| 摘要 |
A roof (3) for a metallurgical ladle/furnace (L.A.F) (1) comprising a self-supporting structure of metallic pipework (4) defining at least one flow circuit for cooling water, with a lower end having a circular peripheral flange (A), with a cylindrical body member (c) of smaller diameter than the flange (A) located above the flange (A) (in use away from the ladle/furnace), and is provided with an end wall (14) having a plurality of apertures (14) each to receive, in a gas-tight manner, a carbon electrode (8), and an aperture (5) for fume extraction provided in the arcuate wall (16) of the cylindrical body member.
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