Closure apparatus for a tap hole in the bottom of a...

Details Closure apparatus for a tap hole in the bottom of a... Closure apparatus for a tap hole in the bottom of a...

F - Mech Eng,Light,Heat,Weapons

27

D

39/98

F27D 3/15 (2006.01) B22D 41/14 (2006.01) C21B 7/12 (2006.01)

Patent

CA 1277137

ABSTRACT Closure apparatus for a tap hole in the bottom of a metallurgical vessel Provided for the tap hole in the bottom of a metallurgical vessel is a closure apparatus comprising a shut-off member which can close off the tap hole from below, and a pipe which is displaceable from above through the molten bath into a lowered blocking position in which it bears against the upper edge of the tap hole. An axially displaceable lance may be disposed in the pipe so that the pipe can be used for burning open the tap hole, by means of oxygen. Filling material which is capable of flow can also be introduced into the tap hole, through the pipe. The closure apparatus makes it possible to carry out a sump mode of operation, without tilting the vessel

492951

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