RU2193461C1 - Apparatus for cleaning green pea seeds from smooth grain fraction - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: apparatus has charging hopper with seed guides. Tilt boards mounted on single inclined rotary shaft are made in the form of rotary disks. Flat tray with guides is rigidly fixed under each disk on vibrating carcass. Sliding radial partition wall is positioned on surface of each disk and fixed on rotating shaft. Two receivers for separated fractions and vibrator are positioned on frame under disks. Separated green pea mixture is delivered from charging hopper via seed guides onto inclined flat reciprocating trays. Separated particles are discharged from trays via guides onto disks. Seeds of smooth grain fraction with lower friction coefficient roll from disks into respective receiver. Remaining seeds of greater friction coefficient are carried away by rotating disks into another receiver. Apparatus may be used for separating bulk solid bodies by their shape and properties of particle surface. EFFECT: increased efficiency in removal of smooth grain contaminants and improved quality of green pea seeds. 2 dwg

Description

 The invention relates to a device for separating bulk solids according to the shape and properties of the surface of the particles and can be used in agricultural engineering.

 A device for separating grain into fractions according to the properties of the particle shape, including a receiving device with a pallet for loading, pitched planes having the same shape and size, and a collecting-output device with an adjusting partition. Guides are mounted on the surface of each plane perpendicular to its trailing edge. In addition, the pan is equipped with a vibrator (see A.S. 549179, class B 07 V 13/00, 1977).

 The disadvantage is that in this device, the orientation of the separated particles (in the "edge" position) leads to the alignment of the friction coefficients of the seeds of green peas, which prevents their effective separation.

 The technical result consists in improving the quality of green pea seeds due to their purification from the smooth grain fraction.

 The essence of the invention lies in the fact that the device for cleaning green pea seeds from a smooth grain fraction, including a hopper, pitched planes of the same shape, guides, two receivers for shared fractions and a vibrator, is equipped with a frame and a bed, and the pitched planes are made in the form of disks installed with the possibility of rotation around a common inclined axis in a direction opposite to the direction of the velocity vector of the rolling particles, each disk has a flat l mounted above it on a common frame current from the guides and disposed on a surface thereof slidable radial wall with a fixed point on the rotation axis and receivers separated fractions are fixed on the frame under the disc, while the overall frame for trays is mounted to vibrate.

 Figure 1 shows a General view of the device, figure 2 is a top view.

 The device comprises a loading hopper 1 (Fig. 1) equipped with grain wires 2. On the common axis of rotation 3, pitched planes of the same shape are installed in the form of disks 4 mounted for rotation around a common inclined axis 3 in the direction opposite to the direction of the velocity vector of the rolled particles. On a common vibrating frame 5 above each disk 4, a flat tray 6 with guides 7 is rigidly fixed. The vibrator 8 is mounted on the frame 9. On the surface of each disk 4 (figure 2), a radial partition 10 with a fixing point on the axis of rotation 3 is slidably mounted. On the frame 9 under the disks 4 are fixed two receivers 11, 12 of the separated fractions of pea seeds. The common frame 5 for trays 6 is installed with the possibility of vibration.

 The device operates as follows.

 The separated mixture of green peas from the feed hopper 1 through grain ducts 2 falls on inclined flat trays 6, making oscillating reciprocating movements in the direction perpendicular to the particle velocity vectors. For certain values of the frequency and amplitude of oscillations of the trays 6, the separated particles form a flat layer moving in the direction of the disks 4. In this case, the bulk of the particles under the influence of vibration is on the tray in the "flat" position. Moving then along the guides 7, the separated particles from the trays 6 fall on the disks 4, rotating in the opposite direction to the particle velocity vectors. Particles of seeds of a smooth-grain fraction, having a relatively lower coefficient of friction (rolling friction coefficient), roll off the disks 4 under the action of gravity and fall into the receiver 11. The remaining particles falling on the disk in the "flat" position and having a higher friction coefficient are carried away by the rotating disks 4 and fall into the receiver 12.

 Compared with the known solutions, the proposed device design can significantly improve the quality of the seeds of vegetable (green) peas by effectively removing the smooth-grain fraction from them.

Claims (1)

 A device for cleaning green pea seeds from a smooth grain fraction, including a hopper, pitched planes of the same shape, guides, two receivers for shared fractions and a vibrator, characterized in that it is equipped with a frame and a bed, and the pitched planes are made in the form of disks installed with the possibility rotation around a common inclined axis in a direction opposite to the direction of the velocity vector of the rolling particles, each disk has a flat tray mounted on top of it on a common frame with guides and, arranged on its surface slidably radial wall with a fixed point on the rotation axis and receivers separated fractions are fixed on the frame under the disc, while the overall frame for trays is mounted to vibrate.

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