Modélisation des opérations du secteur électrolyse de l'aluminerie Alcoa Deschambault dans le but d'améliorer la productivité de l'aluminerie en situation d'augmentation d'ampérage

Authors: Veilleux, Valérie
Advisor: Gosselin, LouisLehoux, Nadia
Abstract: A good planning and control of the operations involved in a smelter is crucial for achieving a high-level of performance and productivity for the plant. Given the large number of processes involved in a smelter, as well as their complexity and interrelationships, it is far from trivial to evaluate the real impact that a change to the cell amperage may have on work organization and schedules, equipment capacities and replacement, etc. In the present work, a simulation model based on the discrete event method is developed to analyze the operations management in a potroom. The inputs to the model are the plant layout, the work schedule, the travel and process times, the availability and the capacity of equipment such as crucibles, cranes, etc., and the list of required cells to be tapped, based on the cast house requirements. The model was validated with plant data. Results of the simulation include some details concerning the operations performed within a 12-hour period, a work shift duration, and the time at which they were completed. The simulation also provides information such as the operational incapacity to respect the planning when applicable. Based on the actual context of the Alcoa Deschambault’s smelter, the research demonstrates that it is possible, with current resources, to support an increase of 5% or 10% of amperage. Furthermore, it shows how auto-guided vehicles for the transport of the anodes could be implemented regarding the needs of the company. The proposed simulation model can therefore be viewed as a powerful tool to test different scenarios and lead towards profitable short-term and long-term planning decisions.
Document Type: Mémoire de maîtrise
Issue Date: 2018
Open Access Date: 24 April 2018
Grantor: Université Laval
Collection:Thèses et mémoires

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