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US 5,686,008 AGranted
Closure and regulation apparatus for a metallurgical vessel
AssigneeDidier-Werke AG
InventorsRaimund Bruckner, Jose Gimpera, Steve Lee
Life of this patent
Estimating the term…
Abstract
A closure and/or regulation apparatus for controlling the outflow of melt from a metallurgical vessel includes a stator and a rotor rotatable relative to the stator. Additional responsive control of outflow is provided by a chamber that is part of or is connected to an outflow channel that can be connected to a vacuum generator.
Claims19
An apparatus for controlling the discharge of a melt from a metallurgical vessel, said apparatus comprising:
- a stator and a rotor that is rotatable relative to said stator, said stator and said rotor having cooperating sealing surfaces, and said stator and said rotor having therethrough, in the region of said sealing surfaces, respective through passages that lead to an outflow channel and that can be brought into and out of alignment by rotation of said rotor relative to said stator;
- an underpressure chamber defined by at least one of said stator and said rotor, said underpressure chamber being located above said through passages and being connected to said outflow channel;
- and
- a conduit connected to said underpressure chamber and extending through at least one of said stator and said rotor to connect said underpressure chamber with a source of vacuum.
1 more element
An apparatus for controlling the discharge of a melt from a metallurgical vessel, said apparatus comprising:
- a stator and a rotor that is rotatable relative to said stator, said stator and said rotor having cooperating sealing surfaces, and said stator and said rotor having therethrough, in the region of said sealing surfaces, respective through passages that lead to an outflow channel and that can be brought into and out of alignment by rotation of said rotor relative to said stator;
- said outflow channel including a sump chamber leading to a downstream portion, relative to a direction of flow of melt through said outflow channel;
- and
- a conduit connected to said outflow channel adjacent one of said sump chamber and said downstream portion to connect said outflow channel to a source of vacuum.
1 more element
Dependencies are inferred from the claim text.