| 无底柱分段崩落法出矿贫化程度与矿石回收关系的研究 |
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| 引用本文： | 张志贵 刘兴国. 无底柱分段崩落法出矿贫化程度与矿石回收关系的研究[J]. 中国矿业, 1994, 3(5): 35-41 |
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| 作者姓名： | 张志贵 刘兴国 |
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| 作者单位： | 四川建材学院(张志贵)，东北大学(刘兴国) |
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| 摘 要： | 本文在实验基础上分析了无底柱分段崩落法出矿贫化程度与矿石回收的关系，得出了放矿正常后，采用不同贫化程度出矿，分段矿石回收率趋于一致的结论。研究表明，造成无底柱分段崩落法来出矿石贫比大的根本原因在于采用了不合理的截止品位放矿方式，无贫化放矿是无底柱分段崩落法最为理想的放矿方式。
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| 关 键 词： | 无底柱分段崩落法 无贫化放矿 截止品位放矿 残留体 矿石损失 矿石贫化 贫化程度 |
RESEARCH ON RELATIONSHIP BETWEEN ORE DLUTION AND RECOVERY IN ORE DRAWING IN SUBLEVEL CAVING MINING |
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| Zhang Zhigui, Liu Xingguo. RESEARCH ON RELATIONSHIP BETWEEN ORE DLUTION AND RECOVERY IN ORE DRAWING IN SUBLEVEL CAVING MINING[J]. CHINA MINING MAGAZINE, 1994, 3(5): 35-41 |
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| Authors: | Zhang Zhigui Liu Xingguo |
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| Affiliation: | Zhang Zhigui; Liu Xingguo(Sichuan Institute of Building Materials) (Northeastern University) |
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| Abstract: | This paper analyses the relationship between ore dilution and recovery in ore drawing in sublevel caving mining without bottom pillars, and concludes that every sublevel ore recovery after drawing is neerly same. Research shows that main cause of ore dilution in sublevel caving mining is tlnrational cut-off grade drawing. Non-dilution ore drawing is most ideal drawing mede. |
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| Keywords: | Sublevel caving mining without bottom pillars Non-dilution drawing Cut-off grade drawing Remained mass Ore loss Ore dilution Dilution level |
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