Effect of particle shape on jig separation efficiency
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AGH University of Science and Technology
Publication date: 2007-01-01
Corresponding author
Marian Brożek   

AGH University of Science and Technology, Department of Mineral Processing and Environment Protection, Al. Mickiewicza 30, 30-065 Kraków, Poland
Physicochem. Probl. Miner. Process. 2007;41(1):397-413
Settling velocity of particles, which is the main parameter of jig separation, is affected by physical (density) and the geometrical (size and shape) properties of particles. The authors worked out a calculation algorithm of particles falling velocity distribution for monosized spherical and irregular particles assuming that the density of particles, their size and shape constitute random variables of fixed distributions. The distributions of falling velocity of irregular particles of a narrow size fraction were calculated utilizing industrial experiments. The measurements were executed and the histograms of distributions of projection diameter, as well as volume and dynamic shape coefficient, were drawn. The separation accuracy was measured by the change of process imperfection of irregular particles in relation to spherical ones, resulting from the distribution of particles settling velocity.
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