SU22985A1 - Sorting - Google Patents

Description

The invention relates to devices for sorting grain with sieves located one above the other, the cleaning of which from the grain stuck in them is carried out with the help of brushes fixed on cables or chains. In the proposed sorting, in order to more completely separate the varieties of grain mixtures, in sieves brought into oscillatory motion of the sieve mill are placed transverse not reaching the opposite walls of the chainJ. extending the passable grain m path.

In the schematic drawing of FIG. 1 is a front view of the sorting; FIG. 2- its top view; FIG. 3rd side view.

The sieve mill -G of the proposed sorting consists of three sieves L, B, and C, tightly interconnected by means of slats. The sieve B is supported on the D axis, around which the entire sieve mill is rotated under the influence of t g D supported on eccentrics J mounted on the shaft 3 rotated by the handle L or driven by the engine.

Under the sieves A and B there are pitched boards K made in the shape of funnels guiding the grain, falling through the upper sieves, into such a part of the lower sieve from which the grain would be forced to travel the greatest way to the sieve. In order to extend the path traveled by the grain, on the sieves in a checkerboard order pc1, the transverse non-reaching to the opposite walls of the partition M are displaced. Due to the inclined arrangement of the sieves, placement in the last partitions and oscillatory movement of the sieve mill, the grain supplied to sorting through pipe C is forced either go a long way over the sieve before descending from it, or fall through it onto the underlying sieve. The dimensions of the holes of the sieves decrease in the direction of the path traveled by the grain, as a result of which the largest grain that does not pass through the sieve is removed from the sorting in the tray of the iH, the remaining grain on the sieve B is removed from the tray O, and so on. under the sieve pan, sand and other impurities will pass from the bottom sieve. To enable sorting of grains of various sieve shapes and eccentric discs are installed in the proposed sorting

“Replaceable. For sorting grains of a spherical shape, for example, peas, sieves with elongated cuts are used, and for grains of flat, oval, etc., sieves for sieves should have round holes. From below, under each sieve, a system of brushes T is installed to remove the jammed grains, which is attached to the machine frame at points at one side and pulled up by a load from the other side. Due to the oscillatory movement of the mill 1, the brush system moves simultaneously sieves and clean them by squeezing stuck in the holes in the grain.t

The subject matter of the invention.

Sorting with a system of sieves installed one above the other, characterized in that, in order to ensure greater completeness of separation of the mixture into separate fractions, sieves A, B and B, installed in an inclined sieve mill G, brought into oscillatory motion, are provided with transverse with respect to the course of the grain, the Zh, Zh, .. partitions that do not reach the opposite sides of the sieves, and the pitched boards K, in order to direct the undersize fraction to a certain part of the surface of the underlying sieve, are made in the form of funnels.

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