摘要
Abstract
The uranium ores were mined by combined stope leaching and short hole shrinkage method in a stope. The scheme design(including cross road and rock raise,lixiviant distribution,the way of ore caving, and blasting parameters and equipment) and implementation including the ore caving of stope, lixiviant distribution by buried pipes in advance, set up of square-set raise, and stope leaching)of the combined mining method are introduced. High grade ores and low grade ores can be mined respectively by the method. Mined high grade ores were sent to surface and processed by heap leaching method, and low grade ores were leached in place after blasting. The uniformity of lixiviant distribution was realized through buried pipes in advance,and the total recovery of uranium is about 90%.关键词
原地爆破浸出/浅孔留矿/联合开采法/分采分爆Key words
stope leaching method/ short hole shrinkage method/ combined mining method/ respective mining and blasting of high grade ores and low grade ores分类
矿业与冶金
