SU486790A1 - Sieve Electrostatic Seed Separator - Google Patents

Description

one

The invention relates to a grain cleaning technique.

Sieve electrostatic seed separators are known, which include a grounded sieve cylindrical drum, mounted on a rotating base, and a dielectric drum with an external metal, i.e., current-conducting neck coating, an electrode in contact with electrifying rubbing brushes.

However, the required quality of semen separation is not achieved in this device, especially when separating mixtures with elongated particles.

The purpose of the invention is to improve the quality of the separation of these and.

This is achieved by the fact that the dielectric drum is installed inside a cylindrical lattice drum and mounted on a common ground with it supplied with chutes for the passage of components of the mixture being separated, and the brushes are mounted for rotation about their axes on fixed disks mounted on the axis about which the separator drums . To prevent the components of the mixture from hanging in the interelectrode space, a dielectric rod is fixed in the gap between the sieve cylindrical and dielectric drums.

The drawing schematically depicts a sieve electrostatic seed separator.

The separator consists of a hopper 1, a sieve drum 2, a dielectric drum 3 mounted on a dielectric rotating base 4. The axis 5 of the dielectric base 4 is mounted on a fixed axis 6, to which is mounted a rubbing device 7 with brushes 8. The latter are rotated their axes by touching the inner surface of the drum.

A dielectric rod - string 9 is fixed in the gap between the reshave and dielectric drums.

In the base 4 there are holes 10, 11 for the passage of the components of the mixture being separated. Under the holes 10, 11, chutes are installed to drain the fractions of the separated mixture.

Outside the sieve drum, a grounded cylindrical enclosure 12 is installed to limit entrainment of field-oriented mixture particles. The outer surface of the drum drum is cleaned with a shaft 13.

The stability of the rotation of the drum around the axis is supported by special rollers 14 installed in the upper part of the cylindrical frame. The axial rotational stability is ensured by the axis 15 in the case below the loading hopper. The drive is carried out via a V-belt transmission 16 from the electric motor 17.

Dielectric drum 3 has a rigid metal cylinder 18 with thin dielectric butts.

When the grain separator is in operation, the mixture from the bunker enters the interelectrode space, presses the rotating grating to the surface and selectively orients with an electric field. Oriented and non-orientated particles (components of the mixture) through the opening in the base are discharged from the separator.

This device is less energy consuming because it does not have special rectifying devices for creating an electrostatic field.

Subject invention

Claims (2)

1. Sieve electrostatic seed separator, including grounded sieve a cylindrical drum mounted on a rotating base, as well as a dielectric drum with an external metal electrode having a non-conducting coating in contact with electrifying rubbing brushes, characterized in that, in order to improve the quality of separation of seeds, the dielectric drum is mounted inside a cylindrical lattice drum and fixed on a common basis with him, chased by chutes for the passage of the components of the mixture being separated, and the brushes are mounted for rotation relative to their own s on fixed disk zakreplepnyh on the axis about which the rotating separator drum. 2. A separator according to claim 1, characterized in that, in order to clean the interelectrode space from the suspension of the mixture components, a dielectric rod is fixed in the gap between the sieve cylindrical and dielectric drums. ft / Z