| 摘要 |
The invention relates to a steel-structured, water-cooled electric arc furnace lid that is fitted in a gas-tight manner on top of the furnace vessel and provided with lead- throughs for electrodes and apertures for material feed, the underneath surface of said lid being provided with refractory lining. The lid is planar and constructed of at least three planar double casing panels, so that the lid meets the vertical edge of the vessel at right angles. |
