Complete extraction of conditioned ores from complex-structured blocks due to partial admixture of substandard ores
Rakishev B.R.
25 December 2024Saint-Petersburg Mining University
Journal of Mining Institute
2024#270919 - 930 pp.
The paper presents mining-technological substantiation of complete extraction of conditioned ores from complex-structured blocks of benches by mixing a layer of substandard ores of certain sizes. The relevance of the work consists in the development of innovative methods of establishing the parameters of the substandard layer of ores to be added to the conditioned ores. The main problem is to ensure complete extraction of useful components into concentrate from shipped ore with acceptable deviations from the required ones. A new typification of complex-structured ore blocks of the bench has been carried out. Analytical dependences of mining and geological characteristics of complex-structured ore blocks were obtained. Theoretical dependences for determining the main indicators of mineral processing are derived. Analytical dependences for determination of the content of useful component in shipped ore α – mixture of conditioned ore with the content of useful component α and admixed layer of substandard ore with the content of useful component α are offered. For the first time in mining science, a new approach of complete extraction of conditioned ores from complex-structured blocks of benches by grabbing a certain part of substandard ores during excavation, increasing the volume of extracted ore and expanding the extraction of useful components in the concentrate has been substantiated. The increment of useful components can reach 10-15 % of the total volume of extraction, which allows predicting a significant increase in the completeness of mineral extraction from the Earths interior.
admixed layers of substandard ores , complete extraction of conditioned ores , complex blocks of benches , content of useful components , mining and geological characteristics , types of blocks
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Kazakh National Research Technical University named after K.I.Satpayev (Satbayev University), Almaty, Kazakhstan
Kazakh National Research Technical University named after K.I.Satpayev (Satbayev University)
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