Work index and grinding energy assessment of Dilband Iron Ore, Pakistan | [Mehran University Research Journal of Engineering and Technology • 2011]

Author(s):

1. Muhammad Ishaque Abro: Department of Metallurgy & Materials Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

2. Abdul Ghani Pathan: Department of Mining Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

3. Abdul Hakeem Mallah: Department of Metallurgy & Materials Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan

Abstract:

Importance of comminution in mineral processing sector is highly acknowledged from energy perspective. In present study an attempt was made to understand the comminuting behavior of Dilband iron ore and to compute the grinding energy requirement for production of ultrafine particles up to mesh of liberation. In this regard standard grindability tests developed by the Chair of Mineral Processing Leoben Austria was used for calculating work index of Dilband iron ore. The grinding tests were conducted in rod and ball mills. The work index value of two feed size fractions with 80% passing at 3800µm and 5200µm was noted to be 11.85 kwh/t and 9.3 kwh/ton respectively. Ball mill grinding test indicates that dry grinding in open circuit is not efficient and consumes more energy of 88.48kwh/t of ore for grinding 1000/40µm to 80% <40µm size.

Page(s): 29-34

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 30, Issue: 1, Year: 2011

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