摘要
为验证纳米复合陶瓷球应用于高硅、高硬度铁矿石的可行性,以马钢张庄矿二段球磨给矿为原料,开展了不同粒级陶瓷球配比试验、全陶瓷球及陶瓷球+钢球试验、球磨机浓度及充填率等工艺条件试验。试验结果表明:在陶瓷球ϕ30 mm、ϕ25 mm、ϕ20 mm配比为20%∶60%∶20%、充填率为40%、球磨浓度为70%的条件下,陶瓷球、陶瓷球+钢球磨矿产品粒度分布中-0.023 mm含量下降幅度分别达31.98%,21.29%,试验室条件下的陶瓷球或陶瓷球+钢球磨产品粒度分布中能有效减少过磨粒级的产生,降低球磨机电耗,可使用陶瓷球替代钢球进行工业生产。
In order to verify the feasibility of applying nano-composite ceramic balls to high-silicon and high-hardness iron ore,taking the second-stage ball milling feed of Masteel Zhangzhuang Mine as the raw material,the ratio test of different grain size ceramic balls,the test of all ceramic balls and ceramic balls+steel balls,the test of ball mill concentration and filling rate were carried out.The experimental re⁃sults show that under the condition of ceramic ballϕ30 mm、ϕ25 mm、ϕ20 mm ratio of 20%∶60%∶20%,fill⁃ing rate of 40%and ball milling concentration of 70%,the content of-0.023 mm in the particle size distribu⁃tion of ceramic ball and ceramic ball+steel ball milling products decreases by 31.98%and 21.29%,respec⁃tively.The particle size distribution of ceramic balls or ceramic balls+steel ball milling products under labo⁃ratory conditions can effectively reduce the generation of over-abrasive particles and reduce the power con⁃sumption of ball mills.Ceramic balls can be used instead of steel balls for industrial production.
作者
张晓伟
潘猛
齐美超
王琦
ZHANG Xiaowei;PAN Meng;QI Meichao;WANG Qi(Anhui Masteel Zhangzhuang Mining Co.,Ltd.)
出处
《现代矿业》
CAS
2024年第1期172-175,共4页
Modern Mining
关键词
陶瓷球
高硅难磨铁矿
充填率
ceramic ball
high silicon refractory iron ore
filling rate
