Lining elements for a rotary mill and mill equipped with such elements

A rotary mill comprising:

• a shell which is partially filled with grinding media, and
• a lining element located on an internal wall of the shell, for protecting the internal wall of the shell from the grinding media, said lining element comprising:
• a substantially cylindrical outer surface for placement against said internal wall of the rotary mill;
• a substantially cylindrical internal side;
• and
• a nose element having first and second surfaces facing toward respective longitudinal ends of said lining element, said nose element being arranged so as to project radially inwardly from said internal side in such an abrupt manner that said first and second surfaces are generally perpendicular to said internal side and, at most, are only slightly inclined with respect to a diametrical plane;
• said nose element having a peak located at a distance from said internal side, said distance being smaller than 10% of a diameter defined by said cylindrical outer surface;
• said substantially cylindrical internal side having longitudinal undulations arranged along at least a portion of the length of said lining element, said longitudinal undulations being at an angle with respect to a longitudinal axis of said lining element for at least a section of said portion.