On-line Sensors in Preconcentration
In November 2020, IMA Engineering submitted a pre-recorded paper on the Future of Pre-concentration at the Digital Pre-concentration Conference in Australia. Today we would like to share that paper with the rest of you who could not attend the online event.
During years of extensive field experience and testing, we have found that the waste rock dilution and ore losses create much larger economic and environmental losses than have been previously recognized.
According to our studies, the main reason is a limited number of analyses already in exploration when drill cores or drill cuttings are used in block modeling. The same happens in production because too few and biased samples from benches are used to estimate the ore grade.
Much more than today’s estimated amount of waste enters the mill and considerable volumes of ore losses happen at the same time. The ore grade on the benches and in muck piles is averaged and “homogenized” with averaged and biased samples. These are the main root causes of waste rock dilution and ore losses.
Download the keynote below to learn more.
What is IMA Engineering?
IMA Engineering has used on-line sensors for analyzing ore and waste rock in mining for over 25 years. Today IMA on-line sensors are used in various stages of the mining process including on-line analysis of drill cores, drill chips, ore, and waste in loader buckets, ROM ore analysis on conveyor belts and in bulk ore sorting, as well as slurry analysis in concentrators.
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