Modelling of electric arc furnace off-gas removal system

Abstract

A mathematical model of an electric arc furnace off-gas removal system, aimed at improving the energy efficiency of the smelting process, was created and verified by methods of physical modelling and numerical simulations. For an industrial-scale furnace, equipped with annular distributing off-gas suction system, the possibility to reduce fugitive emissions by 40%, air inflow by 24%, total emissions by 13% and the melting dust removal by 33% was shown. The obtained data will allow, according to estimations, specific energy consumption to reduce by at least 16-20 kW h t 21 and increase the environmental performance of the furnace.

Simulação Computacional Da Carcaça Metálica Inferior Do Forno Elétrico a Arco Da Siderúrgica Sinobras S.A

“…Atualmente 35% do aço mundial são fundidos em Fornos Elétricos a Arco (FEAs) [1]. Os FEAs utilizados em aciarias para a fusão da sucata metálica representam, sem dúvida, o instrumento mais versátil de produção de aço, e vêm se tornando também, nas últimas décadas, um dos mais eficientes [2].…”

Analysis of electric arc furnaces efficiency via frequency spectrum-based arc coverage detection

“…For these reasons, EAF studies constitute a very active research field and many improvements have been proposed in the last years. [3][4][5][6][7][8][9] Even though there have been many improvements in the process, 10 the standard set-up involving an EAF is still inefficient; e.g. considerable heat is lost through: the off-gas system, the disposed slag, the slag door (when opened) and the water-cooled panels.…”