| 摘要 |
PROBLEM TO BE SOLVED: To provide a minute magnetic material removing apparatus which can surely and efficiently remove contaminated minute magnetic materials even from granular substance transported at fast transportation speed. SOLUTION: The minute magnetic material removing apparatus is constituted by successively disposing from an upstream side a gate 6 which levels transported granular substance to thin layer thickness along a belt conveyor 3 for transporting the granular substance, a plurality of magnetic sensors 7 which are arranged in the width direction of a transportation surface and detect the minute magnetic materials contaminated in the granular substance and a plurality of suction nozzles 8 which are arranged in the width direction of the transportation surface so as to correspond to these magnetic sensors 7. Further in the apparatus, a controller 9 performs tracking of the minute magnetic material detected by each magnetic sensor 7 to a position of the corresponding suction nozzle 8 and makes the corresponding suction nozzle 8 operate, and thus the minute magnetic material contaminated in the granular substance can be surely and efficiently removed in a pinpoint manner without lowering transportation speed of the belt conveyor 3. COPYRIGHT: (C)2005,JPO&NCIPI
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