METHOD OF MINE WORKING AIR ISOLATION Russian patent published in 2002 - IPC

FIELD: mining, particularly, methods of air isolation of mine workings in mining of mineral deposits under underground conditions. SUBSTANCE: method is characterized by the fact that construction and sealing of stoppings in mine workings are performed by erection of forms and delivery of components for formation of polymer material composition. Composition components are supplied by dosing device to sprayer which ensures their mixing, transportation and spraying into interforms spaces. Supply of components to dosing device and to sprayer is regulated by gate valves. Prior to supply of material composition, sealing surface of existing stoppings is treated by wetting composition. Filling of interforms spaces is made layer by layer and by distributing spraying. Formation of air- isolating layer is provided by thickness equivalent by air-isolating properties to thickness of ventilation stopping. EFFECT: provided full air isolation of mine workings and sealing of surfaces of existing ventilation stoppings, reduced material and labor inputs. 3 dwg, 2 tbl