论文部分内容阅读
虽然堆浸已被确定作为一种能用于处理某些铜、金和锌矿石的一种工艺方法,并且这一工艺已扩大到用于处理某些其它类型的矿石,例如硝石(KNO3)和矿山尾矿,但有关这一工艺的优化问题,甚至可以说尚未进行过系统研究。通常情况下,堆浸作业都是进行到直至达到最高的浸出率时为止,或是直至观测到从浸堆排放溶液中的浓度已不再提高时为止。本文所述的这项研究进行了分析,以确定从经济的观点看是否存在着最佳浸出条件的一些判据。在一家铜矿选矿厂中考查了两个可变因素是:1)浸出时间和2)浸堆高度。研究结果表明,浸堆的设计(浸堆的高度)和运行计划(操作时间)是能相互影响的因素,并且从经济方面考虑,最高的浸出率,不一定是操作效率最佳的度量。
Although heap leaching has been identified as a process that can be used to treat some copper, gold and zinc ores, this process has been extended to treat some other types of ores such as nitrate (KNO3) and Mine tailing, but the optimization of this process, we can even say that no systematic study. Usually, heap leaching is performed until the highest leaching rate is reached, or until it is observed that the concentration in the discharged solution from the leachate no longer increases. The study described in this article was analyzed to determine some of the criteria for optimal leaching conditions from an economic point of view. Two variables were examined in a copper concentrator: 1) leaching time and 2) immersion height. The results of the study indicate that the design of the leach stack (heap height) and the operating plan (hours of operation) are mutually influencing factors, and the highest leaching rate is not necessarily the most efficient measure of economic efficiency.