APPARATUS FOR PNEUMATIC CONVEYANCE OF POWDERED MEDIUM FROM ASH CATCHER BINS

FIELD: pneumatic conveyance system used, in particular, for removal of ash from heat-electric generating stations. ^ SUBSTANCE: apparatus has electric valve connected with its winding to pulse generator, and powdered medium flow forming device. The latter includes upright casing with valve having seat, two axially aligned air supply pipes and powdered medium discharge branch pipe, which are disposed in lower end of upright casing. First air supply pipe is introduced through upper end of casing into its cavity above valve, and outlet end of second pipe is introduced into cavity under valve, which is mounted for displacement in vertical plane between outlet ends of first and second pipes. Inlet end of first pipe is connected through upper cavity of unit defined by piston and through receiver with excessive air pressure source, and inlet end of second pipe is communicating through aperture of upright casing of said unit, said aperture being closed with piston, through lower cavity of upright casing of this unit and electric valve to excessive air pressure source. Upper part of inclined portion of apparatus is connected through powdered medium discharge branch pipe to cavity above valve of flow forming device and lower part is connected with conveyance pipeline. ^ EFFECT: increased distance of conveying materials. ^ 1 dwg