Method and device for synchronously impact milling of material

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 19/00 (2006.01) B02C 13/18 (2006.01)

Patent

CA 2268529

The invention relates to a method for directly and multiply making material collide in an essentially deterministic manner, the material being guided, by a rotating guide member (8) from a central feed, along a guide face (10) and to a delivery end (19), in such a guide manner, that the material leaves the guide member, from an essentially predetermined take-off location, at an essentially predetermined take-off angle and at a take-off velocity which can be selected with the aid of the angular velocity, with the instantaneous angle (.theta.) between the radial line (48) on which the delivery is situated and the radial line (49) on which is situated the location where the spiral stream and the path of the rotating impact member (14) intersect one another being synchronised in such a way that the impact takes place at an essentially predetermined location, at an essentially predetermined impact angle and at an impact velocity which can be selected with the aid of the angular velocity, whereupon the material, when it comes off the impact face, collides with a collision face of a stationary impact member at a collision velocity which is at least as great as the impact velocity.

Cette invention se rapporte à un procédé visant à faire s'entrechoquer de manière directe, multiplicatrice et sensiblement déterministe des particules de matière, ladite matière étant guidée par un élément de guidage rotatif (8), à partir d'une source centrale, le long d'une surface de guidage (10) et jusqu'à une extrémité d'alimentation (19), de telle sorte que cette matière quitte l'élément de guidage, en un emplacement de projection sensiblement préétabli, suivant un angle de projection sensiblement préétabli et à une vitesse de projection qui peut être sélectionnée à l'aide la vitesse angulaire, l'angle instantané ( theta ) entre la ligne radiale (48) sur laquelle se déroule l'alimentation et la ligne radiale (49) sur laquelle se trouve l'emplacement où le courant hélicoïdal et la trajectoire de l'élément rotatif à impact (14) se croisent, étant synchronisé de façon à ce que l'impact ait lieu en un emplacement sensiblement préétabli, suivant un angle d'impact sensiblement préétabli et à une vitesse qui peut être sélectionnée à l'aide de la vitesse angulaire. Ladite matière, lorsqu'elle se détache de la surface d'impact, entre en collision avec une surface de collision d'un élément d'impact fixe, à une vitesse de collision qui est supérieure ou égale à la vitesse d'impact.

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