SU1540772A1 - Device for sorting tea - Google Patents

Abstract

The invention relates to the tea industry, namely to devices for sorting semi-finished tea. The purpose of the invention is to increase the efficiency of the sorting process. The device for sorting tea contains a frame 1 with a feed hopper 11 and a tray 12 located between the branches of the upper tier, infinite flexible elements 2 parallelly stretched with the possibility of movement on the drums. Underneath the upper blond is the lower rus of the infinite flexible elements 3, which are pulled on the drums. Moreover, the infinite flexible elements 2 of the upper russ are installed perpendicularly to the infinite flexible elements 3 of the lower rus with the possibility of touching the lower branch of the upper rus with the upper branch of the lower rus, thereby forming a sieve sort surface 10. Tray 12 is placed between the upper and lower branches of the upper rus, those. above the surface of sorting 10. A conveyor 14 is installed between the branches of the lower rue for the sorted product. 4 il.

Description

The invention relates to the tea industry, namely, devices for sorting semi-finished tea, and can also be used in the food, chemical and other industries.

The purpose of the invention is to increase the efficiency of the sorting process.

FIG. 1 is a schematic diagram of a device for sorting tea J in FIG. 2 - the same, top view; in fig. 3 - section AA, in FIG. 1 J in FIG. 4 - view B in FIG. 3

The device for sorting tea contains frame 1 installed with the possibility of reciprocating motion. On frame 1, two Russ are mounted perpendicular to each other infinite flexible elements 2 and 3, parallel stretched on the lead 4, 5 and slave 6, 7 drums. The infinite flexible elements 2 and 3 are installed with the possibility of touching the lower branch 8 of the upper tusa with the upper branch 9 of the lower tusa, thereby forming a sieve sorting surface 10.

Parallel flexible elements 2 and 3 are located on the drums 4, 5 and 6, 7 with a certain pitch. For example, the pitch between the flexible elements 2 corresponds to the width of the cells in the sorting surface 10, and the pitch between the flexible elements 3 corresponds to their length 1 (Fig. 4).

The device is also equipped with a feed hopper 11, the tray 12 of which is placed between the branches of the upper rus, i.e. between the reels 4, 6 above the beginning of the sorting surface 10. To the tray 12 of the attached flange 13, adjacent to the flexible elements 3 and forming the side walls of the sorting surface 10. Between the branches of the lower russia, i.e. between the reels 5, 7 a conveyor 14 is placed for the sorted product.

Walls 15 are placed along the sides of the cd conveyor 14 to prevent the sorted product from spilling. The device is equipped with a drive (not shown) providing the reciprocating movement of the frame 1, as well as the rotational movement of the leading drums 4, 5 and conveyor 14. A drum 16 is placed at the drum 4 of the lower floor for a similar fraction.

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The device works as follows.

The product to be sorted is loaded into the hopper 11, from where a continuous flow through the tray 12 enters the sorting surface 10. The beads 13 prevent material from spilling from the sorting surface 10, where the material is sorted. The passage fraction is poured out and carried out of the device, and the gathering fractions are collected in collection 16 and are withdrawn for the subsequent process operation.

Making flexible elements 2 and 3 with the possibility of touching the lower branch of the upper russa formed by them with the upper branch of the lower rush allows forming a sorting surface 10 in which the flexible elements 2 and 3 are in motion while the cells of this surface 10 are stationary relative to each other friend

The movement of the flexible elements 2 and 3 causes the rotation of the particles stuck in the cells of the sorting surface 10. If a particle is stuck along or across the cell, its rotation occurs due to the movement of particles stuck in the cells of the sorting surface 10. If a particle is shot along or, across the cell, its rotation due to the movement of flexible elements 2 and 3 causes the particle to turn along the diagonal of the cells. The diagonal of the rectangular cell exceeds its longitudinal and transverse dimensions, and this particle falls into the pass-through fraction through this cell. If a particle is shot along the diagonal of a cell, then it is a component of the similar fraction. For such a particle, rotation due to the movement of the flexible elements 2 and 3 causes it to rotate along or across the cell. At the same time, the size of the particle circumference is reduced and the particle is raised, from where it is entrained by the layer of material due to oscillatory movements of the frame 1 and, accordingly, of each cell. Depending on the material, the sorting surface 10 may cut a large particle into two components. For example, semi-finished particles are brittle (their moisture content is only 4%). Therefore, if a part of such a particle falls into the cell, and the rest cannot pass due to the large dimensions that exceed the diagonal of the cell, then this particle falls into the cell between the flexible elements 2, 3 moving in one direction and is cut. As a result, the part that passes into the cell falls into the passage fraction, and the rest part moves to the gathering. The sorting surface 10 also performs self-cleaning in the case of sorting sticky material. This is accomplished by adhering the flexible elements 2 and 3 to each other. Such an arrangement during the movement of the flexible elements 2 and 3 ensures the detachment of adhered particles from one of the flexible elements by means of another.

 Thus, the device does not require additional cleaning mechanisms, which reduces its mass and the economic costs of their manufacture and operation. In addition, it is characterized by a higher cleaning efficiency, which provides not only pushing of the stuck particles from the cells of the sorting surface, but also the separation of particles on the circuit 407726

Additional and passageways, as well as the release of surfaces from particles adhering to them. High cleaning efficiency, in turn, eliminates the possibility of clogging the surface of the screen, which ensures high screening efficiency.

Claims (1)

Invention Formula A device for sorting tea, which contains two Ruses perpendicular to each other endless flexible elements parallel to the strained drums mounted on a common frame, a hopper with a tray, a collection of a sorted product, characterized in that, in order to increase the efficiency of the sorting process, endless flexible elements installed with the possibility of touching the lower branch of the upper rus with the upper branch of the lower rus to form a sorted sorting surface with the tray of the feed bin placed m Between the branches of the upper rus, and a collection of sorted product — between the branches of the lower rus. Fig.z FIG, b