Dynamic modelling and simulation of semi-autogenous mills

MINERALS ENGINEERING;
Miner. Eng.

dc.creatorAcuña-Leiva, Gonzalo
dc.creatorCubillos-Montecino, Francisco
dc.creatorSalazar-Navarrete, José
dc.creatorMagne-Ortega, Luis
dc.date2017-04-27T18:52:52Z
dc.date2022-07-07T02:24:58Z
dc.date2017-04-27T18:52:52Z
dc.date2022-07-07T02:24:58Z
dc.date2009
dc.date.accessioned2023-08-22T01:33:37Z
dc.date.available2023-08-22T01:33:37Z
dc.identifier0
dc.identifierD02I1077
dc.identifierD02I1077
dc.identifierWOS:000262141100009
dc.identifier0892-6875
dc.identifierhttps://hdl.handle.net/10533/197769
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8306483
dc.descriptionThis paper presents a dynamic simulator of the semi-autogenous grinding operation deduced from first principles coupled to an on-line parameter estimation scheme able to simulate industrial operations for control purposes. Model equations are based on conventional non-stationary population balance approach to develop the necessary dynamic model of the semi-autogenous mill operation. The model is able to predict the time-evolution of key operating variables such as product flow rate, level charge, power-draw and load position. as function of other important variables such as mill rotational speed and fresh feed characteristics. The set of ordinary differential equations was solved using MATLAB/SIMULINK as a graphic programming platform, a very helpful tool for understanding the grinding phenomenon. Using an on-line parameter estimator, the simulator was tested and validated at an 1800 t/h copper-ore mill showing the effectiveness of the system to track the dynamic behaviour of the variables. It is now being used for the study of advanced control schemes. (C) 2008 Elsevier Ltd. All rights reserved.
dc.descriptionThe authors acknowledge with thanks the financial support provided by FONDEF under Project D0211077 and DICYT-USACH.
dc.description11
dc.descriptionFONDEF
dc.descriptionfcubillo@usach.cl
dc.descriptionFONDEF [D0211077]; DICYT-USACH
dc.description1
dc.descriptionFONDEF
dc.description22
dc.languageENG
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinfo:eu-repo/grantAgreement/Fondef/D02I1077
dc.relationinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relationhttps://doi.org/10.1016/j.mineng.2008.04.009
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleDynamic modelling and simulation of semi-autogenous mills
dc.titleMINERALS ENGINEERING
dc.titleMiner. Eng.
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageOXFORD


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