Разработка рекомендаций по обеспечению оптимального режима процессов тепломассообмена при круглогодичном кучном выщелачивании золота в условиях криолитозоны = Development of recommendations for ensuring the optimal regime of heat and mass transfer processes during year-round heap gold leaching under the conditions of permatozone

The issues of extending the period of heap leaching of gold in the area of permafrost are considered. A mathematical model has been developed and multivariate calculations have been carried out to predict the thermal regime of the ore stack in the process of gold leaching in different periods of the year. The calculations were carried out for the climatic conditions of the Verkhoyansk region of Yakutia. Calculation options include the start date of the heap leaching process and how the stack is insulated. It is shown that there is a direct and close relationship between the start date of leaching and the methods of thermal insulation. The right choice of stack thermal insulation methods, depending on the start date of the leaching process, will significantly reduce the cost of thermal insulation materials that are scarce in a remote region and reduce gold losses due to the temperature factor.