Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Rodrigo M. de Carvalho"'
Publikováno v:
Journal of Materials Research and Technology, Vol 28, Iss , Pp 4540-4550 (2024)
Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pel
Externí odkaz:
https://doaj.org/article/e2842a4efa2546c283fe73d9f5dced51
Autor:
Jaime Moreno-Juez, Luís Marcelo Tavares, Riccardo Artoni, Rodrigo M. de Carvalho, Emerson Reikdal da Cunha, Bogdan Cazacliu
Publikováno v:
Materials, Vol 14, Iss 11, p 3007 (2021)
Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is studied by means of experiments and simulations. The effect
Externí odkaz:
https://doaj.org/article/e4763ed21e98459fb905bb415701d0ec
Publikováno v:
KONA Powder and Particle Journal, Vol 35, Iss 0, Pp 216-225 (2017)
The increase in production of steel in electric arc furnaces in recent years influenced directly the world production of direct reduction iron (DRI). Amongst the most widely used technologies for DRI production is the MIDREX® process. The behavior o
Externí odkaz:
https://doaj.org/article/19dd5ec6747c4fd6b74343e0b902c042
Autor:
Rodrigo M. de Carvalho, Anderson D. Thomazini, Emerson R. da Cunha, Benito B. e Silva, Luís Marcelo Tavares
Publikováno v:
Transactions of the Indian Institute of Metals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eff872f9aaa5c689e7bc8aa7aa34cff
https://doi.org/10.1007/s12666-023-02958-6
https://doi.org/10.1007/s12666-023-02958-6
Publikováno v:
Powder Technology. 392:489-502
Various approaches have been used over the years to describe quantitatively ball milling, with different levels of success. The present work presents the application and validation of a mechanistic model to describe ball milling of iron ore pellet fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5a45a1822e0a4d8e802b19648023d1f
https://doi.org/10.1016/j.powtec.2021.07.030
https://doi.org/10.1016/j.powtec.2021.07.030
Publikováno v:
Powder Technology. 387:560-574
The work uses the UFRJ mechanistic mill model and DEM to analyze the effect of several design and operating variables on the apparent breakage rates and breakage distribution function of a batch gravity-induced stirred mill grinding copper ore. It sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73c4a8d95e9665869ac7d2bdb8daf6a1
https://doi.org/10.1016/j.powtec.2021.04.057
https://doi.org/10.1016/j.powtec.2021.04.057
Autor:
Anderson D. Thomazini, Pedro P. Cavalcanti, Luís Marcelo Tavares, Rodrigo M. de Carvalho, Horacio A. Petit
Publikováno v:
Powder Technology. 378:795-807
Mechanical degradation of iron ore pellets can have important economic and environmental implications. The work initially describes a pneumatic gun device that has been developed for characterizing breakage of pellets, by impacting them one-by-one ag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1143cf56141ecdabacd3a6d21fcb3281
https://doi.org/10.1016/j.powtec.2020.10.037
https://doi.org/10.1016/j.powtec.2020.10.037
Autor:
Benito Barbabela e Silva, Rodrigo M. de Carvalho, Emerson Reikdal da Cunha, Luís Marcelo Tavares
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 41:323-334
In a recent study by the authors, green pellets motion behavior and interactions among themselves and with the equipment during classification were successfully modeled through simulations with the...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::893801d813c983472c8329a6d0bd3360
https://doi.org/10.1080/08827508.2019.1635473
https://doi.org/10.1080/08827508.2019.1635473
Autor:
Rodrigo M. de Carvalho, Luís Marcelo Tavares, Pedro P. Cavalcanti, Marcus W. da Silveira, Anderson S. das Chagas
Publikováno v:
Powder Technology. 342:735-743
Surface breakage or attrition occurs when iron ore pellets are subjected to handling stages in which the stressing level is insufficient to cause their massive fracture. This breakage mechanism has been investigated for five types of industrial iron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69481e60d334a89d050758f8dc4237a5
https://doi.org/10.1016/j.powtec.2018.10.044
https://doi.org/10.1016/j.powtec.2018.10.044
Autor:
Riccardo Artoni, Rodrigo M. de Carvalho, Emerson Reikdal da Cunha, Bogdan Cazacliu, Luís Marcelo Tavares, Jaime Moreno-Juez
Publikováno v:
TECNALIA Publications
Fundación Tecnalia Research & Innovation
Materials
Materials, MDPI, 2021, 14 (11), 16 p. ⟨10.3390/ma14113007⟩
Materials, Vol 14, Iss 3007, p 3007 (2021)
Volume 14
Issue 11
Fundación Tecnalia Research & Innovation
Materials
Materials, MDPI, 2021, 14 (11), 16 p. ⟨10.3390/ma14113007⟩
Materials, Vol 14, Iss 3007, p 3007 (2021)
Volume 14
Issue 11
Concrete mixing can lead to mechanical degradation of aggregates, particularly when dealing with recycled concrete aggregates. In this work, the attrition of such materials during mixing is studied by means of experiments and simulations. The effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a9bb6ea0dda219762638a3416f191e
https://pubmed.ncbi.nlm.nih.gov/34206093
https://pubmed.ncbi.nlm.nih.gov/34206093