| 摘要 |
This invention relates to a micronizing device for fluid jet mills, comprising: a containing body (2) internally delimiting a substantially cylindrical grinding chamber (3); a plurality of nozzles (18), each presenting a mouth (22) opening onto a radially internal side wall (8) of the grinding chamber (3); a supply duct (9) for material to be micronized, opening into the grinding chamber (3); at least one injection duct (12) for pressurized fluid, in fluid communication with said nozzles (18). The nozzles (18) present a pressurized fluid injection direction (X-X) which is tangent to an imaginary circle included inside the grinding chamber (3). The radially internal side wall (8) presents, at each nozzle (18), a first portion (23) which is substantially perpendicular to the injection direction (X- X) of the respective nozzle (18). |
