DUST-SUCTION NOZZLE FOR ELECTRIC MIXER Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: suction nozzle has inlet branch pipe, body divided by annular wall into two sections, bag-filter positioned in one section and draft impeller positioned in other section and connected with drive shaft of electric engine and outlet baffle. Draft impeller has transmission mechanism with two half-couplings. One half-coupling is connected through shaft with draft fan impeller and other is disposed on drive shaft of mixer electric engine. Nozzle body has threaded projection positioned adjacent to outlet baffle and adapted for rigid connection with mated part of mixer housing. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 1 dwg