SU1651987A1 - Potato tuber cylindrical grading screen - Google Patents

Abstract

The invention relates to a device for the separation of mixtures of potatoes into fractions and can be. used in agriculture. The purpose of the invention is to improve the quality of sorting potato tubers by eliminating their mechanical damage and reducing the metal content of the sieve (P). Cells that increase along the path of the sifted material Between the C 2 segments at P 1, the natures of the strip of web 3. Perpendicular to the P 1 axis, the receiving conveyors are located under the corresponding compartments. The tubers are poured into C 2, which, under the weight of the tubers, sags, forms a recess between turns P 1. The tubers are twisted into a whirlpool and move along the P axis, not being able to approach the coils P 1 2 sludge. f fe

Description

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The invention relates to a device for separating potato mixtures into a predetermined number of fractions and can be used in agriculture.

The purpose of the invention is to improve the quality of sorting potato tubers by eliminating their mechanical damage and reducing the metal intensity of the sieve.

FIG. 1 shows a sieve, side view; in fig. 2 - arrangement of cylindrical sieves in blocks together with conveyors.

A cylindrical spring 1 with a predetermined spacing between turns is a sieve frame. The tensioned spring 1 is enclosed by segments of the nylon mesh 2 forming the screening compartments with the cells increasing along the movement of the screened material. Between the segments of the nylon mesh 2 are placed strips of the web 3, which are also tensioned on the spring 1. Perpendicular to the axis of the spring 1, conveyors 4-Q are located perpendicular to the axis of the spring 1, which receive and transport sorted fractions (arrows indicate the direction of movement of these fractions). The sieve has a feeding device in the form of a pitched board 9.

The cylindrical sieve works with the “edued image.

A cylindrical spring 1 with a net 2 rotates, from a cattle board 9, tubers are dumped onto net 2. Netting 2 under the weight of tubers, sagging, forms a recess between the coils of the spring 1, in which the tubers spin into the circulation and move along the axis of the mesh cylinder, without opportunities to approach the coils of the spring 1, since for this, the tubers must

roll out of the recess. From the last sequential sequence, the tubers pass the compartments of the net 2 with a certain cell size and fall through them in

specific location on certain conveyors 4-8.

The movement of tubers along the spring 1 is always carried out at the same speed with a certain rise upwards and in the horizontal position of the cylindrical sieve, and for each turn always passes a path equal to the step between the turns. Klui-ni filed on the grid 2 inside the cylinder, rush along the cylinder, rolling down

in the middle of the grid 2, quickly make room for the arrival of a new portion of potatoes. The axial velocity of the product determines throughput and throughput.

Claims (1)

Invention Formula A cylindrical sieve for sorting potato tubers, including a skeleton on which a number of sifters are placed, compartments with cells that increase as material moves, and receiving devices, characterized in that, in order to improve the quality of sorting potato tubers by eliminating their mechanical damage and reduction the sieve metal capacity, the sieve frame is made in the form of a cylindrical spring, and the screening compartments are in the form of nylon mesh segments installed with tension with the possibility of covering the coils of the spring and strips of the web, while the strips of the web are placed between the segments of the kapron network, and the receiving devices are located under each compartment perpendicular to the axis of the spring. Lj i k / i IBi 2