Primetals Technologies Austria Gmbh

Siemens Vai Metals Technologies Gmbh

Deutsche Voest-alpine Industrieanlagenbau Gmbh

Siemens Aktiengesellschaft

Georg Aichinger

Johann Wurm

Kurt Wieder

Martin Schmidt

Robert Millner

Johannes Leopold Schenk

Jan-Friedemann Plaul

Thomas Eder

Franz Berner

Norbert Rein

Bogdan Vuletic

Hado Heckmann

Stefan Lechner

Andreas Scherney

Marinko Lekic-Ninic

Stephan Hattinger

Thomas Söntgen

Heinz W Engl

Ernst Oberndorfer

Reinhard Pum

Hermann Druckenthaner

Josef Ziegler

Herbert Lassnig

Gerald G&ouml;kler

Andrea Schatz

Helmut Zeisel

Johann Reidetschlaeger

Harald Bauernfeind

Michaela Böberl

Christoph Aichinger

Karl-Heinz Beham

Wolfgang Sterrer

Daelyul Kwon

Gi Woong Kwon

Stefan Hötzinger

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 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

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

The invention relates to a method and a device for the coarse separation of solid particles from solid-laden gases. The invention further relates to a method for treating particulate feed materials by means of treatment gases in a reactor, particularly in a fluidization zone at an increased temperature. Due to a blind hole-like line extension, it is possible to separate solid particles from a solid-laden gas.

Method and device for coarse separation of solid particles from solid-laden gases

A description is given of a method of optimizing the design and operation of a reduction process for iron-containing charge materials ( ), preferably in lump form, in a reduction shaft ( ) to which reduction gas ( ) is fed, for example from a fusion gasifier ( ), with a reduced product ( ), for example iron sponge, being taken from the reduction shaft ( ) for the production of liquid pig iron or liquid primary steel products, in which method the reduction process is described by means of a mathematical-physical-chemical process model, the reduction shaft ( ) is modelled multi-dimensionally, in particular three-dimensionally, and the process model is numerically evaluated and the results of the evaluation, obtained as multi-dimensional, in particular spatial, distributions of physical or chemical variables, are taken into account for the reduction process. This allows the reduction process to be quantitatively assessed in the entire reduction shaft and, as a result, the reduction process can be optimized.

Method for optimizing the layout and operation of a reduction method

The invention relates to a shaft furnace (,), in particular a direct-reduction shaft furnace, having a bed (,) of lumpy material, in particular lumpy material containing iron oxide and/or iron sponge, having worm conveyors (,) which penetrate through the shell of the shaft furnace for discharging the lumpy material from the shaft furnace (,), which conveyors are arranged above the base area of the shaft furnace (,) and are mounted in the shell of the shaft furnace.

Withdrawal device for a shaft furnace

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Asten, Austria

Georg Aichinger