摘要：为了探讨搅拌叶轮转速、矿浆浓度和介质类型对GN8型搅拌磨机能量利用率的影响,以搅拌叶轮转速、矿浆浓度(矿浆中矿粉质量分数)和介质类型为变量进行能量利用率研究。结果表明:在矿浆浓度相同的情况下,不论磨矿介质是刚玉球还是氧化锆球,搅拌叶轮转速为1 160 r/min时的能量利用率均低于870 r/min时的;在搅拌叶轮转速相同的情况下,以刚玉球为磨矿介质,矿浆浓度为40%时的能量利用率高于矿浆浓度为60%时的,以氧化锆球为磨矿介质时,结果恰好相反;在搅拌叶轮转速相同的情况下,当矿浆浓度为40%时,以刚玉球为磨矿介质时的能量利用率高于以氧化锆球为磨矿介质时的,当矿浆浓度为60%时,结果恰好相反。

关键词：卧式搅拌磨机；叶轮转速；矿浆浓度；介质类型；能量利用率

Abstract：To investigate the effect of stirrer discs speed,slurry concentration and grinding media type on energy efficiency of GN8 stirred mill,the energy efficiency was studied by taking stirrer discs speed,slurry concentration and grinding media type as variables. The results show that when the slurry concentration is the same,the energy efficiency with stirrer discs speed of 1 160 r/min is lower than that with stirrer discs speed of 870 r/min,no matter the grinding medium is corundum ball or zirconia ball. When the stirrer discs speed is constant and the corundum ball is taken as grinding media,the energy efficiency with slurry concentration of40% is higher than that with slurry concentration of 60%,while the result is the opposite when the zirconia ball is taken as grinding media. When the stirrer discs speed is constant,the energy efficiency taking the corundum ball as grinding medium is higher that of taking the zirconia ball as grinding medium with slurry concentration of 40%,while the result is the opposite with the slurry concentration of 60%.

Keywords: horizontal stirred mill；disc speed；slurry concentration；grinding media；energy efficiency