...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Resources, Conservation and Recycling >Reduction and utilization of coal mine waste rock in China: A case study in Tiefa coalfield
【24h】

Reduction and utilization of coal mine waste rock in China: A case study in Tiefa coalfield

机译：中国煤矿waste石的减少与利用-以铁法煤田为例

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In China, coal mine waste rock (CMWR) produced during coal mining and processing is still increasing significantly as a result of coal production which has huge environmental impact. CMWR reduction and utilization is a major issue for coal enterprises and government to reduce the surface footprint and the public environmental impact. Tiefa coalfield, an old coalfield with 60 years of coal exploitation, was selected as a case to study the methods to minimize the environmental impacts of CMWR piles in a short period. We argue that a systematic design on CMWR utilization is needed on the basis of a usage evaluation which takes consideration of CMWR source, compositions, and proximate analysis. Mine design is crucial and the base for reducing the CMWR generation at the headstream. Placing roadway into coal seam rather than rock, panel optimization, and parametric analysis for mining technique were conducted in Tiefa coalfield. A promising technology of CMWR backfill under the ground was employed with a resultant increase of coal recovery rate. The surface CMWR recycling depends on brick making, electricity generating, and rehabilitation of subsided land. The practice of the presented methods indicates that the CMWR piles on Tiefa coalfield may disappear in 3 years, which could significantly reduce the environmental impacts of CMWR dumps. The technologies conducted in Tiefa coalfield developed a model of CMWR reduction and utilization for Chinese coal mines.
机译：在中国，由于煤炭生产对环境的巨大影响，煤矿开采和加工过程中产生的煤矿废石（CMWR）仍在显着增加。 CMWR的减少和利用是煤炭企业和政府减少地面足迹和公共环境影响的主要问题。选择了拥有60年煤炭开采历史的老煤田提法煤田作为案例，研究在短期内将CMWR桩对环境的影响降至最低的方法。我们认为，在使用评估的基础上，需要对CMWR利用率进行系统设计，该评估考虑了CMWR的来源，成分和最近的分析。矿山设计至关重要，也是减少源头CMWR产生的基础。在Tiefa煤田进行了将巷道放到煤层而不是岩石中，进行面板优化和采矿技术的参数分析。采用了一种有前景的地下CMWR回填技术，从而提高了煤的回收率。 CMWR的表面回收取决于制砖，发电和塌陷土地的修复。所提方法的实践表明，铁法煤田的CMWR桩可能会在3年内消失，这可以显着减少CMWR垃圾场对环境的影响。在Tiefa煤田进行的技术为中国煤矿开发了CMWR减少和利用的模型。

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