SU869855A1 - Friction-type vibration separator - Google Patents

Description

(54) FRICTION VIBRATION SEPARATOR

The invention relates to the field of agriculture and can be used for cleaning and sorting seeds of agricultural crops according to a complex of physical and mechanical properties (degree of elasticity and roughness, as well as shape). Friction vibroseparators including a funnel-shaped separating surface are known; a drive in the form of a vibrator informing the latter of spatial oscillations, a feeding device and receivers of separation products 1. The disadvantage is an insufficiently clear separation of the grain mixture by its surface properties (roughness, elasticity and shape). A known vibratory machine for cleaning and sorting seeds, including a conical friction oscillating surface, drives this surface in the form of a vibrator, a charging device and receivers of separation products 2. This machine produces a separation of seeds according to a complex of friction and elastic properties. The separation process is as follows. From the loading device, the seed mixture enters the working surface, to which spatial oscillations are communicated by means of an unbalance vibrator. Due to the fact that the friction surface is made in the form of a conical funnel, under the action of vibrations, the material particles are more roughened, flat, less elastic move upwards and fall into the upper fraction receivers, and the particles are smoother, rounded, elastic roll down and fall to receivers of the lower fraction. The disadvantage of the described separator is the insufficient quality of separation of the seed mixture into two fractions, due to the formation of a difficult zone at the place of loading of the seed mixture. A frictional vibration separator is known, which includes a funnel-shaped separating surface divided into sections, a loading device, receivers of separation products, a drive, a vibrator 3.

In the known separator, the quality of the separation process is not ensured, since the zone at the loading point of the initial mixture is not passable, thus increasing the sepoHtHOCTb mutual collision of the particles of the processed material.

The aim of the invention is to improve the quality of cleaning and sorting of seeds according to the complex of their frictional and elastic properties and shape.

The goal is achieved by the fact that each section of the separating surface at the loading site of the initial mixture is made concave, monotonously passing to the receivers of the separation products in the convexity.

FIG. 1 shows a schematic structural diagram of the proposed friction vibroseparator; in fig. 2 - diagram of the working body of the friction vibroseparator; in fig. 3 shows a process for the separation of seed mixtures into vibrodecks.

The friction vibroseparator includes a funnel-shaped separating surface 1, a drive with a vibrator 2, which gives the latter spatial oscillations; feeding devices 3, receivers 4-7 of separation products.

The separating surface 1 is divided into sections 8, each of which together loading the initial mixture is concave, the concavity decreasing in the direction of movement of the material being processed, and the transition to the bulge is monotonous. The separating surface is fixed on the vibrating table 9 with the help of kerchiefs 10.

The vibrotable 9 is mounted on springs 11 disposed at equal distances from each other circumferentially on the base plate 12 of the frame 13. The vibrator 2 is driven from the electric motor 14 through the speed variator 15.

The friction vibratory separator for cleaning and sorting seeds works as follows.

The feeding device 3 supplies the initial seed mixture to each section of the working surface in the area of concavity. Under the influence of the vibration effects of the non-perforated friction surface 1, the seed mixture is divided down the concave section of the section 8, rolled round (completed), elastic, smooth, i.e. biologically most valuable seeds of the main crop, enter the receiver 4 and make up the target fraction (seed or food material).

Upwardly, along the concave section of section 8, mostly dead litter is moving,

weed seeds go to receiver 5 and make waste. The undivided fraction is moved further along the section to the convexity zone, where its final separation takes place.

Up, on the convex section of section 8,

0, the clogged fraction of the biologically low-grade seeds of the main crop, which enters receiver 6 and forms fodder material, moves.

Down, along the convex section of section 8, a more complete seed fraction is moving.

 main crop than up (in the same section section). It is less littered with weed seeds, contains more biologically valuable seeds of the main crop, enters receiver 7 and constitutes technical material.

Thus, the separation of the separating surface into sections, each of which is concave at the site of feeding the initial mixture, the concavity decreasing in the direction of movement of the material being processed, a monotonous transition into convexity, and each section having an individual feeding device which is located above the concavity zone, allows improve the quality of semen separation

P mixture (instead of two fractions, divide at least four fractions - target, technical, fodder and waste) and exclude a difficult zone at the place of loading of the initial mixture.

Claims (3)

1. USSR author's certificate number 326001, cl. B 07 B 13/00, 1970. 2. USSR author's certificate number 287451, cl. B 07 B 13/00, 1969. 3. USSR author's certificate according to application no. 2748961, cl. B 07 B 13/00, 1979.