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Integrated scheduling of a multi-site mining supply chain with blending, alternative routings and co-production

Author

Listed:
  • Hajar Hilali

    (CREM - Centre de recherche en économie et management - UNICAEN - Université de Caen Normandie - NU - Normandie Université - UR - Université de Rennes - CNRS - Centre National de la Recherche Scientifique, EMINES School of Industrial Management [UM6P] - UM6P - Université Mohammed VI Polytechnique [Ben Guerir], UM6P - Université Mohammed VI Polytechnique [Ben Guerir])

  • Vincent Hovelaque

    (CREM - Centre de recherche en économie et management - UNICAEN - Université de Caen Normandie - NU - Normandie Université - UR - Université de Rennes - CNRS - Centre National de la Recherche Scientifique, IGR-IAE Rennes - Institut de Gestion de Rennes - Institut d'Administration des Entreprises - Rennes - UR - Université de Rennes, UR - Université de Rennes)

  • Vincent Giard

    (LAMSADE - Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision - Université Paris Dauphine-PSL - PSL - Université Paris sciences et lettres - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper proposes a multi-site global optimisation model of blending operations, alternative routings and order scheduling with a co-production flow. It is performed in a phosphoric supply chain owning three open-pit mines of different geological structures and chemical compositions, each having a dry blending plant. One main challenge of the phosphate industries is to produce merchantable ores (MO) that verify a quality charter (chemical composition) with chemical heterogeneous source ores (SO). Thus, a process of SO blending followed by a treatment is mostly necessary to obtain the required MO. Six alternative routings exist to produce an MO; one of them involving a calcination plant generates a co-product. The model objective is to determine the least costly production programme of a set of MO orders to be delivered within precise time windows, in given quantities and compliance with a specific quality charter, by assigning for each MO its blending plant, routing, blend of SOs and production schedule; it also defines the feeding of the blending plants. A real case study illustrates the proposed model.

Suggested Citation

  • Hajar Hilali & Vincent Hovelaque & Vincent Giard, 2023. "Integrated scheduling of a multi-site mining supply chain with blending, alternative routings and co-production," Post-Print halshs-03612471, HAL.
    • Handle: RePEc:hal:journl:halshs-03612471
    DOI: 10.1080/00207543.2022.2049909
    Note: View the original document on HAL open archive server: https://shs.hal.science/halshs-03612471
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    Cited by:

    1. Bassma Azzamouri & Vincent Hovelaque, 2024. "An integrated steering approach to improve a phosphate supply chain efficiency," Post-Print hal-04418207, HAL.

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