ROLL MILL Russian patent published in 1997 - IPC

FIELD: grinding of paste and dry materials. SUBSTANCE: roll mill has hydraulic devices for pressing the rolls. The devices are made in the form of single-acting power cylinders secured on the supports of the movable roller. Mounted in rod end of power cylinder is a spring with an arrangement for adjusting spring compression force. The output end of the rod carries a support head provided with male thread screwed into threaded bushing. The body of the power cylinder thrusts against the end face of the threaded bushing through a safety device, consisting of two coaxially located sleeves interconnected by a shear pin. The end of the threaded bushing is screwed into a threaded hole on the mill shell. Fastened to the mill shell are a dial with circular scale and a plate with linear scale. The threaded bushing carries a hand wheel and a dick with pointer intended to indicate the angle of rotation of the threaded busing. EFFECT: improved efficiency. 5 dwg