发明名称 |
Continuous extraction of underground narrow-vein metal-bearing deposits by thermal rock fragmentation |
摘要 |
A method for extracting minerals from a narrow-vein deposit by thermal fragmentation is provided. The method includes locating the vein and determining the extent thereof to form the boundaries of a stope. Access to the stope is prepared by forming a panel having an upper drift and a lower drift. Equipment for thermal fragmentation, including a burner, is installed from the upper drift. The burner moves along the panel surface in a sweeping motion, while rock chips spalled from the rock panel surface are collected. Multiple panels for processing can be realised, with lower panels being processed before upper panels, by excavating a sub-level to separate the lower and upper panels.
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申请公布号 |
US2005242654(A1) |
申请公布日期 |
2005.11.03 |
申请号 |
US20040836616 |
申请日期 |
2004.05.03 |
申请人 |
FECTEAU JEAN-MARIE;POIRIER SYLVIE;LAFLAMME MARCEL;CHAMPOUX GILL |
发明人 |
FECTEAU JEAN-MARIE;POIRIER SYLVIE;LAFLAMME MARCEL;CHAMPOUX GILL |
分类号 |
E21C37/16;E21C41/16;(IPC1-7):E21C37/16 |
主分类号 |
E21C37/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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