DRY DUST REMOVER FOR RICE POLISHING AND METHOD OF MANUFACTURING DRY BRAN-REMOVED RICE

摘要

PROBLEM TO BE SOLVED: To sufficiently remove the dust such as bran sticking to the surface of polished rice without water.;SOLUTION: The brewer's rice for brewing polished by grinding is fed into an accepting tank 21. The surface of the polished rice is polished by a fine meshed grind stone in a rice polishing machine 22. A plurality of voltage impressing needles 33 which are needle-like electrodes and a plurality of ultrasonic vibrator transducers 34 consisting of piezoelectric elements, etc., are arranged along a conveyance path 41 for conveying the polished rice delivered from the machine 22. A prescribed voltage is impressed from electricity 31 for impression to the needles 33 to inject charges in such a manner that the electrification state of the polished rice in the conveyance path 41 and the dust sticking thereto is made uniform. The polished rice is irradiated with ultrasonic waves from the ultrasonic vibrator transducers, by which microvibrations are imparted to the dust sticking to the polished rice and the dust intruding into the polished rice surface and the cracks of the surface is removed. Only the dust removed through a grain screen 36 is sucked and is introduced to a dust collection port. The polished rice (bran-removed rice) separated of the dust is introduced to a discharge port.;COPYRIGHT: (C)2003,JPO