Vahideh Shojaei

Mineral Processing Division, Department of Mining Engineering, Higher Education Complex of Zarand

[ 1 ] - Combined application of computational fluid dynamics (CFD) and design of experiments (DOE) to hydrodynamic simulation of a coal classifier

Combining the computational fluid dynamics (CFD) and the design of experiments (DOE) methods, as a mixed approach in modeling was proposed so that to simultaneously benefit from the advantages of both modeling methods. The presented method was validated using a coal hydraulic classifier in an industrial scale. Effects of operating parameters including feed flow rate, solid content and baffle le...

[ 2 ] - A new method for determination of frothability of frothers by using water recovery measurement

A new method was introduced for frothing characterization of flotation frothers. Method uses water recovery to develop a new frothability index named water recovery index (WRI). New index was determined for some commercial frothers and results were compared with dynamic frothability index (DFI). Results showed that water recovery index values follow the order of A-65 13016 s/mol > DF-250 6292.4...

[ 3 ] - Effects of operating parameters on time-dependent ash entrainment behaviour of a sample coal flotation

It is well-known that entrainment of particles into the froth is a key factor in the selectivity and performance of the flotation process, especially for fine particle recovery. Since flotation is a continuous process, in this work, the effects of operating parameters on the entrainment of ash materials in a sample coal flotation is investigated from a time-sequence viewpoint. The effects of th...