Mine feeding orepass
The utility model relates to a mine feeding orepass which comprises a shaft. The upper opening end of the shaft is arranged on the ground surface, the lower opening end of the shaft is arranged a downhole working surface, the shaft wall of the shaft is composed of a single-reinforcement concrete lay...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a mine feeding orepass which comprises a shaft. The upper opening end of the shaft is arranged on the ground surface, the lower opening end of the shaft is arranged a downhole working surface, the shaft wall of the shaft is composed of a single-reinforcement concrete layer and an anchor net supporting layer from inside to outside in sequence, and a manganese steel abrasion-proof layer is further arranged on the inner side of the shaft wall. The diameter of the shaft is 3-5cm. The mine feeding orepass has the advantages of being large in opening diameter and good in feeding capacity, has a firm supporting measure, is stable in structure and long in service life, and can be used for a long time with one-time investment. |
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