发明名称 |
ROOF FOR ARC FURNACE |
摘要 |
<p>A roof assembly for an arc furnace is disclosed in which a furnace roof ring and a plurality of roof unit are assembled together to define a roof section frustoconical in cross section and with a roof top opening, and a roof top made of an electrically insulating refractory and provided with electrode holes is closely fitted into the roof top opening. Each sectionalized roof unit comprises a main body cast from cast iron or copper, and a cooling coil embedded in the main body with end sections being extended out of the upper major upper surface of the main body so as to be used as a cooling water inlet and an outlet. In order to ensure the satisfactory high-temperature strength and thermal-shock resistance, the inner major surface of the main body directed toward the inside of the furnace is partially lined with the refractory or corrugated.</p> |
申请公布号 |
CA1040694(A) |
申请公布日期 |
1978.10.17 |
申请号 |
CA19750238581 |
申请日期 |
1975.10.29 |
申请人 |
ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA |
发明人 |
NANJYO, TOSHIO;AOSHIKA, MASAYUKI |
分类号 |
F27D1/12;(IPC1-7):27D1/12 |
主分类号 |
F27D1/12 |
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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