Method for cutting minerals and cutting machine

Details Method for cutting minerals and cutting machine Method for cutting minerals and cutting machine

E - Fixed Constructions

21

C

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E21C 25/06 (2006.01) E21C 25/16 (2006.01) E21C 27/24 (2006.01) E21C 31/02 (2006.01) E21C 31/10 (2006.01) E21D 9/10 (2006.01)

Patent

CA 1061811

ABSTRACT OF THE DISCLOSURE The present invention provides a method for cutting minerals utilizing a cutting tool means provided with cutting teeth, said tool means rotating about an axis approximately par- allel to the winning face and being moved at a feeding rate essentially in axial direction, said method characterized in that several grooves distant from each other are carved after each other in engaging sequence and that in dependence on the mineral properties the feeding rate is increased with respect to the rotatory velocity when a brittle mineral is to be cut whilst the feeding rate is diminished with a tough mineral.

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