Grinding mill and method of grinding

Details Grinding mill and method of grinding Grinding mill and method of grinding

B - Operations, Transporting

02

C

B02C 19/08 (2006.01) B02C 17/00 (2006.01) B02C 19/11 (2006.01)

Patent

CA 2697516

A grinding mill (100) for particulate material includes a rotary container (106) having an inner surface (118), a material feed for feeding the particulate material to the container, a first rotary drive (108,110,112) rotating the container about a first rotational axis (116), and a shear inducing member (126) contacting the particulate material in the container so as to induce shearing in the particulate material layer. The shear inducing member is mounted about a second axis (138), which is angularly displaced from the rotational axis of the container. The mill may also include an angle adjustment mechanism (140,146,148,150) for adjusting the relative angular displacement of the container rotational axis (116) and the shear member axis (138).

L'invention porte sur un broyeur (100) de matière particulaire qui comprend : un récipient rotatif (106) possédant une surface interne (118); une charge d'alimentation de matière qui alimente le récipient en matière particulaire; un premier dispositif d'entraînement rotatif (108,110,112) qui fait tourner le récipient autour d'un premier axe de rotation (116); et un élément de cisaillement (126) qui se trouve en contact avec la matière particulaire dans le récipient de façon qu'il entraîne un cisaillement de la couche de matière particulaire. L'élément de cisaillement est monté sur un second axe (138), qui est décalé selon un angle par rapport à l'axe de rotation du récipient. Le broyeur de l'invention peut également comprendre un mécanisme d'ajustement angulaire (140,146,148,150) destiné à ajuster le décalage angulaire relatif entre l'axe de rotation du récipient (116) et l'axe de l'élément de cisaillement (138).

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