Patents by Inventor Lothar Formanek
Lothar Formanek 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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Patent number: 10890379Abstract: A device for measuring the temperature in a rotary kiln through which solid material passes being heated to elevated temperatures. The device features a drive as well as an elongated hollow body with means to fix a thermocouple, whereby the drive and the elongated hollow body are mounted such that they rotate jointly with the rotary kiln. The drive can move the elongated hollow body together with thermocouple through an opening in and out of the rotary kiln interior for measuring the temperature inside the rotary kiln during operation.Type: GrantFiled: February 24, 2020Date of Patent: January 12, 2021Assignee: OUTOTEC (FINLAND) OYInventors: Nils Oertel, Eugen Schmidt, Andrej Schulakow-Klass, Lothar Formanek
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Publication number: 20200191483Abstract: A device for measuring the temperature in a rotary kiln through which solid material passes being heated to elevated temperatures. The device features a drive as well as an elongated hollow body with means to fix a thermocouple, whereby the drive and the elongated hollow body are mounted such that they rotate jointly with the rotary kiln. The drive can move the elongated hollow body together with thermocouple through an opening in and out of the rotary kiln interior for measuring the temperature inside the rotary kiln during operation.Type: ApplicationFiled: February 24, 2020Publication date: June 18, 2020Inventors: Nils Oertel, Eugen Schmidt, Andrej Schulakow-Klass, Lothar Formanek
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Patent number: 8021601Abstract: A plant for the heat treatment of solids containing titanium includes a fluidized bed reactor. The reactor includes at least one gas supply tube being at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is located, and a mixing chamber being located above the upper orifice region of the gas supply tube. The gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed into the mixing chamber when passing through the upper orifice region of the gas supply system. The plant further includes a solids separator downstream of the reactor. The solids separator includes a solids conduit leading to the annular fluidized bed of the reactor.Type: GrantFiled: December 1, 2009Date of Patent: September 20, 2011Assignee: Outotec OyjInventors: Dirk Nuber, Michael Stroeder, Werner Stockhausen, Lothar Formanek, Martin Hirsch, Ali-Naghi Beyzavi
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Publication number: 20100074805Abstract: A plant for the heat treatment of solids containing titanium includes a fluidized bed reactor. The reactor includes at least one gas supply tube being at least partly surrounded by an annular chamber in which a stationary annular fluidized bed is located, and a mixing chamber being located above the upper orifice region of the gas supply tube. The gas flowing through the gas supply tube entrains solids from the stationary annular fluidized bed into the mixing chamber when passing through the upper orifice region of the gas supply system. The plant further includes a solids separator downstream of the reactor. The solids separator includes a solids conduit leading to the annular fluidized bed of the reactor.Type: ApplicationFiled: December 1, 2009Publication date: March 25, 2010Applicant: OUTOTEC OYJInventors: Dirk Nuber, Michael Stroeder, Werner Stockhausen, Ali-Naghi Beyzavi, Lothar Formanek, Martin Hirsch
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Patent number: 7651547Abstract: The present invention relates to a method and a plant for the heat treatment of solids containing titanium and possibly further metal oxides, in which fine-grained solids are heated to a temperature of 700 to 950° C. in a fluidized bed reactor (1). To improve the energy utilization, it is proposed to introduce a first gas or gas mixture from below through a gas supply tube (3) into a mixing chamber (7) of the reactor (1), the gas supply tube (3) being at least partly surrounded by a stationary annular fluidized bed (10) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture as well as of the fluidizing gas for the annular fluidized bed (10) are adjusted such that the particle Froude numbers in the gas supply tube (3) are between 1 and 100, in the annular fluidized bed (10) between 0.02 and 2 and in the mixing chamber (7) between 0.3 and 30.Type: GrantFiled: December 10, 2003Date of Patent: January 26, 2010Assignee: Outotec OyjInventors: Dirk Nuber, Michael Ströder, Werner Stockhausen, Ali-Naghi Beyzavi, Lothar Formanek, Martin Hirsch
