Lifter bar
AssigneeVulco, S.A.
InventorsVictor Moreno, Hector Lara, Alonso Pinto
Life of this patent
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Abstract
A lifter bar for a grinding mill includes an elongate structural support defining a longitudinal axis and extending from (i) a first end transverse to the longitudinal axis to (ii) a second end transverse to the longitudinal axis; a plurality of structural plates extending along the longitudinal axis in spaced relation, where each structural plate is transverse to the longitudinal axis, and defines opposed edges. The lifter bar may further include at least two protective plate portions, each protective plate portion being mounted over one set of the opposed edges.
Claims20
A lifter bar for use in a grinding mill, the lifter bar comprising:
- an elongate structural support defining a longitudinal axis and extending from (i) a first end transverse to the longitudinal axis to (ii) a second end transverse to the longitudinal axis;
- a plurality of structural plates extending along the longitudinal axis in spaced relation, where each of the structural plates of the plurality of structural plates is transverse to the longitudinal axis, and each defines opposed edges;
- and
- an elastomer enclosure surrounding the plurality of structural plates and at least partially surrounding the elongate structural support, to prevent each of the structural plates of the plurality of structural plates from being directly impacted by a grinding medium when used in a grinding mill.
A grinding mill comprising:
- (i) a shell,
- (ii) a plurality of lifter bars comprising:
- an elongate structural support defining a longitudinal axis and extending from (i) a first end transverse to the longitudinal axis to (ii) a second end transverse to the longitudinal axis,
- a plurality of structural plates extending along the longitudinal axis in spaced relation, where each structural plate is transverse to the longitudinal axis, and defines opposed edges, and
- an elastomer enclosure surrounding the plurality of structural plates and at least partially surrounding the elongate structural support, to prevent the structural plates from being directly impacted by a grinding medium when in use,
- the plurality of lifter bars being mounted on an inner surface of the shell in circumferentially spaced relation, and
- (iii) at least one shell liner mounted between adjacent lifter bars.
Dependencies are inferred from the claim text.