An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.

Detalhes bibliográficos
Ano de defesa: 2025
Autor(a) principal: Martins, Aldrin Gustavo
Orientador(a): Assis, Paulo Santos, Souza, Marcone Jamilson Freitas
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: eng
Instituição de defesa: Não Informado pela instituição
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Linear programming
Discrete-time systems
Mining engineering
Iron mines and mining
Technological innovations
Link de acesso: https://www.repositorio.ufop.br/handle/123456789/20077
Resumo: Programa de Pós-Graduação em Engenharia de Materiais. Departamento de Engenharia Metalúrgica, Escola de Minas, Universidade Federal de Ouro Preto.
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spelling Martins, Aldrin GustavoAssis, Paulo SantosMenezes, Gustavo CamposPinto, Luiz RicardoMazzinghy, Douglas BatistaMartins, Alexandre XavierGomes, Helton CristianoSouza, Marcone Jamilson FreitasAssis, Paulo SantosSouza, Marcone Jamilson Freitas2025-04-07T17:42:45Z2025MARTINS, Aldrin Gustavo. An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets. 2025. 100 f. Tese (Doutorado em Engenharia de Materiais) – Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, 2025.https://www.repositorio.ufop.br/handle/123456789/20077Programa de Pós-Graduação em Engenharia de Materiais. Departamento de Engenharia Metalúrgica, Escola de Minas, Universidade Federal de Ouro Preto.This thesis addresses an integrated simulation and optimization tool for forecasting the execution of annual mining planning. For this purpose, we developed a discrete event simulation (DES) model integrated with mixed integer linear programming (MILP) to incorporate the main equipment cycle and downtime. The MILP model creates work-shift plans for the DES model. It considers ten objectives and solves them hierarchically based on the mining status at each simulation instant. Three case studies involving an iron ore mine with two processing plants are analyzed to test this tool. In the first case, we analyze the impact of the number of loading machines and the tolerance to the iron grade target on the particle size and stripping ratio targets for a work shift. In the second study, four scenarios of an annual mining plan are simulated. Feeding the biggest processing plant is prioritized in case of a shortage of released ore in the mine. Moreover, the prioritization of the grade target and the particle size target are alternate, and the iron grade target varies. Finally, the third study focuses on understanding the impact of the size of the homogenized pile on the feed rate in the processing plants and on the variability of ore grades between these piles. The results of the first study showed that when the appropriate number of loading machines is chosen for a work shift, there is a reduction in the deviation from the targets for grade, particle size, and stripping ratio. On the other hand, the second study showed a greater gain in ore mass for the biggest plant when it is prioritized and when the particle size target is optimized hierarchically before the grade target. Finally, the third case study showed a gain in the mass fed to the processing plant when considering a smaller pile size scenario.Esta tese aborda uma ferramenta integrada de simulação e otimização para prever a execução do planejamento anual de mineração. Para isso, desenvolvemos um modelo de simulação de eventos discretos (DES) integrado à programação linear inteira mista (MILP) para incorporar o ciclo do equipamento principal e o tempo de inatividade. O modelo MILP cria planos de turnos de trabalho para o modelo DES. Ele considera dez objetivos e os resolve hierarquicamente com base no status da mineração em cada instante da simulação. Três estudos de caso envolvendo uma mina de minério de ferro com duas plantas de processamento são analisados para testar essa ferramenta. No primeiro caso, analisamos o impacto do número de máquinas de carregamento e a tolerância à meta de teor de ferro sobre as metas de tamanho de partícula e taxa de remoção para um turno de trabalho. No segundo estudo, são simulados quatro cenários de um plano anual de mineração. A alimentação da maior planta de processamento é priorizada no caso de escassez de minério liberado na mina. Além disso, a priorização da meta de teor e a meta de tamanho de partícula são alternadas, e a meta de teor de ferro varia. Por fim, o terceiro estudo se concentra em entender o impacto do tamanho da pilha homogeneizada sobre a taxa de alimentação nas plantas de processamento e sobre a variabilidade dos teores de minério entre essas pilhas. Os resultados do primeiro estudo mostraram que, quando o número adequado de máquinas de carregamento é escolhido para um turno de trabalho, há uma redução no desvio das metas de teor, tamanho de partícula e taxa de remoção. Por outro lado, o segundo estudo mostrou um ganho maior em massa de minério para a maior planta quando ela é priorizada e quando a meta de tamanho de partícula é otimizada hierarquicamente antes da meta de teor. Por fim, o terceiro estudo de caso mostrou um ganho na massa fornecida à planta de processamento ao considerar um cenário de tamanho de pilha menor.Attribution-NoDerivs 3.0 United Stateshttp://creativecommons.org/licenses/by-nd/3.0/us/Autorização concedida ao Repositório Institucional da UFOP pelo(a) autor(a) em 26/03/2025 com as seguintes condições: disponível sob Licença Creative Commons 4.0 que permite copiar, distribuir e transmitir o trabalho, desde que sejam citados o autor e o licenciante. Não permite a adaptação.info:eu-repo/semantics/openAccessLinear programmingDiscrete-time systemsMining engineeringIron mines and miningTechnological innovationsAn integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.Uma ferramenta integrada de simulação e otimização para problemas de planejamento de mineração de curto prazo com diferentes priorizações entre metas de plantas concorrentes.