ABSTRACT

The mining industry is increasingly facing lower feed grades, which is resulting in the necessity to reduce mining and processing costs. One of the most renowned approaches to increasing feed grades is the application of pre-concentration technologies prior to introducing the extracted ore to the main processing plant. This paper reviews the concept of pre-concentration systems and identifies the benefits of pre-concentration in underground mining through the rejection and appropriate deposal of waste and/or low-grade materials. All previous studies into underground pre-concentration theories and applications together with the highlights that were achieved are presented. This is followed by recommendations for future works.

摘要

采矿业正面临着更低的饲料等级，这导致有必要降低采矿和加工成本。提高饲料品位的最著名方法之一是在将提取的矿石引入主选矿厂之前应用预浓缩技术。本文回顾了预浓缩系统的概念，并通过拒绝和适当处置废物和/或低品位材料来确定预浓缩在地下采矿中的好处。介绍了以前有关地下预浓缩理论和应用的所有研究，以及取得的成就。接下来是对未来工作的建议。