Gravity method of operational control of the iron content in crushed mining mass

A. Azaryan N. Krapivny
Received 23.11.2022, Revised 18.01.2022, Accepted 25.04.2023
Abstract

Purpose. To investigate the possibility of operational control of the content of a useful component in oxidized hematite ores in the range from 30 to 68 percent of iron content with a granulometric composition of -3 mm. Research method is gravity. Scientific novelty. Establishing a stable correlation between specific gravity and iron content in crushed ore, as well as the combined use of fuzzy logic, neural networks to detect dependence parameters and obtain the most accurate result, and the gravity method. The advantage of the proposed method in comparison with other geophysical methods is the speed and cost of express analysis of one sample, which is about an order of magnitude lower than the existing ones. In addition, this method does not require the use of radioactive radiation sources, which simplifies the analysis procedure and does not require obtaining permits and serious control over this type of equipment, which in turn increases safety and occupational health at the enterprise by an order of magnitude. Practical significance of the proposed device in the mining industry of Ukraine is obtaining analysis results as quickly as possible, reduce the cost of analysis of one sample, and reduce ore losses and clogging of mined mass, which will expand the country's raw material base. Results. In terms of all the requirements for operational control of iron content in hematite ores, the gravity method is not inferior to known geophysical methods, such as nuclear-physical, magnetometric, ultrasonic, acoustic, radiometric, and others, depending on the physical and mechanical properties of minerals. The article presents the main points of operation of this method and the requirements for the use of express analysis of hematite ores by the gravity method. Also presented is a block diagram of the algorithm of such a system and its main components, such as electronic scales, a press, a manometer, a cuvette with a sample, and a personal computer. As a result of the research, software was also developed, which ensures the stable operation of the system and performs all calculations and transformations, its main characteristics were also described in this article

Keywords:
specific gravity; neural networks; artificial intelligence; fuzzy logic; gravity; hematite; granulometric; compaction

Retrieved from Vol. 57, No. 1, 2023

Pages 74–77

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Azaryan, A., & Krapivny, N. (2023). Gravity method of operational control of the iron content in crushed mining mass. Mining Journal of Kryvyi Rih National University, 57(1), 74-77.
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