MULTIFREQUENT SCREEN ASSEMBLY FOR CIECLE VIBRATING SEPARATOS Russian patent published in 2013 - IPC B07B1/40 B07B1/46 

FIELD: process engineering.

SUBSTANCE: invention relates to vibratory separators to size solids to preset values. In compliance with one version, it comprises stretched top screen, stretched bottom screen, stiff bearing frame to connect said screens to separator vibrating housing and to allows connection thereto said top screen and said bottom screen. At least, one adapter is connected to said top screen. At least, one activator is connected to said bottom screen and arranged relative to said adapter to cause collisions there between to transmit vibration thereto. This allows to set nonlinearly the characteristics of multi-frequency transmitted excitation and self-cleaning of top screen as well as deagglomeration of sieved material when said screen assembly is excited by, at least, one vibration exciter. Note here that forced frequency of said source of single-frequency excitation approximated to one of intrinsic frequencies of said bottom screen and one activator connected to said bottom screen. In compliance with another version, screen assembly is furnished with buffer elements used as single-side uncontrolled links of top screen vibrations and inertial devices connected to top screen.

EFFECT: higher efficiency and quality.

28 cl, 16 dwg