The Diatomite Grinding Technology Concept for the Protection of Diatomite Shells and the Control of Product Grading

Materials Pub Date : 2024-07-24 DOI:10.3390/ma17153662

A. Stempkowska, T. Gawenda, Krzysztof Smoroń

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Abstract

Diatomite deposits in Poland are located in the Podkarpackie Voivodeship, and the only active deposit is in Jawornik Ruski. Therefore, it is a unique material. Improved rock processing methods are constantly in demand. In the research presented here, we have used research methods such as X-ray diffraction (XRD), scanning electron microscope (SEM), particle shape analysis, and appropriate sets of crushing machines. Diatomite comminution tests were carried out on test stands in different crushers (jaw crusher, hammer crusher, high-pressure roller press, ball mill) using different elementary crushing force actions: crushing, abrasion, and impact, occurring separately or in combination. The machines were tested with selected variable parameters to obtain products with a wide range of grain sizes ranging from 0 to 10 mm. The ball mill (yield 87%, system C3) and the hammer crusher with HPGR (high-pressure grinding roller) (yield 79%, system D2 + D3) have the greatest impact on diatom shell release and accumulation in the finest 0–5 μm and 5–10 μm fractions. For commercial purposes, it is important to obtain very fine fractions while keeping the shells undisturbed.

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保护硅藻土贝壳和控制产品分级的硅藻土研磨技术理念

波兰的硅藻土矿床位于波德卡尔帕克省，而唯一活跃的矿床位于雅沃尼克鲁斯基省。因此，这是一种独特的材料。人们一直需要改进岩石加工方法。在本文介绍的研究中，我们使用了 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、颗粒形状分析和适当的破碎机等研究方法。硅藻土粉碎试验是在不同破碎机（颚式破碎机、锤式破碎机、高压辊压机、球磨机）的试验台上进行的，使用了不同的基本破碎力作用：碾压、磨损和冲击，这些作用可单独发生，也可组合发生。这些机器通过选定的可变参数进行测试，获得的产品粒度范围很广，从 0 毫米到 10 毫米不等。球磨机（产量为 87%，系统 C3）和带 HPGR（高压碾压辊）的锤式破碎机（产量为 79%，系统 D2 + D3）对硅藻壳的释放和最细 0-5 μm 和 5-10 μm 部分的积累影响最大。出于商业目的，在获得极细馏分的同时保持外壳不受干扰非常重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Materials

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