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The Dense Medium Cyclone – Past, Present and Future
Minerals Engineering, 2018 Since the dense medium cyclone (DMC) was first patented in the 1940s it has become the process of choice in coal preparation, and is also widely used for upgrading iron ore and in the pre-concentration of diamonds and metalliferous and industrial minerals. It is in every sense a mature technology.
Tim NAPIER-MUNN
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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 ...
M Narasimha
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International Journal of Coal Preparation and Utilization, 2014
Dense medium cyclones are used extensively in the minerals processing industry around the world and cyclones with larger diameters have been introduced in recent years. Although cyclones have been in use for well over 60 years, the influence of the different process variables such as cyclone dimensions, feed pressure, medium properties and feed rates ...
G. J. de Korte, J. Engelbrecht
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Dense medium cyclones are used extensively in the minerals processing industry around the world and cyclones with larger diameters have been introduced in recent years. Although cyclones have been in use for well over 60 years, the influence of the different process variables such as cyclone dimensions, feed pressure, medium properties and feed rates ...
G. J. de Korte, J. Engelbrecht
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OPTIMISATION AND CONTROL OF DENSE MEDIUM CYCLONE CIRCUITS
, 2016 The Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the University of Queensland’s Julius Kruttschnitt Mineral Research Centre (JKRMC) have conducted a number of Research projects focussed on the Dense Medium Cyclone (DMC) circuit in coal preparation plants.
O’Brien, Michael +5 more
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Effect of Dense Medium Properties on the Separation Performance of a Dense Medium Cyclone
Minerals Engineering, 1994Extensive 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
J S Laskowski
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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 ...
J S Laskowski
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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 ...
J S Laskowski
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Dense Medium Cyclone Control – A Reconsideration
International Journal of Coal Preparation and Utilization, 2009The current process management and control of dense medium cyclones is based on the measurement of feed medium density and pressure. This paper considers the relationships between the controlling factors and the relative density of separation and Ep. These relationships have been developed from the analysis of over 20 data sets on modern large cyclones
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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 +3 more
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Dense medium cyclones for coal washing - a review
, 2006 Coal is the world's pre-eminent energy source, and will remain so for many years. It is also a vital commodity in steel production, as well as in a number of other industrial processes. Prior to use, almost all coals need some form of washing, or preparation, to remove non-combustible material.
Holtham, P. N.
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