ROLLER-TRAY MILL Russian patent published in 2010 - IPC B02C15/00 

FIELD: chemistry.

SUBSTANCE: invention relates to dry fine grinding granular materials and can be used in electronic, ceramic, chemical, construction and other industries. The roller-tray mill has rotary tray with rollers fitted in a housing, and a mechanism for pressing onto the rollers. In order to increase efficiency of the fine grinding process, the rollers rotate uniformly with frequent slowing down, which creates a powerful abrasive effect and in order to prevent harmful metal particles from wearing of the working components falling into the grinding products, rings made from dense wear-resistant ceramics are fitted on the rollers and the tray is lined with polyurethane.

EFFECT: invention increases efficiency of the fine grinding process, reduces wearing of working components and prevents harmful metal particles from falling into ground powder.

1 dwg