Bulk properties variability and interdependency determination for cohesive iron ore

Journal article (2020)

Authors

M. Mohajeri Transport Engineering and Logistics - Mechanical, Maritime and Materials Engineering
C. van Rhee Offshore and Dredging Engineering - Mechanical, Maritime and Materials Engineering , Rivers, Ports, Waterways and Dredging Engineering - CEG
D.L. Schott Transport Engineering and Logistics - Mechanical, Maritime and Materials Engineering
Research Group
Transport Engineering and Logistics (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2020 M. Mohajeri, Mats J. van den Bos, C. van Rhee, D.L. Schott
DOI: https://doi.org/10.1016/j.powtec.2020.04.018
Penetration test Cohesive iron ore Angle of repose Ring shear test Uni-axial consolidation
More Info
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Published Date

2020

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Marine and Transport Technology

Research Group

Transport Engineering and Logistics

Abstract

An ideal unit of bulk transport or storage equipment is able to handle cohesive iron ore with consistent productivity. In practice, however, uncontrollable bulk property variations affect the productivity. Therefore, it is important to understand the effect of uncontrollable variations on the process. This study quantifies variability and interdependency of bulk property of a range of cohesive iron ore products. Three different laboratory tests relevant to storage and excavation processes are used. Using a multi-variate experimental plan, three influencing characteristics of iron ore – type, moisture content and consolidation state – are included. A stress-history dependent behavior is captured in both the shear and penetration tests, with the results being highly dependent on the pre-consolidation stress. The outcome of this study enables future research on minimizing the effect of uncontrollable bulk properties variability of iron ore and other cohesive materials in the design procedure of transport and storage processes.