Authors: I.L. Kravchuk, L.I. Andreeva

Title of the article: Risk assessment of the operation of mining machinery and equipment in the changing operation conditions of a mining enterprise

Year: 2023, Issue: 4, Pages: 36-47

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.68:622.86

DOI: 10.26730/1816-4528-2023-4-36-47

Abstract: The article presents the results of the analysis of the causes of equipment failures, mainly related to the inefficient organization of repair maintenance of machines and a number of external factors. The trends of risk management at mining enterprises are analyzed and the relevance of the formation of a system of control and risk management of mining equipment operation at mining enterprises is substantiated. Risk management at domestic mining enterprises and the implementation of a risk-based approach is characterized by features related to the identification of production hazards and the economic feasibility of investing. A logical model for the occurrence of machine failure is proposed, based on a gradual change in the parameters of subsystems, which allows to control the processes of wear, corrosion and deformation by removing damage information from specific nodes. You can also assess the state of the system as a whole and predict a breakdown. On this basis, an assessment of the criticality of failures was carried out, the purpose of which was to check the sufficiency and control of the management decisions made. The structure of the main tasks of operation risk management has been formed: tasks of maximum risk, hazard identification, risk analysis of equipment operation, forecast of the technical condition of equipment. Examples of forecasting risks during the operation of the excavation and loading equipment at mining enterprises are given, allowing to calculate in advance the vector of the defect development, which can lead to a stop of the mining machine

Key words: mining enterprise demand for equipment financial costs procurement policy change of parameters risk management operational risk management regularity of risk manifestation criticality of failures

Receiving date: 08.02.2023

Approval date: 01.09.2023

Publication date: 12.09.2023

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