Concentrator Modeling Database Development and Simulation of Ispat Inland Plant
2003-09-05
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Concentrator Modeling Database Development and Simulation of Ispat Inland Plant
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2003-09-05
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University of Minnesota Duluth
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Technical Report
Abstract
The Ispat Inland plant processes two blends of ore during different time
periods throughout the year. Although these two blends have mineralogical
differences, they go through the same process. The major difference in the
process becomes fineness of grind required to achieve desired level of
liberation, which is in tum controlled by the rod mill feed rate. This created
a unique opportunity for modeling the effect of mineralogy on separation
equipment and measuring reliability of the simulator in predicting
perfonnance of non-concentration equipment, such as hydrocyclones and
fine screens, under different operating and feed conditions. While
performance of concentration devices including magnetic separator,
hydroseparator and flotation banks was expected to show dependence on
variation in mineralogy, particularly on liberation size, performance of
classification and screening devices would be largely independent of the
liberation characteristics. Therefore, the models were expected to reasonably
simulate the performance of these devices for a given blend when plant data
from the other blend was available. On the other hand, performance of
grinding mills is mostly governed by the grindability characteristics of a
given ore type. Differences in mineralogy may or may not have significant
effect on their performance, depending on whether or not change in
mineralogy create significant variations in grindability. If such variation
occurs, then the question is: how can it be simulated? This study could also
provide a guideline for refining grinding models to account for such
variations.
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University of Minnesota Duluth, Natural Resources Research Institute, 5013 Miller Trunk Highway, Duluth, MN 55811-1442; Coleraine Minerals Research Laboratory, One Gayley Avenue, Box 188, Coleraine, MN 55722
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Ersayin, Salih. (2003). Concentrator Modeling Database Development and Simulation of Ispat Inland Plant. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/188319.
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