| 摘要 |
<p>The invention relates to an installation for production of liquid metal by melting a charge of ferrous material, comprising at least one electric melting furnace (2) consisting of a tank (22) closed by a removable cover (23) and associated with electric means (5) for melting the charge of ferrous material, at least one enclosure (1) for preheating the charge and a main circuit (6) for removal of the gas and fumes, equipped with means (61) for eliminating pollutants. According to the invention, the preheating enclosure (1) is associated with autonomous means (4) of supplying heat, and the gases produced inside said enclosure (1) during preheating are removed to an auxiliary circuit (3) for treatment at reduced flow rate, which is equipped with specific means (31) for eliminating pollutants, the fumes produced inside the furnace (2) by the melting of the charge (7) being removed directly to the main treatment circuit (6). <IMAGE></p> |
