Abstract

In this study, limestone samples were investigated in terms of grinding product particle size distribution (PSD) differentiations after microwave treatment. Initially, collected limestone samples (a total of 58 sample) were crushed and prepared for microwave treatment. In order to observe the effect of microwave treatment, 58 of these samples were ground directly while the other 58 samples were objected to microwave treatment (5 min, 180 W) prior to the grinding. In this paper, size parameters (D₁₀, D₅₀, D₉₀, D₃₂, and D₄₃) and their corresponding differentiations after microwave treatment were evaluated. As regards to the finding of this study, microwave treatment prior to grinding can be claimed to ease the grinding, and finer size distribution can be obtained especially for lower Fe₂O₃ content samples. It was also found out the fact that MgO and CaO content of samples have influenced the abovementioned PSD differentiation to some extent.

摘要

在这项研究中，研究了石灰石样品在微波处理后研磨产品粒度分布 (PSD) 的差异。最初，收集的石灰石样品（总共 58 个样品）被粉碎并准备用于微波处理。为了观察微波处理的效果，将其中58个样品直接研磨，而其他58个样品在研磨前进行微波处理（5分钟，180 W）。在本文中，尺寸参数（D ₁₀、D ₅₀、D ₉₀、D ₃₂和 D ₄₃) 及其在微波处理后的相应差异进行了评估。关于这项研究的发现，可以声称研磨前的微波处理可以使研磨更容易，并且可以获得更精细的尺寸分布，特别是对于较低 Fe ₂ O ₃含量的样品。还发现样品中的MgO和CaO含量在一定程度上影响了上述PSD分化。