Banca de QUALIFICAÇÃO: KELY SEHN DA COSTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : KELY SEHN DA COSTA
DATE: 03/05/2024
TIME: 14:00
LOCAL: Plataforma Teams
TITLE:

Short-Term Mathematical Sequencing for Grade Stabilization Among Ore Stockpiles

KEY WORDS:
PAGES: 64
BIG AREA: Engenharias
AREA: Engenharia de Minas
SUBÁREA: Lavra
SPECIALTY: Lavra a Céu Aberto
SUMMARY:

Mining planning is a complex process involving strategic decision-making for the efficient extraction of mineral resources. It considers various factors aiming to maximize the economic value of the venture. Stabilizing ore grades among stockpiles is a fundamental practice to optimize the beneficiation process, ensuring product quality. Among the benefits of grade stabilization are improved beneficiation process control, increased mineral recovery, enhanced product quality, sustainability of the venture enabling the utilization of materials with different mineralogical characteristics, cost reduction in beneficiation, and reduced ore stockpile instability ensuring safer operations. This study is being conducted at a pyrochlore mine located in the city of Araxá, MG, owned by Companhia Brasileira de Metalurgia e Mineração (CBMM) and Companhia de Desenvolvimento Econômico de Minas Gerais (CODEMIG), both involved in ore extraction, beneficiation, and metallurgy processes. The main objective of the study is to assess the effectiveness of the current mathematical sequencing tool widely used in the company for long-term planning in constructing ore stockpiles, aiming to reduce niobium grade variability and metallurgical recovery among them. For this purpose, comparative tests were conducted between the manually applied method and the automated method using the mathematical sequencer. The polygons used for comparative analyses were the same in both applied methods. The results of the analyses obtained at the end of the study will be used to support the use of the automated method for ore stockpile construction. It is planned to make the use of the mathematical sequencer routine in the short term at the end of the study.

COMMITTEE MEMBERS:
Presidente - ALLAN ERLIKHMAN MEDEIROS SANTOS
Externa à Instituição - LARISSA REGINA COSTA SILVEIRA - UFBA
Externo à Instituição - RAFAEL DE SOUZA RODRIGUES
Externo à Instituição - LUCIANO NUNES CAPPONI
Externo à Instituição - LEANDRO DIAS DA SILVA