| 摘要 |
PROBLEM TO BE SOLVED: To provide a new fluidized bed type grinding classifier which has a simple structure, versatility and enhanced capability, especially reduces the whirling-up of a material to be ground in a classification chamber even if a large amount of the material to be ground is charged, prevents the solid-gas ratio around a classification rotor arranged to an upper part from rising abnormally to consequently eliminate not only the lowering of classifying accuracy but also over-grinding or the mixing of a coarse powder with a ground rising product and causes no lowering of a production capacity. SOLUTION: This fluidized bed type grinding classifier (counter jet mill type) is constituted so that a grinding position regulating body, which can regulate the distance between the bottom part of a grinder and a grinding nozzle is mounted to regulate the supply amount of the material to be ground in the periphery of the grinding nozzle. COPYRIGHT: (C)2004,JPO |
