关键词: 尾矿库, 上游法筑坝, 旋流分级, 工艺流程, 理论计算

Abstract: In view of the lack of theoretical design methods for the classification system in the damming process of high concentration tailings ponds,13 key calculation parameters for the design of classification system were summarized by classifying the relevant parameters. Based on theoretical analysis,the theoretical calculation formulas for construction period,sediment yields and distribution rate of original tailings were put forward,the selection and quantity determination process of hydrocyclones based on separation particle size were analyzed,and the production scale of the dressing plant and the efficiency of dam construction were explained. A systematic calculation method of cyclone classification process parameters is derived,and the feasibility and effectiveness of the established calculation method are verified according to the construction practice of a high concentration discharge tailings pond. The results show that the calculation results of the underflow tailings,overflow tailings concentration,sediment yields,and the -200 mesh particle content in the underflow tailings are in good agreement with the monitoring values when the feed tailings concentration is similar to the calculated set value. The research results can provide theoretical and technical support for the upstream tailings dam construction of high concentration tailings ponds.

Key words: tailings pond,upstream embankment method,hydrocyclone classification,process flow,theoretical calculation