Authors: A.V. Ugolnikov

Title of the article: A mathematical model of effective dedusting under hydro-vortex coagulation

Year: 2021, Issue: 5, Pages: 82-90

Branch of knowledge: 25.00.21 Theoretical foundations of the design of mining systems

Index UDK: 622.23.05:622.807

DOI: 10.26730/1999-4125-2021-5-82-90

Abstract: The urgency of the efficiency improvement of dedusting is specified by the growth of labor productivity at mining enterprises. Thus, we suggest technology and a mathematical model of hydro-vortex inertial orthokinetic hetero-coagulation which can raise the efficiency of high-pressure dust control. A mathematical model of hydro-vortex coagulation is developed, that enables us to analyze the kinematics and the dynamics of the interaction between a liquid droplet and a dust particle under the attached vortex action induced by rotating liquid drops. We obtained an equation of the relative dust concentration in a spray plume under hydro-vortex dedusting. Simulation data verification has affirmed the convergence of the dependency of the efficiency improvement of hydro-vortex dedusting on the angular velocity of the rotation of liquid droplets. It is shown that hydro-vortex dedusting enables to increase the efficiency of dust control up to 99 percent through the capture coefficient growth and the length of the spray active zone.

Key words: high-pressure dedusting hydro-vortex nozzle circulatory motion attached vortex dedusting efficiency

Receiving date: 03.09.2021

Approval date: 25.10.2021

Publication date: 24.12.2021

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