FIELD: explosive propellants.
SUBSTANCE: device for sorting semi-finished ball propellant product includes two cascaded housings with mesh drums and a screw. The bottom and one wall of the housing are made with an angle of inclination from the horizontal of 40°. The ends of the drums are completed with a metal cylindrical shell of 0.5-0.6 drum diameter with a screw and a collar. Each housing is equipped with an airlift or hydraulic transport: the upper one is for unloading the fine fraction, the lower one is for unloading the target fraction of the semi-finished ball propellant product and contains nozzles for periodic spraying of the drums under a pressure of 1-2 kgf/cm2.
EFFECT: increase in efficiency of the device for sorting of semi-finished ball propellant product by increasing the degree of extraction of the target fraction and excluding the fine fraction from the target, increasing productivity and improving quality of the ball propellants.
1 cl, 2 dwg, 5 ex
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