中文摘要：

以石英砂模拟井下工况,对钻孔水力开采提升设备气举装置中影响扬砂特性因素进行了实验研究。实验结果表明：气举装置的吸口与矿床间存在最优间距;在供气量相同的条件下,浸入率越大,扬砂量越大;不同气流喷嘴安装角度影响气举的扬砂特性,本实验中喷嘴轴心线方向与提升管内壁切线方向间的夹角为10°时,提升效果最佳;气流喷嘴安装数目影响到气举装置的扬砂量,存在最佳喷嘴安装数;搅拌喷嘴是否安装有时是决定能否完成提升的关键因素。

英文摘要：

Using quartz sands to simulate the work condition,the experiment on the factors of sand lift which influences the lift effect in borehole hydraulic equipment is carried out.The experiment results show that there is an optimum distance between the intake and mineral deposit;under the condition of the same air input capacity;the lifting capacity increases with the submergence proportion;different installation angle of the water nozzle influences the effect of the sand lift;there is an optimally installation angle of 10 degrees between nozzle axial lead and tangential direction of the lift pipe wall;the number of air nozzles affect lifting capacity;the optimally installation nozzles number is 3;and whether fitting stir nozzles or not is the key factor which determines lifting success.