Results 11 to 20 of about 933 (246)

Fundamentals on the spigot capacity of dense medium cyclones [PDF]

open access: yesMinerals Engineering, 2007
Abstract The capacity of dense medium cyclones is often restricted by the solids-carrying capacity of the underflow, referred to as spigot capacity. Cyclone manufacturers normally recommend the spigot capacity for a cyclone of a particular size; however, it is not clear how these capacities are determined and whether they can be increased.
Magwai, Mohloana K., Bosman, Jeremy B.
openaire   +3 more sources

Modelling the Multiphase Flow in Dense Medium Cyclones

open access: yesThe Journal of Computational Multiphase Flows, 2010
Dense medium cyclone (DMC) is widely used in mineral industry to separate solids by density. It is simple in design but the flow pattern within it is complex due to the size and density distributions of the feed and process medium solids, and the turbulent vortex formed.
Kaiwei Chu   +3 more
openaire   +2 more sources

Features of near gravitational material tracers in a dense medium cyclone from PEPT [PDF]

open access: yes, 2023
Dense media cyclones are an integral part of circuits employed for coal processing, iron ore beneficiation, and recovery of diamonds. Many techniques have been applied in studying the separation performance of these devices including the use of different
Narasimha, M
core   +1 more source

Hydrodynamic force analysis of magnetite medium inside dense medium cyclone using multiphase GPU parallelized ASM model

open access: yes, 2021
In order to tackle the high compute cost of the multiphase simulations for dense medium cyclones, the development of an open source high fidelity LES based algebraic slip mixture multiphase flow solver is presented.
R., Kumar   +5 more
core   +1 more source

Separation of Dolomite from a Lead-zinc Sulfide by Dense Medium

open access: yesKuangchan zonghe liyong
A lead-zinc sulfide is a reworked SEDEX deposit, in which the main gangue mineral is dolomite. About 40%~50% yield of flotation tailing was need to be stockpiled in tailing pond.
Jinshan RAO   +5 more
doaj   +1 more source

Investigation of separation performance of dense medium cyclone using computer simulation

open access: yes, 2015
Dense medium coal processing technology has been widely used in coal preparation industries in the world since it is the most accurate and efficient coal preparation process to obtain clean coal with a highest possible yield.
Umucu, Y.
core   +1 more source

Study on Separation characteristics of dense medium cyclone for raw coal with high density fraction contents

open access: yes矿业科学学报
This study attempts to enhance the separation efficiency of dense media cyclone for raw coal feed with difficult-to-cleaning and large high-density component content.
ZHAO Long   +6 more
doaj   +1 more source

Dense Medium Cyclone [PDF]

open access: yes, 2000
This paper outlines the importance of dense medium cyc-lones in coal cleaning along with process optimisation through modelling. Dense medium cyclone was developed by Dutch State Mines in 1940s and since inception it has gained tremendous ...
Rao, T C
core  

Flow characteristics and regime transitions in fluidization systems of Group C+ particles

open access: yesAIChE Journal, EarlyView.
Abstract Fine and ultrafine particles are attractive for fluidized bed reactors because their high surface area benefits catalytic processes, but their cohesive nature complicates regime characterization. Nanoparticle modulation improves the flowability of Group C powders, yet their bubbling to turbulent transition remains unclear.
Yue Song   +3 more
wiley   +1 more source

How cold is too cold? A theoretical analysis of the optimal trigger for index insurance for frost damage to crops

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Crop insurance is undoubtedly an extremely valuable element in protecting agricultural businesses, but in many cases standard indemnity‐based products have had very low uptake due to high transaction costs elevating premiums to unaffordable levels.
Amogh Prakasha Kumar   +2 more
wiley   +1 more source

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