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The Influence of Stirred Mill Orientation on Calcite Grinding

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Abstract

The purpose of this study was to investigate the dry grindability of calcite powders in a vertically and horizontally orientable laboratory batch type stirred mill. The experimental results were evaluated using stress intensity analysis. The performance was also compared in terms of mill orientation. The results showed that the d50 values decreased with increasing stress energy down to a certain point and then increased for both milling orientations. Even though the optimum stress energies for both vertical and horizontal orientations were in the range of 1*10−3 to 5*10−3 Nm at 750 and 1500 kJ/kg energy consumption, the product size was finer for the horizontal orientation at the same stress energy value. Additionally, to the best of the authors’ knowledge, this is the first study to compare mill orientation (vertical vs. horizontal) for the same mill and under the same test conditions.

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Acknowledgments

The authors would like to thank Micron’S Company (Nigde, Turkey) for providing the sample, and Niğde Ömer Halisdemir University Scientific Research Projects Directorate (Project No. FEB2016/23 BAGEP) for funding this research.

A special thanks to Prof. Aubrey Mainza (University of Cape Town) for all contributions.

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Authors and Affiliations

  1. Faculty of Engineering, Department of Mining Engineering, Niğde Ömer Halisdemir University, Nigde, Turkey

    Serkan Cayirli

  2. Faculty of Engineering and Architecture, Department of Mining Engineering, Eskisehir Osmangazi University, Eskisehir, Turkey

    Hasan Serkan Gokcen

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  1. Serkan Cayirli
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  2. Hasan Serkan Gokcen
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Contributions

Serkan CAYIRLI: Conceptualization, methodology, formal analysis, investigation, project administration, funding acquisition, writing.

H. Serkan GOKCEN: Conceptualization, methodology, formal analysis, investigation, writing, review and editing.

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Correspondence to Serkan Cayirli.

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Cayirli, S., Gokcen, H.S. The Influence of Stirred Mill Orientation on Calcite Grinding. Mining, Metallurgy & Exploration 38, 1551–1560 (2021). https://doi.org/10.1007/s42461-021-00426-7

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