DEVICE FOR DEDUSTING OF INTRAMINE VENTILATION AIR FLOWS Russian patent published in 2003 - IPC

FIELD: ventilation of air flows in underground workings of mining enterprises. SUBSTANCE: device includes impeller of axial fan with electric motor, dust-air receiving channels square in cross-section accommodating sprinkless and hydraulic washers, mixing chamber, straight-flow cyclone with slime discharge slot, slime discharge member and three-diffuser branch pipe with guide diffusers. Hydrodynamic washers are made in the form of rectangular frames crosswise conjugated by vertical central axis. Installed inside each frame, across its entire width are vertical metal deflecting strips with interval between them equal to frame width. Deflecting strips in washer working position are located at an angle of 45 deg to direction of air flow to be dedusted. Walls of guide diffusers of three-diffuser branch pipe are made in the form of rectangular cones. EFFECT: development of monoblock device with stable operation and reduced labor and power intakes for device manufacture and operation; higher efficiency of air cleaning from dust including finely divided fractions. 2 dwg