祝家排土场堆浸排土台阶高度优化研究

Optimization Research of Bench Height of Dump Leaching at Zhujia Dumping Site

德兴铜矿成功利用含菌的酸性水浸出含铜废石中的铜 ,经过几年生产实践 ,目前还存在浸出液含铜浓度不高 ,产生电铜量少和成本较高等问题。为此 ,以不同台阶高度铜的浸出率和不同台阶高度的运输功、排出成本为基础 ,从提高浸出率及降低排土成本两方面研究了排土台阶高度。研究结果表明 ,在排土台阶高度为 10m、2 0m、3 0m的情况下 ,其排土成本以 10m台阶高度最大 ,2 0m、3 0m的成本变化不大。考虑堆浸时的排土台阶高度以 10～ 2

Dexing Copper Mine has successfully recovered the copper from copper containing waste rock by bacteria containing acid water leaching.Through several years' production practice,it has been found that there still exist the problems of not high copper concentration in the leacheate,small electrolysed copper and high cost.The height of the dump bench is studied from the aspects of increasing the leaching rate and reducing the dumping cost.The research results show that the dumping cost is the highest at a bench height of 10 m and is little varied at height of 20 m or 30 m. It is concluded that the height of dumping bench is better to be between 10 m and 20 m