Method for reconditioning a used grinding roller
AssigneePolyslus AG
InventorsNorbert Patzelt, Johann Knecht, Herbert Pingel
Life of this patent
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Abstract
The invention relates to a method for reconditioning a used grinding roller of a material bed roller mill having profile-members which are embedded, with a portion of the length thereof, in holes of the roller body and, with the remainder of the length thereof, project above the surface of the roller body. For the reconditioning operation, after the worn profile-members are removed, the worn surface of the roller body is turned, and a material layer is applied in a welding operation and is provided with holes for receiving new profile-members. Such a method allows particularly cost-effective reconditioning.
Claims6
Method for reconditioning a used grinding roller of a material bed roller mill, containing a plurality of profile-members which are embedded, with a portion of the length thereof, in holes of the roller body and, with the remainder of the length thereof, project above the surface of the roller body, with that projecting portion of the profile-members and the surface of the roller body being at least partially worn,
- characterised by the following method steps:
- a) after the worn profile-members are removed, the worn surface of the roller body is turned at least in a part-region of the width of the roller body;
- b) subsequently, a material layer is applied at least to the turned surface in a welding operation in order to increase the diameter;
- c) subsequently, that welded material layer is provided with holes for receiving new profile-members.
Dependencies are inferred from the claim text.