Slag door for a melting furnace
AssigneeDanieli & C. Officine Meccaniche SpA
InventorsPaulo Da Costa, Franco Scotti, Paolo Burin
Life of this patent
Estimating the term…
Abstract
A slag door for a melting furnace for the production of steel is suitable to be associated with an aperture provided in a lateral wall of the melting furnace and to cooperate with a slag channel provided inside the melting furnace itself.
Claims17
A slag door for a melting furnace for the production of steel, the slag door suitable to be associated with an aperture provided in a lateral wall of the melting furnace and to cooperate with a slag channel provided inside the melting furnace, the slag door comprising:
- a frame on which a sliding closing panel is mounted, the frame configured to selectively assume a lowered position to close said slag channel, in which a lower part of the closing panel substantially abuts a base surface of the slag channel, and a raised position to open said slag channel in which the closing panel is partly or completely raised;
- and
- a slag removal device, mounted on and movable relative to said frame the slag removable device comprising a cleaning arm having at its end a cleaning element configured to be moved inside the slag channel when the closing panel is in the raised position;
- said slag removal device having a working operating position, when the sliding closing panel is located in the raised opening position, in which the cleaning element moves until it penetrates through the aperture of the melting furnace along the slag channel and exerts a cleaning and descaling action on the slag present in said slag channel, and an inactive operating position in which the sliding closing panel is raised and outside the bulk of said aperture of the melting furnace,
- wherein the slag removal device further comprises a movement arm having a first end hinged to the frame and a second end hinged to the cleaning arm, thereby defining a double articulation arm.
A slag door for a melting furnace for the production of steel, the slag door suitable to be associated with an aperture provided in a lateral wall of the melting furnace and to cooperate with a slag channel provided inside the melting furnace, the slag door comprising:
- a frame on which a sliding closing panel is mounted, the frame configured to selectively assume a lowered position to close said slag channel, in which a lower part of the closing panel substantially abuts a base surface of the slag channel, and a raised position to open said slag channel in which the closing panel is partly or completely raised;
- and
- a slag removal device, mounted on and movable relative to said frame, the slag removable device comprising a cleaning arm having at its end a cleaning element configured to be moved inside the slag channel when the closing panel is in the raised position;
- said slag removal device having a working operating position, when the sliding closing panel is located in the raised opening position, in which the cleaning element moves until it penetrates through the aperture of the melting furnace along the slag channel and exerts a cleaning and descaling action on the slag present in said slag channel, and an inactive operating position in which the sliding closing panel is raised and outside the bulk of said aperture of the melting furnace,
- wherein the slag removal device is hinged to the frame, and
- wherein said closing panel is provided with a pressure transducer configured to detect when the closing panel is substantially abutting the base surface of the slag channel in the lowered closing position.
Dependencies are inferred from the claim text.