UDC 637.131.2+637.022
DOI 10.36461/NP.2024.72.4.015

RESULTS OF THEORETICAL STUDIES OF THE MOTION OF THE EXTRACTED IMPURITY PARTICLE IN THE INTER-DISC SPACE OF THE MILK SEPARATOR
A.V. Yashin, Candidate of Engineering Sciences, Associate Professor;
A.A. Gusev, assistant; N.S. Chirkova, post-graduate student;
R.R. Devlikamov, Candidate of Engineering Sciences, Associate Professor
Penza State Agrarian University,
Penza, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents an equation of the trajectory of the extracted impurity particle in the inter-disc space of the milk separator. Based on this trajectory, formulas are defined for calculating the residence time of the impurity particle in the inter-disc space of the milk separator drum and the angle to which the particle will move during this time. The analysis of the formulas showed the dependence on the dynamic viscosity of milk, the natural logarithm of the ratio of the difference between the doubled value of the impurity particle coordinates on the inner surface of the separation disc and the coordinates of its initial position and the coordinate of its initial position, the difference between the density of the impurity particle and milk, the square of the radius of the impurity particle and the angular velocity of the drum, as well as the square of the cosine of the angle of inclination of the separation disc to the horizontal. The results of calculations of the values of the radius vector of the position of an impurity particle of various sizes on the inner surface of the separation disc from the residence time of the impurity particle and the angle to which it will move in the inter-disc space of the milk separator drum are presented. It was found that for an angle of 120 deg. as the maximum between neighboring bars without taking into account their width at time 0,143318 c, the radius-vector to which the impurity particles with radius 0,5∙10^(-6) m would move would be 0,0287 m, for an impurity particle with radius 2,5∙10^(-6) m would be 0,06114 m, and for an impurity particle with radius 5∙10^(-6) m would be 1,81312 m, if the dimensions of the drum allowed.
Keywords: impurity particle, inter-disc space, milk separator, radius vector, angle, time.

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