Influence of the distribution function on modelling and simulation of the Carajas grinding circuit - Part 1 - Model fit

Foggiatto, Bianca and Delboni Junior, Homero (2010) Influence of the distribution function on modelling and simulation of the Carajas grinding circuit - Part 1 - Model fit. Revista Escola de Minas, 63 2: 379-384.


Author Foggiatto, Bianca
Delboni Junior, Homero
Title Influence of the distribution function on modelling and simulation of the Carajas grinding circuit - Part 1 - Model fit
Journal name Revista Escola de Minas   Check publisher's open access policy
Translated journal name School of Mines Magazine
Language of Journal Name por
Publication date 2010-06
Sub-type Article
DOI 10.1590/S0370-44672010000200024
Volume number 63
Issue number 2
ISSN 0370-4467
Start page 379
End page 384
Total pages 6
Place of publication Ouro Preto, Brazil
Publisher Escola de Minas
Language por
eng
Formatted abstract The perfect mixing model (PMM) is based on parameters derived from the equipment characteristics as well as ore breakage characteristics. Ore characteristics are represented through the appearance function. This function may be determined using JKMRC laboratorial methods or by standard functions. This work describes the model fitting process of the Carajas grinding circuit, using the JKSimMet simulator. Two scenarios were used in model fitting exercises: 1) standard appearance function; and 2) appearance function based on testing carried out on samples taken at circuit feed. From this assessment, the appearance function's influence in the PMM fit and it's relation with the breakage rate were determined. The influence of the appearance function on the respective breakage rate distribution was assessed.
Keyword Grinding
Perfect mixing model
Iron ore
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes In Portuguese - English abstract only

Document type: Journal Article
Sub-type: Article
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Thu, 05 Apr 2012, 14:33:54 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre