Electromagnetically actuatable valve for a metallurgical vessel
AssigneeDidier-Werke AG
InventorJose Gimpera
Life of this patent
Estimating the term…
Abstract
A rotary and/or axial slide plate valve for controlling the discharge of molten metal from a metallurgical vessel includes a refractory fixed valve part and a refractory movable valve part at least partially disposed within the fixed valve part, the valve parts having respective peripheral surfaces which establish a seal therebetween. An electromagnetic drive is provided for moving the movable valve part between open and closed positions of the valve. The electromagnetic drive may facilitate rotary and/or axial movement of the movable valve part.
Claims29
A valve structure for controlling the discharge of molten metal in a substantially downward direction from a metallurgical vessel, said valve structure comprising:
- a refractory outer valve part defining an inlet port of the valve, and having therein a recess defined by an inner peripheral surface;
- a refractory inner valve part at least partially fitted within said recess,
- said inner valve part having a channel extending therein, and an outer peripheral surface complementary to and contacting the inner peripheral surface of said refractory outer valve part so as to establish a seal therebetween,
- one of said valve parts fixable to a metallurgical vessel, and the other of said valve parts movable relative to said one of said valve parts between an open position of the valve at which said channel is open to said inlet port and a closed position of the valve at which said inlet port is closed by the seal established between the peripheral surfaces of said inner and said outer valve parts;
- and
- a first component of an electromagnetic drive means for moving said other of said valve parts between said open and said closed positions, said first component being integral with said other of said valve parts.
A refractory valve part for use in a valve for controlling the discharge of molten metal in a substantially downward direction from a metallurgical vessel,
- said refractory valve part being fixable to the metallurgical vessel, defining an outlet of the valve, and having integral therewith at least one coil of an electromagnetic drive means for driving the valve between open and closed positions.
A refractory valve part for use in a valve for controlling the discharge of molten metal in a substantially downward direction from a metallurgical vessel,
- said refractory valve part being movable in the valve, and having integral therewith at least one permanent magnet or at least one iron core of an electromagnetic drive means for driving the valve part between open and closed positions of the valve.
An assembly for controlling the discharge of molten metal from a metallurgical vessel, said assembly comprising:
- a valve including a refractory outer valve part defining an inlet port of the valve, and a recess defined by an inner peripheral surface,
- and a refractory inner valve part at least partially fitted within said recess,
- said inner valve part having a channel extending therein, and an outer peripheral surface complementary to and contacting the inner peripheral surface of said refractory outer valve part so as to establish a seal therebetween;
- refractory material for lining at least a portion of the metallurgical vessel, one of said valve parts being fixedly connected to said refractory material,
- the other of said valve parts being movable relative to said one of said valve parts between an open position of the valve at which said channel is open to said inlet port and a closed position of the valve at which said inlet port is closed by the seal established between the peripheral surfaces of said inner and said outer valve parts;
- and
- an electromagnetic drive means for moving said other of said valve parts between said open and said closed positions, said electromagnetic drive means comprising a first component integral with said other of said valve parts, and a second component integral with said lining.
Dependencies are inferred from the claim text.