F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
39/98
F27D 3/15 (2006.01) B22D 2/00 (2006.01) B22D 41/14 (2006.01) C21C 5/46 (2006.01)
Patent
CA 1113716
ABSTRACT OF THE DISCLOSURE: A tap-hole closing arrangement comprises a closure body which is insertable into the tap hole on leaving free an an- nular gap relative to the tap hole wall and includes a com- pressed-gas conduit and an outer jacket that tapers towards the mouth of the compressed-gas conduit. For applying this arrangement to big converters and improving its slag-reten- tion effect, the outer jacket is formed by a spherical-calot- te-shaped face passing over into a frustroconical face, the height of the truncated cone being at least 1 time and at most 2.5 times the diameter of the mouth-side outlet opening of the compressed-gas conduit, and the aperture angle of the truncated cone amounting to at least 15 and at most 70°.
335140
Fetherstonhaugh & Co.
Voest - Alpine Aktiengesellschaft
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