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Conversion of the Mineral Matter of Brown Coal from the Kansk-Achinsk Basin and Hard Coal from the Ekibastuz Basin upon Their Crushing in a Disintegrator

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Abstract

The main regularities in the conversion of the mineral matter of coals of different ranks—brown coal from the Kansk-Achinsk Basin and hard coal from the Ekibastuz Basin—upon their crushing in mills with different energy intensities were established. The grinding of brown coals in a disintegrator led to a more uniform distribution of mineral substances in size fractions and to an enrichment of the fine fraction in internal ash components and iron-containing minerals, as compared with crushing in a ball–tube mill. The grinding of Ekibastuz coal in a disintegrator did not lead to significant changes in the distributions of mineral components in size fractions and in terms of density, as compared with crushing in a ball–tube mill.

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Funding

This study was supported by the Russian Foundation for Basic Research (grant no. 18-08-01005).

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    M. Yu. Chernetskiy, E. B. Butakov, A. V. Kuznetsov & A. P. Burdukov

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  1. M. Yu. Chernetskiy
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  2. E. B. Butakov
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  3. A. V. Kuznetsov
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  4. A. P. Burdukov
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Correspondence to M. Yu. Chernetskiy, E. B. Butakov, A. V. Kuznetsov or A. P. Burdukov.

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Chernetskiy, M.Y., Butakov, E.B., Kuznetsov, A.V. et al. Conversion of the Mineral Matter of Brown Coal from the Kansk-Achinsk Basin and Hard Coal from the Ekibastuz Basin upon Their Crushing in a Disintegrator. Solid Fuel Chem. 53, 202–207 (2019). https://doi.org/10.3103/S0361521919040037

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  • DOI: https://doi.org/10.3103/S0361521919040037

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