on the integrated radiometric grade control
DOI 10.17580/gzh.2016.06.08
ArticleAuthor Morozov V. V., Ganbaatar Z., Delgerbat L., Duda A. M., Rapshis V. V.
ArticleAuthorData

National University of Science and Technology — MISIS, Moscow, Russia:

V. V. Morozov, Professor, Doctor of Engineering Sciences, dchmggu@mail.ru

V. V. Rapshis, Post-Graduate Student

 

Erdenet Mining Corporation, Erdenet, Orhon, Mongolia:
Z. Ganbaatar, Counselor, Doctor of Engineering Sciences
L. Delgerbat, Chief Automated Process Control Specialist, Doctor of Engineering Sciences
A. M. Duda, Deputy Head of Automation and Computation Equipment Department

Abstract

The article gives a description of system and algorithm for copper–molybdenum ore grade estimation based on material constitution and mineral composition of ore and on the ground of ore beneficiation control. The system includes X-ray-fluorescent and visiometric analyzers to be mounted above the crushed ore conveyor and allows real-time information on the material constitution, mineral composition and grade of ore. For higher-reliable X-ray fluorescence analysis, the analyzer was installed at an angle of 45° off the vertical and was furnished with mechanical protection from damage by ore fragments. For better identification, the multi-format image identification algorithm with modern chromatic image identification formats RGB and HSV was used. Grade of ore was calculated using a multi-criterial method, based on seven or more significant parameters of ore. The quantity of each of the five basic types of ore is determined in the preparation feed, and the ore enrichment process parameters are calculated adequately. The pre-set functions were used as the framework in the local automatic control systems. The descried algorithms of operational ore grade analysis and quality control are based on the continuous integrated radiometric analysis of ore samples taken by the analytical control system. The introduction of the proposed approaches ensures an increase in the grinding circuit output and the enhanced recovery of copper and molybdenum in concentrates.

keywords Сopper-molybdenum ores, X-ray fluorescence analysis, optical analysis, mineral composition, ore grade, automated control, analytical monitoring, grinding, flotation
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