Experimental study on the treatment of rock particles in coal mine water

摘要：

　　In mine water drainage, rock particles could easily block the drainage pumps and pipelines, which lead to drainage inefficiency, thereby greatly influencing coal mine benefits.The coagulation and orthogonal experiments were performed with the following four factors and the best results obtained: types of coagulant (PAC、 PFS) and its dosage, dosage of coagulant booster PAM and its dosing time.There are four stages in the preparation of simulated mine water.a 25g rock particles is poured into pure water of 500ml to make simulated mine water.The speeds and time of stirring are 450r/min 3min, 350r/min30s, 120r/min 90s and 60r/min 3min.The coagulant PAC is 7.5mg.The coagulant booster PAM is 0.4rng.The precipitation rate of rock particles is 99.70%.

关键词： coal mine mine water rock grains treatment

作者: WeiZhenqiang Feng Youli Gao Bo Hou Yajing

作者单位: School of Resources and Environment, Henan Polytechnic University, Jiaozuo, 454003

会议类型: 国际会议

会议名称: The 34th International Conference on Ground Control in Mining (ICGCM) 2015(34届国际采矿岩层控制会议)

会议地点: 焦作

会议语种:英文

页码: 49-51

在线出版日期: 2015-10-17（万方平台首次上网日期，不代表论文的发表时间）