SciELO - Scientific Electronic Library Online

 
vol.70 número4Study of the microstructure and mechanical properties of beta tricalcium phosphate-based composites with alumina addition produced by powder metallurgyEffect of casting mode and thermal treatments on the electrical conductivity of the AA4006 aluminum alloy índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


REM - International Engineering Journal

versão On-line ISSN 2448-167X

Resumo

GASPARINI, Vitor Maggioni et al. Impact of operational parameters on fuel consumption of a blast furnace. REM, Int. Eng. J. [online]. 2017, vol.70, n.4, pp.465-470. ISSN 2448-167X.  http://dx.doi.org/10.1590/0370-44672016700152.

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.

Palavras-chave : furnace; thermochemical model; specific carbon consumption; mathematical models; thermal control.

        · texto em Inglês     · Inglês ( pdf )