Arbed S.a.

Rheinische Braunkohlenwerke Ag

Arbed Acieries Reunies De Burbach-eich-dudelange S.a.

Raymond Limpach

Antoine Weiner

Lucien Lorang

Fernand Artois

Friedrich H Franke

Heinz G Daldrup

Gunther Nothhelfer

Dietrich Boecker

In a process for injecting a fine-grain carbon carrier including ash-bearing bituminous or hard coal into a blast furnace hearth, use is made of a mix of fine-grain bituminous coal and at least one other solid fine-grain ash-bearing carbon carrier. The composition of the mix is so selected that the degree of basicity of the overall resulting ash of the mixture is adapted to the degree of basicity of the furnace slag.

Process for injecting a reducing agent including ash-bearing bituminous

A mixture of fine-particle mineral coal and a fine-particle solid carrier of carbon is stored in a bulk store from which the mixture is withdrawn and continuously blown into a shaft furnace, e.g. a blast furnace. Sufficient carbon carrier is used to loosen the mixture and to prevent it from caking and sticking. A suitable carbon carrier is particulate compost obtained by rotting household refuse or sewage sludge.

Process for the continuous blowing of fine-particled reducing agents

In a process for injecting fine-grain brown coal or lignite into a blast furnace through tuyere arches thereof, the initial speed at which coal dust, after leaving the supply conduit, moves towards the center of the blast furnace hearth is substantially lower than the speed at which the hot blast is blown into the furnace.

Process for injecting brown coal into a blast furnace

Coal of a granulometry of 0.1 to 20 mm is injected into the blast-pipe manifold surrounding an iron-smelting blast furnace. The temperature of between 900.degree.C and 1300.degree.C in this manifold thermally disintegrates the coal by vaporizing volatile components such as water in the coal and reduces the coal to a mesh size of at most 1 mm. The fine particles of coal so produced are blown into the blast furnace through the tuyeres.

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Huncherange, Luxembourg

Raymond Limpach