| Annotation |
PJSC \"Priargunskoye Production Mining and Chemical Association\" (PJSC PPGHO) has been mining rock uranium ores since 1968. The overwhelming volume of ore is extracted by the \"horizontal layers with a hardening bookmark\" system. The cost of the extracted ore is very high.
Over a fairly long period of field operation, the raw material base has been largely depleted. The applied mining technology does not provide a cost-effective production of finished products of the enterprise \"nitrous oxide-uranium oxides\". A massive transition to physical and chemical technologies for the extraction and processing of uranium ores could ensure profitable production, but this requires a geological and economic reassessment of the remaining reserves of uranium ores.
The object of the research is uranium mines.
The subject is presented by the geological and economic assessment of ore uranium deposits.
The purpose of the study is to adapt the methodology of geological and economic assessment of deposits to the conditions of mining uranium deposits.
The objective of the study is to establish the dependences of the economic indicators of the development of uranium deposits on the mining and geological characteristics of these deposits.
The research methodology is the collection of initial information, its mathematical and statistical processing, and establishment of relationships between indicators, the formulation of methods of geological and economic assessment of uranium deposits.
The research methods are presented by mathematical statistics. The article proposes a method for automated recalculation of uranium ore deposits according to changing operational conditions.
The methodology is based on the following conditions:
– close dependence of changes in the reserves of uranium ores in the subsurface on the onboard content of uranium and the power of rock inclusion in the contour of the ore body.
– identity of the linear reserves of uranium ores with the volume indicators of the reserves of these ores.
The calculations, performed according to this method on the basis of the reserves of the conditional operational block, mineralization parameters which correspond to the average ore indicators of the Streltsovsky ore field deposits, have allowed to generally assess the remaining reserves and recommend this method for use on an industrial scale. The results of calculations show that the remaining reserves can provide a cost-effective production of uranium nitrous oxide at a price of $ 60 per kg, while the profitability of production will be 19 %
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