An investigation on the breakage behavior of olivine sand particles: An attainable region technique

Abstract

This study investigates the breakage behavior of olivine sand particles to identify optimal operating parameters to get products in three different define particle size classes. This was achieved by a Los Angeles abrasion test with different numbers of steel balls (up to 12), weights of steel balls (up to 0.441 kg), and different grinding durations (up to 200 mins). The data obtained were then analyzed using a model-free and equipment-independent attainable region (AR) technique. The findings revealed that the required product fineness is a function of the grinding time, numbers and weight of steel balls, and feed material size. Using 9 steel balls of 0.441 kg, a higher mass fraction of materials in the fine-sized class (−75 μm) was obtained after grinding for 200 mins. The AR technique proved to be a practical approach to optimize olivine particle size during breakage, with a potential application in sustainable soil stabilization projects.