During Iron Ore sintering process wet granulation is done prior to sintering. Which is the best method to measure the size distribution of wet granules ?
If particles are static Image analysis technique can be used for analyzing particle size and shape
Dear Nilu
Wet granules of Iron are highly unstable and likely to disintegrate during the image analysis. so the size and size distribution by image analysis may not be accurate.
good day!
Image analysis allows to determine the size of the granules. Example usage
1. Starodumov A.V., Evtugyn S. N., Kruglov V. N., Lisienko V. G. Automated control system for processes of obtaining raw pellets "Indicator size". - Steel. 2008. No. 12. P. 37-39.
2. Lissijenko V .., V Kruglov, D. Kirin, I. lukyantsev System for determining geometric Dimenshions of Particlies of granulated or granulate. - Proceedings of the 2002 international conference on electronics, information and Communications.- 9-11 July, Ulaanbaatar, Mongolia, 2002. P. 420-422.
3. Lissijenko V .., V Kruglov, D. Kirin Systemzur Verfahren und Bestimmung der geometrischen Abmessungen von Teilchen, Eines pelletierten und / Oder granulierten Materials. - The GE patent No. 19536238. Issue date 28.04.1998
What is the best way to measure the size of the wet granules during the sintering process of iron ore? - Tagged. Available from: https://www.researchgate.net/post/what_is_the_best_possible_way_to_measure_the_size_of_wet_granules_during_iron_ore_sintering_process#5728b005cbd5c2f6ff182cd0 [accessed June 3, 2016].
Normally, liquid nitrogen is used to freeze the granules to keep them strong enough in the size analysis. This method is somewhere called as "frozen size analysis".
Dear Mahesh,
Rapid freezing of granules with liquid nitrogen followed by size analysis may be hepful in your case.
Thank you Mr. Congcong Yang for the valuable information. but even after Nitrogen quenching the size analysis can not be accurate because particles disintegrate with time.
Dear Sharma,
Yes, it is true that granules disintegrate with time especially under the mechanic force. I think we can not avoid these experimental errors, but it is possible to decrease them to a acceptable level, for example by conducting frozen size analysis as soon as you can.
Kind regards.
Dear Congcong Yang
Thanks. I will try to conduct frozen analysis with out delay.
For size analysis, the wet annuals are needed to be dried first.. Then till 100 mesh it can be sieve analysed dry. post 100 mesh it can be size analysed by wet method using finer sieves or can be analysed through a laser size analyser.
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