Днепродзержинский Государственный Технический Университет
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A screw conveyor comprises a hopper with a charging door, a shaft with a screw, a case with a discharge door and a drive. At the working helical screw surface three blades for one step-turn are located, which are formed as flat surfaces of a length equal to the screw height, and are mounted with possibility of adjusting the angle of attack.