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Title: | A methodology to implement a closed-loop feedback-feedforward level control in a laboratory-scale flotation bank using peristaltic pumps |
Authors: | Quintanilla, P Navia, D Moreno, F Neethling, SJ Brito-Parada, PR |
Keywords: | closed-loop level control;feedback-feedforward control;froth flotation;flotation control;integrating process;laboratory-scale flotation bank;SIMC tuning |
Issue Date: | 16-Feb-2023 |
Publisher: | Elsevier |
Citation: | Quintanilla, P. et al. (2023) 'A methodology to implement a closed-loop feedback-feedforward level control in a laboratory-scale flotation bank using peristaltic pumps', MethodsX, 10, 102081, pp. 1 - 15. doi: 10.1016/j.mex.2023.102081. |
Abstract: | This paper describes the implementation of a level control strategy in a laboratory-scale flotation system. The laboratory-scale system consists of a bank of three flotation tanks connected in series, which mimics a flotation system found in mineral processing plants. Besides the classical feedback control strategy, we have also included a feedforward strategy to better account for process disturbances. Results revealed that the level control performance significantly improves when a feedforward strategy is considered. This methodology uses peristaltic pumps for level control, which has not been extensively documented even though: (1) peristaltic pumps are commonly used in laboratory-scale systems, and (2) the control implementation is not as straightforward as those control strategies that use valves. Therefore, we believe that this paper, which describes a proven methodology that has been validated in an experimental system, can be a useful reference for many researchers in the field. • Preparation of reagents to ensure that the froth stability of the froth layer is representative of an industrial flotation froth. • Calibration of instruments – convert the electrical signal from PLCs to engineering units. • Tuning PI parameters using SIMC rules by performing step-changes in each flotation cell. |
Description: | Data availability: Data will be made available on request. |
URI: | https://bura.brunel.ac.uk/handle/2438/28888 |
DOI: | https://doi.org/10.1016/j.mex.2023.102081 |
Other Identifiers: | ORCiD: Paulina Quintanilla https://orcid.org/0000-0002-7717-0556 102081 |
Appears in Collections: | Dept of Chemical Engineering Research Papers |
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FullText.pdf | Copyright © 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( https://creativecommons.org/licenses/by/4.0/ ). | 3.66 MB | Adobe PDF | View/Open |
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