“论磨矿机的临界转速”一文的讨论

• 作 者: 唐克衍 王增图
• 出 处: 金属学报
• 发表日期: 1965年03期
• 关键词: 磨矿 临界转速 球磨机 经验式 筒体 Fischer 衬板 转/分 试验结果 转速

(一) 对王给国外学者所进行的磨矿机临界转速研究的评价提出了不同的看法: 转速是球磨机的重要参数。Fischer在1886年就根据试验结果提出了球磨机合理转速的经验式n=23-28/D~(1/2),(D为球磨机内径,米;n为转速,转/分)。1904年,他又提出了临界转速的经验式:n=40/D~(1/2)。次年,White从理论上导出了有名的、亦即目前所通用的“临界转速”的公式:

(A) Different views were given on the evaluation of the critical speed of grinding mills conducted by King to foreign scholars: Speed ​​is an important parameter of ball mill. In 1886, Fischer put forward the empirical formula n = 23-28 / D ~ (1/2) of the reasonable speed of the ball mill according to the test results. (D is the inner diameter of the ball mill, m; n is the speed, rpm). In 1904, he also put forward an empirical formula of critical speed: n = 40 / D ~ (1/2). The following year, White derived theoretically a well-known formula for “critical speed”