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The Concept of Optimal Compaction of the Charge in the Gravitation System Using the Grains Triangle for Cokemaking Process

Author

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  • Andrzej Mianowski

    (Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze, Poland)

  • Bartosz Mertas

    (Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze, Poland)

  • Marek Ściążko

    (Institute for Chemical Processing of Coal, Zamkowa 1, 41-803 Zabrze, Poland)

Abstract

Two isomorphic sets of grains, small and large, were analysed—without specifying their dimensions—under the acronym CMC (Curve of Maximum Compression) and taking into account the effects of segregation CMCS. The proposal is particularly valuable for optimal blend preparation in the gravity system in cokemaking. The main advantage of this work is the proposal of using the grains triangle, which limits the values calculated by the relations: bulk density-share of coarse/fine grains, for different levels of moisture content. Each system of changing shares of coarse grains is characterised by a constant C, but there is no need to determine it. Compliance of the calculated value with the experimentally determined value means that the given arbitrary grain set has reached its maximum density called the “locus”. The grains triangle practically covers the vast majority of laboratory and industrial test results, and geometrically or computationally indicates the ability of a given particle size distribution to reach maximum bulk density. This paper presents analysis of the results of tests on crushing, coal briquettes, and grinding coal blend in selected mechanical systems. Results of tests on coke quality (CRI, CSR) in connection with the grain size triangle are discussed.

Suggested Citation

  • Andrzej Mianowski & Bartosz Mertas & Marek Ściążko, 2021. "The Concept of Optimal Compaction of the Charge in the Gravitation System Using the Grains Triangle for Cokemaking Process," Energies, MDPI, vol. 14(13), pages 1-23, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3911-:d:585105
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    References listed on IDEAS

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    1. Michał Rejdak & Rafał Bigda & Małgorzata Wojtaszek, 2020. "Use of Alternative Raw Materials in Coke-Making: New Insights in the Use of Lignites for Blast Furnace Coke Production," Energies, MDPI, vol. 13(11), pages 1-16, June.
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    Cited by:

    1. Marek Sciazko & Aleksander Sobolewski, 2021. "Special Issue [Energies] “Clean Utilization and Conversion Technology of Coal”," Energies, MDPI, vol. 14(15), pages 1-3, July.

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