| 低品位急倾斜中厚以下矿体采矿方法优选 |
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| 引用本文： | 周礼,欧任泽,林卫星,宋嘉栋,侯俊.低品位急倾斜中厚以下矿体采矿方法优选[J].黄金,2017,38(1). |
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| 作者姓名： | 周礼 欧任泽 林卫星 宋嘉栋 侯俊 |
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| 作者单位： | 1. 长沙矿山研究院有限责任公司;2. 国家金属采矿工程技术研究中心;3. 长春黄金研究院 |
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| 摘 要： | 获各琦铜矿5勘探线以西铅锌矿体位于铜矿体下盘,受上盘铜矿体回采及充填水的影响,矿体完整性受到严重破坏,矿岩稳固性大大降低,同时矿石品位较低,回采难度大。经技术经济对比分析,推荐采用点柱式上向水平分层充填采矿法回采该范围内中厚以下矿体,采场生产能力250 t/d,采矿损失率16%,矿石贫化率8%~10%,采矿成本84.43元/t。以该矿1630中段为例,采用点柱式上向水平分层充填采矿法能创造利润总额2 709.45万元。
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| 关 键 词： | 采矿方法 低品位矿体 急倾斜中厚以下矿体 点柱式上向水平分层充填采矿法 浅孔留矿嗣后充填采矿法 |
Selection of mining methods for the extraction of low-grade steeply dipping orebodies with medium thickness or less |
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| Zhou Li,Ou Renze,Lin Weixing,Song Jiadong,Hou Jun.Selection of mining methods for the extraction of low-grade steeply dipping orebodies with medium thickness or less[J].Gold,2017,38(1). |
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| Authors: | Zhou Li Ou Renze Lin Weixing Song Jiadong Hou Jun |
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| Abstract: | Because of the stoping of hanging side copper orebody and the water from filling slurry,the integrity of low grade lead-zinc orebody west the No.5 exploration line suffered great damage and its ore-bearing rock stability decreased greatly in Huogeqi copper mine.At the same time,the ore grade is low and the extraction is difficult.According to technical and economic analysis,the method of top slicing and filling stoping with pillars was recommended to stope the orebody with medium thickness or less.The stope production capacity was 250 t/d,the ore loss ratio was 16 ％,the ore dilution ratio was 8 ％-10 ％ and the mining cost was 84.43 yuan/t.Take the 1 630 m level for example,it could create 27.094 5 million yuan profits to use top slicing and filling stoping with pillars. |
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| Keywords: | mining method low-grade orebody steeply dipping orebody with medium thickness or less top slicing and filling stoping with pillars shallow-hole shrinkage and filling |
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