Theoretical study on motion of potato tuber on surface of separator
Laen...
Kuupäev
2020
Kättesaadav alates
Autorid
Bulgakov, V.
Nikolaenko, S.
Ruzhylo, Z.
Fedosiy, I.
Nowak, J.
Olt, Jüri
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
The aim of the study was to determine the optimal design and kinematic parameters of
the separator that cleans potatoes from impurities and has a design of the spiral type. The authors
have devised a highly efficient design of the spiral type potato heap separator, in which the motion
of the potato tubers takes place in the channel formed by two spiral members made in the form
of cylindrical spiral springs. In order to substantiate the optimal kinematic and design parameters
of the new spiral type potato heap separator, the authors have generated a mathematical model of
the motion of a single potato tuber on the cleaning surface formed by two spirals. As a result of
solving the obtained analytical expressions, the graphical relations between the parameters of the
investigated process of the motion of a single potato tuber body situated between two adjacent
spirals have been plotted, which has enabled selecting the optimal design and kinematic
parameters of the spiral separator. It has been established in the completed investigation that the
angular velocity of rotation of the cleaning rolls has to be within the range of 27 40 rad s
-1
in
order to ensure the efficient transportation and cleaning of the potato tuber with a diameter of
50 mm that moves on the surface of the spiral with a radius of 75 mm wound from the round bar
with a diameter of 15 mm, in case the spirals are mounted with an eccentricity of 10 mm. By
analysing the kinematics of motion of the potato tuber on the surface of the spiral type cleaning
machine, in case the tuber contacts the spirals at two points, it has been established that the
increase of the angular velocity of rotation of the spirals results in the respective growth of the
transportation capacity of the cleaning tool, while the separating efficiency at the same time
becomes reduced to some extent.
Kirjeldus
Märksõnad
cleaning, impurity, potato, quality, separator efficiency, spiral, transportation, articles