Patents by Inventor Franz Hauzenberger
Franz Hauzenberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220074006Abstract: Process for the direct reduction of metal oxides (2) using a reduction gas, which is based on at least one precursor gas, wherein at least one precursor gas (15, 22) is based on reformer gas obtained by catalytic reforming of hydrocarbon-containing gas (4) in a reformer (3), and in the preparation of the reduction gas at least one precursor gas based on reformer gas is heated up by means of electrical energy.Type: ApplicationFiled: December 16, 2019Publication date: March 10, 2022Inventors: Franz HAUZENBERGER, Robert MILLNER, Hanspeter OFNER, Norbert REIN, Gerald ROSENFELLNER, Johann WURM
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Patent number: 9512496Abstract: A method for introducing fine particulate material (4) of ferruginous particles into a fluidized bed reduction unit (1) having a fluidized bed (24), wherein the temperature in the fluidized bed (24) is more than 300° C., and wherein the fine particulate material (4) is introduced directly into the fluidized bed (24) and/or into a free space (25) above the fluidized bed (24) by means of a burner (2). The method may be used for producing liquid pig iron (17) or liquid steel precursor products (18) by a smelting reduction process in a smelting reduction unit (22).Type: GrantFiled: April 4, 2013Date of Patent: December 6, 2016Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBHInventors: Franz Hauzenberger, Robert Millner, Jan-Friedemann Plaul, Norbert Rein
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Publication number: 20150135899Abstract: A method for introducing fine particulate material (4) of ferruginous particles into a fluidized bed reduction unit (1) having a fluidized bed (24), wherein the temperature in the fluidized bed (24) is more than 300° C., and wherein the fine particulate material (4) is introduced directly into the fluidized bed (24) and/or into a free space (25) above the fluidized bed (24) by means of a burner (2). The method may be used for producing liquid pig iron (17) or liquid steel precursor products (18) by a smelting reduction process in a smelting reduction unit (22).Type: ApplicationFiled: April 4, 2013Publication date: May 21, 2015Inventors: Franz Hauzenberger, Robert Millner, Jan-Friedemann Plaul, Norbert Rein
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Patent number: 8361189Abstract: The invention relates to an apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.Type: GrantFiled: July 6, 2012Date of Patent: January 29, 2013Assignee: Siemens Vai Metals Technologies GmbHInventors: Martin Schmidt, Johannes Schenk, Franz Hauzenberger, Josef Stockinger, Johann Wurm
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Publication number: 20120313300Abstract: The invention relates to an apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.Type: ApplicationFiled: July 6, 2012Publication date: December 13, 2012Inventors: Martin Schmidt, Johannes Schenk, Franz Hauzenberger, Josef Stockinger, Johann Wurm
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Patent number: 8317898Abstract: In a method for the production of molten metal, oxygen, a reducing agent and iron reduced in a reduction reactor are introduced into a melt gasifier, the reducing agent is gasified with oxygen and the reduced iron is melted by the heat which occurs, the cupola gas being used as at least a fraction of the reduction gas. Reacted top gas is drawn off from the reduction reactor. For increased efficiency at least part of the heat energy of the top gas and/or of the fraction of the reduction gas which is provided for use as cooling gas and as excess gas to be utilized for the indirect heating of at least one further gas used in the method.Type: GrantFiled: October 1, 2007Date of Patent: November 27, 2012Assignee: Siemens Vai Metals Technologies GmbHInventors: Franz Hauzenberger, Robert Millner, Norbert Rein, Johannes Schenk, Martin Schmidt, Bogdan Vuletic, Kurt Wieder, Johann Wurm
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Patent number: 8236090Abstract: The invention relates to a process and an associated apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.Type: GrantFiled: December 6, 2005Date of Patent: August 7, 2012Assignee: Siemens Vai Metals Technologies GmbHInventors: Martin Schmidt, Johannes Schenk, Franz Hauzenberger, Josef Stockinger, Johann Wurm
