High-efficiency industrial cyclone separator

A CFD study

Document identifier: oai:DiVA.org:ltu-76944
Access full text here:10.1016/j.powtec.2019.10.064
Keyword: Engineering and Technology, Mechanical Engineering, Fluid Mechanics and Acoustics, Teknik och teknologier, Maskinteknik, Strömningsmekanik och akustik, Cyclone separator, Computational fluid dynamics, Vortex breakdown, Pressure drop, Collection efficiency, Strömningslära, Fluid Mechanics
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 9 Industry, innovation and infrastructure
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

The flow within an industrial scroll-inlet high-efficiency cyclone separator has been studied using RSM and LES simulations. Of particular interest is the effect of the gas outlet configuration, i.e. outlet scroll and radial bend, on the flow pattern, pressure drop and cyclone efficiency. A surprising phenomenon is that the inner vortex splits into two vortices for the cyclone with a conventional outlet pipe while if the cyclone is equipped with an outlet scroll or radial bend there is no split. The outlet scroll and radial bend increase the pressure losses by 5.1% and 6.4%, respectively. These installations, moreover, significantly destabilize the pressure losses and the amplitude of instantaneous pressure drop oscillations increases from 0.65% to 16.2% and 33.96%, respectively. The investigated outlet scroll and radial bend have practically no effects on the cyclone efficiency since the flow in the main separation zone is not affected by the gas outlet configuration.

Authors

Dzmitry Misiulia

Department of Machines and Apparatus for Chemical and Silicate Production, Belarusian State Technological University, Minsk, Belarus
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Sergiy Antonyuk

Institute of Particle Process Engineering, University of Kaiserslautern, Kaiserslautern, Germany
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Anders Gustav Andersson

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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Tord Staffan Lundström

Luleå tekniska universitet; Strömningslära och experimentell mekanik
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