Device for opening or closing an opening, in particular a bottom opening of a material bunker for a blast furnace
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United States of America Patent
Stats
-
Jan 2, 2007
Grant Date -
Dec 30, 2004
app pub date -
Jun 16, 2004
filing date -
Jun 17, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for closing or opening an opening, in particular a filling or bottom opening (11) of a material bunker (12) arranged above the furnace throat of a blast furnace, including a tilting disk (10) connectable to a drive. The tilting disk (10) is articulated to two swivel arms (15, 16) pivotably mounted about two swivel axes (13, 14) extending parallel to each other, and to be more precise, in such a manner that the edge areas of the tilting disk (10) situated on a perpendicular to the swivel axes (13, 14) of the two swivel arms (15, 16), upon a movement of these arms, move from the closed into the opened position, and vice versa, along oppositely directed arc paths (23, 24).
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