球料比对球磨过程中锆英砂破碎行为的影响  

Effect of Ratio of Ball to Powder on the Crushing Behavior of Zircon Sand during Ball milling

作　　者：温朝江 唐小松 孙新雅 杨跃辉[2] 苑少强[2] Wen Chaojiang;Tang Xiaosong;Sun Xinya;Yang Yuehui;Yuan Shaoqiang(Tangshan Jinghua Pipeline Making Co.,Ltd,Tangshan 063020,China;Key Lab of Hebei Intelligent Equipment Digital Design and Process Simulation,Tangshan University,Tangshan 063000,China)

机构地区：[1]唐山京华制管有限公司,河北唐山063020 [2]河北省智能装备数字化设计及过程仿真重点实验室,唐山学院,河北唐山063000

出　　处：《北华航天工业学院学报》2023年第2期16-18,共3页Journal of North China Institute of Aerospace Engineering

基　　金：唐山市科技创新团队培养计划项目(20130209D);河北省钢管表面保护涂层技术创新中心(筹建)项目(SG2021051)。

摘　　要：对锆英砂进行不同球料比的球磨实验,球磨时间为50小时。利用扫描电子显微镜观察粉体的形貌特征,在激光粒度仪上检测其粒度分布,然后利用分形理论对粉体的球磨过程进行分析。结果表明:随着球料比的增加,分形维数先快速上升,此后逐渐趋缓,表明增加球料比有利于粉体颗粒的破碎,但效果逐渐减弱。同时结果也表明,提高球料比和增加球磨时间,均能使粉体中细小颗粒增加,阻碍了大颗粒的破碎,因此导致粉体粒度分布的离散度增加。The zircon sand was ball milled for 50h in different ratios of ball to powder.The scanning electron microscope and laser particle size analyzer were used to investigate the morphology and particle size distribution of zircon flour produced by trial ball mill.And then,fractal theory was adopted to analyze the ball milling process.The experimental results demonstrate that the fractal dimension goes up quickly at the beginning but increases gently later with the increasing of the ratio of ball to powder.This phenomenon shows that the higher ratio of ball to powder helps the crushing of powders while the effects of it weaken as time going.The experiments also show that increasing the milling time and ratio of ball to powder raise the content of finer zircon flour,which hinders the crushing of larger particles,resulting in the augment of dispersion for particles distribution.

关 键 词：锆英砂 粒度分布 球料比 分形维数 

分 类 号：TD951[矿业工程—选矿]