The Influence of the Sample Preparation on the Result of Coal Propensity to Spontaneous Combustion in the High-temperature Adiabatic Method

• Autorzy: Obracaj Dariusz , Korzec Marek , Vu Tien Tung

Identyfikatory

DOI

10.29227/IM-2021-02-07

• Języki publikacji: EN

Abstrakty

EN

The liability of coal to spontaneous combustion is the principal cause of mine fires. Spontaneous combustion is one of the main threats in Polish and Vietnamese coal mines. The article presents an analysis of the spontaneous combustion of coal in mines of both countries. It is related to the natural prone of coal to spontaneous heating and consequently to its self-ignition. Despite the relevant recognition of the methods of preventing this threat, in mines, spontaneous combustion occurs during the exploitation of coal seams with low and very high self-ignition tendency. Apart from the technical factors related to the design of coal seam mining, the properties of coal have a significant impact on the occurrence of spontaneous combustion. Their correct recognition is essential to the precautions against spontaneous combustion for minimalizing the risk of a mine fire. Therefore, it is necessary to study the factors influencing the propensity of coal to spontaneous heating. A review of the methods used to determine the propensity of coal to spontaneous combustion is presented in the article. Based on the high-temperature method of determining the propensity of coals to spontaneous combustion, the influence of selected factors related to samples' preparation for testing on the determination result was investigated. The influence of the fractional decomposition and the moisture content in the prepared samples on the determination result was demonstrated. The presented research results may improve research procedures for determining the propensity of coal to spontaneous combustion.

Słowa kluczowe

EN

spontaneous combustion of coal; propensity to spontaneous combustion; high-temperature method

PL

węgiel; spalanie; metody

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2021
• Tom: no. 2
• Strony: 65--78
• Opis fizyczny: Bibliogr. 33 poz., tab., wykr., zdj.

Twórcy

autor

Obracaj Dariusz

• AGH University of Science and Technology, Kraków, Poland

autor

Korzec Marek

• AGH University of Science and Technology, Kraków, Poland

autor

Vu Tien Tung

• AGH University of Science and Technology, Kraków, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).