DEVICE FOR CLASSIFYING SOLID PARTICLES Russian patent published in 2008 - IPC B03B5/32 

FIELD: separation solids from solids.

SUBSTANCE: device comprises cylindrical tank with vertical longitudinal axis, means for setting the pulp in rotation around the longitudinal axis of the tank made of branch pipes that are arranged tangentially with respect to the housing and used for supplying pulp, and blade swirler made of an unmovable screw mounted coaxially to the longitudinal axis of the tank. The housing of the tank is sectional. Each section excluding bottom and top section is made of a shell whose bottom end is provided with a ring chute. The inner wall of the chute is parallel to the inner surface of the envelope and is mounted with a spaced relation to the envelope. The outer wall is mounted with a spaced relation to the outer side of the shell. The face of the shell is mounted with a spaced relation to the bottom of the chute, and space of the chute is connected with the tank for receiving particles.

EFFECT: enhanced quality of classification.

5 cl, 4 dwg