SECTIONAL VENTILATION SHAFT VENTILATING AND HEATING PLANT Russian patent published in 2019 - IPC E21F1/08 

FIELD: mining.

SUBSTANCE: present invention relates to the mining industry and can be used for the oil boreholes sectional ventilation through the located on one site ventilation shafts. Invention provides for the site arrangement with air supply and ventilation shafts with the shaft ventilating and heating plant for the sectional ventilation, including connected to the suction channel operational and standby fans, auxiliary channels and switching flaps, changing the plant operating mode from direct to reverse. At that, the flaps are crosswise placed in the switching unit, installed at the intersection point of the suction channel, connected to the ventilation shafts auxiliary channels, and vertical air supply channel equipped with the air heater heat exchangers.

EFFECT: technical result consists in provision of the heated in the air heater air supply both in the forward and reverse modes, reduction of air pressure losses in the plant ducts and the capital costs reduction during the plant construction.

3 cl, 6 dwg