Double chamber single directional spiral tuyere for blast...

Details Double chamber single directional spiral tuyere for blast... Double chamber single directional spiral tuyere for blast...

2006-12-11

2009-06-23

Kastler, Scott (Department: 1793)

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

C266S265000

Reexamination Certificate

active

07550109

ABSTRACT:
A double chamber single directional spiral tuyere for blast furnaces is disclosed. The tuyere includes a body unit, a spiral unit and a cover unit, with a body chamber having a body nose passage and a body main passage defined in the body unit, and a nose chamber having first, second, third and fourth spiral passages defined in both the spiral unit and the cover unit. The tuyere further includes a tunnel, which is formed in the spiral unit and the cover unit and connects a cooling water inlet to the first spiral passage. Thus, efficient circulation of cooling water and maximum cooling performance can be provided.

REFERENCES:
patent: 6446565 (2002-09-01), Stricker et al.

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