DEVICE FOR MECHANICAL ACTIVATION OF CEMENT Russian patent published in 1996 - IPC

FIELD: activation of cement-like materials in construction and other industries. SUBSTANCE: device has stepped vertical body with cylindrical working chambers for mechanical treatment located one upon other. Diameter of lower chamber is less than diameter of upper chamber. Additional cylindrical grinding chambers of diameter less than of lower chamber are arranged around this chamber and coupled by pipe connections in upper part to bottom holes at upper chamber wall. All chambers have central bottom holes, individually driven rotors and baffles. Mounted on walls of all chambers around rotors are circular partitions. EFFECT: high efficiency. 3 cl, 1 dwg