The purpose of this study was to investigate the dry grindability of calcite powders in a vertically and horizontally orientable laboratory batch type stirred mill. The experimental results were evaluated using stress intensity analysis. The performance was also compared in terms of mill orientation. The results showed that the d₅₀ values decreased with increasing stress energy down to a certain point and then increased for both milling orientations. Even though the optimum stress energies for both vertical and horizontal orientations were in the range of 1*10⁻³ to 5*10⁻³ Nm at 750 and 1500 kJ/kg energy consumption, the product size was finer for the horizontal orientation at the same stress energy value. Additionally, to the best of the authors’ knowledge, this is the first study to compare mill orientation (vertical vs. horizontal) for the same mill and under the same test conditions.

这项研究的目的是研究在垂直和水平方向的实验室间歇式搅拌磨机中方解石粉的干磨性。使用应力强度分析评估了实验结果。还根据轧机方向对性能进行了比较。结果表明，d ₅₀值随着应力能的增加而降低到一定点，然后在两个铣削方向上都增加。即使垂直和水平方向的最佳应力能量都在1 * 10 ^-3到5 * 10 ^-3的范围内 在能量消耗为750和1500 kJ / kg时为Nm，在相同的应力能量值下，水平方向的产品尺寸更小。此外，据作者所知，这是第一个比较相同轧机和相同测试条件下轧机方向（垂直与水平）的研究。