Companies The Mining
Mostrando 1-12 de 60 artigos, teses e dissertações.
-
1. Technical dossier and legal proceedings in Brazilian dimension stone mining
Abstract This article presents a guide to be followed by mining companies willing to open a dimension stone quarry in Brazilian territory. It highlights the main technical documents required by Federal legislation to obtain mining authorization. These documents and their singularities were compiled based on a study of Brazilian mining laws, other normative i
REM, Int. Eng. J.. Publicado em: 2021-06
-
2. Development of a low-cost alternative for the monitoring of the ore hauling production indicators in small-scale mining
Abstract Small and medium-sized mining represent an important part of a country's min eral economy. These companies, although substantial and numerous, have low invest ment potential in their development through new technologies. One of the problems small and medium mining companies face is the ore hauling production monitoring. This operation alone can cons
REM, Int. Eng. J.. Publicado em: 2020-09
-
3. Evaluation of environmental rehabilitation practices in bauxite mining at the plateau of Poços de Caldas
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06
-
4. Erratum
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06
-
5. Increased power efficiency in mining by using high-fidelity haul truck simulation
Abstract The current economic and political scenario in Brazil has allowed small, medium and large companies to adopt cost cutdown and productivity increase strategies. Diesel fuel consumption by off-highway haul trucks stands for one of the largest costs at the Sossego Mine operational management department. Based on this fact, as well as on the 8% increase
REM, Int. Eng. J.. Publicado em: 2020-03
-
6. The spirit underneath: development, race and moral economy in Central Mozambique
Resumo Desde 2007, Tete, província central de Moçambique, passa por uma grande expansão econômica. Empresas multinacionais de mineração estão explorando um dos maiores - e praticamente intocados - depósitos de carvão do mundo. Liderados pela brasileira Vale, o bilionário e polêmico plano de investimento chamou a atenção de ONGs internacionais e
Vibrant, Virtual Braz. Anthr.. Publicado em: 28/11/2019
-
7. Simulação de condição de fluxo em duto circular transportando polpa de bauxita de Paragominas (PA) na presença de aditivo modificador de viscosidade
RESUMO Sistemas de bombeamento de minérios por dutos tem atraído o interesse de mineradoras pois se tornam uma alternativa de transporte muito eficiente. Dentre os maiores desafios no projeto de bombeamento por dutos está a estimativa do fator de atrito, já que são muitas as variáveis que afetam este parâmetro. Uma amostra de polpa de bauxita de Parag
Matéria (Rio J.). Publicado em: 25/11/2019
-
8. Desastre socioambiental e Termo de Transação e Ajustamento de Conduta (TTAC) como instrumento de política pública: O caso da barragem de Fundão, MG
Resumo: Este artigo inscreve-se na agenda de pesquisa dedicada à compreensão dos processos de governança e participação social nas políticas públicas que estão sendo formuladas e implementadas visando à reparação da bacia do rio Doce, localizada nos estados brasileiros de Minas Gerais e Espírito Santo, em razão do desastre socioambiental de gran
Civitas, Rev. Ciênc. Soc.. Publicado em: 16/09/2019
-
9. An integrated pit-to-plant approach using technological models for strategic mine planning of copper and gold deposits
Abstract The strategic mine plan is a crucial step for the success of mining companies, and for its development, it is necessary to use a number of inter-related variables that are usually estimated independently. These variables include operational data that is traditionally isolated in information islands between the different departments in the mine or th
REM, Int. Eng. J.. Publicado em: 2019-06
-
10. Inovação, Desenvolvimento de Novos Produtos e as Tecnologias Internet: estudo em empresas brasileiras
Resumo Este estudo investigou, a partir de abordagem qualitativa, o uso de tecnologias internet no apoio à inovação de produtos em empresas brasileiras. Uma revisão de escopo da literatura evidenciou os principais usos destas tecnologias para cada estágio da inovação. A abordagem mostrou que as empresas inovadoras entrevistadas utilizam, principalmen
Gest. Prod.. Publicado em: 01/04/2019
-
11. DNPM actions on the implementation of law 12.334/2010: from the ordinances and inspections to the SIGBM
Abstract As defined in PNSB - Law 12.334/2010 (Brasil, 2010), the DNPM, which manages the Brazilian mineral resources, is also responsible for overseeing the safety management of tailings dams in the country. The purpose of this article is to present the actions carried out in this context by the Department since the enactment of the Law in 2010, such as: el
REM, Int. Eng. J.. Publicado em: 2019-03
-
12. The Quest for land at Piranema sand cluster
Abstract The Piranema Sand Cluster, located between the Seropédica and Itaguaí counties of Rio de Janeiro Metropolitan Region, is responsible for 65% of the sand used in construction works of the region and is the home of approximately 47 small mining companies. The construction works in progress in this area make this mining district a critical success fa
REM, Int. Eng. J.. Publicado em: 2018-07