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Patent number: 8221674Abstract: A distributor bottom, particularly a nozzle-type distributor bottom, for steadily introducing process gas, especially process gas loaded with solid particles, into a process chamber, optionally to create a fluidized bed. The process chamber is disposed above the distributor bottom and is formed by walls of a reactor used for metallurgically, particularly thermally, treating feedstock. The distributor bottom is provided with a plurality of holes. Holes are arranged near the walls to prevent substances from attaching to the reactor walls. Special arrangements relate to nozzles and ducts.Type: GrantFiled: December 20, 2006Date of Patent: July 17, 2012Assignee: Siemens Vai Metals Technologies GmbHInventors: Franz Hauzenberger, Karl Zehetbauer, Jun Hyuk Lee, Myoung Kyun Shin, Won Namkung, Minyoung Cho, Sun-Kwang Jeong, Nag Joon Choi, Hang Goo Kim
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Publication number: 20100043599Abstract: In a method for the production of molten metal, oxygen, a reducing agent and iron reduced in a reduction reactor are introduced into a melt gasifier, the reducing agent is gasified with oxygen and reduced iron is melted by means of the heat which occurs, the cupola gas being used as at least a fraction of the reduction gas. Reacted top gas is drawn off from the reduction reactor. For increased efficiency in terms of energy and raw materials, there is in this case provision for at least part of the heat energy of the top gas and/or of the fraction of the reduction gas which is provided for use as cooling gas and as excess gas to be utilized for the indirect heating of at least one further gas used in the method. For this purpose, at least one heat exchanger in a line for top gas and/or the fraction of the reduction gas which is provided for use as cooling gas and as excess gas is provided, at least one further gas used in the method flowing through said heat exchanger.Type: ApplicationFiled: October 1, 2007Publication date: February 25, 2010Inventors: Franz Hauzenberger, Robert Millner, Norbert Rein, Johannes Leopold Schenk, Martin Schmidt, Bogdan Vuletic, Kurt Wieder, Johann Wurm
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Publication number: 20100024599Abstract: A method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier. The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. Cupola gas from the melter gasifier is used at least as a portion of the reduction gas, and reacted top gas is withdrawn from the reduction reactor. The aim of the invention is to increase energy efficiency and raw material efficiency as well as productivity while at the same time obtaining metallurgically improved properties of the product. For this purpose, at least a portion of the top gas is branched off from the line for the withdrawal of the top gas from the reduction reactor and is returned via at least one return line leading to the melter gasifier and is introduced into the melter gasifier.Type: ApplicationFiled: October 1, 2007Publication date: February 4, 2010Inventors: Franz Hauzenberger, Robert Millner, Norbert Rein, Johannes Leopold Schenk, Martin Schmidt, Bogdan Vuletic, Kurt Wieder, Johann Wurm
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Patent number: 7588625Abstract: The invention relates to an apparatus and method for manufacturing molten irons. The method for manufacturing molten irons includes providing a mixture containing iron by drying and mixing iron ores and additives, passing the mixture containing iron through one or more successively-connected fluidized beds to convert the mixture into a reducing material that is reduced and calcined, forming a coal packed bed, which is a heat source in which the reducing material has been melted, charging the reducing material to the coal packed bed and supplying oxygen to the coal packed bed to manufacture molten irons, and supplying reducing gas exhausted from the coal packed bed to the fluidized bed. In the providing a mixture containing iron, exhaust gas exhausted from the fluidized bed is branched to dry at least one of the iron ores and the additives. The apparatus for manufacturing molten irons uses this method for manufacturing molten irons.Type: GrantFiled: December 23, 2003Date of Patent: September 15, 2009Assignees: Posco, Research Institute of Industrial Science & Technology, Voest-Alpine Industrieanlagenbau GmbH & Co.Inventors: Kung-Won Nam, Min-Young Cho, Young-Chae Jung, Young-Jae Jang, Franz Hauzenberger
