Tap hole plugging device

Details Tap hole plugging device Tap hole plugging device

1995-01-13

1996-04-30

Kastler, Scott

Metallurgical apparatus

Means sealing or opening aperture in vessel

By means plugging aperture

266271, C21C 548

Patent

active

055117686

ABSTRACT:
Device for plugging a tap hole comprising an expulsion piston fitted in a plugging chamber, a first double-acting hydraulic actuator positioned behind the piston and a first channel passing through the piston for the passage of a piercing rod, and the first actuator. The device further comprises a second double-acting hydraulic actuator positioned behind the first actuator, equipped with a second channel for the passage of a rod, a control means for imposing a to-and-fro movement on the second actuator, and a first gripping means movable by the second actuator. This first gripping means makes it possible to grip and release a rod in order to push it, by successive travels, through the two channels in the direction of the plugging nose-piece.

REFERENCES:
patent: 4909487 (1990-03-01), Schneider
patent: 5395095 (1995-03-01), Marino et al.

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