Siemens Vai Metals Technologies Gmbh

Voest-alpine Industrieanlagenbau Gmbh & Co.

Primetals Technologies Austria Gmbh

Deutsche Voest-alpine Industrieanlagenbau Gmbh

Other

Posco

Siemens Aktiengesellschaft

Vai Industries (uk) Limited

Johann Wurm

Kurt Wieder

Robert Millner

Leopold Werner Kepplinger

Johannes Leopold Schenk

Martin Schmidt

Georg Aichinger

Franz Berner

Norbert Rein

Jan-Friedemann Plaul

Franz Hauzenberger

Hado Heckmann

Herbert Mizelli

Josef Stockinger

Bogdan Vuletic

Thomas Eder

Hanspeter Ofner

Reinhard Pum

Walter Rainer Kastner

G&uuml;nther Brunnbauer

Mohamed Tarek El-Rayes

Reinhard Redl

Werner Leopold Kepplinger

Gerald Rosenfellner

Johannes-Leopold Schenk

Karl Zehetbauer

Stefan Lechner

Parviz Zahedi

Andreas Scherney

Marinko Lekic-Ninic

Herbert Schmid

Andreas Zobernig

Rainer Walter Kastner

Heinz W Engl

Brian James Kibble

Michaela Boeberl

Thomas Söntgen

Jeremy Fletcher

Harald Sprenger

Kurt Lukschander

Ulrike Schmidt

Bernhard Rummer

Josef Ziegler

Herbert Lassnig

Roland Eisl

Bernhard Hiebl

Alois Gstoettenmayr

Helmut Siegl

Chong Won Choi

Andrea Schatz

Gerald G&ouml;kler

Stephan Lackner

Thomas Bürgler

Sin-Myoung Kang

Harald Bauernfeind

Wilhelm Fingerhut

Rainer-Walter Kastner

Seok Min Yoon

Hermann Druckenthaner

Helmut Zeisel

Sang Hoon c/o Posco Joo

Gu c/o Posco Lee

Jin Tae c/o Posco Kim

Myoung Kyun c/o Posco Shin

Sang Hyun c/o Posco Kim

Wan Gi c/o Posco Kim

Hoo Geun c/o Posco Lee

Chang Oh Kang

Deuk Chae c/o Posco Kim

Brian Kibble

Edmund Fehringer

Markus Kastner

Thomas Wolfinger

Gi Woong Kwon

Daelyul Kwon

Wolfgang Sterrer

Karl-Heinz Beham

A method of direct reduction of metal oxides that includes catalytic reforming of hydrocarbonaceous gas in a reformer to obtain reformer gas, obtaining at least one precursor gas based on the reformer gas, preparing a reduction gas by heating the at least one precursor gas by means of electrical energy, at least a portion of the electrical energy being introduced by means of plasma.

Process and apparatus for direct reduction with electrically heated-up reduction gas

The invention relates to a method for the direct reduction of oxidic iron carrier particles to a reduction product in a fluidized bed through which a reduction gas containing 30-100 mol % hydrogen Hflows in crossflow. At least 90% by mass of oxidic iron carrier particles introduced into the fluidized bed have a particle size of less than or equal to 200 micrometers. The superficial velocity U of the reduction gas flowing through the fluidized bed is set between 0.05 m/s and 1 m/s such that, for the particle size d equal to dof the oxidic iron carrier particles introduced into the fluidized bed, it is above the theoretical suspension velocity Uand is less than or equal to U.

Method for direct reduction in a fluidized bed

A method and apparatus are disclosed for treating process water which is loaded with gaseous compounds and/or possibly with solids and comes from a wet-cleaning installation for cleaning process gas, e.g., from a melt-reduction subassembly or from a direct-reduction subassembly. Process water is introduced in a tank in a first process stage and degassed on the basis of reduced solubility of the dissolved compounds. The tank has, on its upper side, a gas-collecting chamber, in which the separated-off gases are collected and from which these are discharged. Likewise, the treated process water is discharged from the tank via a drainage means.

Method and apparatus for treating process water

A melter gasifier of a smelting reduction installation is charged by bringing together coal -containing material in lump form and iron carrier material (which may be hot) before and/or while they enter the melter gasifier. The ratio of the combined amounts of iron carrier material and coal-containing material in lump form is variable. The combined amounts of iron carrier material and coal-containing material in lump form are distributed over the cross section of the melter gasifier by a dynamic distributing device, and the ratio of the combined amounts of the iron carrier material and coal-containing material in lump form is set depending on the position of the dynamic distributing device.

Method and device for charging coal-containing material and iron carrier material

A melting reduction assembly () has a melting gasification zone, including a packed bed () formed by solid carbon carriers and ferrous input materials, the zone has a lower section for receiving liquid pig iron () or raw steel material and liquid slag (), a tap () for liquid slag and liquid pig iron. A plurality of oxygen nozzles () supplies oxygen. The nozzles are in at least two nozzle planes arranged spaced apart from each other and parallel in the vertical direction and horizontally distributed over the circumstances of the shell () of the melting reduction assembly () and arranged offset to each other in their respective nozzle planes.

