Method and apparatus for repairing the tap hole of a converter

Details Method and apparatus for repairing the tap hole of a converter Method and apparatus for repairing the tap hole of a converter

B - Operations, Transporting

23

P

26/207

B23P 6/04 (2006.01) C21C 5/44 (2006.01) C21C 5/46 (2006.01)

Patent

CA 1096149

ABSTRACT OF THE DISCLOSURE: 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 refrac- tory 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.

324736

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