VIBRATING SCREEN Russian patent published in 2017 - IPC B07B1/40 B07B1/46 

FIELD: mining.

SUBSTANCE: vibrating screen contains a mounted on elastic supports carrying box with a bottom and sides and a vibratory drive kinematically associated with it and having inclined side screening surfaces, converging in the direction of the bottom. The bottom is also a screening surface and forms with the inclined side screening surfacess a sieve having a form of a tray opened from the discharge end side. The determining size of the openings of the side screening surfaces is less than the determining size of the sieve bottom openings. Internal inclination angle of the screening surfaces planes to the bottom plane is 110-135 degrees. The determining sizes of said openings are in the ratio: P_side/P_bottom= 0.7-0.9, where P_side is the determining size of the openings of the side screening surfaces, P_bottom is the determining size of the sieve bottom openings.

EFFECT: increased screening efficiency.

3 cl, 1 dwg, 3 tbl