2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 2: Mineral Processing
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 446 pages |
| ISBN: | 978-1-987820-04-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Online smart sensor to measure stockpile
Xiaowei Pan1;1UNIVERSITY OF JOHANNESBURG, Johannesburg, South Africa (zuid Afrika);
Type of Paper: Regular
Id Paper: 262
Topic: 2
Abstract:
With the advancement and the wide usage of measurement instruments associated with stockpiles, such as weightometers, a soft sensor can be developed to monitor the level of a stockpile. Furthermore, the stockpile soft sensor can be used to determine the mixing behaviour of different ores discharged out of the stockpile, by combining the soft sensor technique and DEM modeling. The mixing behaviour of different materials includes when and how the mixing takes place, and more important, when the mixed materials with a certain portion is discharged out of the stockpile. In this article, only the level function of the stockpile soft sensor will be discussed in detail.
The stockpile soft sensor can help estimate accurate residual time for different group of ores charged to the stockpile. The soft sensor makes it possible to monitor the behavior of different ore types in real time in a stockpile, including when and how the different ores are mixed in the stockpile and when the mixed ores are discharged with certain mixing portion. Using the soft sensor system, the information on ore types can be provided for ores that are discharged from the stockpile. The ore type information includes ore grade, density, hardness, strength, etc.
The stockpile soft sensor forms part of an ore tracking system, which utilises the real time information available in both SCADA and database of a mineral processing plant or a mine. Using the ore geological data and the tonnage of ore being treated, the ore tracking system calculates and provides ore type information to all process units at a mine, including primary crusher, primary stock pile, primary scrubbers, secondary scrubbers, secondary crushers, re-crusher stock pile, DMS stock piles, DMS feeders, DMS concentrate bin and the feed to next processing plant.
The stockpile soft sensor, developed originally for a diamond mine, can be used for stockpiles of other mines, including iron ore mines, coal mines, copper mines, chromium ore mine, and even cement plants, etc.