Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 63-66.
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The natural properties of mineral resources are contradictory to the requirements of ore quality balance and stable supply in mineral processing production.In view of the large fluctuation of ore sup⁃ ply in complex multi-metal open-pit mines，a new ore blending mode is proposed to adjust the temporal and spatial relationship of mining through artificial pre-preparation plan and strict ore blending process，so as to maintain a balanced ore supply in a certain period of time. Taking the actual ore blending of Tongjie-Manjia⁃ zhai open-pit mine as an example，the ore blending scheme is obtained by computer programming，and the sample of source fixed frequency and verification of end ore blending results are strengthened. The solidified fine ore blending method can make the grade limit of each element in the polymetallic mine within the con⁃ trollable range，and the qualified rate of ore blending grade can increase by 3 percentages，so that the ore supply quality can meet the stable and efficient ore dressing production demand to the maximum extent，and realize the improvement of comprehensive economic and technical indicators of mining and beneficiation.
