GRINDING APPARATUS Russian patent published in 2002 - IPC

FIELD: grinding equipment. SUBSTANCE: apparatus is adapted for selective grinding of material comprising particles of different size and hardness and mixed with stones and/or wood and equipped with sieving and conveying belt. Grinding wheels arranged above sieving and conveying belt are mounted on rotary manipulator and rigidly connected one with another to form set of driven wheels. Each set of grinding wheels has individual drive engine inserted into bushing of each set of wheels. Bushing, which embraces drive engine in spaced relation, is rigidly connected to rotary manipulator. Bearing is positioned between bushing of each set of grinding wheels and grinding wheel busing. Grinding apparatus provides for obtaining ground material particles of diameter size less than 150 mm. EFFECT: increased efficiency, enhanced reliability in operation and reduced cost of service and maintenance procedures. 3 cl, 4 dwg