...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Metalurgia >NEW TECHNOLOGY OF COAL'DRYING
【24h】

NEW TECHNOLOGY OF COAL'DRYING

机译：煤炭干燥新技术

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The purpose of this work is the presentation of a new solution, with special technico-economic performances, actually verified, regarding the drying of the romanian inferior coals, such as the wooden brown coals -lignites - with PC, fluctuating between 8.5 and 12 MJ/kg (that is between 2,000 and 2,850 kcal/kg), the humidity fluctuating between 25 and 40 percent and with a sulphur combustible content reported to the anhydrous mass ("anh") comprised between 1 and 6 percent. In order to reckon, it is thought a medium coal, with the granulation between 0-30 mm, with the initial humidity W,'=30 percent, the ashes content A~(anh)=45 percent reported to the drying mass, sulphur S_c~(anh)=4 percent, volatile V~(anh)=35 percent, having Pc_1=2.500 kcal/kg. Another lignites having compositions fluctuating around the previous ones, will lead to similar economic consequences; the reckoning will be remade without difficulty, and the assessments will be precise enough. The coal is provided with the 0-30 mm granulation. By riddling and crushing, the granules will have maximum 10 mm. which is convenient for the introduction into the drier, the respective bulk having a porosity of 37 percent (m=0,37). The reckoning regarding the drier will be made for a capacity of 10 t/h coal, with the humidity of 30 percent. with a medium density of 0,71 t/m~3 reducing the humidity" to 5 percent; the reckoning will be also remade in the case of reducing the humidity from 30 to 20 percent. Therefore, from the drier it will be pulled out ( 0.30-0.05)* 10=2.5 t/h water, and in the second case, (0.30-0.20)*10=1.0t/h water.
机译：这项工作的目的是提出一种新的解决方案，该解决方案具有经过实际验证的特殊技术经济性能，涉及干燥罗马尼亚劣质煤（例如木制棕褐煤-轻木）的PC，其波动范围为8.5 MJ至12 MJ / kg（2,000和2,850 kcal / kg之间），湿度在25％和40％之间波动，据无水物质（anh）测得的硫可燃物含量为1-6％。为了计算，据认为是中粒煤，颗粒度在0-30 mm之间，初始湿度W''= 30％，灰分含量A〜（anh）= 45％，以干燥质量计，硫磺S_c_（anh）= 4％，挥发性V_（anh）= 35％，Pc_1 = 2.500 kcal / kg。另一个褐煤的成分在之前的波动附近，将导致类似的经济后果;重新计算将很容易，并且评估将足够精确。给煤提供0-30mm的颗粒。通过打碎和粉碎，颗粒将最大为10毫米。这对于将其引入干燥机是很方便的，其各自的孔隙度为37％（m = 0.37）。干燥机的推算能力为每小时10吨煤，湿度为30％。密度为0.71 t / m〜3，将湿度降低至5％;如果将湿度从30％降低至20％，也将重新计算。因此，将从干燥机中将其拉出（0.30-0.05）* 10 = 2.5 t / h水，在第二种情况下，（0.30-0.20）* 10 = 1.0t / h水。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号