发明名称 |
METALLURGICAL LANCE WITH FLAME DETECTOR |
摘要 |
<p>A metallurgical lance comprises a fibre optic (40) housed within the lance or in a tube mounted thereon, the fibre optic being protected against the heat and arranged to view the flame at the lance tip (50) to provide a signal for flame detection purposes. The fibre optic may as shown be located within a central fuel gas passage (10) of the lance which is surrounded by an oxygen air passage (15) itself enclosed in a cooling jacket (20). The output of the fibre optic may pass through a lens and may be applied to a system to discriminate signals in the range 200-600 Hertz. <IMAGE></p> |
申请公布号 |
GB2150269(B) |
申请公布日期 |
1986.10.15 |
申请号 |
GB19830031572 |
申请日期 |
1983.11.25 |
申请人 |
* TOLLTRECK LIMITED |
发明人 |
FRANCIS JAMES * SIMMONDS;JOHN GRAHAM * WHELLOCK |
分类号 |
C21C5/46;C21C5/52;F23M11/04;F27B3/20;F27D21/00;F27D99/00;G01J5/04;(IPC1-7):F27D21/02 |
主分类号 |
C21C5/46 |
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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