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Ferramentas informáticas para avaliar a influência da qualidade da perfuração no desmonte de rocha com explosivos
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 35.08 MB | Adobe PDF |
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Abstract(s)
Hoje em dia algumas das principais preocupações que se tem na industria extrativa são a diminuição de custos e a máxima rentabilidade dos equipamentos. Tem que existir sempre um cuidado com a rentabilização dos equipamentos com vista à redução de custos de todas as operações inerentes à exploração a céu aberto e, consequentemente, a diminuição dos custos finais de produção. Com a execução deste trabalho prende‐se estudar, principalmente, que peso têm os desvios de perfuração na fragmentação final e que consequências acarretam para as operações de britagem seguintes. Ao longo deste trabalho foram analisados 4 casos de estudos de 4 pedreiras de diferentes localidades sendo estas: Pedreira de Cervães, Famalicão, Santo Tirso e Tondela, sendo todas estas pedreiras propriedade da empresa Mota‐Engil, SA. Para este estudo foram realizados dois ensaios de campo: o “Laser Profile 3D” em conjunto com o Boretrak, que permitiram obter a modelação das bancadas de cada uma das pedreiras. Foi ainda realizado um procedimento de gabinete com recurso ao software “Wipfrag” que permite então avaliar a fragmentação do material em termos de dimensão. No final foi feita uma análise comparativa entre as pedreiras, para tentar aferir que tipo de impacto tem os desvios de furação na qualidade final da fragmentação e custos e consequências poderão advir de uma má fragmentação nas restantes operações da vida de uma pedreira.
Nowadays some of the main aspects that the extractive industry should worry about tis related to the reduction of costs and trying to obtain the maximum profit with the usage of the equipment. The usage of the equipment’s in this industry must be always have in consideration the reduction of costs of all the operations that are inherent to the open‐air operation. With this work, it is intended to study what is exactly the weight that the hole deviation in drilling operations have in the final results in terms of fragmentation and what consequences will lead to the following crushing operations. For this it was studied 4 cases of 4 quarries from different localities: Quarries of Cervães, Famalicão, Santo Tirso and Tondela; all these quarries are property of the company Mota‐Engil, SA. For this study, two field tests were carried out: the "Laser Profile 3D" in conjunction with Boretrak, which allowed the modeling of the benches of each of the quarries. A cabinet procedure was also performed using the software "Wipfrag", which allows to assess the rock material fragmentation degree, according to its size. At the end, a comparative analysis was carried out among the quarries to try to understand the impact of hole deviation on the quality of the fragmentation, and costs and consequences that could result from a bad fragmentation in the remaining operations of the life of a quarry.
Nowadays some of the main aspects that the extractive industry should worry about tis related to the reduction of costs and trying to obtain the maximum profit with the usage of the equipment. The usage of the equipment’s in this industry must be always have in consideration the reduction of costs of all the operations that are inherent to the open‐air operation. With this work, it is intended to study what is exactly the weight that the hole deviation in drilling operations have in the final results in terms of fragmentation and what consequences will lead to the following crushing operations. For this it was studied 4 cases of 4 quarries from different localities: Quarries of Cervães, Famalicão, Santo Tirso and Tondela; all these quarries are property of the company Mota‐Engil, SA. For this study, two field tests were carried out: the "Laser Profile 3D" in conjunction with Boretrak, which allowed the modeling of the benches of each of the quarries. A cabinet procedure was also performed using the software "Wipfrag", which allows to assess the rock material fragmentation degree, according to its size. At the end, a comparative analysis was carried out among the quarries to try to understand the impact of hole deviation on the quality of the fragmentation, and costs and consequences that could result from a bad fragmentation in the remaining operations of the life of a quarry.
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Keywords
Laser Profile 3D Boretrak Desvios de furação Fragmentação Hole Deflection Fragmentation