Ezperimental of pumping gangue into the mined-out area

摘要：

In order to find solutions to the ground emission of gangue and realize the gangue pumping into the mined-out area, the underground experimental research is conducted in Shandong Huafeng Coalmine. Through the orthogonal experiment, the research deals with the effect of crushed particle size, mass concentration, and the amount of cement added on the pumping, filling, and the cost. As suggested by the experiment, the particle size of gangue has a significant effect on the pumpability of gangue-paste, and the amount of cement added obviously affects the compressive strength of the gangue-paste and the filling cost. According to the best experimented combination of particle size, the amount of cement added and mass concentration, this experimental system brings about an effective filling of the conventional mining-out area, and furthermore, provides a new approach for the disposal of gangue.

关键词： gangue pumping orthogonal ezperiment filling mined-out area underground

作者: Li Jian-ping Du Chang-long Teng Guang-lin

作者单位: College of Electromechanical Engineering, China University of Mining and Technology, Xuzhou 221116, Xinwen Coal Mining Group Co., Ltd, Taian, 271129, China

会议类型: 国际会议

会议名称: The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)

会议地点: 徐州

会议语种:英文

页码: 1-6

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）