This paper dea 】 s with the air − fl 【 エw type of mil 】which jssuitab 】 efor fine pulverization of adhesive ma 亡 erials in dry condition . Axia 王and swirling air 一 且ow is induced by two co axial impel 互 ers set on the driving shaft in the mill casing cooled by wat 已 r circulation inside it . The mechanism of pulverization is clarified by visualization and CFD analys 呈 s Qf the internal 且ows , and a large llumber of experiments of pulverizati 帆 The pulverization for three kinds of adhe3ive

more »

... alsis performed under different conditions of the c 玉 earance between thesecond impeller and the casin 霧 inner wall and at different circumferen し ial speeds of the impeller for a suction fiDIV at the dis ⊂ harge port , The apPropriate air − How condition for each material exists to prevent fille particles from adhering on the inner walL The characteristics of the mil 正 are also improved large ! y by air cooling and suitable selection of the inner wall . Thereby , continuous 丘 ne pulverizati 〔 m of adhesive mater { als is reaIized