FIELD: process engineering.
SUBSTANCE: invention relates to sifting device incorporated with vibration screen for sifting of, for example, crushed stone, gravel or the line. Proposed sifting device comprises guide appliance arranged on top part of sifting device to guide processed material. Guide appliance adjusts the width of sifted material to allow continuous optimum layer of sifted material in lateral direction from initial direction of material from lengthwise axis so that material layer decreases in moving along lengthwise axis and being sifted on directing material in lateral direction toward lengthwise axis so that material layer increases. Guide appliance is arranged at an angle to lengthwise axis.
EFFECT: higher efficiency of sifting.
13 cl, 8 dwg
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