UNDERGROUND MINING WORKINGS VENTILATION METHOD DURING THE ANTICLINAL COAL DEPOSITS COMBINED DEVELOPMENT Russian patent published in 2019 - IPC E21F1/08 

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and can be used for ventilation of underground mining in the combined mining of coal deposits. Underground mines ventilation method in the synclinal coal deposits combined development includes the layers development to the effective depth by the open method, the reserves preparation and testing in the cuts sides by the underground method, central ventilation shaft or borehole performance, by ventilation ducts connected to the underground and open mine workings. In the preparation and development of mine fields in the sides of the mine, the ventilation of underground mine workings is carried out in two stages: at first, during the preparation and mining of reservoirs to a depth of 100–150 m, the underground workings are aired by temporary ventilation systems located on the windward side of the log sides, on which flexible or rigid air ducts are fixed to supply air to clearing and preparatory faces. Underground mine workings give the spent stream through the opened space to the underground ventilation openings having access to the surface into the cut open space. At the second stage, during the mine fields preparation and development in the cuts sides and under the bottom, the underground mine workings ventilation is carried out by a stationary ventilation unit located on the central ventilation shaft or well, which is located in the field syncline thicket central part of the and is carried out to the mining allotment lower layer, at that, in their interfacing points with the layers underground mine workings, ventilation distribution chambers are arranged, which perform the air geothermal heating in winter, with the possibility of controlling of the stream speed and flow to adjacent underground mine workings.

EFFECT: technical result consists in the energy consumption reduction, increase in the mining systems ventilation efficiency and the ventilation schemes simplification.

1 cl, 1 dwg