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The Study on Numerical Simulation and Experiments of Four Product Hydrocyclone with Double Vortex Finders

College of Mechanical & Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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Minerals 2019, 9(1), 23; https://doi.org/10.3390/min9010023
Received: 14 November 2018 / Revised: 16 December 2018 / Accepted: 24 December 2018 / Published: 30 December 2018
(This article belongs to the Special Issue Physical Separation and Enrichment)
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Abstract

A hydrocyclone is an instrument that can effectively separate multi-phase mixtures of particles with different densities or sizes based on centrifugal sedimentation principles. However, conventional hydrocyclones lead to two products only, resulting in an over-wide particle size range that does not meet the requirements of subsequent operations. In this article, a two-stage series, a four product hydrocyclone is proposed. The first stage hydrocyclone is designed to be a coaxial double overflow pipe: under the effect of separation, fine particles are discharged from the internal overflow pipe, while medium-size particles are discharged from external overflow pipe before entering the second stage hydrocyclone for fine sedimentation. In other words, one-stage grading leads to four products, including the first stage underflow, the first stage overflow, the second stage underflow, and the second stage overflow. The effects of structural parameters and operational parameters on flow field distribution in hydrocyclone were investigated via a study of flow field distribution in multi-product hydrocyclones using numerical simulations. The application of four product hydrocyclone in iron recovery shows that the grade and recovery of iron concentrate exceed 65.08% and 86.14%, respectively. This study provides references for understanding the flow field distribution in hydrocyclones and development of multi-product grading instrument in terms of both theory and industrial applications. View Full-Text
Keywords: four product hydrocyclone with double vortex finders; separation; numerical simulation; experiments four product hydrocyclone with double vortex finders; separation; numerical simulation; experiments
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Zhang, Y.; Liu, P.; Jiang, L.; Yang, X. The Study on Numerical Simulation and Experiments of Four Product Hydrocyclone with Double Vortex Finders. Minerals 2019, 9, 23.

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