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://www.repositorio.ufop.br/bitstreams/4428d1aa-e5b1-4fef-a31a-4c3cf0224fbb/downloadbb9bdc0b3349e4284e09149f943790b4MD53falseAnonymousREADCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8899https://www.repositorio.ufop.br/bitstreams/b38428ea-ff71-4f1e-8c66-8b238ae61b75/download5aba0d8952bdb83a4ca6f97ded663704MD52falseAnonymousREADTEXTTESE_IntegratedSimulationOptimization.pdf.txtTESE_IntegratedSimulationOptimization.pdf.txtExtracted texttext/plain101411https://www.repositorio.ufop.br/bitstreams/880724bc-e55b-4e6e-903e-8dd21607b3b6/downloaddcdf27ee6b3b4fd74c4f1c8f5dbc0922MD54falseAnonymousREADTHUMBNAILTESE_IntegratedSimulationOptimization.pdf.jpgTESE_IntegratedSimulationOptimization.pdf.jpgGenerated Thumbnailimage/jpeg4701https://www.repositorio.ufop.br/bitstreams/c5b922d2-ea24-4dc4-af24-acee4616390e/download4e6ac84ad5369c18f5943d7c7dca5249MD55falseAnonymousREADORIGINALTESE_IntegratedSimulationOptimization.pdfTESE_IntegratedSimulationOptimization.pdfapplication/pdf6969707https://www.repositorio.ufop.br/bitstreams/d4e68d70-1fdb-4a46-8fff-b51da683a1c1/downloadaf9b9c0ecec0cd05805fac6c01fcc080MD51trueAnonymousREAD123456789/200772025-04-07 14:42:49.285http://creativecommons.org/licenses/by-nd/3.0/us/abertoopen.accessoai:repositorio.ufop.br:123456789/20077https://www.repositorio.ufop.brRepositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332025-04-07T17:42:49Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)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
dc.title.none.fl_str_mv An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
dc.title.alternative.none.fl_str_mv Uma ferramenta integrada de simulação e otimização para problemas de planejamento de mineração de curto prazo com diferentes priorizações entre metas de plantas concorrentes.
title An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
spellingShingle An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
Martins, Aldrin Gustavo
Linear programming
Discrete-time systems
Mining engineering
Iron mines and mining
Technological innovations
title_short An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
title_full An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
title_fullStr An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
title_full_unstemmed An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
title_sort An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets.
author Martins, Aldrin Gustavo
author_facet Martins, Aldrin Gustavo
author_role author
dc.contributor.referee.none.fl_str_mv Assis, Paulo Santos
Menezes, Gustavo Campos
Pinto, Luiz Ricardo
Mazzinghy, Douglas Batista
Martins, Alexandre Xavier
Gomes, Helton Cristiano
Souza, Marcone Jamilson Freitas
dc.contributor.author.fl_str_mv Martins, Aldrin Gustavo
dc.contributor.advisor1.fl_str_mv Assis, Paulo Santos
Souza, Marcone Jamilson Freitas
contributor_str_mv Assis, Paulo Santos
Souza, Marcone Jamilson Freitas
dc.subject.por.fl_str_mv Linear programming
Discrete-time systems
Mining engineering
Iron mines and mining
Technological innovations
topic Linear programming
Discrete-time systems
Mining engineering
Iron mines and mining
Technological innovations
description Programa de Pós-Graduação em Engenharia de Materiais. Departamento de Engenharia Metalúrgica, Escola de Minas, Universidade Federal de Ouro Preto.
publishDate 2025
dc.date.accessioned.fl_str_mv 2025-04-07T17:42:45Z
dc.date.issued.fl_str_mv 2025
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
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dc.identifier.citation.fl_str_mv MARTINS, Aldrin Gustavo. An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets. 2025. 100 f. Tese (Doutorado em Engenharia de Materiais) – Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, 2025.
dc.identifier.uri.fl_str_mv https://www.repositorio.ufop.br/handle/123456789/20077
identifier_str_mv MARTINS, Aldrin Gustavo. An integrated simulation and optimization tool for short-term mining planning problems with different prioritization among competing plant targets. 2025. 100 f. Tese (Doutorado em Engenharia de Materiais) – Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, 2025.
url https://www.repositorio.ufop.br/handle/123456789/20077
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NoDerivs 3.0 United States
http://creativecommons.org/licenses/by-nd/3.0/us/
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rights_invalid_str_mv Attribution-NoDerivs 3.0 United States
http://creativecommons.org/licenses/by-nd/3.0/us/
eu_rights_str_mv openAccess
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institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
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