Domozhirov D.V. On the Issue of Increasing Efficiency of Mining and Processing of Mineral Raw Materials by Controlling the Parameters of Drilling and Blasting Operations to Achieve Quality Requirements

DOI: 10.18503/1995-2732-2023-21-1-5-14

Abstract

Problem Statement (Relevance). The article proposes the concept of a selective preparation of mineral raw materials by controlling the parameters of drilling and blasting operations, taking into account the quality requirements at the stages of extraction and processing. The requirements for the quality of the preparation for excavation are considered from three main positions: geometry of receiving openings, requirements for the quality of mineral raw materials and types of commercial products, and safety of blasting operations. The parameters of drilling and blasting operations are determined based on the cyclic transformation of disintegration products in the processes of preparation of mineral raw materials during extraction and processing. Disintegration is understood in this research as the selective destruction (softening) of an array (structural parting) into individual particles (fragments) or lumps with formed contrasting struc-tural elements of exposure and separation. Objectives. The article is aimed at providing a rationale for the parameters of drilling and blasting operations used to disintegrate mineral raw materials in compliance with the principle of the selective formation of a contrasting structural element of exposure and separation for every process of the preparation of open geotechnology and the dressing stage. Methods Applied. An integrated approach was used to achieve this objective. Such integrated approach within the framework of the study includes methods of scientific analysis of published Russian and foreign studies, analysis of analytical and empirical dependencies for comparison with the results of practical research. Result. The proposed concept of the selective preparation contributes to increasing efficiency of extraction and processing of mineral raw materials by controlling the parameters of drilling and blasting operations.

Keywords

mineral raw materials, preparation, drilling and blasting operations, disintegration, texture, structure, extraction, processing, quality parameters

For citation

Domozhirov D.V. On the Issue of Increasing Efficiency of Mining and Processing of Mineral Raw Materials by Controlling the Parameters of Drilling and Blasting Operations to Achieve Quality Requirements. Vestnik Magnitogor-skogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Tech-nical University]. 2023, vol. 21, no. 1, pp. 5-14. https://doi.org/10.18503/1995-2732-2023-21-1-5-14

Dmitry V. Domozhirov – PhD (Eng.), Associate Professor, Associate Professor of the Department of Mineral Deposits Development, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-9904-5820

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