Method of exploiting minerals
This method is of the type in which slices of a section of stratum 2 (for example of potassium ore) are cut out by the repeated passage of a cutting out machine 7 from one end to the other of the section. The ore cut out is evacuated by a conveyor belt 12 which moves in translation and which extends...
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | This method is of the type in which slices of a section of stratum 2 (for example of potassium ore) are cut out by the repeated passage of a cutting out machine 7 from one end to the other of the section. The ore cut out is evacuated by a conveyor belt 12 which moves in translation and which extends from one end to the other of the section and it is taken to a point were the useful material is separated from the ore. The waste is taken to another conveyor belt 13 which moves in translation and which extends from one end to the other of the space left by the extraction and is used for backfilling, from one end to the other, on the side most distant from the slice being exploited in order to support the roof which is left unsupported.
CE PROCEDE EST DU TYPE DANS LEQUEL ON ABAT DES TRANCHES D'UN PANNEAU DE GISEMENT 2 (PAR EXEMPLE DE MINERAI DE POTASSE) PAR LE PASSAGE REPETE D'UNE MACHINE D'ABATTAGE 7 D'UNE EXTREMITE A L'AUTRE DU PANNEAU. LE MINERAI ABATTU EST EVACUE PAR UN TRANSPORTEUR A COURROIE 12 MOBILE EN TRANSLATION QUI S'ETEND D'UNE EXTREMITE A L'AUTRE DU PANNEAU ET IL EST ENVOYE A UN POINT OU LA MATIERE UTILE EST SEPAREE DU MINERAI. LE STERILE EST ACHEMINE A UN AUTRE TRANSPORTEUR A COURROIE 13 MOBILE EN TRANSLATION QUI S'ETEND D'UNE EXTREMITE A L'AUTRE DU VIDE LAISSE PAR L'EXTRACTION, ET UTILISE POUR REMBLAYER D'UNE EXTREMITE A L'AUTRE SUR LE COTE LE PLUS ELOIGNE DE LA TRANCHE EN EXPLOITATION POUR SOUTENIR LE TOIT LAISSE NON SOUTENU. |
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