湿法球磨工艺参数对硅酸锆平均粒度的影响

对锆英砂湿法球磨加工中存在的问题进行了概述和分析,研究了湿法球磨中的球磨机转速、研磨时间、浆料浓度、填充率、球料比等工艺参数对硅酸锆的平均粒度的影响规律。研究结果表明,增加球磨机的转速,延长球磨时间,都会使研磨出的硅酸锆粒度变得更小,且硅酸锆平均粒度变化曲线都呈初期变化大,超过拐点后变化减缓的趋势。填充率和浆料浓度对硅酸锆平均粒度的影响类似,随着填充率或浆料浓度的不断增加,研磨出来的硅酸锆粒度越小,但总体上下降幅度不大,其变化幅度的差别主要来自于罐中水和空气的比例不同。球料比对硅酸锆的平均粒度影响显著,当球料比在2∶1到6∶1的范围内变化时,随着球料比增大,研磨出来的硅酸锆的平均粒度由6.55μm下降到1.82μm。

Influence of Wet Milling Process Parameters on the Zirconium Silicate Average Particle Size

The problems which existed during the wet ball milling process of zircon sand were summarized and analyzed, and the influences of wet milling process speed, grinding time, slurry concentration, filling rate, ball feed ratio on the average particle size of zirconium silicate were also studied. The results show that increasing the speed of the ball mill and extending the grinding time will lead the granularity of zirconium silicate which is in the polishing smaller. But the high speed and the long time will lead income into a declining trend when the granularity of zirconium silicate is in the thinning process. Fill rate and slurry concentration have a similar impact on the average particle size of zirconium silicate, with the increasing of fill rate or slurry concentration, the grinding-out of zirconium silicate particle size is smaller, but the overall decline is not great, the difference of rangeability mainly comes from the different pro- portion of water and air in the jar. The ball feed ratio has a significant impact on the average particle size of zirconium silicate. The ball feed ratio changes from 2：1 to 6：1 range, with the ball feed ratio becomes large, the grinding-out of the average zirconium silicate particle size becomes smaller.