Ore mechanical properties, feed size distribution and optimization of rod mill media size were conducted, and moreover, compared with the outcome of mill grinding in alumina ore-dressing plant. The results indicate that the selective grinding of hard and tough ore samplecan be achieved, and fine mud is easy to come into being, feed size is coarse and the fraction of less than 0.074 mm accounts for 2.98%, compared 80 mm rod medium calculated by semi-theory formula with previous 100 mm used in plant, the grinding fineness (fraction of less than 0.074 mm, γ<0.074 mm) increases by 6.51%, fraction of less than 0.9 mm (γ<0.9 mm) increases by 4.00%, production capacity of less than 0.9 mm (q<0.9 mm) increases by 4.76%. Rod-diameter-precision has obvious effects on the raise of production capacity and grinding fineness of rod mill.
XIAO Qing-fei WANG Guo-qiang WANG Xiao-jiang SHEN Chuan-gang YANG Fang
. Optimization of Rod Mill Media Size in Alumina Ore-dressing Plant[J]. The Chinese Journal of Process Engineering, 2017
, 17(2)
: 367
-370
.
DOI: 10.12034/j.issn.1009-606X.216284
[1] Abouzeid A Z M, Fuerstenau D W. Flow of materials in rod mills as compared to ball mills in dry systems[J]. International Journal of Mineral Processing, 2012, s 102–103(5):51-57.
[2] 段希祥．论棒磨机在磨碎流程中的应用[J]．有色金属(选矿部分),1979 ,007(4):36-40．
[3] 肖庆飞, 康怀斌, 肖珲等. 碎磨技术的研究进展及其应用[J]. 铜业工程, 2016,(1):15-27.
[4] Xue C H, Dong T L. The Application of Rod Mill on Two-step Grinding of Tin-Copper Sulfide Ore[J]. Yunnan Metallurgy, 2015,44(10):21-25.
[5] Luo C M, Xiao Q F, Duan X X. Effect of coarse grinding rod diameter on grinding fineness of mid-and-low grade phosphate ore[J]. Industrial Minerals & Processing, 2013,(3):11-14.
[6] Cilliers J J, Austin L G, Leger P, et al. A method of investigating rod motion in a laboratory rod mill[J]. Minerals Engineering, 1994, 7(5–6):533-549.
[7] Ahmadi R, Hashemzadehfini M, Parian M A. Rapid determination of Bond rod-mill work index by modeling the grinding kinetics[J]. Advanced Powder Technology, 2013, 24(1):441–445.
[8] ZHANG Chun xiao Mining Equipment Design Institute. Grinding Test and Parameter Selection of Rod Mill[J]. Nonferrous Metallurgical Equipment, 2014,(3):30-32.
[9] Guterman T. Analysis of efficiency of grinding in ball and rod mills dependably on contents of fine particles in feed[J]. Agh Journal of Mining & Geoengineering, 2012,36(4):17-29.
[10] Zeng Y. Effects of mill feed size and rod charges on grinding performance[J]. Powder Technology, 1992, 69:119–123.
[11] 杨志强, 肖柏林, 高谦,等. 基于金川棒磨砂充填料开发新型充填胶凝材料的试验研究[J]. 有色金属:矿山部分, 2014, 66(5):65-68.
[12] 王彩霞, 肖庆飞, 段希祥. 棒径半经验公式的精确化验证与应用研究[J]. 矿业研究与开发, 2015,(03):80-82.
[13] 戴世武. 选矿厂合理装补棒磨磨矿介质的实践[J]. 有色金属设计, 2007, 34(3):12-15.
[14] 刘翔, 张一敏, 边颖,等. 湖北某含钒石煤在棒磨机中的选择性磨矿研究[J]. 湿法冶金, 2014,(5):335-338.
[15] 魏新超, 韩跃新, 印万忠,等. 铝土矿选择性磨矿的必要性与可行性研究[J]. 金属矿山, 2001, 1(10):29-31.
