DEVICE AND METHOD FOR FEEDING LOOSE SOLID CRYOGENIC SUBSTANCE INTO COMPRESSED AIR FLOW Russian patent published in 2024 - IPC B24C3/06 B24C1/00 B24C5/00 B24C7/00 B24C9/00 

FIELD: technological processes.

SUBSTANCE: invention relates to transfer of particles into compressed air flow. Particle transfer feeder comprises a housing made with inlet and outlet channels for the compressed gas medium flow, a rotor, installed with possibility of rotation around axis of rotation and provided with at least one recess made on said peripheral surface, and installed in housing seal, having an inner cylindrical surface in contact with a part of said peripheral surface of the rotor. Seal comprises at least one opening for receiving particles from said source with atmospheric pressure and supplying said particles with atmospheric pressure into said recess on peripheral surface of rotor, at least one opening for discharging said particles into said traffic flow at a pressure higher than atmospheric pressure from said recess and receiving a portion of said traffic flow inside the recess, followed by pressure build-up in the recess, and at least one through pressure release channel, and at least one filter element located in said channel.

EFFECT: as a result, reliability and efficiency of the cleaning process is increased and the time of use of the rotor and seals during their wear is prolonged.

14 cl, 14 dwg