A liner arrangement for a centrifugal pump for processing slurries

A liner arrangement for a centrifugal pump for processing slurries, the centrifugal pump comprising an impeller and a drive shaft connected with a back portion of the impeller, the liner arrangement comprising:

• a back liner arrangeable around at least the back portion of the impeller of the centrifugal pump and around a circumferential portion of the drive shaft,
• a complementary liner arrangeable at a circumferential end portion of the drive shaft and at a central back portion of the impeller,
• wherein the back liner comprises an inclined back liner portion providing an inclined back liner surface and the complementary liner comprises an inclined complementary liner surface,
• wherein the inclined back liner surface is opposite the inclined complementary liner surface, and
• wherein the liner arrangement is configured to provide a channel between the inclined back liner surface and the inclined complementary liner surface, and wherein the inclined back liner surface comprises one or more grooves.