Influence of Copper Ore Comminution in HPGR on Downstream Minerallurgical Processes

• Autorzy: Saramak D. , Wasilewski S. , Saramak A.

Identyfikatory

DOI

10.1515/amm-2017-0258

• Języki publikacji: EN

Abstrakty

EN

Crushing processes taking place in high-pressure grinding rolls devices (HPGR) are currently one of the most efficient methods of hard ore size reduction in terms of the energy consumption. The HPGR products are characterized by a fine particle size and the micro-cracks formation in individual particles, which appears in downstream grinding processes, decreasing their energy consumption. The purpose of the paper was to analyze the effectiveness of a ball mill grinding process and flotation operations depending on the changeable conditions of run of the HPGR crushing process. The research programme carried out included crushing tests in the laboratory scale HPGR device at various settings of the operating pressure volume and selected qualitative properties of the feed material (i.e. particle size distribution). On the basis of obtained results the models, defining the grinding process effectiveness as a function of changeable conditions of HPGR process run, were determined. Based on these models the optimal grinding time in a ball mill was specified which is, in turn, the basis for optimization of operation the technological comminution circuits for a given material type. The obtained results proved that the application of HPGR devices in given copper ore comminution circuit may improve the effectiveness of downstream grinding process what leads to improvement of the entire circuit work efficiency through decreasing the process energy consumption and enhancing the product size reduction.

Słowa kluczowe

EN

copper ore beneficiation; comminution; HPGR technology

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 3
• Strony: 1689--1694
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Saramak D.

• AGH University of Science and Technology; Faculty of Mining and Geoengineering; Department of Environmental Engineering and Mineral Processing; Al. A. Mickiewicza 30, 30-059 Krakow; Poland

autor

Wasilewski S.

• AGH University of Science and Technology; Faculty of Mining and Geoengineering; Department of Environmental Engineering and Mineral Processing; Al. A. Mickiewicza 30, 30-059 Krakow; Poland

autor

Saramak A.

• AGH University of Science and Technology; Faculty of Mining and Geoengineering; Department of Environmental Engineering and Mineral Processing; Al. A. Mickiewicza 30, 30-059 Krakow; Poland

Bibliografia

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Uwagi

EN

1. Article has been realized within the frames of research project no. 11.11.100.482.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).