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Stamp-Charged Coke-Making Technology—An Empirical Model for Prediction of Coal Charge Density for Stamp Charging Coke Oven Batteries

Author

Listed:
  • Michał Rejdak

    (Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland)

  • Grzegorz Gałko

    (Institute of Energy and Fuel Processing Technology, 41-803 Zabrze, Poland)

  • Marcin Sajdak

    (Department of Air Protection, Faculty of Energy and Environmental Engineering, Silesian University of Technology in Gliwice, 44-100 Gliwice, Poland
    School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK)

  • Aleksandra Wieczorek

    (Zarmen sp. z o.o., 00-867 Warszawa, Poland)

Abstract

Coke-making technology utilises two systems for charging the coke oven chambers with coal—a stamp-charged system (stamp-charging) and a gravity charged system (top charging). The presented study examines the impact of selected coal properties on the effectivity of the stamping operation by measuring the bulk density of the obtained stamped coal cake. An empirical mathematical model was developed that allows the forecasting of the coal cake density based on the most frequently assessed coal parameters, such as volatile matter, ash, moisture and particle size parameters, as well as the stamping operation parameter—cumulative stamping energy. The obtained results showed that the density of the stamped coal cake increases with the increase in the stamping energy (53.3 kg/m 3 increase, for increase in natural logarithm value of 1), RRSB specific coal particle diameter d′ (6.4 kg/m 3 increase, for each 0.1 mm increase in d′), ash content (8.9 kg/m 3 increase, for 1% point increase) and moisture content (4 kg/m 3 increase, for 1% point increase), and decreases with the increase in volatile matter content (3.82 kg/m 3 decrease, for 1% point increase).

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9440-:d:1002227
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    References listed on IDEAS

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    1. Marian Niesler & Janusz Stecko & Sławomir Stelmach & Anna Kwiecińska-Mydlak, 2021. "Biochars in Iron Ores Sintering Process: Effect on Sinter Quality and Emission," Energies, MDPI, vol. 14(13), pages 1-20, June.
    2. Adam Duda & Gregorio Fidalgo Valverde, 2021. "The Economics of Coking Coal Mining: A Fossil Fuel Still Needed for Steel Production," Energies, MDPI, vol. 14(22), pages 1-12, November.
    3. Michał Rejdak & Andrzej Strugała & Aleksander Sobolewski, 2021. "Stamp-Charged Coke-Making Technology—The Effect of Charge Density and the Addition of Semi-Soft Coals on the Structural, Textural and Quality Parameters of Coke," Energies, MDPI, vol. 14(12), pages 1-31, June.
    4. 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.
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