2. Arc furnace principle
Note: Gas flow rates are expressed in cubic meters measured under normal temperature and pressure conditions (0 ˚C and 1.013 · 10 5 Pa).
2.1 AC-powered furnace
The Héroult-type electric melting furnace or free-arc furnace is three-phase. It consists essentially of a refractory-lined vessel, tilting for pouring and deslagging, designed to receive the metal charge, which is melted by means of three vertical graphite electrodes (see figure 17 mark A).
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Arc furnace principle
Arc furnace technology description
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