CALCULATION OF EFFICIENCY OF PROCESS OF FRACTIONATION OF LOOSE MIX IN THE WORKING VOLUME OF A PNEUMATIC SEPARATOR
https://doi.org/10.20914/2310-1202-2015-3-43-49
Abstract
Summary. The process of separation bulk mixtures in the air stream is widespread in production associated with the cleaning of grain from impurity. In doing so, in order to effectively use the force of gravity appropriate cleaning grain in vertical air stream. Quantitative analysis of the separation process considering based on the model of the motion of an isolated particles in the stream. We used law of conservation of impulse in the form of the second law of Newton. Movement of particles in the air stream develops in conditions of large of number Reynolds. Therefore, the resistance force particles chosen by quadratic depending on its relative speed. Based on the quantitative analysis of the equations of motion of a particle moving on a specific trajectory, determine the critical diameter of the particles. As a process control setting chosen by the speed of the airflow. Based on the dispersion factor mixture of granular calculated coefficient of lightening. A specific example of equipment based on geometrical and physical-mechanical parameters of the process graphically presents the results of a qualitative and meaningful analysis on trajectories and velocities of the particles, the critical diameter of particle, coefficient of lightening.
About the Authors
E. V. Semenov
K.G. Razumovsky Moscow State University of technol. and manag
Russian Federation
Professor, Department of «Technologies of products from vegetable raw materials and prafyumernoosmetic products»; phone (495)670 15 10
Russian Federation
Professor, Department of «Technologies of products from vegetable raw materials and prafyumernoosmetic products»; phone (495)670 15 10
A. A. Slayanskiy
K.G. Razumovsky Moscow State University of technol. and manag
Russian Federation
professor, Department of «Technologies of products from vegetable raw materials and prafyumernoosmetic products»; phone (495)670 15 10
Russian Federation
professor, Department of «Technologies of products from vegetable raw materials and prafyumernoosmetic products»; phone (495)670 15 10
S. T. Antipov
Voronezh State University of Engineering Technologies
Russian Federation
professor, Department of the machine and devices of food productions phone (473) 255 37 16
Russian Federation
professor, Department of the machine and devices of food productions phone (473) 255 37 16
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Review
For citations:
Semenov E.V., Slayanskiy A.A., Antipov S.T. CALCULATION OF EFFICIENCY OF PROCESS OF FRACTIONATION OF LOOSE MIX IN THE WORKING VOLUME OF A PNEUMATIC SEPARATOR. Proceedings of the Voronezh State University of Engineering Technologies. 2015;(3):43-49. (In Russ.) https://doi.org/10.20914/2310-1202-2015-3-43-49
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