Bulk properties variability and interdependency determination for cohesive iron ore

Bulk properties variability and interdependency determination for cohesive iron ore

Mohajeri, M. (TU Delft Transport Engineering and Logistics)
van den Bos, Mats J. (Student TU Delft)
van Rhee, C. (TU Delft Offshore and Dredging Engineering; TU Delft Rivers, Ports, Waterways and Dredging Engineering)
Schott, D.L. (TU Delft Transport Engineering and Logistics)

2020

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.

Angle of repose
Cohesive iron ore
Penetration test
Ring shear test
Uni-axial consolidation

http://resolver.tudelft.nl/uuid:2ae71ee7-cb30-4223-b704-2e63dedd9a9d

https://doi.org/10.1016/j.powtec.2020.04.018

0032-5910

Powder Technology, 367, 539-557

Institutional Repository

journal article

© 2020 M. Mohajeri, Mats J. van den Bos, C. van Rhee, D.L. Schott