| 摘要 |
PROBLEM TO BE SOLVED: To provide an air-jet pulverizer, by which powder of uniform grain size is favorably obtained by pulverization and classification, in which a locally consumable member is replaceable, resulting in a low cost use for a long period of time. SOLUTION: This pulverizer is provided at least with a classifying rotor for classifying powder pulverized by air jet, a powder-carrying means for leading in and carrying out the powder classified by the rotor, an opening is disposed oppositely below the rotor with a gap of at most 0.1 mm between the rotor lower face and the opening, and the classifying rotor is provided with a rotary body disposed rotatavely, a rodlike body screwed to the rotary body, and an annular body screwed to the rodlike body.
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