Deutsche Voest-alpine Industrieanlagenbau Gmbh

Parviz Zahedi

Johann Wurm

Leopold Werner Kepplinger

Kurt Wieder

Josef Stockinger

Herbert Mizelli

G&uuml;nter Schrey

Günter Schrey

In a method for the production of liquid metal, in particular liquid pig iron () or liquid steel pre-products, from metal carriers, in particular partially reduced or reduced sponge iron (), in a melter gasifier () in which with supply of a carbon-containing material at least partially formed of fine coal () and coal dust () and with supply of oxygen or oxygen-containing gas the metal carriers are melted in a bed () of the carbon-containing material at the simultaneous formation of a reducing gas, optionally upon previous final reduction, fine coal () and coal dust () which are being charged, are mixed with bitumen () in the hot state, after undergoing a drying operation, and subsequently are cold-briquetted, and the briquettes () thus formed are charged to the melter gasifier () in the cold state and in the melter gasifier () are subjected to shock-heating.

Method and plant utilizing fine coal in a melter gasifier

Process and apparatus for producing liquid pig iron or primary steel products from iron-containing material in lump form in a fusion gasifier ( ), in which, with lump coal and oxygen-containing gas being fed in, and with simultaneous formation of a reduction gas, the iron-containing material is fused, lump coal being fed to the fusion gasifier ( ) from above and, together with the iron-containing material, forming a fixed bed ( ) in the fusion gasifier ( ) and thereby giving off its fraction of volatile hydrocarbons into the dome space ( ) located above the fixed bed ( ), and pulverized-fuel burners ( ) being directed obliquely from above towards the surface of the fixed bed ( ). The operation of the pulverized-fuel burners ( ) is in this case controlled in such a way that the combustion of the carbon fraction of the carbon carriers in fine particle form takes place in a proportion of at least 40% to form CO .

Method for producing liquid pig iron

In a method for the production of liquid metal, in particular liquid pig iron (,) or liquid steel pre-products, from metal carriers, in particular partially reduced or reduced sponge iron (,), in a melter gasifier (,) in which with supply of a carbon-containing material at least partially formed of fine coal (,) and coal dust (,) and with supply of oxygen or oxygen-containing gas the metal carriers are melted in a bed (,) of the carbon-containing material at the simultaneous formation of a reducing gas, optionally upon previous final reduction, fine coal (,) and coal dust (,) which are being charged, are mixed with bitumen (,) in the hot state, after undergoing a drying operation, and subsequently are cold-briquetted, and the briquettes (,) thus formed are charged to the melter gasifier (,) in the cold state and in the melter gasifier (,) are subjected to shock-heating.

Method and plant of utilizing fine coal in a melter gasifier

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Asten, Austria

Parviz Zahedi