Metallurgical apparatus – Means sealing or opening aperture in vessel
Patent
1993-06-17
1994-10-04
Kastler, Scott
Metallurgical apparatus
Means sealing or opening aperture in vessel
266 45, C21B 712
Patent
active
053519396
ABSTRACT:
A machine for piercing a taphole for a shaft furnace in the so called "lost rod" method is presented. After the taphole is blocked with a taphole clay but before the taphole clay has fully hardened, a piercing rod is driven into the taphole clay by this machine so that at the desired time the taphole can be opened by extracting the piercing rod by this same machine. This piercing machine comprises a mounting, a first carriage which can be displaced along the mounting, a drive mechanism for this first carriage, guide mechanism to guide the piercing rod and finger mechanism capable of exerting axial thrust upon the piercing rod. The guide means define a guide channel for the piercing rod, which guide mechanism also has a longitudinal opening that gives access to the inside of the guide mechanism, the guide channel being perpendicular to the axis of the longitudinal opening. A finger that has the ability to exert an axial thrust on one end of the piercing rod penetrates through the longitudinal opening inside the guide channel.
REFERENCES:
patent: 2705630 (1955-04-01), Taddeo
patent: 4893794 (1990-01-01), Mailliet et al.
patent: 5069430 (1991-12-01), Woodings et al.
patent: 5192489 (1993-03-01), Metz et al.
Kremer Victor
Lonardi Emile
Malivoir Philippe
Thillen Guy
Kastler Scott
Paul Wurth S.A.
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