Abstract
This paper concerns problems related to the mechanical processing of mineral raw materials. The aspects explored were limited to the analysis of comminution technologies in terms of their effectiveness and energy consumption, modeling and simulation approaches, the assessment of crushing results, and environmental aspects. This article includes investigation of new technologies of comminution, comparing HPGR, high-voltage pulses, and electromagnetic mills. In the area of modeling and optimization, special attention was paid to the approximation of the particle size distribution of crushing products by means of Weibull, log-normal, and logistic functions. Crushing products with an increased content of fines were well characterized by Weibull’s distribution, while log-normal function adequately described HPGR products with a relatively low content of fines.
Highlights
The processing technology used for mineral raw materials is crucial in terms of the production of numerous metals and non-metallic products sourced and extracted by means of mining techniques
Despite its complexity and the application of many physical, mechanical, chemical, and other types of separation processes and operations, ore mineral processing can generally be divided into two overarching stages: (a) reduction in the size of the feed material; separation of useful mineral from the gangue
Laboratory practice shows that if electric pulses are not adjusted to the material properties, there is no improvement in the effectiveness of liberation compared to using mechanical comminution techniques
Summary
The processing technology used for mineral raw materials is crucial in terms of the production of numerous metals and non-metallic products sourced and extracted by means of mining techniques. The separation product contains a significant amount of useful compounds (lower part of Figure 1) This situation applies to ore enrichment, which are generally divided into ferrous and non-ferrous minerals (i.e., cupriferous, gold or silver-bearing, and other metals except for iron). Terms of decreasing the negative impact of mechanical processing operations on the envitheir performance effectiveness is relatively low and has an inverse relationship to the size ronment and society; in particular, attention has been paid to harmful and annoying emisof the crushed material. Comminution energy utilization is higher performance effectiveness is relatively low and has an inverse relationship to the size of in crushers, in impact crushers It is dependent on the type of raw the crushed material.
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