The development of dynamic models for a dense medium separation circuit in coal beneficiation / E.J. Meyer in Minerals engineering, Vol. 23 N° 10 (Septembre 2010)  

Public ISBD [article]  inMinerals engineering > Vol. 23 N° 10 (Septembre 2010) . - pp. 791–805 Titre : The development of dynamic models for a dense medium separation circuit in coal beneficiation Type de document : texte imprimé Auteurs : E.J. Meyer, Auteur ; I.K. Craig, Auteur Année de publication : 2011 Article en page(s) : pp. 791–805 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Dense medium separation Coal beneficiation Dynamic modelling Process control Simulation Parameter identifiability Résumé : Often the most difficult step in establishing a control system is the development of a suitable dynamic process model. As such a model is not available elsewhere, a first principle dynamic mathematical model was developed for a coal dense medium separation circuit. Each unit operation was modelled individually and then integrated together to form a complete non-linear state–space model for the circuit. This model was used to simulate the process and it was validated using real process data derived from a plant experiment. When developing models from first principles, it is necessary to estimate the model parameters. These parameters, specifically for non-linear state–space relationships, require a unique solution. A parameter identifiability method was used to show that the non-linear dynamic models developed have unique parameters for a specific set of input–output data. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687510001536 [article] The development of dynamic models for a dense medium separation circuit in coal beneficiation [texte imprimé] / E.J. Meyer, Auteur ; I.K. Craig, Auteur . - 2011 . - pp. 791–805. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 23 N° 10 (Septembre 2010) . - pp. 791–805 Mots-clés : Dense medium separation Coal beneficiation Dynamic modelling Process control Simulation Parameter identifiability Résumé : Often the most difficult step in establishing a control system is the development of a suitable dynamic process model. As such a model is not available elsewhere, a first principle dynamic mathematical model was developed for a coal dense medium separation circuit. Each unit operation was modelled individually and then integrated together to form a complete non-linear state–space model for the circuit. This model was used to simulate the process and it was validated using real process data derived from a plant experiment. When developing models from first principles, it is necessary to estimate the model parameters. These parameters, specifically for non-linear state–space relationships, require a unique solution. A parameter identifiability method was used to show that the non-linear dynamic models developed have unique parameters for a specific set of input–output data. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687510001536

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