Device for the controlled cooling of hot-briquetted directly...

C - Chemistry – Metallurgy – 21 – B

Patent

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Details

C21B 13/00 (2006.01) B65G 17/18 (2006.01) B65G 49/00 (2006.01) C22B 1/24 (2006.01) C22B 1/248 (2006.01) C22B 1/26 (2006.01)

Patent

CA 2278620

In an arrangement for the controlled cooling of hot-briquetted direct-reduced sponge iron in the form of an apron conveyor consisting of individual plates and located in a tank, the individual plate is designed as a conveyer trough, wherein at least one sliding plate each is located on the two opposed longitudinal outsides and the conveyor troughs are movably supported by means of the sliding plates on slideways and connected by means of at least one chain. The invention allows to separate the drive and the bearing as the conveyor troughs are supported by means of sliding plates and the drive acts directly on the conveyor trough by means of at least one chain. As the translation elements are designed as sliding plates and slideways, the surface pressure is reduced to less than a hundredth compared to wheels running on rails and the wear of the translation elements is thus reduced.

L'invention concerne un dispositif permettant de contrôler le refroidissement de fer spongieux aggloméré à chaud et réduit directement, qui se présente sous forme de convoyeur à tabliers situé dans un réservoir à liquides et composé de plaques individuelles. La plaque individuelle se présente sous forme de cuve convoyeuse (4) et sur chacun des deux grands côtés extérieurs opposés, il est prévu au moins une plaque coulissante (5 et 6). Les cuves convoyeuses (4) sont montées coulissantes sur des glissières (7) à l'aide de plaques coulissantes (5 et 6) et les cuves convoyeuses (4) communiquent avec au moins une chaîne (9). L'invention permet de parvenir à une séparation du mécanisme d'entraînement et du système de support, du fait que les cuves convoyeuses (4) sont soutenues à l'aide de plaques coulissantes (5, 6) et que le mécanisme d'entraînement sous forme d'au moins une chaîne (9) agit directement sur la cuve convoyeuse (4). La structure des éléments de translation qui se présentent sous forme de plaques coulissantes (5, 6) et de glissières (7) permet de ramener la pression de surface à moins d'un centième, comparativement à des roues roulant sur des rails. Il en résulte une diminution de l'usure des éléments de translation.

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