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

doi:10.12068/j.issn.1005-3026.2023.07.013

Abstract

Abstract: The effects of two grinding aids， glycerol and sodium pyrophosphate， on the grinding kinetic behavior of 0.074~2mm 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 0.45~1mm particle size is the maximum.

Key words: quartz; grinding aids; particle size distribution; kinetic parameters of grinding; grinding speed

CLC Number:

TD921

WANG Ze-hong， TIAN Peng-cheng， MAO Yong. Effects of Grinding Aids Glycerol and Sodium Pyrophosphate on Kinetic Parameters of Quartz Grinding[J]. Journal of Northeastern University(Natural Science), 2023, 44(7): 1009-1018.

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