Effects of Grinding Aids Glycerol and Sodium Pyrophosphate on Kinetic Parameters of Quartz Grinding

被引：0

作者：

Wang Z.-H. ^{[1
]}

Tian P.-C. ^{[1
]}

Mao Y. ^{[1
]}

机构：

[1] School of Resources & Civil Engineering, Northeastern University, Shenyang

来源：

Dongbei Daxue Xuebao/Journal of Northeastern University | 2023年 / 44卷 / 07期

关键词：

grinding aids; grinding speed; kinetic parameters of grinding; particle size distribution; quartz;

D O I：

10.12068/j.issn.1005-3026.2023.07.013

中图分类号：

学科分类号：

摘要：

The effects of two grinding aids, glycerol and sodium pyrophosphate, on the grinding kinetic behavior of 0. 074 ~ 2 mm quartz pure mineral in the material were systematically investigated by using batch wet ball milling experiments. Based on the grain size distribution characteristics of grinding products, m order grinding kinetic models of quartz in the grinding process were established. The influence of the amount of grinding aid on the kinetic parameters and grinding speed of quartz was analyzed. The results show that the quartz grinding process conformes to the m order grinding dynamics model. With the increase of the dosage of glycerol and sodium pyrophosphate, the kinetic parameter k decreases first and then increases, and the kinetic parameter m increases first and then decreases. The maximum value is reached when the dosage of grinding aids is 0. 3% ~ 0. 5% . Under the same grinding conditions, the grinding speed of 0. 45 ~ 1 mm particle size is the maximum. © 2023 Northeastern University. All rights reserved.

引用

页码：1009 / 1018

页数：9

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