@article{oai:air.repo.nii.ac.jp:00001298, author = {柴山, 敦 and 新田, 幸人 and 森, 祐行 and ほか and SHIBAYAMA, Atsushi and NITTA, Sachihito and MORI, Sukeyuki}, issue = {1}, journal = {素材物性学雑誌}, month = {Jun}, note = {To define the comminution mechanism and achieve a high recovery of fine particles, dry tower mill KD-l and KD-2 have been developed and modified into KD-3. In this study, grinding tests were carried out on limestone to clarify the comminution mechanism in the KD-3. A particular attention was paid to important factors such as size of the grinding media (steel balls of ¢ 10 mm, ¢ 13 mm, ¢ 16 mm, ¢ 20 mm), the speed of the stirring screw [from 1.08s-1 (65rpm) to 1.58s-1 (95rpm)] and the role of nets in the classifying column. The study has revealed an optimum efficiency for steel balls of ¢ 20 mm size and stirring screw rotating at 1.58s-1 (95 rpm). Besides, the maximum particle diameters of products were indicated by the corrected curve which is estimated by the assumption of Stoke's law. The relationship between maximum and 50% particle diameters was proportionally and by using the columns provided with nets, the overflow products were classified by high classifying efficiency.}, pages = {28--38}, title = {乾式タワーミル粉砕機の開発と粉砕特性に関する研究}, volume = {13}, year = {2007} }