| 摘要 |
A method and jet mill apparatus for generating fine particles by means of a jet mill with an integrated dynamic air classifier, wherein the rotational speed of a classifying rotor of the air classifier and the inner amplification ratio V (=Di/DF) are so selected, set or controlled that the circumferential velocity of the operating medium at an immersion pipe or outlet connection assigned to the classifying wheel reaches up to 0.8 times of the velocity of sound of the operating medium. A dynamic air classifier with a classifying wheel is additionally created, wherein a source (Tank 18a) for an operating medium is assigned which has a higher velocity of sound than air (343 m/s). An operating method for an air classifier with a classifying rotor or wheel is created, wherein the operating medium is a fluid, more preferably a gas or a vapour, which has a higher and more preferably a substantially higher velocity of sound than air (343 m/s).
|
