Impact of operational parameters on fuel consumption of a blast furnace
AUTOR(ES)
Gasparini, Vitor Maggioni, Castro, Luiz Fernando Andrade de, Moreira, Victor Eric de Souza, Quintas, Alfredo Carlos Bitarães, Viana, Arthur Oliveira, Andrade, Dimas Henrique Barros
FONTE
REM, Int. Eng. J.
DATA DE PUBLICAÇÃO
2017-12
RESUMO
Abstract Process analyses foster opportunities for identifying losses during the production process and consequently, provide courses of action to enhance the process with operational parameters that are compatible with the targeted results. In this study, a thermochemical model was developed in order to monitor the performance of coke-based blast furnaces, focusing on tools for calculating and graphically displaying parameters that facilitate interpretation of the internal phenomena. To apply the model, a database was prepared based on operational simulations of blast furnaces. The input parameters for the model consisted of the properties and consumption of raw materials and the mass and thermal balances of the process. The thermochemical model is based on the calculation of the degree of reduction of the metallic burden in the preparation zone, defined as the omega factor. It was found that the omega factor varies significantly with the CO/CO2ratio and %H2of the top gas. The results obtained by applying this model were coherent, thus validating it as a predictive tool for assessing the sensitivity of the omega factor, which has a major effect on carbon consumption.
Documentos Relacionados
- Combustibility behavior of PCI coals, green petroleum coke and charcoal fines used as fuel for injection into blast furnace tuyeres
- Blast Furnace Hearth Lining: Post Mortem Analysis
- Selection of materials for blast furnace injection using quality indicators
- DYNAMIC TRACTION OF A MECHANIZED SET BASED ON TECHNICAL AND OPERATIONAL PARAMETERS
- Effects of the operational conditions on the membrane and electrode properties of a polymer electrolyte fuel cell