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Publication number: 20060162500Abstract: The present invention relates to a method and a plant for the heat treatment of solids containing titanium and possibly further metal oxides, in which fine-grained solids are heated to a temperature of 700 to 950° C. in a fluidized bed reactor (1). To improve the energy utilization, it is proposed to introduce a first gas or gas mixture from below through a gas supply tube (3) into a mixing chamber (7) of the reactor (1), the gas supply tube (3) being at least partly surrounded by a stationary annular fluidized bed (10) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture as well as of the fluidizing gas for the annular fluidized bed (10) are adjusted such that the particle Froude numbers in the gas supply tube (3) are between 1 and 100, in the annular fluidized bed (10) between 0.02 and 2 and in the mixing chamber (7) between 0.3 and 30.Type: ApplicationFiled: December 10, 2003Publication date: July 27, 2006Inventors: Dirk Nuber, Michael Stroder, Werner Stockhausen, Ali-Naghi Beyzavi, Lothar Formanek, Martin Hirsch
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Patent number: 6666629Abstract: A process of continuously conveying granular solids from a first zone with a pressure of 4 to 16 bar through a descending line and via an ascending line to a second zone with a pressure which is lower than in the first zone by 3 to 15 bar, by means of a gaseous medium. To ensure that the pressure between two regions can be reduced at low cost and with little maintenance effort when continuously conveying granular solids, a gaseous medium is injected into a tube through an upwardly directed nozzle at the point where the granular solids are conveyed through a descending line into an ascending line.Type: GrantFiled: April 2, 2002Date of Patent: December 23, 2003Assignee: Outokumpu OyjInventors: Martin Hirsch, Stuart Sneyd, Lothar Formanek
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Publication number: 20020146291Abstract: A process of continuously conveying granular solids from a first zone with a pressure of 4 to 16 bar through a descending line and via an ascending line to a second zone with a pressure which is lower than in the first zone by 3 to 15 bar, by means of a gaseous medium. To ensure that the pressure between two regions can be reduced at low cost and with little maintenance effort when continuously conveying granular solids, a gaseous medium is injected into a tube through an upwardly directed nozzle at the point where the granular solids are conveyed through a descending line into an ascending line.Type: ApplicationFiled: April 2, 2002Publication date: October 10, 2002Applicant: OUTOKUMPU OyjInventors: Martin Hirsch, Stuart Sneyd, Lothar Formanek
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Patent number: 4551172Abstract: Sponge iron is produced by a direct reduction with solid carbonaceous reducing agents. In order to permit a melting of the sponge iron, particularly of that part thereof which is inferior in metallurgical properties, in a process which is as simple and economical as possible, the exhaust gas from the direct reduction process is used to produce electrical energy, which is supplied to the electric reducing furnace, and sponge iron at a rate corresponding to the electrical energy that is produced is charged to the electrical reducing furnace and comprises at least part of the sponge iron which is inferior in metallurgical properties.Type: GrantFiled: August 8, 1984Date of Patent: November 5, 1985Assignees: Metallgesellschaft Aktiengesellschaft, Mannesmann AktiengesellschaftInventors: Lothar Formanek, Martin Hirsch, Harry Serbent, Wolfram Schnabel, Klaus-Dietrich Fritzsche, Heribert Koenig, Gero Rath
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Patent number: 4490168Abstract: Sponge iron produced by direct reduction is melted in an electric arc furnace, in which a pool of liquid metal is maintained. To ensure that liquid carbon-containing iron for forming the pool is available in adequate quantities and that the process can be carried out with the highest possible economy, the sponge iron is reacted in an electric arc furnace on a bath of liquid carbon-containing iron (hot metal), which has been produced from sponge iron or from partly reduced ore in an electric reducing furnace, and in dependence on the electric load changes which are due to the operation of the electric arc furnace the operation of the electric reducing furnace is so controlled that a virtually constant load on the electric power supply system is maintained.Type: GrantFiled: January 11, 1984Date of Patent: December 25, 1984Assignees: Metallgesellschaft AG, Mannesmann AGInventors: Lothar Formanek, Martin Hirsch, Wolfram Schnabel, Harry Serbent, Klaus-Dietrich Fritzsche, Heribert Koenig, Detmar Arlt