Abstract

The change in surface wettability of long-flame coal with little metamorphic development on first contact with air is analyzed. The wetting liquids considered are filtrates of cement suspensions of different concentrations, which are used to seal the external contour of mine workings. Wetting by water and cement solutions is better for surface-oxidized coal. The results indicate that cement suspensions may be used to reduce the oxidative activity of the coal bed’s external contact surface.

中文翻译：

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水泥溶液对煤的氧化和表面润湿性

摘要

分析了初次接触空气时变质发育较少的长焰煤表面润湿性的变化。所考虑的润湿液是不同浓度的水泥悬浮液的滤液，用于密封矿山工作的外部轮廓。用水和水泥溶液润湿表面氧化煤效果更好。结果表明，水泥悬浮液可用于降低煤层外接触面的氧化活性。