B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 53/16 (2006.01) B65G 53/20 (2006.01) B65G 53/52 (2006.01)
Patent
CA 2334092
The invention concerns a method for conveying on a high density bed powder material enabling to avoid obstacle, by inserting between two horizontal conveyors, one upstream (T1) and the other downstream (T2), a device for avoiding (10; 20; 30) the obstacle, comprising three casings: at the device intake, an upstream casing (S1) comprising a lower duct (S1.1) supplied with gas at pressure P1 and an upper duct (S1.2) essentially consisting of a column (C1); in the middle, at a level enabling to avoid the obstacle, an intermediate casing (S3); at the device outlet, a downstream casing (S2) comprising a lower duct (S2.1) supplied with gas at pressure P2 and an upper duct (S2.2), essentially consisting of a column (C2). At all times, the three casings stand filled with the powder material maintained in potential fluidising state, the P1-P2 difference being maintained positive.
Procédé de convoyage en lit hyperdense de matériau pulvérulent permettant de franchir un obstacle, grâce à l'introduction, entre deux convoyeurs horizontaux, l'un amont (T1) et l'autre aval (T2), d'un dispositif de contournement (10; 20; 30) de l'obstacle, comportant trois caissons: à l'entrée du dispositif, un caisson amont (S1) comportant un canal inférieur (S1.1) alimenté en gaz à la pression P1 et un canal supérieur (S1.2), constitué essentiellement d'une colonne (C1); au milieu, à un niveau permettant de franchir l'obstacle, un caisson intermédiaire (S3); à la sortie du dispositif, un caisson aval (S2) comportant un canal inférieur (S2.1) alimenté en gaz à la pression P2 et un canal supérieur (S2.2), constitué essentiellement d'une colonne (C2). A tout moment, les trois caissons restent remplis du matériau pulvérulent maintenu en état de fluidisation potentielle, la différence de pression P1 - P2 étant maintenue positive.
Cloue Christian
Gasquet Gerard
Torsiello Stephane
Aluminium Pechiney
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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