Apparatus for micronization of powdered material with capacity to prevent incrustations

Apparatus (10; 110) for the micronization of a powdered material or product (P) comprising a micronizer mill (20), of the type with high-energy jets of a gaseous fluid, in turn comprising a micronization chamber (20a), in which micronization chamber the powdered material (P) is micronized as a result of the collisions between its particles caused by the high-energy jets (G) of a first gaseous fluid (A), such as nitrogen or air, wherein the micronization chamber (20a) of the micronizer mill (20) is delimited by walls (20f) which have at least one porous portion which is traversed by a regular flow (f1), of a second gaseous fluid (F), aimed towards the interior of the micronization chamber, so as toavoid the formation of incrustations and/or accumulations of powdered material in the same micronization chamber (20a). More particularly the micronization apparatus (10) comprises a first outer annular chamber (20b) which extends around the micronizationchamber (20a) and is fed by the first gaseous fluid (A) which g