DOI: 10.18503/1995-2732-2024-22-2-33-40
Abstract
Problem Statement (Relevance). The article presents an assessment of reliability of mine hoisting machines equipped with various drive systems used in underground mining and drilling of shafts of mines under construction, which is undoubtedly a currently relevant task due to constantly increasing depths and length of underground workings associated with a decrease in the concentration of a useful component in ores. Objectives. The study aims at analyzing possible solutions applied to modernize the shaft hoisting drive system by a preliminary analysis of its reliability and lifetime. Methods Applied. The research uses methods of numerical calculation of reliability, failure rate of elements of hoisting units, a graphical analysis of main parameters of reliability to assess a reasonable selection of a lift drive system. Originality. The authors developed a method for calculating reliability of drives of hoisting units and their main parameters, carried out an element-by-element analysis of the failure rate, and gave recommendations. Result. The developed methodology will be useful in designing headframes for great depths of development and penetration of subsoil. The authors have studied a problem of reliability of the main drive systems of mine hoisting machines, whose solution will make it possible to more carefully consider and organize the safe operation of headframes for mining at great depths and penetrating vertical shafts of mines under construction. Practical Relevance. The study on the reliability parameters of hoisting units during operation at great depths is of practical importance, since the resulting dynamic loads on the drive of the hoisting unit are commensurate with weight of the load and the pulling element descending to the entire depth of the shaft, not taking into account the possible emergency braking modes.
Keywords
shaft hoisting unit, asynchronous drive, thyristor drive, reliability, failure rate, minerals
For citation
Kurochkin A.I., Gabbasov B.M., Podbolotov S.V., Usov I.G., Pikalov V.A., Gavrishev S.E. Increasing Efficiency of Performance Of Hoisting Units Operating at Great Depths of Shaft Sinking and in Mining Operations. Vestnik Magnito-gorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2024, vol. 22, no. 2, pp. 33-40. https://doi.org/10.18503/1995-2732-2024-22-2-33-40
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