Treaded lifter bar

Abstract

A treaded lifter bar (1) for grinding mill is provided with a plurality of flexible treads (2) positioned over the core rubber matrix forming its main rubber surface. Treads (2) have a zig-zag configuration with higher rubber content in their wear zone to increase the surface area and reduce the wearing lifter bar (1). The treads (2) primarily absorb the impact force (3a) of slurry (4) and dissipate the heat generated due to impact. The slurry (4) is deposited on top of the treads (2) thus protecting the treads (2) from direct contact with the slurry (4) to ensure less wear. The zig-zag configuration of the top wearing treads (2) of the treaded lifter provides increased wear volume.

Dependencies are inferred from the claim text.