LOOSE MIXTURES PNEUMATIC SEPARATOR Russian patent published in 2024 - IPC B07B4/02 

FIELD: various technological processes.

SUBSTANCE: proposed invention relates to devices for air separation of loose materials and can be used in agriculture for preliminary cleaning of grain, for preparation of seeds for sowing and for breeding purposes, as well as in food, chemical and other industries, when separation of loose mixtures by aerodynamic properties is required. Pneumatic separator of loose mixtures includes a separation channel with a feeding device in the upper part, made in the form of a bin with two drums located in its lower part, installed with a gap to each other not exceeding the size of separated particles with possibility of rotation towards each other, fraction sampling devices are located in the lower part of the separating channel, and a fan for creating an air flow is located at the end of the separating channel. Feed device is configured to feed initial material into separating channel at rate of 2-6 metres per second. Separating channel is made with height gradually decreasing in 1.5-2.5 times in direction of air flow movement.

EFFECT: improved quality of separation of loose mixtures.

1 cl, 1 dwg