Sequencing Heuristics

In an ore production chain, stockyard operations, especially the recovery of ore piles, play a key role for linking the processing and transportation processes. With this purpose, this dissertation proposes the sequencing of ore piles to be reclaimed through the adaptation of heuristics brought by the literature. Firstly, a sequencing heuristic is proposed for the resumption of ore piles (understood as tasks to be sequenced) in their respective yards through the application of a pile prioritization index (PI). Such index is based on relevant factors for stockyard operations, such as reclaimer capacity, quality and residence time of the ore and travel time between stockpiles (setup). The second heuristic proposed, ATCSM (Apparent Tardiness Cost with Setups for mineral recovery), modifies the ATCS (Apparent Tardiness Cost with Setups) dispatch rule aiming at its application in the retaking of ore stockpiles in stockyards. The ATCSM is based on factors considered relevant to stockyards operations, such as time available for

Autorentext

Master in Mineral Production Engineering by UFRGS, MBA in Project Management by FGV, Specialist in New Educational Technologies, Civil Production Engineer and Bachelor in Mathematics. Has extensive experience in the iron ore production chain. Specialist in Operational Improvements.