B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/16 (2006.01)
Patent
CA 2418191
The invention relates to a flotation mechanism (4) comprising a directional element (25) and vertical vanes (26) located in a flotation cell (2). The directional element is symmetrical and is fixed at the centre to the lower section of the hollow shaft of the mechanism. According to the corresponding method, due to the directional element (25), which is cylindrically inclined downwards from the outer edge the flotation mechanism directs the gas-slurry suspension that is formed in a downward slanting direction towards the side wall of the cell. The mineral suspension rises upwards from the side wall towards the centre of the cell, from where the flow is diverted to the edges of the cell and the froth generated is removed from the cell. Using this flotation mechanism enables a powerful agitation, extending throughout the entire mixing zone (I).
Cette invention a trait à un mécanisme de flottation (4) comprenant un élément directionnel (25) et des aubes verticales (26) placées dans une cellule de flottation (2). L'élément directionnel, qui est symétrique, est fixé au centre de la partie inférieure de l'arbre creux du mécanisme. Du fait de la présence de l'élément directionnel cylindrique (25) qui part à la verticale vers le bas depuis le bord extérieur, le mécanisme dirige le mélange suspension épaisse/gaz, prenant une direction oblique vers le bas, vers la paroi latérale de la cellule. La suspension minérale s'élève depuis la paroi latérale vers le centre de la cellule, d'où le flux est dévié vers les bords de la cellule et l'écume produite est extraite de la cellule. L'emploi de ce mécanisme de flottation permet de générer une agitation vigoureuse dans l'ensemble de la zone de mélange.
Jounela Seppo
Lilja Launo
Nyman Bror
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Outokumpu Oyj
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