Abstract: A device is provided for inserting a refractory block (20) into a taphole structure (10) of a metallurgical vessel, in particular a basic oxygen furnace (BOF). The refractory block (20) is carried by a mounting unit (25) and having a proximate end (26), which can be introduced into the taphole. A distal end (27) with locking elements (28), which can be coupled to a locking plate (31) of the vessel, is disposed at the outside of the taphole (21) of the vessel (11). The refractory block (20) can be introduced into the taphole structure (10) until the locking elements (28) of the mounting unit (25) can be attached to and coupled with the coupling head (30) with a manipulator. This mounting unit (25) can be respectively uncoupled also with the manipulator, when the refractory block (20) is mortared and fixed in the lining (12), whereby the mounting unit (25) can be decoupled and removed solely out of the taphole (21).
Type:
Application
Filed:
November 3, 2015
Publication date:
November 16, 2017
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Abstract: The invention relates to a refractory submerged entry nozzle (also called SEN or casting nozzle) especially but not limited for use in a continuous casting process for producing steel.
Type:
Grant
Filed:
April 15, 2014
Date of Patent:
November 14, 2017
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.
Type:
Grant
Filed:
March 22, 2013
Date of Patent:
October 31, 2017
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Gerald Nitzl, Arno Stranimaier, Hans-Jürgen Haslinger, Helmut Kaufmann
Abstract: The invention relates to a sliding closure for a metallurgical vessel, comprising at least two fireproof closure plates (3, 4, 5) that can be pressed against each other and can each be clamped in a plate frame (7, 8, 9) by means of clamping jaws (10, 11, 12) that can be actuated by means of an eccentric unit (15). In order to actuate the clamping jaws (10, 11, 12), the eccentric units (15) are each provided with a rotary part (151), which has an upper and lower eccentric (28 and 29) and a centering pin (30), which is supported in the plate frame (7, 8, 9), wherein the one eccentric (28) acts on the clamping jaw (10, 11, or 12). Advantageously, the upper eccentric (29) interacts with a part (34) of the plate frame (7, 8, 9) in such a way that the upper eccentric is pressed against said part (34) in a clamping direction in the outer region (36) of the upper eccentric when the clamping jaw (10, 11, 12) is released. Thus, a plate exchange can be performed safely.
Type:
Application
Filed:
July 10, 2015
Publication date:
September 14, 2017
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Abstract: A tap on a metallurgical vessel, in particular an electric arc furnace, is provided with a refractory end brick (6) that has an outlet opening (10). There is assigned to the lower face surface (11) of the end brick (6) a slot (15) which is shaped such that with the latter a tear-off edge (16) is generated on the outlet opening (10) when emptying the vessel. This slot (15) is annular in form and is provided here with a radially outwardly inclined inclined surface (18), and this tear-off edge (16) is thus formed immediately following the outlet opening (10). Thus, after each tapping process, the tap can be cleaned without manual assistance by shearing off with the front edge of the plate of the closure device.
Type:
Application
Filed:
August 25, 2015
Publication date:
September 14, 2017
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Inventors:
Josse Bachmayer, Karl Michael Zettl, Markus Hochegger
Abstract: Slide closure for a vessel containing molten metal includes a slide housing and a slide unit that can be displaced longitudinally towards the slide housing, at least one refractory closure plate can respectively be inserted into the slide housing. The closure plates can be pressed against one another by the slide unit being braced against the slide housing. The closure plates can respectively be fixed or centered therein by a placement device having a displaceable positioning element. These placement devices are respectively designed such that upon bracing the slide unit against the slide housing, placing of the positioning element and clamping or centering of the respective closure plate is brought about therein. Therefore, despite easier operation, increased operating reliability is guaranteed because the closure plates are clamped and centered mechanically.
Type:
Grant
Filed:
October 9, 2013
Date of Patent:
September 12, 2017
Assignee:
Refractory Intellectual Property GmbH & Co. KG
Abstract: An exemplary embodiment relates to a submerged entry nozzle (SEN) for use in metallurgy, in particular for transporting a metal melt from a first metallurgical unit to a second metallurgical unit, for example during slab production in continuous casting of ferrous and non-ferrous melts. The SEN is called nozzle hereinafter.
Type:
Grant
Filed:
January 6, 2014
Date of Patent:
September 12, 2017
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Abstract: The invention relates to a refractory ceramic brick assembly. In other words: The subject of the invention relates to a multiplicity of refractory ceramic bricks which are arranged to one unit in a specific way, i. e. combined with each other.
