UNIT FOR CONTROL OF EXPLOSION-RISKY CONCENTRATION OF METHANE Russian patent published in 2000 - IPC

FIELD: coal industry. SUBSTANCE: unit has fan, which is installed in dust collector. Fan is provided with hollow blades with slots in their rear side. Mounted on hollow shaft of fan is internal-combustion gas turbine. Spaces in hollow blades of fan through hollow shaft are connected with passages for control intake of air. Dust collector housing is provided with pipe connections for filling water and for draining water from housing, and with passage for delivery of air fouled with methane to chambers of internal-combustion gas turbine. Application of aforesaid embodiment of unit adds to better safety engineering and improves working conditions of miners. EFFECT: higher efficiency. 3 dwg