按比例放大到1000英尺~3浮选机的技术和设计的考虑

• 作 者: V.R.Degner 刘桂琴
• 出 处: 国外金属矿选矿
• 发表日期: 1979年12期
• 关键词: 空气传导 非金属矿山 转子 浮选槽 转子速度 流体动力学 路中 低品位矿石 研究和发展 空气流量

目前金属和非金属矿山工业的趋势是日益增加处理低品位矿石的吨位,从而对在浮选回路中逐渐地使用大型浮选机越来越感兴趣。由于大型浮选机的研制和评价的费用比较高,因此建立一个由现有的小型浮选机的经验能按比例放大出在现场变动最小的同类大型浮选机的合理的依据是十分重要的。本文回顾了用把小型浮选机的经验转换成确定大型1000英尺~3(28.3米~3)自吸气浮选机研究和发展的方法。这篇文章也将回顾指导这个按比例放大的槽内流体动力学原理、槽子表面情况和泡沫排除的考虑,而且也将总结样机的工业试验。

The current trend in the metals and non-metallic mining industries is to increasingly increase the tonnage of low grade ore to be increasingly interested in the gradual use of large flotation machines in flotation circuits. Due to the relatively high cost of developing and evaluating large flotation machines, it is important to establish a reasonable basis for scaling up the experience of existing small flotation machines to the same type of large-scale flotation machines with the smallest changes in the field . This article reviews ways to transform the experience of a small flotation machine into research and development to determine the size of a large 1000 ft3 (28.3 m3) self-priming flotation machine. This article will also review the hydraulics that guide this scaled-up tank, the tank surface conditions, and foam exclusion considerations, and will also summarize industrial prototype testing.