Energy efficiency assessment of iron ore enrichment in the context of the formation of eco-industrial parks

Abstract

Goal. Assessment of the influence of textural-structural and physical-mechanical characteristics of ferruginous quartzites in deep quarries of Kryvbas on the energy efficiency of production and enrichment of raw materials during its technological processing in the conditions of formation of an eco-industrial park. Methodology. The methodological basis of the research is a systematic approach to the problem of assessing the textural, structural and physical-mechanical characteristics of ferruginous quartzites and the problems of energy efficiency and enrichment of mineral raw materials in the regional consideration of the Kryvyi Rih iron ore basin. In accordance with the specifics of research aimed at achieving the tasks set and obtaining technological dependencies, the following methods were mainly used in the work: analytical, graphoanalytic and mathematical statistics. Results. Quantitative relationships of iron content depending on the physical and mechanical characteristics of quartzites and technological enrichment indicators are revealed. It is established that when forming ore flows in the quarry, it is necessary to take into account not only the iron content of general and magnetic, but also the physical and mechanical properties of types and grades of ores, their textural and structural features, the presence of harmful impurities and the granulometric composition of ore in the quarry, which significantly affect the efficiency of the enrichment process and its energy consumption. It is noted that the increase in energy efficiency is achieved by introducing reasonable management and technological measures, taking into account the influence of textural, structural and physical-mechanical characteristics of ferruginous quartzites in the quarry on the quality indicators of further processing of mineral raw materials at the ore processing plant. Scientific novelty. The dependencies and interrelations of natural-geological, physical-mechanical, technical, organizational and environmental factors, and their combined impact on the efficiency of technological processes of extraction and processing of ferruginous quartzites, provided that rational energy consumption is observed, are established. Practical significance. The results obtained are important and useful for determining the energy efficiency of enrichment processes in the iron ore industry in the context of persistent environmental deterioration, significant fluctuations in price characteristics in the iron ore raw material markets and difficult business conditions at mining enterprises due to the negative impact of previous non-cost-effective activities and quarantine restrictions due to the global pandemic in recent years.

Keywords

• energy consumption
• ferruginous quartzites
• energy efficiency
• enrichment
• eco-industrial park