Centrifugal mill for grinding loose material

Abstract

The invention relates to a centrifugal mill (1) for grinding loose material, comprising a frame (2) for supporting a grinding chamber (3) provided with a longitudinal axis (A) and with at least one opening (4, 5) for introducing and / or discharging respectively the material to be ground and the ground material, first means (6) for the articulation of the grinding chamber to the frame, which are formed proximate to one of the two opposite ends of the longitudinal axis (A) and are adapted to allow the grinding chamber (3) to perform a motion in which the longitudinal axis (A) rotates about a fixed axis (B) with which it shares a point of incidence (P), the angle of incidence between the axes (A, B) remaining substantially constant during the motion, means (8) for actuating the grinding chamber in the motion, which are provided proximate to the other end of the longitudinal axis, second means (7) for the articulation of the grinding chamber to the actuation means, and a solid body (9) that is formed inside the grinding chamber (3), a compartment delimited by internal walls (3a) of the grinding chamber (3) and by an external surface (9a) of the solid body (9) defining a portion of the chamber that is active for the milling.

Description

technical field [0001] The invention relates to a centrifugal ball mill for grinding loose materials. Background technique [0002] In particular but not exclusively in the field of ceramics, centrifugal ball mills are known for grinding bulk materials, for example for the preparation of ceramic mixtures, enamels, screen printing pastes or the like. [0003] The known centrifugal ball mill basically comprises: a support frame for a grinding chamber provided with a longitudinal axis of symmetry; first means for the articulation of the grinding chamber to the frame, arranged close to the axis of symmetry of said chamber one of the two opposite ends of the chamber and is adapted to enable rotational movement thereof about a fixed axis sharing a point of entry therewith; and means for actuating said rotational movement of the grinding chamber about the fixed axis, which means are constructed in close proximity to At the other end of the axis of symmetry, the second articulation...

AI Technical Summary

Problems solved by technology

[0007] These known centrifugal ball mills are not without drawbacks, which include the fact that they require unfavorably long operations for loading the material to be ground for the grinding and for unloading the ground material which is harmful for production

[0008] Another drawback of known ball mills is that they do not grind material uniformly, i.e. the ground material has non-uniform sizes spread over a large value range

[0009] Another disadvantage of known centrifugal ball mills is that they have a considerable size and footprint

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