Type:
Application
Filed:
February 24, 2015
Publication date:
March 2, 2017
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Abstract: The invention relates to a composition (batch) for producing a shaped refractory ceramic product, a method for producing a shaped refractory ceramic product, and a shaped refractory ceramic product.
Type:
Application
Filed:
January 20, 2015
Publication date:
January 26, 2017
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Inventors:
Ulrich Nebe, Roland Nilica, Barbara Zluc
Abstract: Gas purging element (10) for metallurgical applications, comprising the following features in its mounted state: a ceramic refractory body (10, 30) with a lower end and an upper end, the upper end features an upper front surface, the lower end features a lower front surface (12), a depression (20) extends from the lower front surface (12) into the lower end of the ceramic refractory body (10), the depression (20) comprises a first part (16, 16?, 16?) of a detachable, form-fit connection to a gas connection element (50), a fluidic connection for a treating gas through at least one gas permeable section (30) of the ceramic refractory body (10) is provided between the depression (20) and the upper front surface.
Type:
Application
Filed:
November 11, 2014
Publication date:
October 6, 2016
Applicant:
Refractory Intellectual Property GMBH & Co. KG
Inventors:
Bernd Trummer, Michael Klikovich, Roman Kulp, Leopold Kneis
Abstract: The invention relates to a method for determining the state of a fire-resistant lining of a vessel (10) containing molten metal in particular. In the process, maintenance data, production data, and wall thicknesses at least at locations with the highest degree of wear are measured or ascertained together with additional process parameters of a vessel (10) after the vessel (10) has been used. Said data is then collected and stored in a data structure. A calculating model is generated from at least some of the measured or ascertained data or parameters, and said data or parameters are evaluated by means of the calculating model using calculations and subsequent analyses. Thus, related or integral ascertaining processes and subsequent analyses can be carried out, on the basis of which optimizations relating to both the vessel lining as well as the complete process of the molten metal in the vessel are achieved.
Abstract: The invention refers to an industrial furnace cover. Such a furnace can be, i.a., any metallurgical melting and/or treatment vessel, for example an electric arc furnace.
Type:
Grant
Filed:
December 30, 2011
Date of Patent:
September 27, 2016
Assignee:
Refractory Intellectual Property GmbH & Co. KG
Abstract: The invention relates to a method for producing a refractory material based on magnesia or magnesia spinel, and to a refractory material based on magnesia or magnesia spinel.
Type:
Grant
Filed:
September 26, 2013
Date of Patent:
August 30, 2016
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Harald Harmuth, Sabine Gschiel, Zoltan Lences, Pavol Sajgalik
Abstract: Refractory ceramic gas purging element, comprising the following features: the gas purging element has a refractory ceramic body (10), through which a gas can flow in an axial direction (A-A) of the gas purging element, between its first end (10u) and its second end (10o), a chamber (20) is arranged at the first end (10u) of the refractory ceramic body (10), which chamber extends over at least 50% of the cross section of the refractory ceramic body at its first end (10u), a gas feeding line (30) enters into said chamber (20), at a distance to said refractory ceramic body (10), at a section towards the refractory ceramic body (10) the chamber (20) is at least partially permeable to gas, in the chamber (20) at least one plate (50) is arranged, which is freely moveable in the axial (A-A) direction of the gas purging element between a first end position, being offset to the refractory ceramic body (10), and a second end position, being adjacent but at a distance to a section of the refractory ceramic body (10) wh
Type:
Application
Filed:
March 2, 2015
Publication date:
July 21, 2016
Applicant:
Refractory Intellectual Property GMBH & Co KG
Abstract: The invention relates to a fireproof (refractory) ceramic impact pad (also called impact pot, German: Pralltopf), which is typically installed along the bottom of a vessel treating metallurgical melts at an area where the metal melt, poured into the vessel, normally hits the vessel bottom. Insofar the impact pot has the task to protect the refractory bottom of the metallurgical vessel (to reduce its wear) and/or to distribute the metal melt within the vessel.
Type:
Application
Filed:
July 3, 2014
Publication date:
June 16, 2016
Applicant:
Refractory Intellectual Property GMBH & Co., KG
Inventors:
Gernot Lukesch, Sarah Kohler, Gernot Hackl