Analysis of Stoppages in the Process of Roadway Drivage Caused by Exceeding the Maximum Allowable Level of Methane Concentration

• Autorzy: Jarosław Brodny , Magdalena Tutak , Dariusz Felka , Dorota Pałka
• Języki publikacji: EN

Abstrakty

EN

Methane is one of the most dangerous gases occurring in mining production. Being inseparably connected with the rock mass, it presents a serious risk to occupational safety and reduces the effectiveness of mining production. A particularly high methane hazard occurs directly during exploitation in longwall headings and the drivage of roadways. Exceeding the maximum allowable level of its concentration in these headings makes it necessary to disconnect all machines until this concentration level is reduced. This leads to unscheduled downtimes of such machines, thus increasing the costs of their operation and decreasing their effectiveness. The paper demonstrates the results from the analysis of machine downtimes in the drivage of roadways, caused by excessive methane concentration levels. The analyses were based on the indications from the system for automatic monitoring of the ventilation parameters in this heading. The results obtained clearly demonstrated that exceeded values of methane concentration caused a series of unexpected downtimes in the drivage process. As a result, the process was disturbed and its effectiveness reduced. The presented analyses are one of the first to address the issue of how methane emissions affect machine downtimes. However, this phenomenon represents a major problem that needs to be addressed comprehensively in order to minimise the losses arising out of the necessary disruptions to the exploitation process. (original abstract)

Słowa kluczowe

PL

Górnictwo; Identyfikacja zagrożeń bezpieczeństwa; Gaz ziemny

EN

Mining sector; Safety risk identification; Natural gas

• Czasopismo: New Trends in Production Engineering
• Rocznik: 2020
• Tom: 3(1) Selected Aspects of Production Engineering in Management and Materials Engineering
• Strony: 197-210

Twórcy

autor

Jarosław Brodny

• Silesian University of Technology, Poland

autor

Magdalena Tutak

• Silesian University of Technology, Poland

autor

Dariusz Felka

• Łukasiewicz Research Network, Institute of Innovative Technologies EMAG, Poland

autor

Dorota Pałka

• Silesian University of Technology, Poland

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Identyfikatory

DOI

10.2478/ntpe-2020-0016