| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder activated carbon feeder capable of smoothly feeding water-adding powder activated carbon from feeding rotors and, further, enhancing fluidity of the water-adding powder activated carbon without making the rotation of a pair of the feeding rotors impossible. SOLUTION: The feeder is provided with a hopper 1 to which the water-adding powder activated carbon is stored, a rake 2 which is arranged in the hopper 1 and prevents the caking of the powder activated carbon, a casing 8 disposed under the hopper 1 and a pair of the feeding rotors 6 which are arranged freely rotatably in the casing 8 and have roughened surfaces. Further, an upper scraper and a lower scraper which come into contact with the surfaces of a pair of the feeding rotors 6 are arranged in the casing 8. In order to enhance the fluidity of the powder activated carbon, it is preferable that an air injection part for blowing compressed air into a powder activated carbon layer is disposed on a throttle part 1a of the hopper or the rake 2 is arranged on the throttle part 1a in proximity to the bottom surface of the hopper 1. COPYRIGHT: (C)2005,JPO&NCIPI
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