铜尾矿的一种新型干堆技术

首先介绍了我国铜尾矿的现状,并对现有铜尾矿的处理方法作了简要总结。针对目前铜尾矿处理方法中存在的问题,以实现铜尾矿处理为目标,首先使粗细颗粒分级,再分别进行浓缩脱水的方法,确定了在目前条件下一种较为合理的铜尾矿新型干堆技术。同时,对该干堆技术中采用的主要设备作了简单描述,并对该技术与其他干堆技术在适用范围、技术、经济等方面进行了对比。经实践证明,通过该技术处理的铜尾矿,粗粒部分含水量可控制在18%以下,细粒部分含水量控制在23%以下,可直接实现皮带输送或汽车运输,完全达到了干堆的要求。与常规处理方法相比,具有设备一次性投资少,干堆效果好,运行费用低,设备维修维护简单等明显优点,是目前为止一种技术上可行、经济性上合理的尾矿干堆技术。该技术对其他类型的尾矿具有借鉴意义。

A New Technology about Dry Storage of Copper Tailings

The current situation of copper tailings was firstly introduced，and the existing disposal methods of copper tailings were summarized briefly.Aiming at the existing problems in the disposals of copper tailings，and with the purpose of realizing copper tailings disposal，a more reasonable and new dry storage technology of copper tailings under the present conditions was determined by the process of thickening and dewatering following by classification of coarse particles and fine particles.Secondly，the main equipment used in the dry storage technology was described in brief，and the contrast of this technique with other technologies was made from aspects of the scope of application，process and economy etc.The practice proved that through the technical processing on the copper tailings，the water content of coarse tailings can be controlled below 18%，and the water content of fine tailings below 23%.The tailings can be transported by the belt conveyor or automobile directly，which fully meet the requirements of dry storage.Compared with the conventional processing，this dry storage technology have advantages of less investment，lower operating costs and better dry storage effect，simply repairing and maintenance and so on.It is a kind of dry storage technique of being technically impossible and economically reasonable.This technology has a reference for the other similar mine.