FIELD: crushing or disintegrating.
SUBSTANCE: crusher comprises housing that receives main bottom rotor and secondary top rotor. The ratio of the diameter of the peripheral orbits of the main bottom rotor to that of the secondary top rotor can vary. The secondary rotor is provided with blades whose number is equal to the number of hummers of the main rotor and with one or two curved side grooves with smoothed outer top edges arranged tangentially with respect to its peripheral orbit.
EFFECT: enhanced efficiency.
8 cl, 5 dwg
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