Apparatus for repairing the tap hole of a converter

Details Apparatus for repairing the tap hole of a converter Apparatus for repairing the tap hole of a converter

1979-03-20

1981-05-05

Andrews, M. J.

Metallurgical apparatus

Means sealing or opening aperture in vessel

By means plugging aperture

266 45, 264 30, 222146C, C21B 712

Patent

active

042654335

ABSTRACT:
This invention discloses a method and an apparatus which can efficiently repair the tap hole of a converter even under high temperature. The method and apparatus employ an injection pipe of a unique construction for applying refractory material onto the inner surface of the tap hole. Such injection pipe is of a circular cylindrical construction and is provided with a pipe cooling means and, preferably, with a perforated mold sleeve which encases the injection pipe. Due to such construction, the refractory material charged into the injection pipe can be smoothly and uniformly injected through an injection opening formed at the front portion of the injection pipe and apertures of the perforated mold sleeve onto the inner surface of the tap hole, whereby thus applied refractory material can show the improved adhesion rate and properties while defining a predetermined optimal diameter to the tap hole after the repairing operation.

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