Developed technologies
The technology of mining alluvial placers by dry method in winter
The technology envisages the implementation of a full-scale dry mining process during the period when traditional methods cease to be effective due to sub-zero temperatures.
Following the completion of the mining season, the focus shifts to preserving traditional techniques and preparing the site for the upcoming season.
This involves insulating the area, cleaning drainage channels, and other preparatory measures. The workforce then disperses.
The proposed technique allows for resuming gold mining operations approximately one month prior to the onset of colder weather conditions. This period extends until the arrival of the first thaw, providing a duration of 6–8 months for continuous operation, contingent upon climatic factors.
Technology of dry processing of core samples
A state-of-the-art technological line for the dry processing of geological specimens has been designed and implemented, capable of handling up to 10 kilograms of samples per hour, contingent upon the material at hand. The innovative design solutions employed ensure a meticulous cleaning of the equipment from any residual grain fraction from the preceding sample, resulting in a highly representative sample.
The equipment’s uncomplicated assembly, user-friendly design, and robust construction make it an ideal choice for deployment in remote locations and operation in extreme conditions.
The production process entails the self-grinding of ores with a maximum particle size of up to 200 millimeters, followed by screening, classification, and enrichment using jigging machines and short-cone hydrocyclones. Additionally, the process involves grinding in planetary mills to produce semi-dry tailings, which proves particularly advantageous in regions with limited water resources.
This unit is capable of processing ore volumes of up to 50 tonnes.
Grinding technology using a AG and SAG grinding mill
Many scientific papers have been devoted to the issues of grinding technology using AG (self-grinding) and SAG (semi-self-grinding) mills, covering all aspects from laboratory work to practical application on a large scale. Nevertheless, research in this area continues and its results are presented at congresses and conferences.
Despite modern methods of process optimization, the specific energy consumption remains at a high level and cannot yet compete with the traditional scheme (stadium crushing and crushing in a ball mill). Therefore, the overall advantage of a scheme with AG or SAG mills does not look as bright as we would like.