FIELD: transportation.
SUBSTANCE: back side of the blade of the dynamic shaft of the screw conveyor is protected by an air cushion, which makes it possible to practically reduce the flow of fluid during the application of a pulse and organize the direction of the pulse in the necessary technological need.
EFFECT: possibility of organizing the direction of the action of a pulse of force increases the efficiency and quality of the dynamic effect, durability and reliability by reducing loads in kinematic pairs, reducing energy losses, turbulence of substances behind the back of the blade when the blade is idling.
1 cl, 3 dwg
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