Rotary mineral breaker rotor bed contouring

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 7/11 (2006.01) B02C 7/08 (2006.01) B02C 13/18 (2006.01) B02C 13/282 (2006.01)

Patent

CA 2294048

A rotary mineral breaker of the type having a rotor (1) able to rotate about a substantially vertical axis. The rotor has an inlet for mineral pieces which are to be broken. The inlet is substantially parallel to the rotary axis when viewed from above. The rotor also has at least one peripheral exit port (9) for such materials, that is minerals after breaking, to exit radially of the rotor into a surrounding mineral material interaction zone (6). The rotor has a feature that at the or each peripheral port, but carried by the said rotor, there is means providing an exit port geometry which at least includes a mineral piece there to accumulation weir (3) to encourage by the appropriate profiling of the bed, those mineral pieces accelerating, in use, on the bed of retained mineral pieces (5) to exit over the weir (3) away from the upper regions of the retained bed (5).

Cette invention concerne un broyeur de minéraux rotatif du type de ceux qui possèdent un rotor (1) tournant autour d'un axe globalement vertical. Ce rotor comprend une admission des morceaux de minéraux devant être broyés, laquelle admission est globalement parallèle à l'axe de rotation lorsqu'on l'observe depuis le haut. Ce rotor possède également au moins un orifice de sortie périphérique (9) des matériaux ou minéraux broyés, lequel orifice sort du rotor de manière radiale et donne dans une zone d'interaction (6) de la matière minérale qui entoure le rotor. Le rotor se caractérise en ce qu'à chaque orifice périphérique se trouve un système qui est supporté par le rotor et qui définit la forme géométrique de l'orifice de sortie. Ce système comprend au moins une chicane d'accumulation (3) du lit de morceaux de minéraux. Grâce au profilage adéquat du lit, ce système va forcer les morceaux de minéraux qui sont en accélération sur le lit de morceaux de minéraux retenus (5), à sortir en passant au dessus de la chicane (3) et à s'éloigner des zones supérieures du lit retenu (5).

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