Gebrueder Buehler Ag

Armin Geiger

An agitator mill for continuous fine grinding and dispersion of solid constituents suspended in a liquid has a grinding container, an agitator mounted for rotation in the grinding container, a charge of grinding elements within the grinding container, an inlet into the grinding container for flow of grinding stock to the charge of grinding elements and an outlet from the grinding container for flow of grinding stock away from the charge of grinding elements, pressure means for the application of pressure to the charge of grinding elements to vary the volume of the charge of grinding elements, the agitator having a shaft for rotating it, a drive bearing in the region of one end of the grinding container to permit rotation to be applied to the shaft in the region of a drive end of the shaft and an end bearing for the other end of the shaft, the said end bearing being disposed within the charge of grinding elements. Entry separator means prevent the passage upstream of grinding elements and is disposed upstream of the end bearing. The end bearing may be surrounded by a bearing housing e.g. better to protect it from grinding elements or e.g. for ease of cooling or lubrication or centration etc.

Agitator mill

A heavy duty agitator ball mill for continuous grinding and dispersion of material suspended in a liquid has an upright rotor made of aligned rotor ring elements, mounted for rotation within a stator which preferably is also made up of aligned stator ring elements. Rotor and stator form a grinding chamber between them which holds a charge of grinding balls. Agitator members extend into the grinding chamber both from the rotor and from the stator. Both rotor and stator have cooling channels for flow of coolant, bounded in part by ribs formed on rotor and stator and hence promoting heat conduction. Working surfaces are of hard wearing materials as is made possible by the construction. The ring elements are readily replaceable, as are hard inserts of the agitator members.

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Wattwil, Switzerland

Armin Geiger