Influence of type of lining in high-pressure grinding rolls on effectiveness of copper ore comminution

• Autorzy: Saramak D. , Foszcz D. , Gawenda T. , Konieczny A. , Pawlos W.

Identyfikatory

DOI

10.5277/ppmp160116

• Języki publikacji: EN

Abstrakty

EN

Comminution in a High-Pressure Grinding Rolls (HPGR) device is considered as one of the most efficient method to break particles, in terms of the energy utilization. Two main types of the rolls linings are applied in hard ore grinding: studded and hexagonal, which show varied characteristics of operation and have different lifetime of service. The article concerns the analysis of HPGR device operation for various linings of the rolls. Two pilot-scale test programmes were run and performance of both types of rolls was tested in terms of energy consumption, technological effects measured by means of comminution ratio, lifetime service as well as economic aspects. Results of investigation show, that much longer lifetime service was obtained for the studded rolls, while hexagonal ones are more favourable from economic scope. The feed material for the HPGR comminution tests was Polish copper ore from two divisions of processing plants of KGHM Polska Miedz S.A. Taking into account that industrial comminution operations in mining and mineral processing sector consume over 50% of total energy utilized for ore treatment operations, the problem is of a major significance, especially in terms of optimization of hard ore crushing and grinding circuits.

Słowa kluczowe

EN

HPGR; comminution; copper ore; high-pressure grinding rolls device; HPGR linings; ore processing; energy consumption

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2016
• Tom: Vol. 52, iss. 1
• Strony: 182--192
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Saramak D.

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

autor

Foszcz D.

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

autor

Gawenda T.

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

autor

Konieczny A.

• KGHM “Polska Miedź” S.A., Division of Ore Processing Plant, Polkowice, ul. Kopalniana 1

autor

Pawlos W.

• KGHM “Polska Miedź” S.A., Division of Ore Processing Plant, Polkowice, ul. Kopalniana 1

Bibliografia

• CLEARY P.W., SINNOTT M.D., MORRISON R.D., 2008: DEM prediction of particle flows in grinding processes. International Journal for numerical methods in fluids, vol. 58 (3), 319–353.
• DANIEL M.J., MORRELL S., 2004: HPGR model verification and scale-up, Minerals Engineering, vol. 17 (11/12), 1149-1161.
• FUERSTENAU D.W., SHUKLA A., KAPUR P.C., 1991: Energy consumption and product size distribution in choke-fed high-compression roll mills. International Journal of Mineral Processing vol. 32 (1-2), 59–79.
• MORRELL S., LIM W., SHI F., TONDO L., 1997: Modelling of the HPGR crusher. Comminution Practices (ed. Kawatra K.S.). Society for Mining, Metallurgy and Exploration Inc. (SME), Chapter 17, 117–126.
• PAHL M.H., 1993: Praxiswissen Verfahrenstechnik – Zerkleinerungstechnik. Fachbuchverlag Leipzig/ Verlag TÜV Rheinland, Köln.
• RULE C.M., MINNARR D.M., SAUREMANN G.M., 2008: HPGR – revolution in Platinum?, 3rd Intern. Conference „Platinum in Transformation”, The Southern African Institute of Mining and Metallurgy, Johannesburg, SAIMM, 2008.
• SARAMAK D., 2012: Optimizing the performance of high-pressure grinding roll based ore enrichment circuits, Gospodarka Surowcami Mineralnymi-Mineral Resources Management, vol. 28 (4), 87–99.
• SARAMAK D., 2013: Mathematical models of particle size distribution in simulation analysis of High-pressure grinding rolls operation, Physicochemical Problems of Mineral Processing, vol. 49(1), 495–512.
• SCHONERT K., 1979. Aspects of the physics of breakage relevant to comminution. In: Fourth Tewksbury Symposium, University of Melbourne, 3.1–3.30.
• SESEMANNY., BROECKMANN C., HOEFTER A., 2013: A new laboratory test for the estimation of wear in high pressure grinding rolls, Wear, vol. 302 (1-2), 1088–1097.
• TAVARES L.M., 2005, Particle weakening in high-pressure roll grinding. Minerals Engineering vol. 18 651-657.
• TUMIDAJSKI T., KASINSKA-PILUT E., GAWENDA T., NAZIEMIEC Z., PILUT R.: 2010. Investigation of grinding process energy consumption and grindability of lithologic components of polish copper ores, Gospodarka Surowcami Mineralnymi-Mineral Resources Management, 26(1), 61-72.
• WEIR 2013, Weir Minerals/KHD Humbold Wedag, First choice for HPGR technology and service (official information booklet and catalogue of the product and technology).

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.