Increasing Energy Efficiency of Electric Arc Foundry Furnaces
Abstract
A set of low-cost energy-efficient solutions for electric arc furnaces (EAF) of a foundry class is proposed: ‘deep’ bath, water-cooled panels with a spatial structure, a system of dispersed aspiration. Numerical simulations of thermal operation and gas-dynamics for 3-ton EAF in conditions of long downtime show the possibility of reducing energy consumption by 6.5–9%, fugitive emissions by 2 times, melting dust removal from the
EAF by 19% and significant lowering of specific refractory and electrodes expenditure.
Keywords: electric arc furnace, heat exchange during downtime, energy efficiency, bath geometry, water-cooled elements with a spatial structure, a system of dispersed aspiration
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