METHOD FOR FORMING DUMPS WITH THE SEPARATION OF THE ENRICHED FINE FRACTION Russian patent published in 2023 - IPC E21C41/32 E21C47/00 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and can be used in the formation of dumps from mineralized enclosing rocks, for which, in the process of explosive loosening, the formation of a fine fraction enriched with a useful component is typical. The method for forming dumps with separation of enriched fine fraction includes unloading rock mass from a dump truck to the working platform of a dump reloader, moving the rock mass along the working platform with entering a pit for subsequent excavation and laying in a dump with a dragline excavator. The rock mass enters the work site with rigid rods located at a distance from each other to separate the large-sized rock mass and absorb shock loads. To increase the separation efficiency, the working platform performs multidirectional oscillatory movements by means of an additionally installed vibration exciter of transverse vibrations, which acts in turn with the vibration exciter of longitudinal vibrations. The enriched fine fraction sifted through the slots of the screen is concentrated in the accumulator and sent to the bunker by the pneumatic conveying system through the pipeline.

EFFECT: increasing the extraction of a useful component, expanding the functionality of mining equipment, increasing the technological efficiency of mining operations.

1 cl, 2 dwg