Results 191 to 200 of about 933 (246)

Effect of dense medium properties on the separation performance of a dense medium cyclone

Minerals Engineering, 1994
Extensive separation tests were carried out on a 6″ dense medium cyclone loop with the use of density tracers to study the effects of medium stability and rheology on the separation of fine particles. The medium properties were modified by changing the magnetic particle size and medium density. Four magnetite samples with RRB size modulus d63.2 ranging
Yunbin He, J S Laskowski
exaly   +2 more sources

A Review of Flow Modeling for Dense Medium Cyclones

Coal Preparation, 2006
A critical assessment is presented for the existing fluid flow models used for dense medium cyclones (DMCs) and hydrocyclones. As the present discussion indicates, the understanding of dense medium cyclone flow is still far from the complete. However, its similarity to the hydrocyclone provides a basis for improved understanding of fluid flow in DMCs ...
Narasimha, Mangadoddy, Brennan, Matthew S., Holtham, Peter N.   +2 more
openaire   +5 more sources

Dense Medium Cyclone Separation of Fine Particles Part 2. The Effect of Medium Composition on Dense Medium Cyclone Performance

Coal Preparation, 1995
The effect of medium composition on dense medium cyclone performance is investigated. It is found that a change in composition affects medium stability and rheology, and may lead to different responses in separation efficiency and cutpoint shift. The final result depends on whether the medium stability or rheology is the dominant factor, and also on ...
Y. B. HE, J. S. LASKOWSKI
exaly   +2 more sources

Development and Evaluation of the CAVEX Dense Medium Cyclone

International Journal of Coal Preparation and Utilization, 2010
The CAVEX dense medium cyclone (DMC) was developed in the later part of the 1990s as a result of the expertise developed by Weir engineers in slurry pumping. The inlet area of the cyclone is designed to minimize turbulence and to reduce wear at the feed entry point, which provides more energy for particle separation at a given feed pressure.
Rick Honaker
exaly   +2 more sources

Numerical studies of the effects of medium properties in dense medium cyclone operations

Minerals Engineering, 2009
A mathematical approach is proposed to describe the multiphase flow in a 1000 mm industrial dense medium cyclone. A mixture multiphase model is employed to describe the flow of the dense medium (comprising finely ground magnetite contaminated with non-magnetic material in water) and the air core, where the turbulence is described by the well ...
Kaiwei Chu, Aibing Yu, A Vince
exaly   +2 more sources

Numerical Analysis of the Changes in Dense Medium Feed Solids on Dense Medium Cyclone Performance [PDF]

, 2007
Numerical simulations of changes in feed medium solids on dense medium cyclone performance were performed using a multi-phase mixture CFD (Computational Fluid Dynamics) model for medium and air-core coupled with Lagrangian model for coal particles for a 350mm DSM cyclone. The turbulence was resolved using Large Eddy Simulation (LES).
Mangadoddy, Narasimha, Brennan, M. S., Holtham, P. N., Banerjee, P. K.   +3 more
openaire   +2 more sources

Dense Medium Cyclone Separation of Fine Coal: A Discussion on the Separation Lower Limit

Minerals (Basel, Switzerland), 2023
The separation of fine coal has been widely discussed in the coal preparation industry due to its high economic potential. Dense medium cyclone (DMC) is the most efficient equipment available for fine coal separation.
Jing Chang, Ni Chao
exaly   +2 more sources

A comprehensive CFD model of dense medium cyclone performance

Minerals Engineering, 2007
A computational fluid dynamics (CFD) model of the dense medium cyclone (DMC) has been developed, using Fluent, by coupling component models for the air-core, the magnetite medium and coal particles.
M Narasimha, P N Holtham, T J Napier-Munn   +2 more
exaly   +2 more sources

Dense Medium Cyclone Separation of Fine Particles Part 1. The Effect of Medium Split Ratio on Dense Medium Cyclone Performance

Coal Preparation, 1995
Y. B. HE, J. S. LASKOWSKI
exaly   +2 more sources

The effect of demagnetisation and ore contamination on the viscosity of the medium in a dense medium cyclone plant

Minerals Engineering, 1990
The influence of medium viscosity on dense medium cyclone performance, and the influence of various factors on medium viscosity, are briefly reviewed.
T J Napier-Munn
exaly   +2 more sources