地浸采铀钻孔内置过滤器反向填砾方法研究
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摘要
地浸采铀钻孔采用内置过滤器式结构时,常规填砾方法(正向填砾)无法完成填砾,这对溶浸液中悬浮物的过滤极为不利。针对此问题,设计了一套反向填砾装置,通过在内置过滤器底部安装单向填砾阀来实现对内置过滤器外围的填砾,并进行了可行性试验与现场工业试验。反向填砾装置对内置过滤器式钻孔结构具有重要意义。
Currently the drilling hole at in-situ leaching uranium adopts the structure of built-in filter,gravel could not be filled in the periphery of the filter by this structure,and it is resulted in adverse to the filtration of suspended particles in the pregnant solution.To solve this problem,a set of reverse gravel filling device is designed.By installing the reverse gravel filling device at the bottom of the filter,it can realize to fill in the periphery of the filter,and the feasibility test and field industrial test were performed.The reverse gravel filling device has great significance to structure of built-in filter.
Currently the drilling hole at in-situ leaching uranium adopts the structure of built-in filter,gravel could not be filled in the periphery of the filter by this structure,and it is resulted in adverse to the filtration of suspended particles in the pregnant solution.To solve this problem,a set of reverse gravel filling device is designed.By installing the reverse gravel filling device at the bottom of the filter,it can realize to fill in the periphery of the filter,and the feasibility test and field industrial test were performed.The reverse gravel filling device has great significance to structure of built-in filter.
引文
[1]胡柏石,谭亚辉,李建华,等.蒙其古尔钻孔结构及施工工艺设计[R].北京:核工业北京化工冶金研究院,2012:6-8.
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[4]张勇,张青林,吉宏斌,等.蒙其古尔矿床施工管理办法[R].新疆:新疆天山铀业有限公司,2012:33-34.
[2]王海峰,苏学斌.美国地浸铀矿山钻孔成井工艺及井场运行[M].北京:原子能出版社,2010:112-118.
[3]梁其深,秦昊,胡柏石,等.地浸采铀失效钻孔修复技术研究[J].铀矿地质,33(1):55-58.
[4]张勇,张青林,吉宏斌,等.蒙其古尔矿床施工管理办法[R].新疆:新疆天山铀业有限公司,2012:33-34.