Collision-type gas current pulverizer and method for pulverizing powders.

摘要

A pneumatic pulverizer comprises an acceleration pipe (3) for transporting powders under acceleration by a high pressure gas, a pulverization chamber (8), a collision member (4) for pulverizing the powders ejected from the acceleration pipe (3) by a force of collision, the collision member being provided against the outlet of the acceleration pipe, a raw material powder supply inlet (1) provided on the acceleration pipe (3), and a secondary air inlet (10) provided between the raw material powder supply inlet (1) and the outlet (13) of the acceleration pipe.