2025-04-012025-04-012025-02-24RODRIGUES, Danielle Vitoria Baia; GONÇALVES, Jhullye Maressa Trindade. Elaboração de uma metodologia para análise da eficiência de bicos de spray no abatimento de poeira de minério. Orientador: Danilo Silva Santos; Coorientadora: Grazielle Tigre de Souza. 2025. 59 f. Trabalho de Conclusão de Curso (Bacharelado em Engenharia Civil) – Faculdade de Engenharia Civil, Campus Universitário de Tucuruí, Universidade Federal do Pará, Tucuruí, 2025. Disponível em: https://bdm.ufpa.br/jspui/handle/prefix/7947. Acesso em:.https://bdm.ufpa.br/jspui/handle/prefix/7947The dispersion of dust during ore handling is a critical issue in the mining industry, as it affects air quality, impacts the environment, and poses occupational health risks. Dust suppression methods, such as spray nozzles, are widely used, but their efficiency varies depending on operational conditions. However, the lack of a standardized methodology for evaluating their performance makes it difficult to select the most suitable system, highlighting the need for a detailed study on their effectiveness. This study conducted experimental tests in a wind tunnel to assess the efficiency of different spray nozzles in controlling dust generated by pellet feed handling. Parameters such as nozzle type, spray pressure, and airflow velocity were evaluated. The results indicated that atomizing nozzles achieved higher efficiency in capturing airborne particles, especially under moderate pressure conditions. In contrast, conventional nozzles, such as full-cone and hollow-cone types, exhibited reduced efficiency under high airflow velocities. Additionally, it was found that higher pressures improved atomization and fine particle capture in atomizing nozzles, while conventional nozzles showed a drop in efficiency above 3 bar due to concentrated droplet dispersion. The developed methodology enabled an objective comparison between different dust suppression technologies, aiding in the selection of more effective solutions for industrial applications. Thus, this study contributes to the improvement of dust control strategies in mining by providing a standardized approach for evaluating the efficiency of spray nozzles and supporting the implementation of more effective and sustainable measures.Acesso AbertoSupressãoParticuladosPellet feedSuppressionParticulatesPellet feedCNPQ::ENGENHARIAS::ENGENHARIA DE MINASTrabalho de Curso - Graduação - Monografia