发明名称 |
Guard arrangement for a bottom electrode of a direct-current arc furnace |
摘要 |
A direct-current electric arc furnace for melting metals, including a furnace vessel and a bottom electrode mounted in the bottom of the furnace vessel. To prevent molten metal from contacting with current-carrying and liquid-cooled parts of the bottom electrode in the event of an unforeseen break-out of the furnace vessel bottom of the electric furnace, a shielding roof is provided as a guard between the furnace vessel bottom and the current-carrying and liquid-cooled parts. The shielding roof is formed in the shape of a truncated cone and is open downwards. The shielding roof is preferably rigidly joined to the furnace vessel bottom and is formed at least in part with a roof made of refractory material.
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申请公布号 |
US4564950(A) |
申请公布日期 |
1986.01.14 |
申请号 |
US19840633983 |
申请日期 |
1984.07.24 |
申请人 |
BBC BROWN, BOVERI & COMPANY LIMITED |
发明人 |
BUEHLER, KARL |
分类号 |
H05B7/12;C21C5/52;F27B3/08;F27D11/10;H05B7/06;(IPC1-7):H05B7/20 |
主分类号 |
H05B7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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