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Your search keyword '"Grillo, Felipe Fardin"' showing total 120 results
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120 results on '"Grillo, Felipe Fardin"'

1. Clean Carbon Steelmaking: Evaluating the Replacement of Mineral Coal with Malt Biochar in Iron Ore Pelletization: Clean Carbon Steelmaking: Evaluating the Replacement of Mineral Coal with Malt Biochar in Iron Ore Pelletization

Author

Rosso Neto, Lucio, da Silva Rodrigues, Carolina, Borgert, Carlos Henrique, da Silva Silveira, Vitoria, Milanez, Mateus, Grillo, Felipe Fardin, de Oliveira, José Roberto, Cuzzuol, Danubia Junca, Frizon, Tiago Elias Allievi, Zimmermann, Matheus Vinicius Gregory, and Junca, Eduardo

Published
2025
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11. Artificial Neural Network-Based Non-Linear Modeling and Simulation of CaO-SiO 2 -Al 2 O 3 -MgO Blast Furnace Slag Viscosity.

Author

dos Anjos, Patrick, Coleti, Jorge Luís, Junca, Eduardo, Grillo, Felipe Fardin, and Machado, Marcelo Lucas Pereira

Subjects
ARTIFICIAL neural networks, BLAST furnaces, CRITICAL temperature, VISCOSITY, SLAG
Abstract

Blast furnace slags are formed by CaO-SiO2-Al2O3-MgO systems and have several physical characteristics, one of which is viscosity. Viscosity is an important variable for the operation and blast furnace performance. This work aimed to model viscosity through linear and non-linear models in order to obtain a model with precision and accuracy. The best model constructed was a non-linear model by artificial neural networks that presented 23 nodes in the first hidden layer and 24 nodes in the second hidden layer with 6 input variables and 1 output variable named ANN 23-24. ANN 23-24 obtained better statistical evaluations in relation to 11 different literature equations for predicting viscosity in CaO-SiO2-Al2O3-MgO systems. ANN 23-24 was also subjected to numerical simulations in order to demonstrate the validation of the non-linear model and presented applications such as viscosity prediction, calculation of the inflection point in the viscosity curve by temperature, the construction of ternary diagrams with viscosity data, and the construction of iso-viscosity curves. [ABSTRACT FROM AUTHOR]

Published
2024
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18. Green Ironmaking Industry: Production of Iron Pellets Using Lime Sludge

Author

Rosso Neto, Lucio, primary, Borgert, Carlos Henrique, additional, Oliveira, José Roberto de, additional, Grillo, Felipe Fardin, additional, Manfredi, Gabriel Valério Pereira, additional, Coleti, Jorge Luis, additional, Espinosa, Denise Crocce Romano, additional, Tenório, Jorge Alberto Soares, additional, Gesuino, David Batista, additional, Frizon, Tiago Elias Allievi, additional, and Junca, Eduardo, additional

Published
2023
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27. Use of CaO-Al2O3 Synthetic Slag on EAF Tapping for Steel Desulfurization.

Author

da Silva Renato, Lucas, de Souza, Raphael Mariano, Santos Dagostini, Víctor dos, Vieira, Estefano, Grillo, Felipe Fardin, de Paola, Jean Carlo Camasmie, and de Oliveira, José Roberto

Subjects
SLAG, FERROSILICON, ELECTRIC arc, ELECTRIC furnaces, ARC furnaces, LIME (Minerals), DESULFURIZATION
Abstract

Steel desulfurization is usually performed by CaO-Al2O3-based top slags. However, in the steelmaking process at a steel mill in the city of Cariacica, ES, Brazil, deoxidation is carried out on tapping with the addition of ferrosilicon-manganese and silicon carbide, and desulfurization is carried out in the ladle furnace with the addition of lime and calcium carbide. The present work aims to change this process by adding a CaO-Al2O3 system slag during the electric arc furnace (EAF) steel tapping, so that the desulfurization occurs already in this step, thus enabling CaC2 economy in the ladle furnace. Three lime/alumina briquette ratios were determined, where the CaO activity, liquid slag ratio and viscosity were analyzed. Then, the desulfurization yields of these heats were compared to the conventional route. The influence of additions and of the slag carryover on desulfurization efficiency was analyzed by correlation charts and a mathematical model developed. It was found that the slag carryover from the EAF impairs the desulfurization, causing sulfur reversion from tapping until the ladle furnace arrival, and decreasing the desulfurization rate on the ladle furnace treatment by promoting high-equilibrium sulfur content, close to the real reached value. The most efficient slags were the ones with the greatest calcium oxide activities, which is in line with the steel desulfurization factor. [ABSTRACT FROM AUTHOR]

Published
2024

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