Roll for a roller grinder, and roller grinder comprising such roll

摘要

The present invention relates to a roll (8) for a roller grinder. The roll (8) comprising a shaft (10) having a support structure (11); a plurality of grinding shell segments (22) circumferentially arranged around said shaft (10) to form a tubular grinding shell (20) supported by said support structure (11); and a wedging device (32; 132) for each grinding shell segment (22, 122), wherein each wedging device (32; 132) is arranged in a channel extending axially along said shaft (10; 110) and defined by the associated grinding shell segment (22; 122) and the support structure (11; 111), wherein each wedging device (32; 132) is arranged to releasably secure said grinding shell segment (22; 122) to said support structure (11; 111). The present invention also relates to a high pressure grinder comprising the above roll.