TY - JOUR
AU - Kydyrbekuly, A. B.
AU - Rahmetolla, A. Sh.
AU - Ibraev, G. E.
AU - Rakhimzhanova, А. Zh.
PY - 2018/08/29
Y2 - 2024/10/05
TI - About the separation of finely divided particles during centrifugation in liquid media
JF - Journal of Mathematics, Mechanics and Computer Science
JA - JMMCS
VL - 98
IS - 2
SE - Mechanics
DO - 10.26577/jmmcs-2018-2-397
UR - https://bm.kaznu.kz/index.php/kaznu/article/view/397
SP - 33-44
AB - <p>This work is devoted to the study of centrifugation processes, which are one of the most complex<br>processes of technology. The use of the action of the centrifugal force field for the separation<br>of heterogeneous liquid systems in a rotor system (centrifuge) is very effective. Separability of<br>centrifuged materials, multiphase dispersion, the relationship between phases cause ambiguous<br>processes of centrifugation, and therefore it is not always possible to accurately predict and evaluate<br>the main characteristics of the separation of heterogeneous systems in the centrifugal force field.<br>For a qualitative assessment of the main separation characteristics, such as the angular velocity<br>of rotation, the dependence of the angles of inclination of the glasses on the angular velocity, the<br>settling time of particles, etc., is created a mathematical model of the vertical rotor system. The<br>rotor represents a round disk on which cups (vial) with a multiphase liquid are symmetrically<br>suspended. A particular case of a fixed rotor is considered. Nonlinear differential equations of<br>motion of the suspension particle, which have no exact solution, are obtained. The research is<br>conducted by analytical and numerical methods. The dependence of the slope angles of the tubes<br>from the angular rotational speed of the rotor, sedimentation curves are obtained , which allow<br>estimating the time of particle deposition and the effect of the particle size distribution on the<br>separation process. The results of this research work allow us to determine with sufficient accuracy<br>all the necessary characteristics of the sedimentation working process, and also, in certain cases,<br>it is possible to exclude the conduct of experimental work. The results of the work confirm the<br>physical meaning of the process, which can serve as a justification for the use and introduction of<br>this mathematical model in industrial production.</p>
ER -