A method for assessing the reliability of the planned consumer quality of ores with considering the calculated accuracy of their average content

2022

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DOI 10.51301/ejsu.2022.i4.05
Достоверность данных 70 средняя
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Аннотация

The method consists in ensuring the reliability of the planned consumer quality of ores by using non-parametric properties of the variation of unevenness, variability and uncertainty of contents, which predetermine the weighted average value of the average, according to which qualimetrically averaged aggregate and frequency integrity of contents is reproduced. The method is based on the concept of reproducing qualimetrically averaged sets of contents, zonal based on the nature of their distribution and the uniformity of their values, using the qualimetric geoindicator property of the modal concentration of ores. The fundamental difference of the method is in achieving the reliability of the planned average grade - "by areas of qualimetrically averaged grades" instead of the traditional one - "by grouped point samples", in which stabilization of the quality of ores is achieved before mining. Based on the results of qualimetric averaging of grades, qualimetric maps are compiled containing geological zones of high-quality and ordinary ores, and ores with modal grades, and consumer quality calculation blocks. In-situ-experimentally confirmed the feasibility of the minimum limits of deviations of the contents of the initial production coming to the processing and processing processes from the planned ones for the extraction sites, achieved when extracting the reserves of the reproduced sites of ordinary, high-quality, high-quality and near-edge ores. Geological and geometric bases are being created for the modernization of the processes of exploration, calculation, preparation and excavation of reserves, the costs of technical averaging are reduced, and losses of metals in mining waste and processing tailings are eliminated.