Liner plate for grinding mills
AssigneeMidland-Ross Corporation
InventorClive J. Wilson
Life of this patent
Estimating the term…
Abstract
A liner plate for grinding mills includes a short integral lifter bar section having a bolt receiving hole therethrough for securing the plate to the shell of a grinding mill. A replaceable lifter bar section fits onto the liner plate in alignment with the integral lifter bar section. Aligned bolt receiving holes in the replaceable lifter bar section and the plate receive bolts for securing the liner plate and the replaceable lifter bar section together and to the grinding mill shell. Replacement of the replaceable lifter bar section is possible without releasing the entire plate from the shell of the grinding mill.
Claims15
A liner plate for grinding mills comprising:
- a generally transparent shaped plate having front and rear surfaces, opposite sides, and short and long ends, an integral lifter bar section upstanding from said front face adjacent said long end thereof and spaced inwardly from said sides, said integral lifter bar section extending over substantially less than one-half the length of said plate between said ends thereof, at least one bolt receiving hole extending through said integral lifter bar section substantially perpendicular to said plate, and cooperating means on said plate between said integral lifter bar section and said short end for securing a replaceable lifter bar section thereto.
A liner plate for grinding mills comprising:
- a plate having opposite front and rear faces, opposite sides and opposite ends, an integral lifter bar section upstanding from said front face adjacent one of said ends and spaced inwardly from said sides, said integral lifter bar section including at least one bolt receiving hole extending through said integral lifter bar section substantially perpendicular to said plate, an upstanding surface facing toward the other of said ends, and said front face and said upstanding surface being shaped for providing tongue and groove joints with mating surfaces on a replaceable bar section such that the liner plate is adapted to be mounted in a grinding mill with the integral lifter bar section disposed in an area of lesser wear and receive the replaceable lifter bar section in an area of greater wear.
A replaceable lifter bar section for a grinding mill liner plate having opposite front and rear faces, opposite sides and opposite ends, an integral lifter bar section upstanding from the front face adjacent one of the ends and spaced inwardly from the sides, the integral lifter bar section including at least one bolt receiving holes extending through the integral lifter bar section substantially perpendicular to the plate, an upstanding surface facing toward the other of the ends, and the front face and the upstanding surface being shaped for providing tongue and groove joint portions;
- said lifter bar section comprising:
- an elongated bar having top and bottom faces with said bottom face being configured for providing a tongue and groove joint with the liner plate front face, opposite sides and opposite ends with one of said ends being configured for providing a tongue and groove joint with the upstanding surface of the integral lifter bar section, and a plurality of longitudinally-spaced bolt receiving holes through said bar generally perpendicular to said top and bottom faces such that the liner plate is adapted to be mounted in a grinding mill with the integral lifter bar section disposed in an area of lesser wear and receive the replaceable lifter bar section in an area of greater wear.
Dependencies are inferred from the claim text.