METHOD AND APPARATUS FOR PARTICLE SEPARATION Russian patent published in 2016 - IPC B03B5/34 B04C5/26 

FIELD: mining industry.

SUBSTANCE: group of inventions relates to the dynamic separation of particles such as those resulting from crushing and grinding extracted minerals or recycled materials. According to a method a fluid with dispersed particles is subjected to a centrifugal action in at least two successive stages in order to separate particles having a different terminal velocity. For this purpose, there is a regulation step carried out in an intermediate position between the stages. Fluid coming from the first stage enters the second one axially. Regulation step comprises the introduction of a fluid between said stages. Introduced regulation fluid is provided by a rotational velocity component. Apparatus comprises at least two stages wherein a fluid with the particles dispersed therein is subjected to a centrifugal action in order to separate particles having a different terminal velocity. It comprises operating regulation means in an intermediate position between the stages. Said means comprise a channel for introducing a regulation fluid at an intermediate location between the separation stages and an intermediate mixing header. Said mixing header is located between the separation stages. Channel for introducing a regulation fluid is arranged tangentially with respect to intermediate mixing header.

EFFECT: technical result is higher separation efficiency and reliability.

8 cl, 13 dwg