Preliminary size reduction device for a ball mill or agitator ball mill and ball mill with a preliminary size reduction device
AssigneeNETZSCH-Feinmahltechnik GmbH
InventorsUdo Enderle, Theron Harbs, Holger Moeschl, Lars-Peter Weiland
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Abstract
A preliminary size reduction device for a ball mill or agitator ball mill and a ball mill with a preliminary size reduction device, wherein the preliminary size reduction device is disposed between a grinding stock inlet of the ball mill or agitator ball mill and a grinding chamber and includes a first size reduction mechanism constituted stationary and a second, rotationally mobile size reduction mechanism, between which a size reduction gap is formed. The first size reduction mechanism constituted stationary is a size reduction ring disposed in the grinding container.
Claims15
A preliminary size reduction device for a ball mill or agitator ball mill comprising,
- a first size reduction means being stationary,
- a second size reduction means being rotationally mobile,
- a size reduction gap between the first size reduction means and second size reduction means,
- wherein the preliminary size reduction device is positionable between a grinding stock inlet of the ball mill or agitator ball mill and a grinding chamber,
- wherein the first size reduction means is a size reduction ring disposable in a grinding container,
- wherein the first size reduction means comprises an inner toothing system,
- wherein the second size reduction means comprises a first sub-region and a second sub-region,
- wherein the second sub-region guides grinding stock in the direction of the first sub-region,
- wherein the first sub-region of the second size reduction means comprises a first outer toothing system, and
- wherein the first sub-region of the second size reduction means is constituted as a cylindrical region;
- wherein the first size reduction means and the second size reduction means are configured in such a way that the outer toothing system of the first sub-region of the second size reduction means engages into the inner toothing system of the first size reduction means, thereby forming the size reduction gap.
An agitator ball mill comprising:
- a preliminary size reduction device between a grinding stock inlet of the agitator ball mill and a grinding chamber,
- wherein the preliminary size reduction device comprises a first size reduction means constituted stationary and a second, rotationally mobile size reduction means, between which a size reduction gap is formed,
- wherein the first size reduction means constituted stationary is a size reduction ring disposed in the grinding chamber, wherein the first size reduction means constituted stationary comprises an inner toothing system and that the second size reduction means comprises a first sub-region and a second sub-region,
- wherein the second sub-region comprises guiding structures for grinding stock, by means of which the grinding stock can be guided in the direction of the first sub-region, and wherein at least the first sub-region of the second size reduction means comprises a first outer toothing system,
- wherein the first sub-region of the second size reduction means is constituted as a cylindrical region, and
- wherein the first size reduction means and the second size reduction means are disposed in such a way that the outer toothing system of the first sub-region of the second size reduction means engages into the inner toothing system of the first size reduction means, thereby forming the size reduction gap.
A preliminary size reduction device for a ball mill or agitator ball mill comprising;
- a stationary size reduction ring disposable in a grinding container having an inner toothing system;
- a second size reduction means being rotationally mobile having a first sub-region having a cylindrical shape with an outer toothing system and a second sub-region;
- wherein the second sub-region guides grinding stock in the direction of the first sub-region;
- wherein the inner toothing system of the size reduction ring and the outer toothing system of the first sub-region of the second size reduction means engage to form a size reduction gap;
- and
- wherein the preliminary size reduction device is positionable between a grinding stock inlet of the ball mill or agitator ball mill and a grinding chamber.
Dependencies are inferred from the claim text.