Patents by Inventor Johannes Schenk
Johannes Schenk 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).
-
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
-
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
-
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
-
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
-
Patent number: 7597739Abstract: In a process for reducing iron-ore-containing particulate material in at least a two-stage process, reducing gas is conducted through at least two reaction zones consecutively arranged in series and formed by a moving particulate material and the particulate material passes through the reaction zones in reverse order to the reducing gas, with the particulate material being heated in the reaction zone arranged first for the particulate material and being reduced in the further reaction zone.Type: GrantFiled: June 20, 2007Date of Patent: October 6, 2009Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.Inventors: Leopold Werner Kepplinger, Johann Reidetschlager, Johannes Schenk, Siegfried Zeller, Konstantin Milionis, Hanspeter Ofner
-
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
-
Publication number: 20070245853Abstract: In a process for reducing iron-ore-containing particulate material in at least a two-stage process, reducing gas is conducted through at least two reaction zones consecutively arranged in series and formed by a moving particulate material and the particulate material passes through the reaction zones in reverse order to the reducing gas, with the particulate material being heated in the reaction zone arranged first for the particulate material and being reduced in the further reaction zone.Type: ApplicationFiled: June 20, 2007Publication date: October 25, 2007Inventors: Leopold Kepplinger, Johann Reidetschlager, Johannes Schenk, Siegfried Zeller, Konstantin Milionis, Hanspeter Ofner
-
Patent number: 7144447Abstract: A process and apparatus for reducing material in particle form in a fluidization zone and at elevated temperature, in particular for reducing fine ore, the particle material being held in the fluidization zone by a treatment gas which flows upward from below. Material in fine particle form is discharged from the fluidization zone with the treatment gas and is separated out of the treatment gas in a deposition zone. In the deposition zone, the stream of treatment gas and discharged material in fine particle form are fed into a separating device which removes the fine particle material from the treatment gas, the treatment gas is extracted from the separating device as off-gas, and the separated fine particle material is removed from the separating device. Coarse-grained material is then introduced into the deposition zone. This reduces the levels of caking and deposits of the fine particle material. A device for carrying out the process includes elements defining the zones.Type: GrantFiled: May 28, 2002Date of Patent: December 5, 2006Assignee: Voest-Alpine Industrieanlagenbau GmbH & Co.Inventors: Michael Nagl, Johannes Schenk, Albert Zschetzsche
-
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
-
Publication number: 20040237718Abstract: In a process for reducing iron-ore-containing particulate material in at least a two-stage process, reducing gas is conducted through at least two reaction zones consecutively arranged in series and formed by a moving particulate material and the particulate material passes through the reaction zones in reverse order to the reducing gas, with the particulate material being heated in the reaction zone arranged first for the particulate material and being reduced in the further reaction zone.Type: ApplicationFiled: March 29, 2004Publication date: December 2, 2004Applicant: VOEST-ALPINE Industrieanlagenbau GmbH & Co.Inventors: Leopold Werner Kepplinger, Johann Reidetschlager, Johannes Schenk, Siegfried Zeller, Konstantin Milionis, Hanspeter Ofner
-
Publication number: 20040231514Abstract: The invention relates to a process and to apparatus for treating, preferably for reducing, material in particle form in a fluidization zone and at elevated temperature, in particular for reducing fine ore, the particle material being held in the fluidization zone by a treatment gas which flows upward from below. Material in fine particle form is discharged from the fluidization zone with the treatment gas and is separated out of the treatment gas in a deposition zone. The following steps are carried out in the deposition zone: feeding the stream of treatment gas and discharged material in fine particle form to a separating device, separating the fine particle material from the treatment gas, extracting the treatment gas from the separating device as off-gas, and removing the separated fine particle material from the separating device. Coarse-grained material is introduced into the deposition zone, reducing the levels of caking and deposits of the fine particle material.Type: ApplicationFiled: February 17, 2004Publication date: November 25, 2004Inventors: Michael Nagl, Johannes Schenk, Albert Zschetzsche
-
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
-
Patent number: 6569377Abstract: In a process for the direct reduction of particulate iron-oxide-containing material by fluidization, a synthesis gas is introduced as a reducing gas into several fluidized bed zones consecutively arranged in series. The reducing gas is conducted from one fluidized bed zone to another fluidized bed zone in counterflow to a flow of particulate iron-oxide containing material through the fluidized bed zones. In order to reduce operating costs and, in particular, the energy demand, various process parameters are varied according to the temperature of the iron-oxide-containing material in the first fluidized bed zone being adjusted to be below 400° C. (and, preferably, below 350° C.), above 580° C. (and preferably about 650° C.), or to a temperature within the range of from 400° C. to 580° C. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is maintained to be below 400° C.Type: GrantFiled: January 15, 2002Date of Patent: May 27, 2003Assignee: Voest-Alpine Industrieanlagenbau GmbHInventors: Siegfried Zeller, Konstantin Milionis, Johann Reidetschläger, Leopold Werner Kepplinger, Johann Zirngast, Johannes Schenk, Roy Hubert Whipp, Jr.
