Tilted lifters for autogenous mills
OwnerYun-Song Weiinventor
Life of this patent
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Abstract
In autogenous mills, lifters used on shell and end linings are so constructed with their teeth tilted toward the direction of rotation of the mill in such a way that teeth of lifters statistically coincide to the mean velocity of falling rocks relative to moving lifters.
Claims7
In an autogenous mill including a casing and a number of lifters on both shell and liners within the casing, the improvement comprising said lifters having teeth which are inclined toward the direction of motion of the mill, said teeth having a center line which will substantially coincide with a mean locus of falling rocks within the mill, said mean locus being substantially a logarithmic spiral, said center line being straight for better resistance to buckling.
Dependencies are inferred from the claim text.