CENTRIFUGAL CLASSIFIER Russian patent published in 2002 - IPC

FIELD: devices for separation of loose materials; applicable in construction, chemical, mining and other industries. SUBSTANCE: centrifugal classifier includes cylindrical-conical body with cover, unloading branch pipe and coarse product discharge hole in body lower part, internal cylindrical-conical shell installed in a spaced radial relation to body with inlet pipe for supply of initial material and transporting air, and introduced in a spaced relation to shell lower hole, cylindrical-conical deflector with cover located above inlet pipe for supply of initial material, twisting blades located between cylindrical parts of deflector and internal cylindrical-conical shell at least one inlet pipe for supply of secondary air and tangentially introduced into channel between body and cylindrical-conical shell. Direction of tangential twisting of secondary air flow corresponds to direction of transporting air flow twisting in twisting blades. EFFECT: higher efficiency of centrifugal classification and increased range of regulation of separation boundary. 3 dwg