-
Publication number: 20020117024Abstract: In a process for the direct reduction of particulate iron-oxide-containing material by fluidization, a synthesis as is introduced as a reducing gas into several fluidized bed zones consecutively arranged in series for the reducing gas and the reducing as is conducted from one fluidized bed zone to another fluidized bed zone in counterflow to the particulate iron-oxide containing material.Type: ApplicationFiled: January 15, 2002Publication date: August 29, 2002Applicant: Voest-Alpine Industrieanlagenbau GmbHInventors: Siegfried Zeller, Konstantin Millionis, Johann Reidetschlager, Leopold Werner Kepplinger, Johann Zirngast, Johannes Schenk, Roy Hubert Whipp
-
Patent number: 6416566Abstract: In the process for the production of liquid pig iron 943) or liquid steel pre-products from charging substances comprising iron ore (5) and fluxes and at least partially containing a portion of fines, the iron ore is directly reduced to sponge iron in at least two reduction stages (1, 2) by the fluidized bed method, the sponge iron is melted in a melt-down gasifying zone (39) under the supply of carbon carriers and an oxygen-containing gas, and a CO- and H2-containing reducing gas is produced which is injected into reduction zones of the reduction stages (1, 2), is reacted there, is withdrawn as a top gas and optionally is supplied to a consumer.Type: GrantFiled: December 28, 1998Date of Patent: July 9, 2002Assignees: Voest-Alpine Industrieanlagenbau GmbH, Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Incorporated FoundationInventors: Werner Leopold Kepplinger, Felix Wallner, Johannes Schenk, Il-Ock Lee, Yong-Ha Kim, Moon Duk Park
-
Patent number: 6336954Abstract: A process for the direct reduction of particulate iron-oxide-containing material by fluidization. A synthesis gas is introduced as a reducing gas into several fluidized bed zones consecutively arranged in series for the reducing gas. The reducing gas is conducted from one fluidized bed zone to another fluidized bed zone in counterflow to the particulate iron-oxide containing material. In order to reduce operating costs and, in particular, the energy demand, the temperature of the iron-oxide-containing material is adjusted in the first fluidized bed zone to be either below 400° C. (and, preferably, below 350° C.), or above 580° C. (and preferably about 650° C.), or to a temperature ranging from 400° C. to 580° C. If the temperature of the iron-oxide-containing material in the first fluidized bed zone is adjusted to be below 400° C., the temperature range in the following fluidized bed zone between 400° C. and 580° C.Type: GrantFiled: February 17, 2000Date of Patent: January 8, 2002Assignee: Voest-Alpine Industrieanlagenbau GmbHInventors: Siegfried Zeller, Konstantin Milionis, Johann Reidetschläger, Leopold Werner Kepplinger, Johann Zirngast, Johannes Schenk, Roy Hubert Whipp, Jr.
-
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
-
Patent number: 6264722Abstract: In a process for producing molten pig iron or steel preproducts from fine-particulate iron containing material in a meltdown gasifying zone of a melter gasifier, under the supply of carbon-containing material and oxygen-containing gas at the simultaneous formation of a reducing gas in a bed formed of solid carbon carriers, the iron-containing material is melted when passing the bed.Type: GrantFiled: January 20, 1998Date of Patent: July 24, 2001Assignees: Voest-Alpine, Pohang Iron & Steel Co. Ltd.Inventors: Werner Leopold Kepplinger, Felix Wallner, Johannes Schenk
-
Patent number: 6254663Abstract: In the process for the production of liquid pig iron 943) or liquid steel pre-products from charging substances comprising iron ore (5) and fluxes and at least partially containing a portion of fines, the iron ore is directly reduced to sponge iron in at least two reduction stages (1, 2) by the fluidized bed method, the sponge iron is melted in a melt-down gasifying zone (39) under the supply of carbon carriers and an oxygen-containing gas, and a CO- and H2-containing reducing gas is produced which is injected into reduction zones of the reduction stages (1, 2), is reacted there, is withdrawn as a top gas and optionally is supplied to a consumer.Type: GrantFiled: December 28, 1998Date of Patent: July 3, 2001Assignees: Voest-Alpine Industrieanlagenbau GmbH, Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Incorporated FoundationInventors: Werner Leopold Kepplinger, Felix Wallner, Johannes Schenk, Il-Ock Lee, Yong-Ha Kim, Moon Duk Park
-
Patent number: 6220790Abstract: A process for continuous conveying of a fine-grained and/or pulverized solid to two or more target points by a conveying medium, e.g. gas. The solid is charged into a distribution vessel and from there to several target points by respective supply lines each at a desired target flow rate intended for target point. The target flow rate for each target point is divided into at least two partial target flow rates from the distribution vessel via separate partial supply lines. The partial target flow rates are reunited at the respective target points at the latest. To adjust the target flow rate at a target point at a specific level, individual partial supply lines leading to this target point are alternatively kept shut-off or open.Type: GrantFiled: April 17, 1998Date of Patent: April 24, 2001Assignee: Voest Alpine IndustrieanlagenbauInventors: Johannes Schenk, Michael Nagl, Walter-Rainer Kastner