Melting reduction assembly and method for operating a melting reduction assembly

A process and an apparatus for producing liquid pig iron or liquid primary steel products from charge materials formed by iron ores and additions. The charge materials are subjected to a further reduction in a reducing zone () and are then fed to a smelting zone or a smelting unit (), in particular a fusion gasifier, for smelting with the addition of carbon carriers and oxygen-containing gas to form a fixed bed. A CO- and H-containing reduction gas is formed, which gas is introduced into the reducing zone converted there and drawn off as top gas. The hot top gas, laden with solid matter, after separation of the solids, is subjected at least to a dry coarse separation and at least parts of the hot solids segregated by the separation are returned into the smelting zone or the smelting unit () or the reducing unit (). In addition, the top gas is treated in a further fine separation stage (A).

Process and apparatus for producing liquid pig iron or liquid primary steel products

A method for producing moldings, in particular briquettes, from fine-grained to medium-grained mixed material using organic binders. In a first stage, the mixed material is heated to a temperature necessary for the molding operation. In a second, atmospherically separate stage, mixing of the mixed material with binder is performed, as well as downstream steps of the process. The method allows hazardous emissions to be avoided.

Method for producing moldings

A method and device are disclosed for automatically evaluating a delivery system in respect of the energy efficiency and emissions efficiency thereof. The method may include: determining a service level for the delivery system according to an energy intensity and an evaluation relevance of the particular delivery system, detecting energy data and emissions data of the delivery system corresponding to the determined service level of the delivery system, and calculating at least one indicator based on the detected energy data and emissions data and/or based on data for the energy management and environmental management of the delivery system for evaluating the delivery system with respect to the energy efficiency and emissions efficiency thereof.

Method for increasing the penetration depth of an oxygen stream

An injector insert pipe is arranged in the gas channel of a nozzle for injecting oxygen-containing gas into a pig iron production unit, wherein an interspace which surrounds the pipe is present over the entire pipe length between the wall of the gas channel and the pipe outer wall. The pipe extends at least as far as the nozzle end face which contains the mouth of the gas channel. The pipe space is connected to an oxygen-containing gas feed line, and the interspace is connected to a protective gas supply line. In a process, oxygen-containing gas is fed into the pipe space, which after it has flowed through the pipe, enters the production unit at an entry velocity, and the interspace is simultaneously flowed through by a gas which exits into the production unit at an exit velocity, wherein the entry velocity is greater than the exit velocity.

Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe

Process gas purification device () for a melt reduction system () comprising at least one reduction reactor () and a melting gasification reactor (), a first line system () for discharging a furnace gas () from the reduction reactor () and a second line system () for discharging a generator gas () from the melting gasification reactor () wherein both line systems () lead to a respective wet scrubbing system (). The furnace gas or generator gas flow can be throttled preferably by way of a control element () that varies a control gap () and the scrubber or cooling liquid () can be collected and drained. The first wet scrubber system () of the first line system () for routing the furnace gas () and the second Venturi scrubber system () of the second line system () for routing the generator gas () both discharge into a common mist elimination device ().

Process gas purification device for a melt reduction system for extracting pig iron

To distribute charging material evenly in an enclosure such as a furnace or reactor to ensure its best operation, a charging material distribution inside the enclosureof the furnace is used. It has a movable charging devicein the form of a spout through which the charging material is fed into the enclosure. The distribution device is small in size and light in weight. It has a moveable charging devicein the form of a spout which is suspended on a gimbal suspensionon a fixed charging device, which is in the form of a chuteinside the enclosure.

Device for distributing material into an enclosure

A process for energy- and emission-optimized iron production and an installation for carrying out the process. A first partial amount of a generator gas produced in a melter gasifier is used as a first reducing gas in a first reduction zone. A second partial amount is fed to at least one further reduction zone as a second reducing gas. In addition, after COscrubbing, a partial amount of top gas removed from the first reduction zone is admixed with the generator gas after the latter leaves the melter gasifier, for cooling the generator gas.

[object Object]

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.

Process and apparatus for producing metals and/or primary metal products

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.

Method and device for producing molten material

A method for the melting of pig iron in a blast furnace (1) operated with oxygen or in a melt-reduction plant, with a reduction region. Purified crude gas is discharged from the reduction region and is recirculated into the reduction region with the addition of hydrocarbons. The purified crude gas is mixed with hydrocarbons and is also blended with a reduction gas which has a temperature of above 1000&#xb0; C. and which is generated by partial oxidation of hydrocarbons by means of oxygen gas having an oxygen content of above 90% by volume, in order to form a recirculation gas with a temperature of above 800&#xb0; C. The recirculation gas is recirculated into the reduction region according to an auto-reforming process.

Method for the melting of pig iron with the recirculation of blast furnace gas and with the addition of hydrocarbons

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Bad Zell, Austria

Johann Wurm