Porous nozzle for molten metal vessel

Details Porous nozzle for molten metal vessel Porous nozzle for molten metal vessel

F - Mech Eng,Light,Heat,Weapons

27

D

39/105

F27D 3/14 (2006.01)

Patent

CA 1141160

ABSTRACT OF THE DISCLOSURE: POROUS NOZZLE FOR MOLTEN METAL VESSEL A refractory porous nozzle which is arranged at the bottom of a molten metal vessel, characterized in that said porous nozzle is made in one body having a flange portion at its upper portion and a cylindrical portion at its lower portion, the outer peripheral surface of the main body of said porous nozzle is gas- tightly enclosed with a steel shell, a gas pool is provided between the bottom surface of said flange portion and the outer peripheral surface of said cylindrical portion, and the inner peripheral surface of said steel shell, and the gas pool is communicated with an inert gas feeding pipe.

372875

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