Experimental implementation of an economic model predictive control for froth flotation
Fuente:
arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866910667545509888 |
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| author | Quintanilla, Paulina Navia, Daniel Neethling, Stephen Brito-Parada, Pablo |
| author_facet | Quintanilla, Paulina Navia, Daniel Neethling, Stephen Brito-Parada, Pablo |
| contents | We present the implementation of a novel economic model predictive control (E-MPC) strategy for froth flotation, the largest tonnage mineral separation process. A previously calibrated and validated dynamic model incorporating froth physics was used, which overcomes the limitations of previous simplified models reported in the literature. The E-MPC's optimal control problem was solved using full discretization with orthogonal collocation over finite elements, employing automatic differentiation via CasADi. This approach was applied in a 30-litre laboratory-scale flotation cell, significantly improving mineral recovery from 9% to 29% under feed flowrate disturbances while maintaining a minimum concentrate grade of 20%. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_19661 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Experimental implementation of an economic model predictive control for froth flotation Quintanilla, Paulina Navia, Daniel Neethling, Stephen Brito-Parada, Pablo Systems and Control We present the implementation of a novel economic model predictive control (E-MPC) strategy for froth flotation, the largest tonnage mineral separation process. A previously calibrated and validated dynamic model incorporating froth physics was used, which overcomes the limitations of previous simplified models reported in the literature. The E-MPC's optimal control problem was solved using full discretization with orthogonal collocation over finite elements, employing automatic differentiation via CasADi. This approach was applied in a 30-litre laboratory-scale flotation cell, significantly improving mineral recovery from 9% to 29% under feed flowrate disturbances while maintaining a minimum concentrate grade of 20%. |
| title | Experimental implementation of an economic model predictive control for froth flotation |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2410.19661 |