Separation Behaviour of Iron Ore Fines in Kelsey Centrifugal Jig

Nirlipta P. Nayak, Bhatu K. Pal

Department of Mining Engineering, National Institute of Technology, Rourkela, India.

DOI: 10.4236/jmmce.2013.13016                

Abstract

Kelsey Centrifugal Jig was found to be promising for the beneficiation of fine iron particles. The present study was carried out to have a better understanding of the separation process of Kelsey Jig through detailed experimentation. Beneficiation of fine iron ore fines was studied in Kelsey Jig. A constant pulp density (25% solids) of the feed slurry was maintained in the study. The feed rate was also kept constant at 60 kg/hr (dry solids basis). Magnetite of size -0.853+0.6 mmwas used as ragging material to avoid the pegging of internal screen having an opening of 425 μm. The rotational speed was found to have significant effect on the depth of the ragging bed and its porosity. Pulsation was identified as the key factor in stratifying the iron bed and defining the misplacement as well as ragging bed porosity, influencing the mass yield and quality of product.

Keywords

EGS; Ragging Material; Beneficiation

Conflicts of Interest

The authors declare no conflicts of interest.

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