| 摘要 |
<p>A mill (1) is provided with: a pulverization chamber (2); a rotating shaft (3) disposed within the pulverization chamber (2); a rotating body (5) having a rotating member (4) affixed to the rotating shaft (3); a casing (6) that constitutes an outer shell for the pulverization chamber (2); an inlet (7) for supplying a solid-gas two-phase flow (K) that includes a powder and the gas into the pulverization chamber (2); and an outlet (8) for removal of the solid-gas two-phase flow (K) from the pulverization chamber (2). A cylindrical frame (9) with an inner peripheral surface (9a) which is corrugated is provided in the casing (6). The solid-gas two-phase flow (K) supplied to the pulverization chamber (2) from the inlet (7) swirls inside the pulverization chamber (2) while being accelerated by the rotating body (5), and the swirling solid-gas two-phase flow (K) is impacted against the inner peripheral surface (9), thereby pulverizing the powder. The frame (9), which has the inner peripheral surface (9a), is disposed coaxially with the rotating shaft (3) and is adjacent to the inner peripheral surface of the casing (6). The powder moves randomly because of impact with the frame (9) and powder particles impact each other.</p> |
