THE USE OF PRE-ENRICHMENT TECHNOLOGIES AS A RESERVE FOR INCREASING THE PROFITABILITY OF THE MINING INDUSTRY

The article is devoted to the actual problem for the mining and metallurgical industry, associated with a decrease in the profitability of production of enterprises in the industry. Since the depletion and remoteness of the material and raw material base, the involvement of poorer ores in processing and thus the complication of technological processes require significant investments and an increase in production and logistics costs, as well as elimination of the negative impact on the environment. One of the directions for solving this problem is the transition to a new technological mode. The new mode, in contrast to the traditional way, involves the massive use of technologies for the preliminary enrichment of the broken-off rock mass in the size class –1500 + 5 mm with the separation of elementary volumes of empty and low-mineralized rocks formed during the extraction and disintegration process — portions, pieces (particles) in size, material composition, physical and chemical properties with a dump content of valuable components. The process is carried out in places close to the mining sites, which will reduce traffic flows and thus, the logistics costs. Lumpy tailings of preliminary enrichment can be stored in dumps, enriched, used for dumping roads and dams, for the production of building materials. The introduction of pre-enrichment processes provides an increase in the resource base by involving off-balance ores in processing, stabilizes the composition, significantly increases the quality of raw materials for enrichment plants and the complexity of the use of raw materials, as well as decreases the negative impact of mining enterprises on the environment by reducing the amount of fine waste arising from over-grinding and the use of reagents This increases the profitability of mining operations and reduces capital intensity.

production efficiency, costs, profitability, investments, mining enterprises, chipped rock mass, preliminary enrichment, ore, concentrate, mineral resource base, technological mode.

Shulgina K. A., Kuzina L. N., Mironova Zh. V., Konev A. V., Korotkevich V. A. The use of pre-enrichment technologies as a reserve for increasing the profitability of the mining industry. Business. Education. Law, 2021, no. 3, pp. 134— 138. DOI: 10.25683/VOLBI.2021.56.334.