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Implementing Real-Time Optimization on a secondary Cone Crusher for Iron ore production, part 2

Erik Hulthén (Institutionen för produkt- och produktionsutveckling, Produktutveckling) ; Kristoffer Hofling ; Anders Apelqvist ; Åke Sundvall ; Eva Öberg ; Carl Magnus Evertsson (Institutionen för produkt- och produktionsutveckling, Produktutveckling)
Preprints Conference in Minerals Engineering, Luleå, 4-5 February 2014 p. 45-56. (2014)
[Konferensbidrag, övrigt]

Cone crushers are often used as an intermediate comminution step in the mining industry. Real-time feedback data on the product streams can be obtained by applying mass-flow sensors to the process. With a frequency converter also the eccentric speed in a cone crusher can be adjusted in real-time in addition to the CSS. The adjustment of these two online parameters in real time results in an increased potential for production yield; however, a nontrivial optimization problem with a large solution space also arises. As the feed material also varies, and the wear is highly evident, the optimal setting for the parameters varies in time. In this paper a secondary cone crusher in an iron ore application is equipped for real-time optimization with both mass flow meters, connection to plant SCADA, a CSS control system and a frequency converter. The objective is to optimize the feed to the downstream mills in real-time. The guiding tests indicated a more beneficial operating point, where higher power consumption could be achieved in the crusher without increasing the pressure as much. There are operating points which are more beneficial than others, and it is not the nominal one (factory setting) that is the best. The result from a full sampling survey tell that the production of particles smaller than 1 mm can be increased with 17.5%.

Nyckelord: crushing, iron ore, on-line, process optimization, eccentric speed

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Denna post skapades 2014-06-26. Senast ändrad 2015-05-08.
CPL Pubid: 199663


Institutioner (Chalmers)

Institutionen för produkt- och produktionsutveckling, Produktutveckling (2005-2017)


Annan maskinteknik
Mineral- och gruvteknik

Chalmers infrastruktur