Device for dosed introduction of fine particle material into...

C - Chemistry – Metallurgy – 21 – B

Patent

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C21B 13/14 (2006.01) C21B 13/00 (2006.01)

Patent

CA 2268107

An arrangement (29) for the dosed introduction of fine-particulate material into a reactor vessel (10) comprises a primary fluidized bed sluice (31), into which a material supply means (9) enters from above and into which a gas duct feeding a fluidization gas (33) runs in the lower end region thereof and which includes an overflow tube (34) for conveying on the fine-particulate material. In order to allow a dosed introduction of fine-particulate material into the reactor vessel (10), a plurality of secondary fluidized bed sluices (36) are provided outside of the reactor vessel (10), whose overflow ducts (37) project into the interior of the reactor vessel (10).

Un dispositif (29) pour l'introduction dosée d'un matériau en fines particules dans un réacteur (10) présente un canal de transfert à lit fluidisé (31), dans lequel débouche, à partir du haut, un dispositif d'alimentation en matériau (9) et, dans sa zone inférieure, une conduite de gaz (33) pour l'introduction d'un gaz de fluidisation, cependant qu'il est prévu un trop-plein (34) pour l'écoulement ultérieur dudit matériau. En vue de permettre une introduction dosée du matériau en fines particules dans le réacteur (10), il est prévu une pluralité de canaux de transfert à lit fluidisé (35) à l'extérieur du réacteur (10), canaux dont les tubes de trop-plein (37) font saillie à l'intérieur du réacteur (10).

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