Effect of crushing type on the efficiency of flowing film separation

• Autorzy: Sirkeci A. A. , Gul A. , Bulut G. , Ozer M. , Guven O. , Perek K. T.

Identyfikatory

DOI

10.5277/ppmp1860

• Języki publikacji: EN

Abstrakty

EN

In recent years, the influence of different crushing systems (compression, impact, attrition) has been receiving more attention due to their significant role on particle liberation and shape of particles. The objective of this study was to investigate the effects of different crushing systems on both liberation degree and shape factors of chromite particles along with their enrichment conditions by shaking table. The tests were conducted on -1+0.5, -0.5+0.212 and -0.212 mm size fractions using the Wilfley type shaking table. The results of these tests showed that concentrates with higher metal contents were obtained by impact crushing of chromite in proportion to higher liberation degree and roundness of particles. Therefore, it was found that selective breakage can well be obtained by impact crushing in all fractions. The results of this study demonstrated the importance of crushing type on the liberation and enrichment processes.

Słowa kluczowe

EN

particle shape characteristics; liberation degree; chromite; shaking table

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2018
• Tom: Vol. 54, iss. 2
• Strony: 601--608
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Sirkeci A. A.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

autor

Gul A.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

autor

Bulut G.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

autor

Ozer M.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

autor

Guven O.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

autor

Perek K. T.

• Istanbul Technical University, Faculty of Mines, Department of Mineral Processing Engineering, 34469 Maslak, Istanbul

Bibliografia

• EVERTSSON, C.M. 2000. Cone crusher performance. PhD Thesis, Chalmers University of Technology.
• GUVEN, O., OZDEMIR, O., KARAAGACLIOGLU, I.E., AND CELIK, M.S., 2015, Surface morphologies and floatability of sand-blasted quartz particles, Minerals Engineering, 70, 1–7.
• GUVEN, O., CELIK, M.S., 2016, Interplay of particle shape and surface roughness to reach maximum flotation efficiencies depending on collector concentration, Mineral Processing and Extractive Metallurgy, 37, 6, 412-417.
• HASSAS, B.V., CALISKAN, H., GUVEN, O., KARAKAS, F., CINAR, M., AND CELIK, M.S., 2016, Effect of roughness and shape factor on flotation characteristics of glass beads, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 492, 88–99.
• HOSTEN, C., OZBAY, C., 1998, A Comparison of Particle Bed Breakage and Rod Mill Grinding with regard to mineral liberation and particle shape effects, Minerals Engineering, 11, 9, 871-874.
• KOH, P.T.L., HAO, F.P, SMITH, L.K., CHAU, T.T., AND BRUCKARD, W.J., 2009, The effect of particle shape and hydrophobicity in flotation. International Journal of Mineral Processing, 93, 128–134
• LEE, E., EVERTSSON, M. C., 2013, Implementation of optimized compressive crushing in full scale experiments, Minerals Engineering, 43-44, 135-147
• LEICA QWIN USER MANUAL, 1995, Leica Q500MC Qwin User Manual.
• LINDQVIST, M., 2008, Energy Considerations in compressive and impact crushing of rock, Minerals Engineering, 21, 631-641
• LITTLE, L., BECKER, M., WIESE, J., AND MAINZA, A. N., 2015, Auto-SEM particle shape characterization: Investigating fine grinding of UG2 Ore, Minerals Engineering, 82, 92–100.
• LITTLE, L., MAINZA, N.A., BECKER, M., WIESE, J.G, 2016, Using mineralogical and particle shape analysis to investigate enhanced mineral liberation through phase boundary fracture, Powder Technology, 301, 794-804.
• MAHMOUD, M.A.., 2010, Effect of comminution on particle shape and surface roughness and their relation to flotation process, International Journal of Mineral Processing 94, 180-191.
• NIKOLOV, S. 2002. A Performance model for impact crushers. Minerals Engineering, 15, 715-721.
• OZCAN, O., BENZER, H., 2013, Comparison of different breakage mechanisms in terms of product particle size distribution and mineral liberation, Minerals Engineering, 49, 103-108.
• STAMBOLIADIS, E. T., 2008, The evolution of a mineral liberation model by the repetition of a simple random breakage pattern, Minerals Engineering, 21, 213-223.
• TOMAS, J., SCHREIER, M., GROGER T., EHLERS, S., 1999. Impact Crushing of concrete for liberation and recycling, Powder Technology, 105, 39-51.
• UNLAND, G., 2007, The Principles of Single-Particle Crushing, Handbook of Powder Technology, Chapter 4, 12, 117-225.
• UNLAND, G., AL-KHASAWNEH, Y., 2009. The influence of particle shape on parameters of impact crushing, Minerals Engineering, 220-228.
• VERRELLI, D.I., BRUCKARD, W.J., KOH, P.T.L., SCHWARZ, M.P., AND FOLLINK, B., 2014, Particle shape effects in flotation. Part 1: Microscale experimental observations, Minerals Engineering, 58, 80–89.
• VIZCARRA, T.G., WIGHTMAN, E.M., JOHNSON, N.W., MANLAPIG, E.V., 2011, The effect of breakage method on the shape properties of an iron-oxide hosted copper-gold ore, Minerals Engineering, 24, 1454-1458.
• WEERASEKARA; N.S., POWELL, M.S., CLEARY, P.W., TAVARES, L.M., EVERTSSON, M., MORRISON, R.D., QUIST, J. AND CARVALHO, R.M., 2013, The Contribution of DEM to the science of comminution, Powder Technology, 248, 3-24.
• YAHYAEI, M., HILDEN, M., SHI, F., LIU, L.X., BALLANTYNE, G. AND PALANIANDY, S., 2016, Production, Handling and Characterization of Particulate Materials, Comminution, 157-199.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).