Thesis
Installation of an automated laboratory flotation column
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- Abstract
- The installation of instruments and devices required to fully automate a laboratory flotation column, and the configuration of the software required to drive the column from a PC terminal was accomplished. Beside the normal Input/Output link required, and as an application, the system was configured to perform stabilizing level control through feedback control loops. Three parallel software control loops were built, manipulating, alternatively, the underflow, feed or washwater streams to control the level. The level was calculated through the readings of up to three pressure transducers Proportional, Proportional-Integral and Proportional-Integral-Derivative control were used in the feedback loops. In the process, problems related to the accuracy and range of valid level calculation, and to the use of washwater as the manipulated variable were identified. Some changes to current industrial practice are suggested in order to correct these problems.
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- 2022-03-18
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MM07975.pdf | 2019-10-11 | Public | Download |