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Publication number: 20090039573Abstract: A distributor bottom, particularly a nozzle-type distributor bottom, for steadily introducing process gas, especially process gas loaded with solid particles, into a process chamber, optionally to create a fluidized bed. The process chamber is disposed above the distributor bottom and is formed by walls of a reactor used for metallurgically, particularly thermally, treating feedstock. The distributor bottom is provided with a plurality of holes. Holes are arranged near the walls to prevent substances from attaching to the reactor walls. Special arrangements relate to nozzles and ducts.Type: ApplicationFiled: December 20, 2006Publication date: February 12, 2009Inventors: Franz Hauzenberger, Karl Zehetbauer, Jun Hyuk Lee, Myoung Kyun Shin, Won Namkung, Minyoung Cho, Sun-Kwang Jeong, Nag Joon Choi, Hang Goo Kim
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Publication number: 20080047397Abstract: The invention relates to a process and an associated apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form.Type: ApplicationFiled: December 6, 2005Publication date: February 28, 2008Inventors: Martin Schmidt, Johannes Schenk, Franz Hauzenberger, Josef Stockinger, Johann Wurm
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Patent number: 7225997Abstract: A nozzle distributor base for distributing a gas which is laden with fine solids particles, preferably for use in a fluidized-bed unit, in particular for the reduction of metal oxide-containing solids particles. At least one movable cleaning device on the distributor base reduces the formation of deposits on the distributor base or the nozzles thereof or at least partially removes deposits which have already formed. Elements in the distributor base, like chains, ropes or movable rods, clean the distributor base by direct mechanical striking action on the distributor base and/or the nozzles of the nozzle distributor base. A method for reducing the formation of deposits and/or for at least partially removing deposits on a distributor base uses the striking action.Type: GrantFiled: February 10, 2003Date of Patent: June 5, 2007Assignees: Voest-Alpine Industrieanlagenbau GmbH & Co., Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Incorporated FoundationInventor: Franz Hauzenberger
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Publication number: 20060119022Abstract: The invention relates to an apparatus and method for manufacturing molten irons. The method for manufacturing molten irons includes providing a mixture containing iron by drying and mixing iron ores and additives, passing the mixture containing iron through one or more successively-connected fluidized beds to convert the mixture into a reducing material that is reduced and calcined, forming a coal packed bed, which is a heat source in which the reducing material has been melted, charging the reducing material to the coal packed bed and supplying oxygen to the coal packed bed to manufacture molten irons, and supplying reducing gas exhausted from the coal packed bed to the fluidized bed. In the providing a mixture containing iron, exhaust gas exhausted from the fluidized bed is branched to dry at least one of the iron ores and the additives. The apparatus for manufacturing molten irons uses this method for manufacturing molten irons.Type: ApplicationFiled: December 23, 2003Publication date: June 8, 2006Applicant: PoscoInventors: Kung-Won Nam, Min-Young Cho, Young-Chae Jung, Young-Jae Jang, Franz Hauzenberger
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Patent number: 6960238Abstract: In a process for the gas reduction of particulate oxide-containing ores, in particular iron-oxide-containing material, in the fluidized-bed process at a pressure of <5 bars, wherein the ore by aid of a reducing gas produced from coal is heated, optionally also pre-reduced, in a fluidized-bed reactor (1) designed as a pre-heating stage (5), subsequently is reduced to sponge iron in at least one fluidized-bed reactor (2, 3) designed as a reduction stage (7, 8), the reducing gas via a reducing-gas feed duct (12) or reducing-gas duct (13) being conducted from the reduction stage (7, 8) to the pre-heating stage (5) in the opposite direction of the material to be reduced and conducted from stage to stage, and being drawn off as an export gas after purification, heat is supplied to the reducing gas fed to the reduction stage (7, 8) and/or pre-heating stage (5), namely by combustion, together with oxygen and/or air, of a portion of the reducing gas provided for the gas reduction in the reduction stage (7, 8) and/oType: GrantFiled: June 27, 2001Date of Patent: November 1, 2005Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.Inventors: Leopold Werner Kepplinger, Franz Hauzenberger, Johannes Schenk, Sanghoon Joo
