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A Study on the Hard Coal Grindability Dependence on Selected Parameters

Author

Listed:
  • Krzysztof Kogut

    (Faculty of Energy and Fuels, AGH University of Science and Technology, 30 Mickiewicz Ave., 30-059 Kraków, Poland)

  • Vladimir Cablik

    (Faculty of Mining and Geology, VSB—Technical University of Ostrava, 70800 Ostrava, Czech Republic)

  • Piotr Matusiak

    (KOMAG Institute of Mining Technology, 37 Pszczyńska St., 44-100 Gliwice, Poland)

  • Daniel Kowol

    (KOMAG Institute of Mining Technology, 37 Pszczyńska St., 44-100 Gliwice, Poland)

  • Tomasz Suponik

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 2A Akademicka St., 44-100 Gliwice, Poland)

  • Dawid M. Franke

    (Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 2A Akademicka St., 44-100 Gliwice, Poland)

  • Barbara Tora

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30 Mickiewicz Ave., 30-059 Kraków, Poland)

  • Radosław Pomykała

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30 Mickiewicz Ave., 30-059 Kraków, Poland)

Abstract

A very important aspect of proper preparation of the coal mixture for the coking process is its appropriate grinding. One of the parameters describing the energy input required for grinding is the Hardgrove index. This research was undertaken to determine the dependence of the Hardgrove grindability index on selected physicochemical properties of coal. The Hardgrove grindability index was determined using the available methods described in the standards, and the dependence on selected parameters was examined. A clear positive correlation with calorific value and smaller (also positive) correlations with moisture content and free swelling index was obtained. A slight negative correlation was also obtained with sulfur content.

Suggested Citation

  • Krzysztof Kogut & Vladimir Cablik & Piotr Matusiak & Daniel Kowol & Tomasz Suponik & Dawid M. Franke & Barbara Tora & Radosław Pomykała, 2021. "A Study on the Hard Coal Grindability Dependence on Selected Parameters," Energies, MDPI, vol. 14(23), pages 1-9, December.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:23:p:8158-:d:695582
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    Cited by:

    1. Michał Rejdak & Grzegorz Gałko & Marcin Sajdak & Aleksandra Wieczorek, 2022. "Stamp-Charged Coke-Making Technology—An Empirical Model for Prediction of Coal Charge Density for Stamp Charging Coke Oven Batteries," Energies, MDPI, vol. 15(24), pages 1-15, December.

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