DRUM-TYPE MILL Russian patent published in 2006 - IPC B02C17/22 

FIELD: solid substance grinding equipment.

SUBSTANCE: drum-type mill has rotating housing, similar longitudinal metal lifters arranged in equally spaced apart relation on housing inner surface, deformed lining plates of flexible material placed an interference fit between lifters for tight contacting with housing inner surface, and means for holding lining plates in deformed state. Lifters are made in the form of rails, with each of said lining plates tightly contacting with rail side surfaces and housing inner surface. Means for holding flexible lining plates in deformed state are made in the form of pins having spherical heads and rigidly fixed on housing inner surface and mating spherical receptacles formed in lining plate and provided with locking opening which embraces spherical head of pin.

EFFECT: increased wear resistance of lining of drum-type mill equipped with lifters.

3 dwg