CYLINDRICAL SLOT SIEVE Russian patent published in 2023 - IPC B07B1/22 

FIELD: agricultural engineering.

SUBSTANCE: invention is intended for cleaning grain from small impurities and performs the functions of a sowing sieve. A cylindrical slotted sieve contains two half-cylinders with a sieve working surface, an upper and lower half-ring, racks, an upper and lower shell. The working surface of slotted sieves is formed by round longitudinal and transverse bridges. Cross jumpers have a four-row interweaving. The sieve posts are connected at one end to the lower shell, and at the other, through a ring, to the upper shell, forming the sieve frame. The racks have side grooves along the generatrix corresponding to the height of the semi-cylinders, allowing free entry of the generatrix semi-cylinders into them. Longitudinal bridges are made with a diameter of three quarters of the width of the slot openings. The diameter of the transverse jumpers is two times smaller than the longitudinal ones.

EFFECT: improvement in the quality of purification from small impurities, as well as increase in productivity.

3 cl, 6 dwg