Grinding mill liner adapter
AssigneeSvedala Industries, Inc.
InventorMichael Wason
Life of this patent
Estimating the term…
Abstract
An adapter for mounting a liner to a first mill having an inner diameter with a first contour. The liner has a back face with a second contour shaped for mating with a second mill. The adapter includes a top face and a bottom face. The top face supports the back face of the liner. The bottom face has a contour formed for mating with the contour of the first mill.
Claims32
A liner assembly for lining a first grinding mill having a first inside diameter, the assembly comprising:
- a liner having a front edge, a rear edge, a working face and a back face, the back face being curved to mate with a second grinding mill having a second dissimilar inside diameter;
- an adapter configured for being coupled to the liner, the adapter including a top face configured for abutting against the back face of the liner and a bottom face curved so that a majority of the bottom face abuts the first grinding mill;
- and
- means for coupling the liner and the adapter to the first grinding mill;
- wherein the back face of the liner curves outwardly with a first convexity and wherein the bottom face of the adapter curves outwardly with a second larger convexity.
An adapter for mounting a liner to a grinding mill of a first diameter, the liner having a grinding front face surface and a back face contour for mating with and being received by a grinding mill of a second diameter, the adapter comprising:
- a top face having a top face contour defining a radius of curvature about a first longitudinal axis, the top face for mating with and receiving the back face of the liner;
- and
- a bottom face opposite the top face, the bottom face having a bottom face contour defining a radius of curvature about a second longitudinal axis spaced from the first longitudinal axis, wherein the radius of curvature of the bottom face contour is smaller than the radius of curvature of the top face contour, and such that the top face contour curves with a first concavity and the bottom face contour curves with a second larger convexity, the bottom face for mating with and being received by the grinding mill of a first diameter.
A liner assembly for lining a grinding mill having a peripheral wall with a first inside diameter and being rotatable about a grinding mill axis, the liner assembly comprising:
- a liner having a working face and a back face opposite the working face, the back face having a back face contour defining a radius of curvature about a first longitudinal axis;
- and
- an adapter having a top face and a bottom face opposite the top face, the top face having a top face contour configured for abutting against the back face of the liner and thus defining a radius of curvature about the first longitudinal axis, the bottom face having a bottom face contour defining a radius of curvature about a second longitudinal axis spaced from the first longitudinal axis and coincident with the grinding mill axis, wherein the radius of curvature of the bottom face contour is smaller than the radius of curvature of the top face contour, such that the top face contour curves with a first concavity and the bottom face contour curves with a second larger convexity, the bottom face for abutting against the peripheral wall of the grinding mill.
A liner assembly for lining a grinding mill having a peripheral wall with a first inside diameter and being rotatable about a grinding mill axis, the liner assembly comprising:
- a liner having a working face and a back face opposite the working face, the back face having a back face contour defining a radius of curvature about a first longitudinal axis, wherein the liner further comprises a leading edge and a trailing edge opposite the leading edge, and wherein the working face comprises:
- a lifting portion with a lifting surface extending longitudinally and projecting generally radially inward from the back face, the lifting surface exposed for lifting materials in primary grinding applications;
- and
- a leading portion with a leading surface extending longitudinally between the lifting surface and the leading edge, the leading surface slanting inward at an angle, the leading surface exposed for lifting material in secondary grinding applications when the lifting portion has worn away;
- and
- an adapter having a top face and a bottom face opposite the top face, the top face having a top face contour configured for abutting against the back face of the liner and thus defining a radius of curvature about the first longitudinal axis, the bottom face having a bottom face contour defining a radius of curvature about a second longitudinal axis spaced from the first longitudinal axis and coincident with the grinding mill axis, the bottom face for abutting against the peripheral wall of the grinding mill.
A liner for use in a grinding mill, the grinding mill having a peripheral wall for rotation about an axis, the liner comprising:
- a leading edge;
- a trailing edge opposite the leading edge;
- a back face between the leading edge and the trailing edge for attachment toward the peripheral wall of the grinding mill, the back face having a curvature about an axis;
- and
- a working face between the leading edge and the trailing edge opposite the back face, the working face comprising:
- a lifting portion with a lifting surface extending longitudinally and projecting generally radially inward from the back face, the lifting surface exposed for lifting materials in primary grinding applications;
- and
- a leading portion with a leading surface extending longitudinally between the lifting surface and the leading edge, the leading surface slanting inward at an angle, the leading surface exposed for lifting material in secondary grinding applications when the lifting portion has worn away.
Dependencies are inferred from the claim text.