关键词: 铜尾矿, 浓缩脱水, 干堆技术, 干堆效果, 运行费用

Abstract: 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.

Key words: Copper tailings, Thickening and dewatering, Dry storage technology, Dry storage effect, Operating costs