SU489474A1 - The method of separation of a pile of grain crops - Google Patents

Description

3

the integration on the computer of the equations of motion of particles in a force field, which is a superposition of the fields of the ground force and the aerodynamic flow field. This will make it possible to apply engineering calculation in the design of devices using the proposed separation method.

The proposed separation method can be implemented on any device that sufficiently closely identifies the aerodynamic flow field as a whole or its sector. As an example, fng. 2 schematically shows a device which is a separator for the first separation of a heap of grain crops into two components, in which the proposed separation method is used.

A seaiator includes a hc ejecting thrower, which in a given case is made in the form of two interacting infinite friction ribbons o and 6 worn on drums 7, 8, 9 and 10. A section of belt 5 between drums 8 and 9 is working. The section of the same tape between reels 7 and 8 is receiving. The latter, depending on the method of separator pitapi, can be covered from the end of the flap 11.

Separation chamber 12 is a cavity delimited laterally by two blind spots 13 and a finely perforated envelope surface 14.

Two sides of the chamber 12 are arranged for two suction fans 15, connected to the cavity of chamber 12. NO. Tubes 16. In the lower part of chamber 12, transferors are installed to remove one of the components of the mixture, which in this particular case is made in the form of a scraper conveyor 17 and auger 18.

The exhaust pipes 19 of the fans 15 are directed to the collection of the second component (not shown in the drawing). The front part of chamber 12 is bounded by pins 20 and 21. A seaiator (in the example of the separation of the corpus of grain crops, the hedgehog sex, and the straw particles) works as follows.

The pile is fed to the receiving portion of the tape.

5, due to the interaction of the belts 5 and 6, they are thrown into chamber 12 through the ice. In chamber 12, due to the vacuum created by the fans 15, as well as through the corrugation in the envelope surface 14, an aerodynamic Iole sufficiently close to the flow field is created. Due to this, light particles with a large sail area (chaff, tail, particles of straw) move around the sharply upward trajectories and are carried away through the pipes 16 and the fans 15 to the exhaust pipes 19.

Heavy particles with low Yarusa (zerpo) move along gentle trajectories, bent downwards, precipitated in the lower part.

the envelope surface 14, preferably in the rear part of the chamber 12, and with the help of the scraper conveyor 17 and the speck 18 is carried outside the device.

Subject invention

A method of separating a heap of grain crops, including throwing the separated material into a vertically rationalized aerodynamic drain field, characterized in that, in order to improve the quality of cleaning by reducing the ingress of the zerp into the light fraction, the plane of the methane of the material being separated is located under the center of the drain in its lower zone.

 X

- y

:.

x

,

Jii MI s I I1

 / / / / / / / /

/

Phage.1