DRUM MILL Russian patent published in 1995 - IPC

FIELD: construction. SUBSTANCE: drum mill has driving drum with the shell and head devices and milling bodies mounted inside the shell. The head devices are constructed as perforated baffles which separate the inner space of the drum into chambers. The milling bodies are made up as cylindric belt spiral and as disks assembled to provide a stack. Transferring blades are mounted between the turns of the spiral. The spiral profile made up as a screw is provided over periphery of the stack. The milling bodies are arranged inside the mill alternatively. The pitch of the cylindrical belt spiral is greater than the thickness of the belt. The spiral profile has at least two turns of the spiral on each disk. The inner diameter of the cylindrical belt spiral is equal to the outer diameter of the disk stack. The shell of one of the chambers of the drum is perforated. EFFECT: improved design. 5 dwg