• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Eighth International Conference on Tailings and Mine Waste '01, Jan 16-19, 2001, Fort Collins, Colorado, USA >Tailings dam penstock decants in the South African mining industry
【24h】

Tailings dam penstock decants in the South African mining industry

机译：南非采矿业的尾矿坝压力管道倾析

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

The preferred and most often implemented method of removing free water from the top of operating tailings dams in South Africa is by penstock decants linked to a buried pipeline which in turn discharges at the outer edge of the tailings dam. This paper initially documents the historical background to the original selection of this method of capturing and returning free water back to the plant. It then deals with the various types of penstock decants in use in South Africa from the standard single decant structure capable of decanting at the rate of approximately 0.30 m~3/sec, to special towers capable of decanting at a rate of 2.1 m~3/sec. Operational issues are discussed including safety controls, access and monitoring. Also presented are the mechanics of past failures and the changes in design which have taken place over time to improve the safety and performance of these structures. The paper concludes with the latest developments in the design, operation, monitoring and closure of penstock decants in Southern Africa. These new developments include the use of video camera inspections not only for monitoring but for the sealing of penstock decants under operational conditions.
机译：在南非，从运营中的尾矿坝顶部去除游离水的首选方法是最常用的方法，该方法是通过与埋在地下的管道相连的压力管道倾析物，这些管道又在尾矿坝的外边缘排放。本文最初记录了这种选择的方法的历史背景，该方法最初是选择将自由水捕获并返回工厂的方法。然后，它处理了南非使用的各种压力管道倾析器，从能够以大约0.30 m〜3 / sec的速度倾析的标准单倾器结构到能够以2.1 m〜3的速度倾析的特殊塔架/秒。讨论了操作问题，包括安全控制，访问和监视。还介绍了过去的故障机理以及随着时间的流逝而进行的设计更改，以提高这些结构的安全性和性能。本文以南部非洲压力管道倾析器的设计，操作，监控和封闭方面的最新进展作为结尾。这些新的发展包括将摄像机检查不仅用于监视，而且用于在操作条件下密封压力容器倾析器。

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