| 充气机械搅拌式浮选机放大方法的研究 |
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| 引用本文： | 沈政昌,杨丽君,陈东.充气机械搅拌式浮选机放大方法的研究[J].有色金属(选矿部分),2007(3):32-37,31. |
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| 作者姓名： | 沈政昌 杨丽君 陈东 |
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| 作者单位： | 1. 北京科技大学,北京,100083;北京矿冶研究总院,北京,100044
2. 北京矿冶研究总院,北京,100044 |
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| 摘 要： | 随着世界经济及国内经济的持续迅速增长,浮选机大型化已成为必然趋势,但浮选机放大方法依然以经验放大为主。本文从充气机械搅拌式浮选机的原理入手,从形状和动力学两个方面研究了充气搅拌式浮选机的放大方法,其中:槽体的放大因子为槽体截面积与叶轮直径的比值,放大规则为SD=a1Vb1;叶轮形状的放大因子为叶轮直径,放大规则为D=a2Vb2;叶轮搅拌强度的放大因子为叶轮搅拌雷诺数,其放大规则为J=a5Vb5;浮选机动力学的放大因子为S/D倍的叶轮线速度,其放大规则为S/DV=a6Vb6。该放大方法也可用于自吸气机械搅拌式浮选机,对大型浮选机放大理论的研究有一定的促进作用。
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| 关 键 词： | 放大 浮选机 槽体 叶轮 浮选机动力学 |
| 文章编号： | 1671-9492（2007）03-0032-06 |
| 修稿时间： | 2007-02-01 |
RESEARCH ON SCALE-UP PNEUMATIC FLOTATION MACHINE |
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| Authors: | SHEN Zhengchang YANG Lijun CHEN Dong |
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| Affiliation: | 1. University of Science and Technology Beijing, Beijing 100083,China; 2. Beijing General Research Institute of Mining and Metallurgy, Beijing 100044,China |
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| Abstract: | Defined by the characteristics of the ore,made a research of separation flotation of high arsenic copper zinc in Guangxi somewhere.Makinging the flowsheet of decarbonization,prioring flotation of copper and bulk flotation of zinc and sulfide,using FN as depressor.The flowsheet settled the question of copper zinc concentration contenting high arsenic.The experimental research indicated that copper concentrate as arsenic content of 0.26%,and zinc concentrate as arsenic content of 0.18%.The recovery ratio of the copper concentrate was obtainded 80.23%,maenwhile,the zinc concentrate was 90.24% respectively. |
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| Keywords: | scale-up flotation machine cell impeller dynamic |
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