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Publication number: 20050089808Abstract: A nozzle distributor base for distributing a gas which is laden with fine solids particles, preferably for use in a fluidized-bed unit, in particular for the reduction of metal oxide-containing solids particles. At least one movable cleaning device on the distributor base reduces the formation of deposits on the distributor base or the nozzles thereof or at least partially removes deposits which have already formed. Elements in the distributor base, like chains, ropes or movable rods, clean the distributor base by direct mechanical striking action on the distributor base and/or the nozzles of the nozzle distributor base. A method for reducing the formation of deposits and/or for at least partially removing deposits on a distributor base uses the striking action.Type: ApplicationFiled: February 10, 2003Publication date: April 28, 2005Inventor: Franz Hauzenberger
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Publication number: 20030159541Abstract: In a process for the gas reduction of particulate oxide-containing ores, in particular iron-oxide-containing material, in the fluidized-bed process at a pressure of <5 bars, wherein the ore by aid of a reducing gas produced from coal is heated, optionally also pre-reduced, in a fluidized-bed reactor (1) designed as a pre-heating stage (5), subsequently is reduced to sponge iron in at least one fluidized-bed reactor (2, 3) designed as a reduction stage (7, 8), the reducing gas via a reducing-gas feed duct (12) or reducing-gas duct (13) being conducted from the reduction stage (7, 8) to the pre-heating stage (5) in the opposite direction of the material to be reduced and conducted from stage to stage, and being drawn off as an export gas after purification, heat is supplied to the reducing gas fed to the reduction stage (7, 8) and/or pre-heating stage (5), namely by combustion, together with oxygen and/or air, of a portion of the reducing gas provided for the gas reduction in the reduction stage (7, 8) and/oType: ApplicationFiled: March 4, 2003Publication date: August 28, 2003Inventors: Leopold Werner Kepplinger, Franz Hauzenberger, Johannes Schenk, Sanghoon Joo
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Patent number: 6273933Abstract: According to a process for injecting metal-oxide-containing fine particles into a reducing gas, a central material stream formed by the fine particles and a carrier gas is introduced into the reducing gas and at least one gas stream formed by a secondary gas is directed against the material stream to ensure an optimum contact of the fine particles with the reducing gas, the gas stream atomizing the material stream and the fine particles being evenly distributed within the reducing gas.Type: GrantFiled: June 14, 1999Date of Patent: August 14, 2001Assignees: Voest - Alphini Industrieanlagenbau GmbH, Pohang Iron & Steel Co. LTD, Research Institute of Industrial Science & TechnologyInventors: Leopold Werner Kepplinger, Michael Nagl, Franz Hauzenberger, Bernhard Rinner, Felix Wallner, Peter Brandl, Udo Gennari, Johannes Schenk
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Patent number: 6241801Abstract: In a method for treating particulate material in the fluidized bed method, the particulate material is maintained in a fluidized bed by a treating gas flowing from bottom to top and thereby is treated. To minimize the consumption of treating gas and to reduce entrainment of fine particles by the treating gas, a particulate material having a wide grain distribution and a relatively high portion of fines is used for treatment and the treating gas in the fluidized bed is maintained at a superficial velocity less than the velocity required for fluidizing the largest particles of said particulate material.Type: GrantFiled: November 17, 1998Date of Patent: June 5, 2001Assignees: Voest-Alpine Industrieanlagenbau GmbH, Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Incorporated FoundationInventors: Werner Leopold Kepplinger, Felix Wallner, Johannes-Leopold Schenk, Franz Hauzenberger, Il-Ock Lee