Apparatus for injecting gas into a vessel
Apparatus for injecting gas into a vessel comprises a lance 26 having a gas flow duct 31 extending longitudinally from a rear end to a forward end ( 36 ) from which to discharge gas from the duct. An elongate body 38 disposed within the forward end of the duct is fitted with flow directing vanes 39...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Apparatus for injecting gas into a vessel comprises a lance
26
having a gas flow duct
31
extending longitudinally from a rear end to a forward end (
36
) from which to discharge gas from the duct. An elongate body
38
disposed within the forward end of the duct is fitted with flow directing vanes
39
to impart swirl to the discharging gas. The tip
44
is internally cooled by water supplied and returned through supply and return passages
52, 56
. Cooling water is also passed through internal cooling passages
66, 75, 76, 87
within vanes
39
and central body
38
via water supply and return passage
60
within the duct. |
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