B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 8/24 (2006.01) B01J 8/44 (2006.01) B08B 7/02 (2006.01) B08B 9/00 (2006.01) C21B 13/00 (2006.01)
Patent
CA 2472720
The invention relates to a distributor bottom (1), especially a nozzle distributor bottom, for the distribution of a gas charged with solid particles, preferably used in a fluidised bed unit, especially for the reduction of solid particles containing metal oxide. At least one moveable cleaning device is arranged on the distribution bottom, enabling the formation of deposits on the distributor bottom, especially on the nozzles of the distributor bottom to be reduced during operation of said distributor bottom, and enabling deposits already formed thereon to be at least partially removed. The cleaning device is provided with a means (3) for cleaning the distributor bottom by means of a directly mechanical, especially beating effect on the distributor bottom, especially the nozzles of a nozzle distributor bottom. The invention also relates to a method for reducing the formation of deposits and/or at least partial removal of deposits on a distributor bottom.
L'invention concerne un fond de distribution (1), notamment un fond de distribution ~ tuyres, servant ~ distribuer un gaz charg~ de particules solides, destin~ de pr~f~rence ~ Útre utilis~ dans une unit~ ~ lit fluidis~, notamment pour la r~duction de particules solides renfermant des oxydes m~talliques. Au moins une unit~ de nettoyage mobile plac~e au niveau du fond de distribution permet, pendant le fonctionnement de ce dernier, de r~duire la formation de d~pÙts sur le fond de distribution, notamment au niveau des tuyres d'un fond de distribution ~ tuyres, et/ou d'~liminer au moins partiellement les d~pÙts d~j~ form~s. A cet effet, l'unit~ de nettoyage pr~sente un moyen (3) servant ~ nettoyer le fond de distribution par un effet directement m~canique, notamment par un effet de percussion, exerc~ sur le fond de distribution, notamment sur les tuyres d'un fond de distribution ~ tuyres. L'invention concerne en outre un proc~d~ pour r~duire la formation de d~pÙts et/ou ~liminer au moins partiellement des d~pÙts form~s sur un fond de distribution.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Pohang Iron & Steel Co. Ltd.
Research Institute Of Industrial Science & Technology Incorporat
Voest-Alpine Industrieanlagenbau Gmbh & Co.
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