F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/96
F27B 1/26 (2006.01) C21B 7/16 (2006.01)
Patent
CA 1245442
ABSTRACT A device is provided for regulating a feed of hot air in the tuyere stock of a shaft furnace. Such a tuyere stock consists of an articulated pipe connecting a circular pipe to a nozzle and which is fitted internally with a refractory lining having an internal passage therethrough for the passage of air. The device comprises a valve, substantially in the form of a disc and performing its movements in a spherical portion of the internal channel defined by the refractory lining and movably mounted on the end of a rod rotatably and hermetically mounted in the tubular support integral with the wall of the tuyere stock and connected on the outside of the tuyere stock to a mechanism serving to pivot the rod and the valve about the longitudinal axis of the rod.
467261
Bernard Gilbert
Calmes Marc
Mailliet Pierre
Gowling Lafleur Henderson Llp
Wurth (paul) S.a.
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