Abstract: The invention relates to a refractory ceramic batch for the production of an unformed refractory ceramic batch, the use of a batch of this kind for lining metallurgical melting vessels and also a metallurgical melting vessel which is lined with an unformed refractory ceramic product based on a batch of this kind.
Type:
Grant
Filed:
January 22, 2015
Date of Patent:
March 26, 2019
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Abstract: The invention relates to a method for producing a raw material for the production of refractory ceramic products, a raw material produced by said method, and a raw material for producing refractory ceramic products.
Type:
Grant
Filed:
March 23, 2016
Date of Patent:
March 19, 2019
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Karl Budna, Thomas Deutsch, Rainer Neubock
Abstract: The invention relates to a ceramic refractory casting nozzle for metallurgical applications. The term “nozzle” includes all types of substantially tube-shaped refractory parts which allow a metal melt flowing through a corresponding casting channel. This includes, i. a. a so-called submerged entry nozzle (SEN) and a so-called ladle shroud.
Type:
Grant
Filed:
May 5, 2014
Date of Patent:
March 19, 2019
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Abstract: Slide closure unit on the spout of a metallurgical vessel, preferably a copper-anode furnace, includes a housing in which refractory closure plates, as well as at least one connecting refractory inner casing, are arranged. A removable induction heater is provided, having at least one induction coil surrounding the refractory inner casing outside of the housing. In this way, it is possible to constantly keep the melt located in the outlet channel of the spout sufficiently warm so that it does not freeze before and/or during the pouring of the melt, or that any frozen metal and/or slag can be melted in the spout.
Type:
Application
Filed:
November 29, 2016
Publication date:
December 6, 2018
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Inventors:
Goran Vukovic, Klaus Gamweger, Bojan Zivanovic
Abstract: Method for determining the state of a fire-resistant lining of a vessel containing molten metal in particular in which 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 at least one identical/similar vessel after the vessel has been used. The data is 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 the data or parameters are evaluated using 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.
Type:
Application
Filed:
June 7, 2018
Publication date:
December 6, 2018
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Inventors:
Gregor Lammer, Christoph Jandl, Karl-Michael Zettl
Abstract: A method relates in particular to the repair of a refractory lining of a metallurgical vessel (10) in the hot state. This repair takes place here by means of an supplying apparatus (15). In addition, recording of at least the worn regions and monitoring of the repair are carried out by means of a device (20). Before, during and/or after the supplying of at least a partial region of the areas (13) of the refractory lining (12) of the vessel (10) to be repaired or the gunning jet (18) is recorded photographically here with visualisation of the temperature ranges (26, 27, 28), and this results in an evaluation with regard to different parameters such as properties, layer thickness and/or distribution of the supplied material. It has been demonstrated that by means of this visualisation of the temperature ranges of the areas to be repaired and of the refractory material during supplying different parameters can be established very accurately, and as a result optimal coating of the wall lining can be achieved.
Type:
Application
Filed:
May 13, 2016
Publication date:
July 26, 2018
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Abstract: The invention relates to a refractory product comprising zirconium dioxide, a use of zirconium dioxide, a zirconium dioxide, a method for manufacturing a refractory product and a refractory product manufactured by means of said method. The zirconium dioxide is in cubic form and is metastable at room temperature. The zirconium dioxide has a content of calcium, magnesium and yttrium of less than 1% by weight.
Type:
Grant
Filed:
May 28, 2015
Date of Patent:
June 19, 2018
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Abstract: The invention concerns a batch for the production of a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product, a process for the production of a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product, a refractory magnesia-carbon product or a refractory alumina-magnesia-carbon product as well as the use of a magnesia-carbon product or a refractory alumina-magnesia-carbon product.
Type:
Grant
Filed:
June 29, 2015
Date of Patent:
May 15, 2018
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Clemens Ebner, Bernd Neubauer, Andreas Rief, Alexander Maranitsch, Bernd Trummer
Abstract: An exemplary embodiment relates to a fireproof ceramic bottom in the connection region to at least one wall of a vessel for handling high-temperature melts.
Type:
Grant
Filed:
December 3, 2013
Date of Patent:
May 8, 2018
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Alexander Maranitsch, Matthias Hoeck, Marcus Kirschen
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:
Grant
Filed:
July 3, 2014
Date of Patent:
February 13, 2018
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Gernot Lukesch, Sarah Kohler, Gernot Hackl
Abstract: The invention relates to a method and to a device for repairing the spout sleeve (6) of a metallurgical vessel which is fitted securely within the refractory lining (4, 5) of the vessel (1). According to the invention the sleeve is repaired by applying mortar to the casting channel (7) of the sleeve (6) with a mortar dispenser (9) that can be inserted into the casting channel (7), which upon removing the mortar dispenser from the casting channel calibrates the latter over the entire length of the channel. The mortar dispenser (9) is driven rotating coaxially to the casting channel (7) during the mortar application and, after a defined time, is removed from the casting channel (7), still rotating. The method is particularly suitable for repairing the inner sleeve of a casting ladle with a slide closure adjoining the ladle spout, maintenance of which is automatically carried out in a maintenance station of the casting facility.
Type:
Application
Filed:
December 4, 2015
Publication date:
February 1, 2018
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Inventors:
Raphael Renggli, Damian Schacher, Paul Guenther
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:
Grant
Filed:
November 11, 2014
Date of Patent:
January 30, 2018
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Bernd Trummer, Michael Klikovich, Roman Kulp, Leopold Kneis
Abstract: A slide closure (10) for a container containing molten metal is provided with a housing part (1) that can be fastened to the latter and a slider unit (2) that can be displaced longitudinally relative to it, into which a fireproof plate (4 or 5) can respectively be inserted. The slider unit (2) is held by a number of holding means (6a, 6b; 7a, 7b) fastened to the housing part (1) perpendicular to the slider unit such that it can be displaced longitudinally. The holding means (6a, 6b; 7a, 7b) are individually fastened releasably to the housing part (1) such that in the braced state of the slide closure (10) they can be released from the housing part (1) in almost every position of the slider unit (2). In the event of a breakdown opening of the latter is thus made possible without the holding means and/or other parts having to be destroyed.
Type:
Application
Filed:
November 27, 2015
Publication date:
January 11, 2018
Applicant:
Refractory Intellectual Property GmbH & Co. KG
Abstract: Refractory ceramic gas purging element, comprising: a refractory ceramic body, a chamber 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, a gas feeding line enters into said chamber, at a distance to said refractory ceramic body, at a section towards the refractory ceramic body the chamber is at least partially permeable to gas, the chamber comprises at least one plate, which is freely moveable in an axial direction of the gas purging element between a first end position and a second end position, the plate is dimensioned, shaped and placed in the chamber such that a gas flow from the gas feeding line through said chamber up to the first end is even secured when the plate is in its second end position.
Type:
Grant
Filed:
March 2, 2015
Date of Patent:
January 9, 2018
Assignee:
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:
Grant
Filed:
January 20, 2015
Date of Patent:
December 12, 2017
Assignee:
REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG
Inventors:
Ulrich Nebe, Roland Nilica, Barbara Zluc