CONCRETE-MORTAR MIXER Russian patent published in 1998 - IPC

FIELD: periodic-action devices for preparation mainly of fine-grained concrete mixes and mortars. SUBSTANCE: the device uses vertical cylindrical tank 1 with a base in the form of truncated cone 2, unloading device 3 secured on it, motor 4 connected to output shaft 6 through belt transmission 5, rotor 7 carrying screw extension piece 8 having a double- threaded helical line with screw blades 9 and 10, blades 11, whose working surface is installed with angle of incidence $$$, breaking blades 12, whose axles 13 are positioned at angle $$$ equal to the helix angle of the helical line of the double-threaded screw extension piece, and working surface 14 is installed with angle of incidence $$$ reverse to the angle of incidence of the blades. EFFECT: improved design. 2 dwg