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Voest-alpine Industrieanlagenbau Gmbh

Research Institute of Industrial Science & Technology

Pohang Iron & Steel Co. Ltd.

Udo Gennari

Felix Wallner

Werner Leopold Kepplinger

Leopold Werner Kepplinger

Johannes-Leopold Schenk

Johannes Leopold Schenk

Michael Nagl

Franz Hauzenberger

Peter Brandl

Il-Ock Lee

Yong-Ha Kim

Bernhard Rinner

Johannes-Leopold Schnek

Gyu-Dae Park

Plant for charging metal carriers which contain a portion of fines and are at least partially reduced to a melter gasifier in which a melt-down gasifying zone formed by a bed is maintained, the metal carriers and carbon carriers are fed into the melter gasifier above the level of the melt-down gasifying zone. The metal carriers descend to the melt-down gasifying zone and travel through the same forming a metal melt and producing a reducing gas by coal gasification. In order to prevent a partial discharge from the melter gasifier of the metal carriers, in particular of the fine particles thereof, when charging the same, feeding of the metal carriers into the interior of the melter gasifier is effected at a vertical distance below a dome ( ) terminating the melter gasifier toward the top, gravitationally and under the formation of a strand ( ), and the strand ( ) is surrounded by a gas jacket ( ) enclosing and accompanying the freely falling strand ( ) from its level of origin (at ) onwards over a section ( ) of the fall, and in this section ( ) the strand ( ) is supported against expansion by the gas jacket ( ).

Plant for charging metal carriers to melt-down gasifying zone

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.

Method for blowing fine particles containing metal oxide into a reducing gas

In a method of charging metal carriers which contain a portion of fines and are at least partially reduced to a melter gasifier in which a melt-down gasifying zone formed by a bed is maintained, the metal carriers and carbon carriers are fed into the melter gasifier above the level of the melt-down gasifying zone. The metal carriers descend to the melt-down gasifying zone and travel through the same forming a metal melt and producing a reducing gas by coal gasification. In order to prevent a partial discharge from the melter gasifier of the metal carriers, in particular of the fine particles thereof, when charging the same, feeding of the metal carriers into the interior of the melter gasifier is effected at a vertical distance below a dome (,) terminating the melter gasifier toward the top, gravitationally and under the formation of a strand (,), and the strand (,) is surrounded by a gas jacket (,) enclosing and accompanying the freely falling strand (,) from its level of origin (at,) onwards over a section (,) of the fall, and in this section (,) the stand (,) is supported against expansion by the gas jacket (,).

Method of charging metal carriers to a melt-down gasifying zone

An arrangement for the dosed introduction of fine-particulate material into a reactor vessel comprises a fluidized bed sluice, into which a material supply means enters from above and into which a gas duct feeding a fluidization gas runs in the lower end region thereof and which includes an overflow tube for conveying on the fine-particulate material. In order to introduce the fine-particulate material into the reactor vessel at specific zones, a plurality of independently connectable fluidized bed sluices are provided outside of the reactor vessel, the fluidized bed sluices having overflow tubes which project into the interior of the reactor vessel.

Arrangement for the dosed introduction of fine-particulate material into a reactor vessel

Process for producing sponge iron

Process for reducing ore fines and arrangement for carrying out the

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Linz, Austria

Udo Gennari