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本文介绍克里沃罗格矿区各矿山在使用分段崩落法的条件下,16年来改善铁矿石回收指标的经验。认为:矿石回收指标(贫化率、矿石损失率、铁损失率)取决于所应用的分段崩落法方案;指出:为改善上述各项指标,在挤压条件下,采用垂直深孔崩矿方案代替水平深孔落矿和在大面积上放矿的方案是合理的。
This paper presents the experience of improving mines’ recovery indicators over the past 16 years under the conditions of the sub-caving method at various mines in Kerry Voronog. It is concluded that the indicators of ore recovery (depletion rate, ore loss rate and iron loss rate) depend on the sub-caving method applied. It is pointed out that in order to improve the above indexes, Plans to replace the level of deep-hole ore mines and ore over a large area of the program is reasonable.