Apparatus and method for grinding lumpy material
AssigneeMoviator Oy
InventorPertti Hänninen
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Abstract
The object of the invention is an apparatus and a method for grinding lumpy material. The solution according to the invention comprises a grinding plate (2) rotating on the horizontal plane around a vertical axis of rotation, onto the top surface of which the material (3) to be ground can be fed, and on the top surface (8) of which grinding plate is a plurality of grinding discs (4a), which rotate by the effect of the rotating motion of the grinding plate (2) and compress the material to be ground against the grinding plate (2). The apparatus comprises a revolver mechanism for changing the angle of the plane of rotation (RP) of the grinding discs (4a) with respect to a line in the direction of the radius of the grinding plate (2).
Claims14
An apparatus configured for grinding a material, wherein the apparatus comprises a grinding plate rotating around a vertical axis of rotation on a horizontal plane, wherein the material can be fed onto a top surface of the grinding plate, wherein on the top surface of the grinding plate is a plurality of grinding discs which are configured to rotate by effect of a rotating motion of the grinding plate and compress the material to be ground against the grinding plate, wherein the apparatus further comprises a plurality of grinding disc units, wherein each of the plurality of grinding disc units comprises one or more grinding discs of the plurality of grinding discs, wherein each of the grinding disc units is suspended on a vertical drive shaft and a horizontal shaft, wherein the vertical drive shaft is parallel with the vertical axis of rotation of the grinding plate, wherein the apparatus comprises a revolver mechanism configured for changing an angle of a plane of rotation of the grinding discs by turning the horizontal shaft and the grinding discs around the vertical axis of rotation of the grinding disc units in a horizontal direction with respect to a line in a direction of a radius of the grinding plate.
Dependencies are inferred from the claim text.