CPC B02C 19/068 (2013.01) | 12 Claims |
1. A fluidized bed opposed jet mill to produce for producing ultrafine particles from a feed material of low bulk density having a housing in vertical design, with a product feed point and a product discharge, with a grinding zone located in a lower area of the housing which has grinding nozzles spaced evenly around a circumference thereof, with jets of the grinding nozzles intersecting at one central point and with a classifying device installed in an upper area of the housing wherein the feed material is dosed as a gas-particle mixture from below into a sump of the fluidized bed opposed jet mill, whereby a deflector hood is fitted above the product feed point and below a level of the grinding nozzles, and the grinding nozzles are configured to be flush with a wall of the grinding zone.
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