排序方式: 共有38条查询结果,搜索用时 31 毫秒
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石灰石是燃煤流化床中常用的钙基脱硫剂。选择和添加合适的助剂以改善石灰石颗粒的孔结构是提高CaO转化率和脱硫效率的一个重要途径。本文借助于压汞仪和SEM扫描电镜从孔结构参数和CaO颗粒表面的可视化两个方面研究了几种特定的添加剂对煅烧石灰石孔结构的影响。 相似文献
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According to the gas observational data, the gas spatiotemporal distributions were analyzed in full-mechanized top coal caving
in thick, hard and high-gas seams. The factors influencing gas effusion were researched and the rules of gas effusion under
the special conditions were educed, for example, the underground pressure, the output intensity, the working surface advancement,
and the amount of ventilation in the working face on gas effusion, and so on. The research results can be the base of forecasting
gas effusion and controlling gas in these special conditions, which can guarantee the safety of highly efficient full-mechanized
top coal caving.
Supported by the National Nature Science Fund (50574072); the Shaanxi Nature Science Fund (2007E230) 相似文献
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粉煤灰添加剂对石灰石脱硫的作用 总被引:2,自引:0,他引:2
许满贵 《西安矿业学院学报》1998,18(2):149-153
论述了在石灰石中加入粉煤灰等助剂后的脱硫效率,并黛助X衍射、孔结构和颗粒表面的微构着手,探讨了粉煤灰添加剂对石灰石脱硫的作用,得出的结论有助于人工合成脱硫剂时肋剂的选择与添加。 相似文献
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