タワーミル粉砕機における分級カラムの内部形状がサイクロン捕集粉砕産物の最大粒子径に及ぼす影響

概要

論文の詳細を見る
The Tower mill KD-3 is an improved version of laboratory tower mills VD-1, KD-1 and KD-2 in which a specific classifying column has been introduced to facilitate the recovery of fine particles with the ascending airflow generated by the blower as soon as they are ground. Unfortunately, because of the fast circling airflow in the center of the classifying column, it was difficult to have control over the maximum size of particles collected in the cyclone. The present study aimed at leveling the circling airflow by installing a vertical plate, a horizontal plate or net inside the classifying column to correct this deficiency. It was found that installing a horizontal plate or a net inside the column reduced the maximum size and weight of products collected in the cyclone. Furthermore, the maximum size of cyclone products could be consistent, regardless of the duct airflow rate. Through this process, coarse particles blown from the comminution zone collide with the plate or the net and settle down to the bottom of the classifying column.
社団法人資源・素材学会の論文
2002-01-25