MULTI-SIEVE VIBRATION SCREEN Russian patent published in 2010 - IPC B07B1/40 B07B1/46 

FIELD: process engineering.

SUBSTANCE: invention relates to bulk material sorting equipment, namely to multi-sieve vibration screens and can be used at crushing-and-screening and enrichment plants. Proposed screen comprises box articulated with vibration drive and carrying detachable screens that comprises screening surface, loading discharging appliances. Rigid flat chutes are arranged above all screens, except for bottom screen, inclined towards the side opposite the sorted material transfer direction to allow reloading of mesh minus onto screen arranged behind it. Chute inclination angle exceeds the angle of friction of carried material on chutes surfaces. Each chute has normally oriented screens and adjoining section with its height not smaller than screen mesh.

EFFECT: higher efficiency.

3 cl, 2 dwg