某矿尾砂胶结充填系统运行分析  

Operation Analysis of Cemented Tailings Filling System in a Mine

作　　者：邓代强 彭亮 DENG Daiqiang;PENG Lian(Institute of Mining Engineering, Guizhou Institute of Technology, Guiyang 550003, Guizhou, China;Changsha Institute of Mining Research Go., Ltd.,Changsha 410012, Hunan, China;National Engineering Research Center for Metal Mining, Changsha 410012, Hunan, China)

机构地区：[1]贵州理工学院矿业工程学院,贵州贵阳550003 [2]长沙矿山研究院有限责任公司,湖南长沙410012 [3]国家金属采矿工程技术研究中心,湖南长沙410012

出　　处：《中国钨业》2017年第4期16-19,共4页China Tungsten Industry

基　　金："十二五"国家科技支撑计划项目(2013BAB02B04)

摘　　要：为更好地给矿床开采提供安全的工作场所,实现矿山绿色环保及可持续发展,进行了某矿充填系统的设计与应用研究。结果表明:全尾砂浆经气动液化搅拌均匀后,与水泥混合坍落度约250~270 mm、浓度为70%~72%的高浓度充填料浆,呈现出流态良好的结构流体,黏稠状料浆在管道中流动时对管道磨损很小,流入采场后充填料浆扩散良好,无局部堆积与水砂分离情况发生,分仓进砂后尾砂沉降效率大幅提高,制备出的合格充填料浆充入采空区后,围岩受力环境明显改善,原有的地压显现得到有效抑制,该技术的实施为矿山绿色开采提供了有力保障。This paper studies the design and application of the cemented tailings filling system to realize green environmental protection and sustainable mining development.The results show that a high concentration filling slurry when the whole tail mortar is uniformly stirred by pneumatic liquefaction,with slump and concentration reaching250?270mm and70%?72%respectively.In a state of well structured fluid,the viscous slurry flows through the pipe and wears very little against the pipe.After is inflow to the stope,the filling slurry is well dispersed and no local accumulation occurs.When the qualified filling slurry is filled into the mined out area,the surrounding rock force environment is obviously improved,and the original ground pressure appearance is effectively suppressed.The implementation of this technology provides a powerful guarantee for green mining.

关 键 词：黏稠状浆体 应力 采空区 管道输送I尾砂充填 胶结充填 

分 类 号：TD853.34[矿业工程—金属矿开采]