…The raw material particles used as the grinding media generally have a smaller specific gravity than steel balls, so it is common to use lumps larger than the balls. However, it is still difficult to obtain sufficient grinding power, so various special mills have been developed specifically for autogenous grinding. Aerofall mills, Cascade mills, and Rockcyl mills are representative examples. All of these mills have a shorter body and longer diameter than ordinary ball mills, and are designed to lift the grinding media particles higher and increase the impact force when they fall. … *Some of the terminology that refers to "Rockcyl mill" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…粉砕媒体としての原料粒子は鉄鋼ボールに比べて概して比重が小さいため,ボールよりも大きめの塊を用いるのが普通であるが,それでも十分な粉砕力が得られがたいため,種々の自生粉砕専用の特殊ミルが開発されている。エーロフォールミルAerofall mill,カスケードミルCascade mill,ロックシルミルRockcyl millなどはその代表的なものである。これらのミルはいずれも一般のボールミルに比べて短胴・長径の外形をしており,また粉砕媒体粒子を高く持ち上げ,落下時の衝撃力を高めるためのくふうがなされている。… ※「Rockcyl mill」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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