Theoretical study on sieving of potato heap elements in spiral separator
Laen...
Kuupäev
2019
Kättesaadav alates
Autorid
Bulgakov, V.
Pascuzzi, S.
Nikolaenko, S.
Santoro, F.
Sotirios Anifantis, A.
Olt, Jüri
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
One of the principal problems in the harvesting of potatoes is the cleaning of the lifted
heap from soil and plant impurities. The low quality in the performance of this harvesting work
process operation is the main cause of the withdrawal from fields of considerable amounts of
fertile soil. In order to facilitate choosing the optimal parameters for the new design of the spiral
potato heap cleaning unit, a mathematical model of sieving the soil impurities through its cleaning
spirals has been developed. The obtained analytical expressions have been solved with the use of
a PC and the results have been used for plotting the graphic relations between the parameters of
the examined process of a variable-mass body’s motion on the surface of a spiral, which have
made it possible to select the optimal design and kinematic parameters of the spiral cleaning unit
under consideration. The obtained graphic relations indicate that the rate of sieving in the spiral
separator depends on many factors, including the initial mass, the design dimensions (spiral’s
radius, helix angle etc.), the frictional properties of the surface, the angular parameters of the
position of the potato heap elements on the spiral’s surface, and the angular velocity of the
rotational motion of the spiral roll itself.
Kirjeldus
Article
Märksõnad
cleaning, digging, mathematical model, potato, spiral roll, articles