Rotary cutter for extracting hard rock

Details Rotary cutter for extracting hard rock Rotary cutter for extracting hard rock

E - Fixed Constructions

21

C

E21C 25/16 (2006.01) E02F 3/24 (2006.01) E21C 47/10 (2006.01)

Patent

CA 2112813

Proposed is the use of a wheel-shaped rotary cutter for the continuous working of hard mineral-rock beds with a cylinder crushing resistance of greater than or equal to 20 MPa, the cutter being fitted both round its circumference and at the sides with a multiplicity of cutting elements. The cutter is driven to operate in the vertical plane, powered by a generator with an installed rating of at least 0,3 kW per theoretically calculated cubic meter of rock extracted per hour.

Il est proposé l'utilisation d'un outil de fraisage à disque pour l'extraction en continu de couches de roche minérales dures avec une résistance à l'écrasement cylindrique supérieure ou égale à 20 MPa, l'outil de fraisage étant muni tant sur sa circonférence que sur ses faces frontales d'une pluralité d'éléments de coupe. L'outil de fraisage est utilisé en trait d'abattage, en coopération avec un équipement moteur présentant une puissance installée d'au moins 0,3 kW par m3/h de puissance d'extraction théorique.

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