UNDERGROUND MINING METHOD OF MINERAL DEPOSITS Russian patent published in 2020 - IPC E21C41/16 E21F13/08 

FIELD: extraction of minerals.

SUBSTANCE: invention relates to extraction of minerals from placer deposits by closed (mine) method, and can be used in heavy conditions of the North at development of underground deposits of minerals, in particular gold, with further conveyor transportation of rock. Method includes formation of underground mines for preparation of zones of rock extraction and loading, performance of continuous loading and unloading works by means of robotics and further transportation of rock by conveyor method to destination, wherein continuous transportation of rock is carried out by forming a spatially bend closed path, along which a conveyor line is laid, running from the surface along an inclined shaft connected to the underground mine, and then along the working and other inclined shaft to the surface, wherein conveyor traction member is made with cargo compartments distributed throughout its length, with possibility of retaining rocks in them during transportation along inclined sections of route, and the conveyor line is started from the electric drive arranged on the surface to allow movement of empty cargo compartments along the surface and the inclined shaft to the rock loading zone, and after their loading by the rock further movement along the other post to the surface with subsequent unloading and process repetition.

EFFECT: simple and high technological effectiveness of the method.

1 cl, 1 dwg