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Geometrical and friction properties of perennial grasses and their weeds in view of an electro-separation method

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Kovalyshyn S. J., Dadak V. O., Sokolyk V. V., Grundas S., Stasiak M., Tys J.

International Agrophysics

2015

tom 29

nr 2

Many seed mixtures of herbs are difficult to separate. This is confirmed by studies determining the basic geometrical and friction properties of the seeds of perennial grasses and seeds of their weeds. The results show that in most cases the value of their geometrical parameters (length, thickness, and width) and friction properties (friction coefficients for different external surfaces of internal friction coefficients) are substantially similar and differ slightly among each other. This is the evidence that these properties are impractical to use in the process of separation as signs of divisibility. In the paper, a method for electro-separation of seed mixtures of herbs based on the use of complex physical, mechanical properties and electrical components in the separation are presented. The electric field that acts as an additional working body allows considering the surface conditions and biological status of seed mixtures of particles and significantly expands the functionality of the separators. Confirmation of the effectiveness of the proposed method for separation can be seen in the example of purification of red clover and sorrel seeds. By imposition of an electric field on an inclined moving separating plane, we can completely separate weed seeds from the main crop. The results confirm the effectiveness of the electro-separating method.

Ograniczanie wyników

1 International Agrophysics

1 Dadak V. O.

1 Grundas S.

1 Kovalyshyn S. J.

1 Sokolyk V. V.

1 Stasiak M.

1 Tys J.

1 2015

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Geometrical and friction properties of perennial grasses and their weeds in view of an electro-separation method