| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to vibratory screen with sieving surface shaped to multiple parallel sieve webs. It can be used for fractionation of crushed stone and gravel. This sieve comprises multiple structural elements and multiple sieve webs articulated with said bearing elements side-by-side. Every said web has opposite ends directed downward from sieve web through first distance and ledge arranged there between asymmetrically spaced from said opposite ends and directed downward from sieve web through second distance. Said second distance is larger than first distance of end located nearby said ledge. Appropriate ends of two adjacent webs can be received by every bearing element while first surface of said ledge can contact with bearing element outer surface.EFFECT: higher efficiency of sieving, simplified design.17 cl, 5 dwg |
