POLYURETHANE VIBRATION SIEVE Russian patent published in 2022 - IPC B07B1/46 

FIELD: sieve equipment.

SUBSTANCE: invention relates to molded polyurethane sieves. A vibration sieve contains a flexible molded polyurethane case with essentially side edge sections opposite each other, a lower edge section between side edge sections, and an upper edge section between side edge sections, opposite to the lower edge section, an upper surface, a lower surface, the first and the second elements forming sieving holes. The first elements pass between side edge sections, and the second elements pass between the lower edge section and the upper edge section. The third and the fourth elements have a thickness greater than that of the first and the second elements. The third elements pass between side edge sections and have a set of first elements located between them. The fourth elements pass transversely between the lower edge section and the upper edge section and have a set of seconds elements located between them. The first reinforcement elements are molded together with the third and the fourth elements.

EFFECT: increase in the wear resistance of the sieve.

14 cl, 9 dwg