C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
39/58
C21B 7/20 (2006.01) C21B 7/18 (2006.01) F27B 1/20 (2006.01)
Patent
CA 1291642
ABSTRACT "Device for closing a top central opening of a vessel, and its application to a storage hopper in a shaft fur- nace charging installation". The device comprises a sealing valve (44) carried by a control arm (68) inside the vessel (28) and cooper- ating with a seat (54) around said opening. The mechan- ism for operating the valve (44) comprises a hollow rotary support (60) housed about its axis of rotation X in a leaktight bearing (62) on the wall of the vessel (28) and connected to the other end of the control arm (68) by means of a device permitting axial displacement of the valve (44) in relation to its seat. In order to reduce the space required for the movements of the valve, the support (60) of the valve operating mechanism is mounted in such a manner that its axis of rotation X forms an acute angle with the vertical axis of the open- ing of the vessel (28).
540767
Mailliet Pierre
Schilz Germain
Gowling Lafleur Henderson Llp
Paul Wurth S.a.
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