Production performance evaluation of the hoisting systems at an underground gold mine

• Autorzy: Mashingaidze Melvin Mununuri , Bukasa Pitchou Mukendi , Mupeti Richard T.

Identyfikatory

DOI

10.24425/ams.2025.154161

• Języki publikacji: EN

Abstrakty

EN

The production performance of two hoisting systems operating in series at an underground gold mine was evaluated based on several key performance indicators (KPIs). All the KPIs were lower than the mining industry benchmarks, mainly due to lengthy and recurrent machine downtimes. Frequent breakdowns, power cuts, poor maintainability, and shaft flooding were some of the factors affecting the overall performance of these systems, as captured on the developed Fishbone Diagram. The average cycle times were much longer than expected, and the production rates were significantly lower at a 5% significance level than the requisite 160 tonnes per day. There were mismatches in the throughputs of the hoisting systems, indicating an unbalanced hauling process. Therefore, the current maintenance strategy for the hoisting systems warrants review in order to cut downtime. Alternative power sources are needed to complement electricity from the national power grid. The methods, findings, and data analysis techniques applied in this study can be used for evaluating the performance of mining equipment elsewhere, benchmarking and optimisation functions.

Słowa kluczowe

EN

production and maintenance performance; hoisting system; hoist cycle time; mining key performance indicators; Fishbone Diagram; mine productivity

PL

system wyciągowy; górnictwo; kopalnia

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2025
• Tom: Vol. 70, no. 1
• Strony: 29--44
• Opis fizyczny: Bibliogr. 31 poz., rys., wykr.

Twórcy

autor

Mashingaidze Melvin Mununuri

• University of Namibia, Mining and Metallurgical Engineering, Namibia

• https://orcid.org/0000-0002-7558-8369

autor

Bukasa Pitchou Mukendi

• University of Namibia, Mining and Metallurgical Engineering, Namibia

• https://orcid.org/0000-0001-6088-1135

autor

Mupeti Richard T.

• University of Namibia, Mining and Metallurgical Engineering, Namibia

• https://orcid.org/0009-0007-5860-0817

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025)